/sci/ - Science & Math » Thread #10666075

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/sqt/ - Stupid Questions Thread

Anonymous Thu 23 May 16:18:04 2019 No.10666075 View Reply Original Report

Feel free to ask your stupid questions here.
Last thread: >>10634898

Anonymous

Anonymous Thu 23 May 2019 16:24:31 No.10666084 Report

Quoted By: >>10666091 >>10674751

>>10666075
The only thing stupid here is she getting down on her knees without a pillow.

Anonymous

Anonymous Thu 23 May 2019 16:26:34 No.10666088 Report

Quoted By: >>10666129

>>10666075
How do I get the motivation to study physics? This shit bores me to death.

Anonymous

Anonymous Thu 23 May 2019 16:27:49 No.10666091 Report

Quoted By:

>>10666084
That’s not happening.

Anonymous

Anonymous Thu 23 May 2019 16:28:34 No.10666092 Report

Quoted By: >>10666343

>>10666075
Why does this girl have bigger arms than me and why can't I build muscle?

Anonymous

Anonymous Thu 23 May 2019 16:45:29 No.10666129 Report

Quoted By:

>>10666088
Why study physics if you don't like it? Are you still in high school?

Anonymous

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Anonymous Thu 23 May 2019 16:50:27 No.10666138 Report

Quoted By: >>10676794

fucking whore

Anonymous

Anonymous Thu 23 May 2019 17:12:21 No.10666175 Report

Quoted By: >>10667186 >>10671672

>>10666075
Is a relation transitive if just one set of pairs are?

e.g. R = {<2,3>, <3,4>, <2,4>} has the transitive pairs <2,3>, <3,4>, and <2,4> but not <3,2> which would make <3,2><2,4><3,4> transitive. Is this relation still transitive?

Anonymous

Anonymous Thu 23 May 2019 18:21:02 No.10666292 Report

Quoted By: >>10666339 >>10668577 >>10671828 >>10677733

>>10666075
Hi /sci/,

I have an interview for a lab specialist position coming up, and I'm a little concerned about what the proper dress code may be. My father comes from the world of professional/business work, and is pushing me to get a suit. I on the other hand think that someething more business casual would be appropriate (blazer, dress shirt, casual dress pants).

The lab is on a university campus if that helps at all. Also some advice for the actual interview would be most helpful. Thanks y'all.

Anonymous

Anonymous Thu 23 May 2019 18:37:32 No.10666339 Report

Quoted By: >>10666346 >>10666377 >>10674658

>>10666292
take two exact same people, literally identical.

Dress one in a suit, the other with casual dress pants and a blazer.

Which do you want more in your team, all else being equal?

just put on the suit even if it's overkill. At least it shows you're willing to go above and beyond to get the position

Anonymous

Anonymous Thu 23 May 2019 18:38:21 No.10666343 Report

Quoted By: >>10666391 >>10666402

>>10666092
you can build muscle

You dont train, eat or sleep appropiately.

Anonymous

Anonymous Thu 23 May 2019 18:39:04 No.10666346 Report

Quoted By: >>10671954

>>10666339
>Which do you want more in your team, all else being equal?
the non-autistic one who isn't wearing a suit

Anonymous

Anonymous Thu 23 May 2019 18:49:38 No.10666368 Report

Quoted By:

>>10666075
wow Moscow metro.

Anonymous

Anonymous Thu 23 May 2019 18:56:17 No.10666377 Report

Quoted By:

>>10666339
I see what you're saying, and I agree with that point. Fuck it I'll prolly go to a men's dress store and get myself fitted. Thanks for the input

Anonymous

Anonymous Thu 23 May 2019 19:05:27 No.10666388 Report

Quoted By: >>10679917

The difference between a red and a green liquid crystal is in the strength of electricity applied to them, right?

Anonymous

Anonymous Thu 23 May 2019 19:07:17 No.10666391 Report

Quoted By: >>10666402

>>10666343
Actually your frame limits how much muscle you can naturally put on. I am not that poster but I have thinner wrists than many women and small 7" hands. I am weaker than my 56 year old mother and her wrist is at least twice as thick as mine.

Anonymous

Anonymous Thu 23 May 2019 19:14:28 No.10666402 Report

Quoted By: >>10666539 >>10668029

>>10666391
This is a separate issue than lack of hypertrophy though
Some people are naturally able to generate a lot more hypertrophy and can become big even with slender frames at the beginning, but those who can't experience hypertrophy at all will remain the same

Also, how can your mother have huge wrists and yours small? Should your dad have been a genetic dead-end?

Anyway my hands are 7" too, but the most prominent feature of my muscles is that they won't grow

>>10666343
No, I can't, I have tried everything and lift just like everybody but they grow and not me. I only put on fat. Also, the last three digits of your post is 7^3, so you are really lucky and don't know it

Anonymous

Anonymous Thu 23 May 2019 19:14:56 No.10666404 Report

Quoted By: >>10666447 >>10679920

Convince me not to double major in in EE and ME.

Anonymous

Anonymous Thu 23 May 2019 19:35:00 No.10666447 Report

Quoted By: >>10666463

>>10666404
That's not a question. You can't even read a thread, how are you going to double major?

Anonymous

Anonymous Thu 23 May 2019 19:35:37 No.10666448 Report

Quoted By: >>10666485 >>10666516 >>10671600 >>10676047

I used to be doing alright in all of my college classes

this last semester was disastrous. For whatever reason, no matter how much I studied or practiced, I felt confused by the material and that anything I learned I forgot immediately after. it's not that the material was too hard, it's just none of it stuck

I also started fucking up even really simple problems like basic algebra in calculus, as if all of my confidence in math had just evaporated. I blanked on tests in my classes and it just exacerbated the problem 10 fold

is there a term for this? What the fuck happened and how do I reverse it?

Anonymous

Anonymous Thu 23 May 2019 19:40:35 No.10666463 Report

Quoted By: >>10666957 >>10672883

>>10666447
Shut the fuck up faggot, i'm requesting answers for my post, were else is it going to go on sci? bitch

Anonymous

Anonymous Thu 23 May 2019 19:51:43 No.10666485 Report

Quoted By:

>>10666448
You need a break my dude. Learn what you like for a little while, then go back to learning what you need, should be right as rain

Anonymous

Anonymous Thu 23 May 2019 20:05:13 No.10666516 Report

Quoted By:

>>10666448
You're a brainlet.

Anonymous

Anonymous Thu 23 May 2019 20:15:06 No.10666539 Report

Quoted By: >>10668071

>>10666402
Eat a lot of protein and lift 3-4 times weekly, big compound lifts. Track your caloric intake as well. Get 8+ hours of sleep every night.

If you dont put on muscle weight after a month, add 500 calories to your daily diet, and then see how it goes after another two weeks. Then add 500 more. If you're gaining fat, lower the nonprotein component of your diet and start adding in cardio (you should do that anyway I guess)

Your body is not defiant of the laws of thermodynamics and is not an extreme abberation from all other humans.

Anonymous

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Anonymous Thu 23 May 2019 21:53:51 No.10666900 Report

Quoted By: >>10666913 >>10667434

does the x in the numerator become 1 because when doing u-sub, you take the derivative of all instances of x in the function?

Anonymous

Anonymous Thu 23 May 2019 21:57:49 No.10666913 Report

Quoted By:

>>10666900
No it becomes 1 because x dx = - du/8

Anonymous

Anonymous Thu 23 May 2019 22:25:23 No.10666957 Report

Quoted By: >>10666965

>>10666463
>Cannot write a proper sentence
>Cannot read the thread topic
>Wants to double major
Do it. I fucking dare you.

Anonymous

Anonymous Thu 23 May 2019 22:30:48 No.10666965 Report

Quoted By: >>10666985

>>10666957
>newfag that doesn't know what the purpose of /sqt/ and /qtddtot/ are on boards.
>thinks my point is invalid because I missed one letter of a word on a 4chan post
>acting this salty over someone double majoring
a prime example of a man-child, everyone.

Anonymous

Anonymous Thu 23 May 2019 22:37:55 No.10666985 Report

Quoted By: >>10667004

>>10666965
>Underage 17 year old retard
>Calls someone a newfag despite being fresh off the Reddit boat.
>Still doesn't understand what a question is
>Projects his stupidity and anger on to someone else
A prime example of a future dropout, everyone.

Anonymous

Anonymous Thu 23 May 2019 22:39:34 No.10666993 Report

Quoted By:

>>10666075
Is that Budapest metro ?

Anonymous

Anonymous Thu 23 May 2019 22:43:16 No.10667004 Report

Quoted By: >>10667027

>>10666985
>gets called out for being a newfag because he doesnt know the history of /sqt/ and /qtddtot/
>''youre the newfag! and youre underage! and youre dumb!''
fuck off you insecure little shit

Anonymous

Anonymous Thu 23 May 2019 22:50:50 No.10667027 Report

Quoted By: >>10667031

>>10667004
You're seething. Your replies are pottery and music to my ears.

Also, learn how sage works so you don't bump the thread with your shit posting.

Anonymous

Anonymous Thu 23 May 2019 22:52:29 No.10667031 Report

Quoted By: >>10667034

>>10667027
never stop being a nigger, you salty dropout

Anonymous

Anonymous Thu 23 May 2019 22:53:56 No.10667034 Report

Quoted By: >>10667041

>>10667031
HELLO FELLOW MAGAPED. BASED AND REDPILLED. HOW CAN WE OWN LIBTARDS TODAY?

Anonymous

Anonymous Thu 23 May 2019 22:56:36 No.10667041 Report

Quoted By: >>10667057

>>10667034
I knew nigger would make you upset. You'll always be a dropout.

Anonymous

Anonymous Thu 23 May 2019 22:57:33 No.10667042 Report

Quoted By: >>10667045

if someone's this immature they're not qualified for EE or ME desu

Anonymous

Anonymous Thu 23 May 2019 22:58:28 No.10667043 Report

Quoted By: >>10667056

Is the relativity of simultaneity something profound or is it just a product of the finite speed of light?

Anonymous

Anonymous Thu 23 May 2019 22:59:04 No.10667045 Report

Quoted By: >>10667050

>>10667042
Such as yourself? You dropout nigger.

Anonymous

Anonymous Thu 23 May 2019 23:01:16 No.10667050 Report

Quoted By:

>>10667045
I'm not even the same person but go off I guess

Anonymous

Anonymous Thu 23 May 2019 23:03:41 No.10667056 Report

Quoted By: >>10667062

>>10667043
It's both.

Anonymous

Anonymous Thu 23 May 2019 23:04:55 No.10667057 Report

Quoted By:

>>10667041
S-E-E-T-H-I-N-G
E
E
T
H
I
N
G

I also haven't dropped out, but if you want to throw my insults back at me and pretend they're your own, you can go for it. Very original.

Anonymous

Anonymous Thu 23 May 2019 23:07:03 No.10667062 Report

Quoted By: >>10667075

>>10667056
Can we conceptualize events within an "absolute" frame of reference, just with their own light cones that make things appear to happen at different times? Or is this incorrect?

Anonymous

Anonymous Thu 23 May 2019 23:11:36 No.10667075 Report

Quoted By: >>10667094

>>10667062
Relativity means that is no absolute frame and you can never construct one. You can only discuss simultaneity within some locality.

Anonymous

Anonymous Thu 23 May 2019 23:20:16 No.10667094 Report

Quoted By: >>10667112

>>10667075
I'm having a hard time conceptualizing that. Why can't you pick one frame of reference, make the observations, correct for the time that it took light to arrive at the present location, and then get a snapshot of what that timeslice "actually" looks like?

Anonymous

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Anonymous Thu 23 May 2019 23:26:40 No.10667111 Report

Quoted By: >>10667182 >>10667474

I have my organic chemistry 1 final tomorrow. I can't differentiate between E1 E2 SN1 SN2. Does anyone have good pointers for me? I know what I need to do if they give me heat and a base but how do I tell between E1 and E2 if its ambiguous what the strenght of the base is? Anyone willing to help a major retard?

Anonymous

Anonymous Thu 23 May 2019 23:26:54 No.10667112 Report

Quoted By: >>10667123

>>10667094
Of course you can do that. That is literally what a frame of reference is. However that is a frame for those two observers only. Now add a 3rd observer, a 4th and so on. There is no "correct" frame, only what can be viewed by each separately.

Anonymous

Anonymous Thu 23 May 2019 23:32:57 No.10667123 Report

Quoted By: >>10667159

>>10667112
Is there an example where simultaneity has to be relative without any motion?

Anonymous

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Anonymous Thu 23 May 2019 23:46:54 No.10667152 Report

Quoted By: >>10667166 >>10667499 >>10672893

Does anyone else feel like academia has completely ruined your ability to talk properly? I feel like I always need to pick my words so carefully in academic settings to make sure the crotchety Professor Emeritus sitting at the back of the lecture hall doesn't get up and throw a fit because you used some technical jargon in a slightly incorrect way, or simplified some minor detail that they happened to have spent the past three decades of their life researching.

Its started to leak into my private life now where I can't just sit and have a natural conversation with someone. It's like I have to consciously plan out every sentence before saying it which makes for really unnatural, stuttery, robotic conversation.

Did grad school legitimately give me fucking autism what the fuck

Anonymous

Anonymous Thu 23 May 2019 23:48:53 No.10667159 Report

Quoted By: >>10667197

>>10667123
The point is that simultaneity is always relative but in simplified cases such a local, Newtonian motion you can just assume it isn't.

Anonymous

Anonymous Thu 23 May 2019 23:50:36 No.10667166 Report

Quoted By:

>>10667152
being a brainlet must be awful

Anonymous

Anonymous Thu 23 May 2019 23:58:17 No.10667182 Report

Quoted By: >>10667300

>>10667111
Both E1 and SN1 proceed via a carbocation intermediate. That is to say, your leaving group withdraws its electrons from the carbon it is attached to and puts a positive charge on the carbon.

In order for the carbon to be willing to give up its electrons to the leaving group there has to be a lot of stuff around it that it can borrow electron density from.

If the carbon is only attached to the leaving group, another carbon and some hydrogen then it isn't going to want to give up those electrons under most circumstances. If instead it is attached to two other carbons along with the leaving group and a hydrogen then it might be ok with it. If it is attached to three other carbons and the leaving group then it will be absolutely fine with it.

If we really want the leaving group to bugger off and the carbon doesn't want to play along we can still force it off. That is where Sn2 and E2 come in.

In an Sn2 reaction we are kind of giving the carbon something that it wants to bond with more than the leaving group.

In E2 we do a trick where we use a base to pull off a hydrogen on the neighbouring carbon which causes a double bond to form between that carbon and the one with the leaving group and kicks off the leaving group. There is an important stipulation on this though: it only works if the hydrogen is anti to the leaving group.

Anonymous

Anonymous Fri 24 May 2019 00:01:39 No.10667186 Report

Quoted By:

>>10666175
Kinda forgot my discrete math, but I believe you'd say that it's transitive on those pairs. Don't think every element has to be in a transitive relation for the set to be 'transitive'. Fact check this though I'm not 100% sure.

Anonymous

Anonymous Fri 24 May 2019 00:09:36 No.10667197 Report

Quoted By: >>10667232

>>10667159
I mean is there an example to elucidate what's going on with events that happen far away but are stationary? The examples that I've seen online all have moving parts.

Anonymous

Anonymous Fri 24 May 2019 00:13:43 No.10667208 Report

Quoted By: >>10667210

So is that bitch in Budapest metro or not ? Can anyone confirm ?

Anonymous

Anonymous Fri 24 May 2019 00:15:01 No.10667210 Report

Quoted By:

>>10667208
Oh nvm it's Russia.

Anonymous

Anonymous Fri 24 May 2019 00:20:52 No.10667232 Report

Quoted By:

>>10667197
If the velocity of the moving parts is constant and acceleration isn't involved then it doesn't matter if the velocities are zero or not. Note that in that example you can always move to a frame where one of the parts is stationary.

Anonymous

Anonymous Fri 24 May 2019 00:21:34 No.10667235 Report

Quoted By: >>10667263

is it possible to 'invert' the chemistry of a drug to make it do the exact opposite of what the drug does? for example if a drug is an inhibitor of x could you make the inverse variant of the same drug to undo the effect or have the opposite effect?

Anonymous

Anonymous Fri 24 May 2019 00:33:15 No.10667263 Report

Quoted By:

>>10667235
It is possible for a one drug to have roughly the opposite effect of another (sedatives vs stimulants for instance) or for one to reverse the effect of another but they generally won't be closely related in terms of their chemistry and structure.

Anonymous

Anonymous Fri 24 May 2019 00:46:08 No.10667300 Report

Quoted By: >>10667332

>>10667182
Here is an example of something that I am unsure of: pic related.

I personally think that it is E1 given the heat, 3° carbon the L.G is bonded to and the strenght of the base (which is sort of weak), however, since we don't have to solution to these problems I had to ask a friend and he says that it is E2 and that it can't form a bond in the middle because it require anti-periplanar. In my notes we are told that ch3o- is a strong base/nucleophile and that ch3ch2nh2- is also part of this strong base/nu group. So is it E1 or E2? Based off of what you've told me and what I am given I am inclined to say it is E1 but say that it is E2, would it form a bond in the middle? I identify this as anti periplanar but he's basicly the best orgo student in our class... Thanks for your help btw, I don't recall ever being this worried about an exam before.

Anonymous

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Anonymous Fri 24 May 2019 00:53:14 No.10667332 Report

Quoted By: >>10667428

>>10667300
>pic related
>doesnt post pic
>is also struggling with basic chemistry
Q.E.D
It's a large pic, I hope nippoot let's me send it.

Anonymous

Anonymous Fri 24 May 2019 01:29:24 No.10667424 Report

Quoted By:

does farting on your poop add any health benefits and/or flavor??

Anonymous

Anonymous Fri 24 May 2019 01:30:14 No.10667428 Report

Quoted By: >>10667445

>>10667332
So, in this case both E1 and E2 reactions will occur, however E2 will occur faster (E2 is a concerted mechanism whereas E1 has two steps) so the product of that reaction will dominate.

In this case however I'm pretty sure they have the same product, with the double bond down the middle of the two rings like you've drawn. If the indicated hydrogen was pointing up instead of down then the E2 product would have the double bond in one of the rings rather than between them. But if the hydrogen drawn pointing down in the question I'd say that having the bond between the rings is what they were after.

Anonymous

Anonymous Fri 24 May 2019 01:33:06 No.10667434 Report

Quoted By:

>>10666900
No, you don't take derivatives of all instances of x, the purpose of u-substitution is to convert the integral into something simpler ,such that, you find a component of the original function that contains x and that will produce a simpler integrand with respect to the new variable u. The du relation comes from the derivative of what you set u equal to from the original function.

In the example you provided, the product x*dx (the remaining components of the original integrand that are left after substituting for u) becomes -?*du, as obtained from the derivative of u calculation. So to answer your question, it isn't just the x that changes it's the product of the x and the differential of x that produces a simpler integrand with respect to u, so that the integrant with respect to u can then be integrated and then reverse substituted to obtain your answer. All they did in that image was move the -? to the outside, but really its the product of x and dx that was replaced, not just x.

Anonymous

Anonymous Fri 24 May 2019 01:39:10 No.10667445 Report

Quoted By: >>10667453

>>10667428
Alright, thanks fren, I owe you. So in a case such as this I will assume the a bimolecular reaction molecular reaction will occur faster and be the major product. I would assume that bimolecular reactions are faster in the case of SN reactions too.

Anonymous

Anonymous Fri 24 May 2019 01:43:14 No.10667453 Report

Quoted By: >>10667467

>>10667445
>I would assume that bimolecular reactions are faster in the case of SN reactions too.

Yes. There will always be weird exceptions but in generally something that takes a single step (sn2) occurs much faster than something that takes two (sn1).

Anonymous

Anonymous Fri 24 May 2019 01:49:09 No.10667467 Report

Quoted By: >>10667489

>>10667453
Since you're still there, do you have any tips to draw resonance structures properly?

Also
>weird exceptions
My teacher isn't the one making the exam so I could always get some funny surprise.

Anonymous

Anonymous Fri 24 May 2019 01:51:21 No.10667474 Report

Quoted By: >>10667483

>>10667111
>if its ambiguous what the strenght of the base is?

Also, you can guess at how strong the base it if you know the strength (or rather, weakness) of its conjugate acid. In the example you have you have ethoxide as a base. Well, if we stick a hydrogen to it we get its conjugate acid: ethanol. Ethanol is not a very strong acid at all. So ethoxide is a very strong base.

Anonymous

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Anonymous Fri 24 May 2019 01:57:55 No.10667482 Report

Quoted By:

If I want to be a statistician would it make sense to get a CS BS and then a Statistics MS?
Or would it be better to get some other undergraduate degree?

Anonymous

Anonymous Fri 24 May 2019 01:58:11 No.10667483 Report

Quoted By:

>>10667474
>the conjugate acid
Yeah I guess I could do that but I also need to know the acid strenghts. I'll just guess it I guess.

Anonymous

Anonymous Fri 24 May 2019 01:59:29 No.10667489 Report

Quoted By: >>10667773

>>10667467
>Since you're still there, do you have any tips to draw resonance structures properly?

You mean figuring out the different resonance contributors? Draw it's Lewis diagram. If you find there are several ways to do it, those different ways are your resonance contributors. I'm afraid there isn't really a trick to it. It's just a matter of practice.

Anonymous

Anonymous Fri 24 May 2019 02:00:37 No.10667490 Report

Quoted By: >>10667507 >>10668583

>>10666075
just finished up my sophomore year going for applied physics with a minor in math, what programming language should i try and learn the basics of during summer break? Like what language would benefit me the most going forward in my education/research? I already know Python pretty well and am familiar with the basic of C++.

Anonymous

Anonymous Fri 24 May 2019 02:03:01 No.10667499 Report

Quoted By: >>10671454 >>10672050

>>10667152
You just need to figure out when and where to give a shit about the accuracy/analytical nature of what your saying. I also had issues with this, and honestly, the best thing you could do is spend some time of your day getting into the habit of doing an activity where the brain isn't trying to analyze ever little detail. For example: an aimless walk where you just sort of naturally process what's around you, or perhaps some breathing exercises or meditation, if you drink coffee or tea, just sit at a cafe and look out the window for awhile without a mental agenda. This will give your brain some time to sort things out. Two things will come out of this in the long run, 1) you'll naturally align with a feeling other than the constant analytical anxiety you're experiencing, and 2) after some initial training, your brain will automatically start to associate that feeling with the situations where you don't need yo think about every last word. If this at all interests you, look up mindfulness.

Anonymous

Anonymous Fri 24 May 2019 02:11:41 No.10667507 Report

Quoted By: >>10671923 >>10672594

>>10667490
Coming from an engineer, look into some MATLAB. If you ever work with large sets of data or need to model some data, its much easier than python or C++. Java is a useful language as well and would be easy for you to learn coming from C++

Anonymous

Anonymous Fri 24 May 2019 03:15:34 No.10667773 Report

Quoted By:

>>10667489
The lewis stuff might help me a lot though. Thanks a lot.

Anonymous

Anonymous Fri 24 May 2019 04:58:35 No.10668029 Report

Quoted By:

>>10666402
You are not one in billions, who cannot somehow adapt to physical stress

How do you workout
What do you eat
How much do you sleep a day

Answer you dyel brainlet

Anonymous

Anonymous Fri 24 May 2019 05:15:40 No.10668071 Report

Quoted By: >>10676060

>>10666539
Would you recommend cardio for building muscle? I’m trying to maximize my gains

Anonymous

Anonymous Fri 24 May 2019 10:58:04 No.10668577 Report

Quoted By: >>10668949

>>10666292
Business casual is way more appropriate. It's a lab at a university, not a law firm.

Anonymous

Anonymous Fri 24 May 2019 10:59:17 No.10668583 Report

Quoted By:

>>10667490
Haskell because then you'll at least have fun and your Python will get better.

Anonymous

Anonymous Fri 24 May 2019 13:17:08 No.10668814 Report

Quoted By:

Pharmacology question:
When I consume zopiclone for a good night's rest, I have terrible insomnia the night after to the point of not sleeping at all. Afaik, this should not be possible with its half-life of 5 hours. Also, I seem to be the only person with this specific problem. Can this be withdrawal (from 1 fucking pill over the period of 5 months) or is something else causing the day-after insomnia?

Anonymous

Anonymous Fri 24 May 2019 14:15:09 No.10668888 Report

Quoted By: >>10669590 >>10673746 >>10677929

>>10666075

What is the relationship between consciousness and the physical world?

Anonymous

Anonymous Fri 24 May 2019 14:44:04 No.10668949 Report

Quoted By:

>>10668577
That's what I'm thinking. I think I'll go for the business casual look and try my best to look sharp/confident. Thanks anon.

Anonymous

Anonymous Fri 24 May 2019 17:25:34 No.10669291 Report

Quoted By: >>10669362

>>10666075
the meteor won't hit us, right?

Anonymous

Anonymous Fri 24 May 2019 17:55:55 No.10669332 Report

Quoted By:

How would ancient warfare change if humans had their physical capabilities doubled?

Anonymous

Anonymous Fri 24 May 2019 18:10:14 No.10669362 Report

Quoted By:

>>10669291
Yes. A meteor will hit us.

Anonymous

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Anonymous Fri 24 May 2019 18:19:16 No.10669390 Report

Quoted By:

>>10666075
Gee, those are some work knees if I ever seen ones! Happy gargling!

Anonymous

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Anonymous Fri 24 May 2019 18:25:25 No.10669401 Report

Quoted By: >>10669530 >>10675613

>>10666075
if crocodiles are supposedly dinosaurs and dinosaurs were supposedly feathered, how come crocodiles dont have feathers?

Anonymous

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Anonymous Fri 24 May 2019 18:54:32 No.10669488 Report

Quoted By: >>10669506 >>10671923

>>10666075
What would happen if you fire a bazooka in space?

a - would the fuel even combust?
b - if it would, will the rocket travel forward?
c - if you travel backwards and the rocket forwards in equal measure, does that mean the rocket flies half as fast as it would on earth?

Also, I'm naive - is she a sex worker or just had a fairly disappointing sexual encounter and went back home?

Anonymous

Anonymous Fri 24 May 2019 18:59:35 No.10669506 Report

Quoted By: >>10669525

>>10669488
a) yes
b) yes
c) no

unknown.

Anonymous

Anonymous Fri 24 May 2019 19:09:19 No.10669525 Report

Quoted By: >>10669533

>>10669506
>c) no
why no?

Anonymous

Anonymous Fri 24 May 2019 19:13:47 No.10669530 Report

Quoted By:

>>10669401
Crocodiles are not dinosaurs.

Anonymous

Anonymous Fri 24 May 2019 19:14:41 No.10669533 Report

Quoted By: >>10669537

>>10669525
Newtons 3rd law. Just because there's a force backwards doesn't change the amount of forward force. He doesn't move on the ground because it's pushing against him and the entire earth.

Anonymous

Anonymous Fri 24 May 2019 19:16:27 No.10669537 Report

Quoted By: >>10669542 >>10670100

>>10669533
Does that mean when I fire a bazooka I move the earth backwards?

Anonymous

Anonymous Fri 24 May 2019 19:17:58 No.10669542 Report

Quoted By: >>10669552

>>10669537
Yes. By a very very very small amount.

Anonymous

Anonymous Fri 24 May 2019 19:20:56 No.10669552 Report

Quoted By:

>>10669542
I'M PUSHING THE EARTH! I'M MOVING THE WHOLE PLANET, FUCK YEAH!

Ah yeah thanks.

Anonymous

Anonymous Fri 24 May 2019 19:35:50 No.10669590 Report

Quoted By:

>>10668888
Consciousness reduces to physical processes.

Anonymous

Anonymous Fri 24 May 2019 19:39:20 No.10669598 Report

Quoted By:

Got an A, A-, B+, B, and B this semester.
I’m now at a 3.4
Should I off myself? My GPA reset and these are my first classes at Uni with 3 more semesters to go until i graduate. How fucked am I from Cum Laude?

Anonymous

Anonymous Fri 24 May 2019 21:22:40 No.10669873 Report

Quoted By: >>10670099

>>10666075
Question:
How chemists come up with those weird names for new complex chemicals?

Anonymous

Anonymous Fri 24 May 2019 23:27:08 No.10670099 Report

Quoted By: >>10671228

>>10669873
Can you give an example? If it's an organic compound it might just be the IUPAC.

Anonymous

Anonymous Fri 24 May 2019 23:27:14 No.10670100 Report

Quoted By:

>>10669537
A bazooka isn't a cannon; it doesn't have recoil. The equal and opposite force is exerted upon the exhaust, not the launcher. On earth, the exhaust will transfer its momentum to the atmosphere which will transfer it to the earth. This wouldn't apply if fired on a planet without an atmosphere.

If you fire a cannon on earth (or any other planet, atmosphere or not), the recoil acts upon the planet.

Anonymous

Anonymous Sat 25 May 2019 02:46:29 No.10670553 Report

Quoted By: >>10671923

What are considered 'competitive' grades for someone who wants to get into a masters/phd programme in Europe?

Anonymous

Anonymous Sat 25 May 2019 03:07:49 No.10670609 Report

Quoted By: >>10671372

Is {f(x) | Exist x element of set A, ( f(x) ) }
a valid formula that means the same as
{y | Exist x element of set A, ( y = f(x) ) }

Anonymous

View Same Google iqdb SauceNAO 1558581206674.png, 161KiB, 2480x1754

Anonymous Sat 25 May 2019 10:43:20 No.10671228 Report

Quoted By: >>10671354 >>10671410 >>10673760

>>10670099
How chemists come up with those weird names for example of these antidepressants.

Anonymous

Anonymous Sat 25 May 2019 10:47:03 No.10671231 Report

Quoted By:

Where can I find book that goes in detail about radiation safety?
Not about protection gear or maximum dosage but calculating absorbed,equivalent dose,converting between units ect.
I need something like a practical manual but wikipedia articles are not enough.

Anonymous

Anonymous Sat 25 May 2019 12:16:55 No.10671354 Report

Quoted By:

>>10671228

They are named according to the International Nonproprietary Names rules that are overseen by the World Health Organisation.

It is usually a combination of a unique name based on the chemical structure combined with a name stem.

The name stem is the word ending that helps you identify the class of drug. For example, drugs ending with -azepam are benzodiazepines. So in that class you will have diazepam, lorazepam, nitrazepam, etc which are all benzos.

The unique prefix is usually chosen to reflect the chemical structure of the molecule. For example, nitrazepam has a nitrate group attached to a benzodiazepine scaffold.

Drugs will often have another name assigned to them which is the brand name. For example, diazepam is also called Valium, which is the original brand name.

Anonymous

Anonymous Sat 25 May 2019 12:25:46 No.10671372 Report

Quoted By:

>>10670609
that's butchered English

Anonymous

Anonymous Sat 25 May 2019 12:40:24 No.10671395 Report

Quoted By: >>10671438

For a continuous function, if the image of an open set is always open, what can we say about the function or the topology? Does it just mean the function is homeomorphic? I feel as though there are several things you can say based on memory.

Anonymous

View Same Google iqdb SauceNAO bogerface.png, 32KiB, 514x352

Anonymous Sat 25 May 2019 12:47:32 No.10671410 Report

Quoted By:

>>10671228
>SSRIs
>mild side effects

Anonymous

Anonymous Sat 25 May 2019 13:00:40 No.10671438 Report

Quoted By:

>>10671395
https://en.wikipedia.org/wiki/Open_and_closed_maps

Anonymous

Anonymous Sat 25 May 2019 13:10:44 No.10671454 Report

Quoted By: >>10672538

>>10667499
God this is such a good post. On a board full of smart people, you manage to sound wise.

Anonymous

View Same Google iqdb SauceNAO The-Observer-Effect.png, 19KiB, 490x307

Anonymous Sat 25 May 2019 14:21:47 No.10671552 Report

Quoted By: >>10671563 >>10671846

Brainlet here, I'm under the impression that scientists believe observation effects outcome when it comes to quantum phenomena.

>What are the limits to what counts as "observation"?
>How does a universe of no observers (thus no collapse) look compared to a universe of observers?
>Was there no such thing as wave collapse observation before science?

Anonymous

View Same Google iqdb SauceNAO AF62051C-97E3-47E8-A121-68254AA6 (...).jpg, 28KiB, 739x415

Anonymous Sat 25 May 2019 14:26:45 No.10671563 Report

Quoted By:

>>10671552

following this:

waves of probability can be seen affecting each other in the double slit experiment, despite the fact that only one of the two outcomes actually happened. how can something be affected by something that never happened? how can we observe real life results/affects of something that never happened?

i know im probably understanding the experiment completely wrong.

Anonymous

Anonymous Sat 25 May 2019 15:00:03 No.10671600 Report

Quoted By:

>>10666448
This is burnout. Chop everything into smaller pieces. Everything you possibly can. Chances are that you are trying to expand your knowledge base across too large an area in too small a time period.

Anki and flashcards help. Remember to give yourself deep reading/assimilation time Before doing rote memory exercises -- the latter are almost useless without the former.

Anonymous

Anonymous Sat 25 May 2019 15:05:15 No.10671606 Report

Quoted By:

>>10666075
Is there some simple way to backpedal the corporate capture of American science? Appropriate biotech is literally being suppressed economically and the trend continues elsewhere as well. Capturing market shares of the industry with superior output is made painfully unlikely by chemical process/price-fixing on corporate and industry majority holder levels.

Anonymous

Anonymous Sat 25 May 2019 15:08:46 No.10671610 Report

Quoted By:

spongy mesophyll

Anonymous

Anonymous Sat 25 May 2019 15:36:14 No.10671645 Report

Quoted By: >>10671680 >>10671718 >>10671923

How can I find how the realtive % a grade has?
Module split into 30% for cw, 70% for exam
Cw split into 15% each
Got 70% for cw1 and 51% for cw2

Given all this, what current overall % have I got for the module?

No-one has been able to answer this.

Anonymous

Anonymous Sat 25 May 2019 15:55:29 No.10671669 Report

Quoted By: >>10671702

Is math related to science?

Anonymous

View Same Google iqdb SauceNAO Screenshot_2.jpg, 6KiB, 262x31

Anonymous Sat 25 May 2019 15:58:10 No.10671672 Report

Quoted By:

>>10666175
i don't know what you're trying to say but yes, R is transitive in your case

Anonymous

Anonymous Sat 25 May 2019 16:00:16 No.10671680 Report

Quoted By: >>10671696

>>10671645
60.5%

Anonymous

Anonymous Sat 25 May 2019 16:05:07 No.10671696 Report

Quoted By:

>>10671680
What is that in relation to the entire module's 100% though?

Anonymous

Anonymous Sat 25 May 2019 16:08:34 No.10671701 Report

Quoted By: >>10671750

>>10666075
>Feel free to ask your stupid questions here.
Oh all right then. Why do /sci/ brainlets not believe in free energy devices?

Anonymous

Anonymous Sat 25 May 2019 16:08:48 No.10671702 Report

Quoted By:

>>10671669
This is a very deep question so it probably doesn't belong in this thread

Anonymous

Anonymous Sat 25 May 2019 16:15:41 No.10671718 Report

Quoted By:

>>10671645
18.15%

Anonymous

Anonymous Sat 25 May 2019 16:28:48 No.10671750 Report

Quoted By: >>10673855

>>10671701
Free energy means a perpetual motion machine is possible which is provably impossible by the Laws of Thermodynamics.

Anonymous

Anonymous Sat 25 May 2019 17:01:05 No.10671828 Report

Quoted By:

>>10666292
Dress to impress, suit and tie and all that crap. After the (successful) interview, ask about their dresscode. But for your first impression, you want to look like you give a shit.

Anonymous

Anonymous Sat 25 May 2019 17:05:17 No.10671843 Report

Quoted By: >>10671847 >>10671905 >>10672147

>>10666075
Hi everyone, not exactly a "stupid" question here, but I've just left a unique thread titled "Parapsychological Experiences" in the catalogue, which detail my personal experiences with what may correspond to "extrasensory perception". I can see phenomena around me which match the descriptions of auras and related types of visuals, and I am very unsure of how to navigate it from here. I want to understand it scientifically, instead of merely "spiritually", whereby I not only help confirm that what I perceive is an externally-embedded reality (and not a mental one) but to also unravel its exact nature. I wish I could show those of your reading this what exactly my visual field looks like at this moment - you would be shocked, as I was before I became used to it. I won't advertise my thread further, please visit it, read it, and leave me your feedback there if you have the time and inclination. Parapsychology isn't a popular topic here in my reckoning (I don't visit /sci/ or 4chan much), but it's still a very interesting field and one that I believe holds a lot of potential for itself. Regardless, you have nothing to lose (besides time) in reading of my experiences, and you may actually be intrigued by what you read. I'd appreciate the attention a lot, even if you don't provide advice along with it. Thanks in advance.

Here is my thread:
>>10671739

Anonymous

Anonymous Sat 25 May 2019 17:06:24 No.10671846 Report

Quoted By: >>10671930

>>10671552
The observation is in this case knowledge where the particle goes.
In order to observe it interacts with a series of things.
I am strong believer that shit somewhere down the chain is fucking with the experiment giving us these weird results that people take for granted.
Most likely energy is bleeding out in some way during these observation making the photons pile up in neat chunks.

Anonymous

Anonymous Sat 25 May 2019 17:06:29 No.10671847 Report

Quoted By:

>>10671843
schizo pls leave

Anonymous

Anonymous Sat 25 May 2019 17:26:26 No.10671905 Report

Quoted By: >>10672147

>>10671843
Seems very intriguing anon, I'll check it out in a moment. I believe some "psychic" abilities or whatever they're called might have reality to them.

Anonymous

Anonymous Sat 25 May 2019 17:32:01 No.10671923 Report

Quoted By: >>10672594

>>10667507
honestly matlab (and to a lesser extent java) should at most be a compatibility layer between you and people who only know matlab. all things together matlab a dogshit language with dogshit buggy libraries. it sells itself (literally because you have to buy/rent it) as easy to use, but really if you try to build anything non-trivial the language works against you every step of the way. python and C/C++ are currently all that you really need to know

>>10669488
a bazooka is recoil-less, so your momentum wouldn't change upon firing it, because the rocket is only pushing against the expanding gas it ejects, not the person/tube firing it

>>10670553
I don't know about Europe, but in the states you need good grades, but not outstanding. The key to getting into PhD programs is to find a person you want to study under, familiarize yourself with their work, and then travel to meet them and talk about what interests you share. Doing this drastically improves your chances to get into where you want to go (although no guarantee)

>>10671645
weighted average. multiply all of your grades by their respective weights, and sum them up to get your grade.

0.15 * (70.0) + 0.15 * (51.0) + 0.7 * (x) = y

since i don't know your exam score x, i can't tell you what your current grade is y

Anonymous

Anonymous Sat 25 May 2019 17:34:25 No.10671930 Report

Quoted By: >>10671992

>>10671846
>>10671846
>I am strong believer that shit somewhere down the chain is fucking with the experiment giving us these weird results that people take for granted.
Thanks for the response, this is my belief as well but I'm trying to understand how the scientific community thinks in regards to this topic. It seems really fucking illogical that the conclusion from these experiments is that probability drives the universe when it's more likely that we just don't have precise enough tools to see what exactly we're doing (for example if subatomic are the next smallest step in the system, I believe they would be affected by observation while remaining immeasurable otherwise). But again, I'm just a brainlet, so if someone ITT could simply explain why quantum theory perserveres over something like pilot wave theory I think that would benefit the conversation.

Anonymous

View Same Google iqdb SauceNAO 1557700473138.png, 277KiB, 480x447

Anonymous Sat 25 May 2019 17:40:29 No.10671954 Report

Quoted By: >>10671974

>>10666346
I can't wear a button up without wearing a tie. It freaks me out. Printed shirts are terrible as well, at least for work. I don't wear a suit but I just can't wear a button up with the top button open. A tie can make a simple outfit look elegant and professional.

Anonymous

Anonymous Sat 25 May 2019 17:47:43 No.10671974 Report

Quoted By: >>10677753

>>10671954
Why should I care about looking elegant and professional? Just so that I can make enough to wear whatever I want? I can do that anyway. You sound like one of those guys that puts traditional beliefs on a pedestal when they're outdated at this point.

Anonymous

Anonymous Sat 25 May 2019 17:54:18 No.10671992 Report

Quoted By: >>10672061 >>10672071

>>10671930
standard quantum theory perseveres because it gives predictions that agree very well with reality with the least amount of assumptions.

pilot wave theory assumes quantum theory incompletely models physical phenomenon giving rise to the statistical interpretation. pilot wave theory assumes that there are "hidden variables" which are not taken into account in QM but that are needed to fully determine the behavior of a system, yet pilot wave theory gives no insight into what those variables are.

probably the best way to approach QM is not to try to attach one physical interpretation or another to the math, but just utilize the results of the math. in other words, don't subscribe to the Copenhagen principle of things existing in a superposition of states, just say that when I turn the crank on my math it makes predictions that align with reality.

Anonymous

Anonymous Sat 25 May 2019 18:15:58 No.10672049 Report

Quoted By: >>10672059

>>10666075
Hello frens i have a problem for you with added personal spice.

I fucked my gf without a condom.

Her period is late by a week.

We did 2 pregnancy tests, both pregnancy tests claim to be 99% accurate as most modern pregnancy tests.

The first test was done 4 days after her period was supposed to come, the second 6 days, both early in the morning.

Both tests came out negative.

Whats the actual probability of her being pregnant? Its obviously a geometric distribution variable but I dont know how to compute it given that reliability of actually knowing if you had a success or failure isn't 100%

Anonymous

Anonymous Sat 25 May 2019 18:16:20 No.10672050 Report

Quoted By: >>10672538

>>10667499
I find hiking does an excellent job boosting my mindfulness. It's the perfect combination of quiet observation and exercise.

Anonymous

Anonymous Sat 25 May 2019 18:22:30 No.10672059 Report

Quoted By:

>>10672049
Just assume that she's pregnant now and treat her nicely. Continue using condoms/birth control. She'll remember how you've behaved no matter how things turn out as far as the actual pregnancy goes...

Anonymous

Anonymous Sat 25 May 2019 18:22:41 No.10672061 Report

Quoted By:

>>10671992
Based response, that's a good answer and makes sense. So basically if I'm understanding right pilot wave theory just doesn't science hard enough. and this last line "probably the best way to approach QM..." makes the most sense for me. QM has always been easy for me to understand the how but not the why. I'm just personally not seeing copenhagen interpretation as the endgame of this particular rabbit hole.

Anonymous

Anonymous Sat 25 May 2019 18:28:47 No.10672071 Report

Quoted By: >>10672229

>>10671992
Any "hidden variable" theory has been proved that it can never explain QM because of Bell's theorem and the many experimental confirmations of it. Pilot wave theory is simply wrong and provably so.

The Copenhagen principles gives the correct answer *every single time* but it's interpretation leaves many people unhappy. Even the original authors acknowledged this but essentially said, "It works, who cares why, lets move on".

Anonymous

Anonymous Sat 25 May 2019 19:05:31 No.10672147 Report

Quoted By: >>10672657

>>10671843
>claims to have psychic abilities
>also an inordinate need for attention or being super special

everytime

>>10671905
>believes absolutely anything they read of 4chan

Anonymous

Anonymous Sat 25 May 2019 19:32:43 No.10672229 Report

Quoted By: >>10672742

>>10672071
This is actually completely incorrect. Bell's theorem invalidates LOCAL hidden variable theories, but pilot wave theory was explicitly nonlocal from the beginning.
Note that I don't personally subscribe to pilot wave, just saying Bell's theorem doesn't apply to it.

Anonymous

Anonymous Sat 25 May 2019 19:37:32 No.10672244 Report

Quoted By:

>>10666075
What are the pros and cons to learning arithmetic before geometry and vice versa?

Anonymous

Anonymous Sat 25 May 2019 20:37:34 No.10672377 Report

Quoted By:

>>10666075
i want to fuck that girl so badly

Anonymous

Anonymous Sat 25 May 2019 21:34:02 No.10672538 Report

Quoted By: >>10672573

>>10671454
Thank you anon, that means a lot to me

>>10672050
I agree fully with you. When I was deep in my studies, sometimes a hike was the only thing to ease my mind and also keep me healthy at the same time

Anonymous

Anonymous Sat 25 May 2019 21:42:59 No.10672573 Report

Quoted By: >>10672630

>>10672538
I'm surprised mentioning mindfulness didn't draw in a slavering crowd of haters.

Anonymous

Anonymous Sat 25 May 2019 21:52:21 No.10672594 Report

Quoted By:

>>10671923
I agree with you here (op of >>10667507) MATLAB does suck for many reasons and compared to other languages its libraries and documentation are actually garbage (and the data structures are pretty rigid). But OP said they were studying applied physics, which is closely related to engineering, and chances are high that they will run into it throughout their professional career. So all things considered, for a summer break it would be easy to pick up and would put them in a good spot considering their educational background to familiarize themselves with it. I would argue with you about really only needing to know C/C++ and Python, because that is heavily career based, but there's really no need because you're essentially correct. Hence my mild suggestion of picking up MATLAB to begin with, kek

Anonymous

Anonymous Sat 25 May 2019 22:05:42 No.10672630 Report

Quoted By: >>10672646 >>10676065

>>10672573
There will always be people out there who blatantly disagree with an idea or practice. But to each their own. I'm just glad to help out a fellow anon who is going through something I've experienced as well, and maybe some others along the way too

Anonymous

View Same Google iqdb SauceNAO 1557634450407.jpg, 107KiB, 1024x1024

Anonymous Sat 25 May 2019 22:09:09 No.10672646 Report

Quoted By:

>>10672630
Same, have a peaceful day anon

Anonymous

Anonymous Sat 25 May 2019 22:14:08 No.10672657 Report

Quoted By:

>>10672147
Where in any of my comments did I display either a personal confirmation of my experiences as being "psychic" in nature, or a "need to feel special"? If you read my posts, I emphasize throughout both of my posts that they "may" be such, or may not be, but merely that they "correspond" to the description of those phenomena. Seems like very unfair accusations you've levied at me, to be honest.

Anonymous

Anonymous Sat 25 May 2019 22:49:31 No.10672742 Report

Quoted By:

>>10672229
How can you have a non-local hidden variable theory of quantum mechanics?

Anonymous

Anonymous Sat 25 May 2019 23:45:24 No.10672879 Report

Quoted By: >>10673273 >>10673277

>>10666075
I read on /sci/ that sunscreen causes cancer. I looked it up, and some chemicals that are used in sunscreen but also in other products. Can you give me your opinion on it? Does sunscreen cause cancer, and if it's just about something that they add to it, what actually would it be?

Anonymous

Anonymous Sat 25 May 2019 23:46:46 No.10672883 Report

Quoted By:

>>10666463
Are you from India or Turkey?

Anonymous

Anonymous Sat 25 May 2019 23:52:50 No.10672893 Report

Quoted By:

>>10667152
Happened to me as well. It helped learning a new language and spending time in a foreign country in an environment that is not as academic. But my first language is German, which I assume is just more autistic by default.

Anonymous

Anonymous Sun 26 May 2019 00:27:57 No.10672969 Report

Quoted By: >>10673102

Need some help in a game I’m playing.
Scrolling, or using a scroll on an equip, has a success rate of 30%. This item costs $45.
Successfully scrolling 5 times in a row gives you $4000.
What are the chances of you successfully using the item 5 times in a row?
Would it be a smart approach in doing this?

Anonymous

Anonymous Sun 26 May 2019 00:31:42 No.10672975 Report

Quoted By: >>10673030 >>10676068

how the fuck does $2x(x+1)+3(x+1)=0$
turn into $(x+1)(2x+3)=0$ ?????????
goddamit please explain this
(in relation to trinomial factoring btw)
(and i'm not 14 i'm trying to relearn this stupid shit to fix my scores)

Anonymous

Anonymous Sun 26 May 2019 00:55:41 No.10673030 Report

Quoted By: >>10673047

>>10672975
Because $ab + cb = (a+c)b$

Anonymous

Anonymous Sun 26 May 2019 01:00:08 No.10673047 Report

Quoted By:

>>10673030
arigato senpai

Anonymous

Anonymous Sun 26 May 2019 01:24:40 No.10673086 Report

Quoted By: >>10673353

Can anyone recommend me a good intro-level textbook on category theory? I glanced at the sticky but nothing looked relevant.

Anonymous

Anonymous Sun 26 May 2019 01:30:35 No.10673102 Report

Quoted By:

>>10672969
> What are the chances of you successfully using the item 5 times in a row?
0.3^5 = 0.00243 ~= 1/411.5
> Would it be a smart approach in doing this?
Not even remotely. On average, you'd spend 45*(1+0.3+0.3^2+0.3^3+0.3^4)/(0.3^5) = $26390.70 for every $4000 won.

Anonymous

Anonymous Sun 26 May 2019 02:45:12 No.10673273 Report

Quoted By: >>10673277

>>10672879
The active ingredients of most sunscreens (oxybenxone, avobenzone, titanium dioxide, etc.) are harmful if ingested, but at most minimally harmful when topically applied. Compared with the devastating health risk of extended UV exposure, there's no reasonable argument that sunscreen isn't by far worth it. Aside from saving you from skin cancer, it'll also keep you looking younger, since one of the biggest causes of skin aging is UV exposure.

Anonymous

Anonymous Sun 26 May 2019 02:49:19 No.10673277 Report

Quoted By:

>>10673273
>>10672879
no link to cancer but the FDA just found that some of the chemicals absorb into the bloodstream

Anonymous

Anonymous Sun 26 May 2019 03:46:22 No.10673353 Report

Quoted By:

>>10673086
Category theory in context

Anonymous

Anonymous Sun 26 May 2019 08:49:28 No.10673746 Report

Quoted By:

>>10668888
Great digits, very nice.

The mind/body problem is "unsolved" in philosophy, you can go read up on Monism, Dualism, Functionalism as attempts for explanation on how the brain and consciousness relate.
For me, it's pure determinism. I could never have acted differently than reply to your post using these exact words.

Have a nice day.

Anonymous

Anonymous Sun 26 May 2019 09:01:53 No.10673760 Report

Quoted By: >>10677102

I have a stupid question of my own, or two:

1) Can you recommend me a manual of the neuronal workings of the brain? I want to slightly increase my current understanding (which is: 'none') of how neurotransmitters, specifically probably dopamine and serotonine, and the synaptic transmissions work.

Also, I read in "anxiety and depression, a handbook" a figure that 90% of dopamine in the body is found in the gastrointestinal tract; what's the relationship between digestion (or nutrition) and the psyche?

2) Certain mood disorders come in cycles, and another book put up the hypothesis that it might correlate with certain "biological cycles of the body", with the day/night or summer/winter examples.
Where could I read up on more than the circadian rhythm? Are there cycles with a duration on the order of months and years, rather than hours? I could only think of menstruation, which doesn't apply to anon I guess.

Thank you.

>>10671228

Anonymous

Anonymous Sun 26 May 2019 10:11:44 No.10673855 Report

Quoted By:

>>10671750
says the NWO bootlickers.

Anonymous

Anonymous Sun 26 May 2019 11:44:52 No.10673976 Report

Quoted By: >>10673985

>>10666075
I'm gonna be a pre-med majoring in physics(cause i like physics too) am i most likely gonna be fucked?

Anonymous

Anonymous Sun 26 May 2019 11:50:14 No.10673985 Report

Quoted By:

>>10673976
yes, Sanders will implement socialist wage slavery on the healthcare system

Anonymous

View Same Google iqdb SauceNAO Activated Carbon (Black), Ion-ex (...).jpg, 114KiB, 1280x720

Anonymous Sun 26 May 2019 12:25:12 No.10674022 Report

Quoted By: >>10674030 >>10674766

Does anyone know what the, " Ion-exchange Resin (White)," is in Brita water filters? The other two are pretty obvious, but this one is just "resin" which is like saying, "vehicle" when answering "what car do you drive?"

Aus Shitposter 90

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Aus Shitposter 90 Sun 26 May 2019 12:26:50 No.10674025 Report

Quoted By:

>>10666075
How do I stop Shid and cummed when I fard?

Anonymous

Anonymous Sun 26 May 2019 12:31:28 No.10674030 Report

Quoted By: >>10674033

>>10674022
>The other two are pretty obvious
What are the yellow ones made of?

Anonymous

Anonymous Sun 26 May 2019 12:34:03 No.10674033 Report

Quoted By:

>>10674030
silver nitrate

Anonymous

View Same Google iqdb SauceNAO neuralNet.png, 28KiB, 716x296

Anonymous Sun 26 May 2019 12:57:04 No.10674073 Report

Quoted By: >>10674785

What's the point in a bias for neural networks?
Pic related. It's an AND gate where a and b are either 0 or 1. The bias is never used. What's the point in it?

Anonymous

Anonymous Sun 26 May 2019 17:22:04 No.10674658 Report

Quoted By: >>10679963

>>10666339
all else is never equal, and basing a decision like that on someone wearing a suit or not is idiotic IMO.

Anonymous

Anonymous Sun 26 May 2019 17:37:24 No.10674698 Report

Quoted By:

Looking at the Gauss-Seidel method, is there a method for picking the initial values, or is it quite literally just a guess? In which case would picking inital values of 0 everytime work?

Anonymous

Anonymous Sun 26 May 2019 18:04:51 No.10674751 Report

Quoted By:

>>10666084
But if she doesn't have the marks to show off, how will she ever get back at daddy?

Anonymous

Anonymous Sun 26 May 2019 18:09:28 No.10674766 Report

Quoted By: >>10674932

>>10674022
Could be anything that chelates, a la EDTA

Anonymous

Anonymous Sun 26 May 2019 18:13:17 No.10674785 Report

Quoted By:

>>10674073
Because it allows you to have output values that would be impossible without it.

Anonymous

Anonymous Sun 26 May 2019 18:34:53 No.10674842 Report

Quoted By:

I'm going to university next year for Maths. Do I need to buy a laptop for the classes? I'm basing this purely on tv/films.

Anonymous

Anonymous Sun 26 May 2019 18:38:21 No.10674853 Report

Quoted By: >>10674883 >>10675591

Do all prime numbers greater than 10 divided by other prime numbers greater than 10, produce periodic float numbers?

Anonymous

Anonymous Sun 26 May 2019 18:48:59 No.10674883 Report

Quoted By: >>10674908 >>10674925

>>10674853
Yeah, you can prove this easily. Suppose $p, q$ are relatively prime and that
$\frac{p}{q} = \sum_{k=0}^n a_k 10^{-k}$
In other words, it has a finite expansion base 10. Then obviously $\frac{10^np}{q}$ would be an integer, which implies that $q$ divides 10, but $q > 10$ so this is a contradiction. This proves that the fraction has an infinite expansion, which we know will be periodic as it is a rational number.

Anonymous

Anonymous Sun 26 May 2019 18:57:23 No.10674908 Report

Quoted By: >>10674914

>>10674883
>implies that q divides 10
No. Take q = 2^n for example

Anonymous

Anonymous Sun 26 May 2019 18:59:41 No.10674914 Report

Quoted By: >>10674924

>>10674908
You said q was a prime number greater than 10.

Anonymous

Anonymous Sun 26 May 2019 19:03:09 No.10674918 Report

Quoted By: >>10674926

>>1067484I would say you don't need a laptop but it certainly makes things more convenient. You should at least have a computer if not though

Anonymous

Anonymous Sun 26 May 2019 19:04:30 No.10674924 Report

Quoted By:

>>10674914
My bad, I'm not op and I didn't read his post properly

Anonymous

Anonymous Sun 26 May 2019 19:05:14 No.10674925 Report

Quoted By:

>>10674883
Why does a contradiction in a finite expansion prove it's infinite when if you started with an infinite expansion none of that argument follows?

Anonymous

Anonymous Sun 26 May 2019 19:06:14 No.10674926 Report

Quoted By:

>>10674918
Yeah I have my computer at home (I live near the university).

Anonymous

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Anonymous Sun 26 May 2019 19:08:54 No.10674932 Report

Quoted By: >>10678018

>>10674766
>EDTA
>Oral exposures have been noted to cause reproductive and developmental effects

Anonymous

Anonymous Sun 26 May 2019 21:04:21 No.10675171 Report

Quoted By: >>10675469

Just want to thank all the faggots in these threads that's help people out. I've used these threads on and off for 2 years now, with my knowledge and grades benefiting tremendously.

Anonymous

Anonymous Sun 26 May 2019 21:38:17 No.10675231 Report

Quoted By: >>10675572

What's the best path for building robots? b.sc in mechanical engineering then master's in mechatronics? Or EE instead?

Anonymous

View Same Google iqdb SauceNAO FB_IMG_1525965299191.jpg, 45KiB, 720x960

Anonymous Sun 26 May 2019 23:29:13 No.10675468 Report

Quoted By: >>10675479 >>10675575 >>10676679 >>10676769

tldr: Anyone from the Ex-Yu in here? I need proper translation of the first problem so I can google that area and start studying.

If nobody here speaks Serbian, I'd be grateful if someone more knowledgable than me to tell me what I'm looking at here.
Basically, the are is complex analysis, that much I know. So I can try to translate the first problem literally, and if anyone recognizes what it is (just english mathematical terms of what is asked of a student is enough, I'll google the rest).
So, my attempt: "Using the function f(z), map the area D".
I have no idea what this is or what it means, and it's pretty ungoogleable the way I translated it.

Anonymous

Anonymous Sun 26 May 2019 23:30:20 No.10675469 Report

Quoted By:

>>10675171
>Just want to thank all the faggots in these threads that's help people out.
Why the homophobia?

Anonymous

Anonymous Sun 26 May 2019 23:36:05 No.10675479 Report

Quoted By:

>>10675468
I don't know why I can't type properly..
I'd be grateful if someone smarter would tell me*
The area is complex analysis*
asked from a student*

Anonymous

Anonymous Mon 27 May 2019 00:13:45 No.10675558 Report

Quoted By: >>10675614

Is there any difference between an absolutely deterministic world where subjective experience is possible and one where it is not?

Anonymous

Anonymous Mon 27 May 2019 00:23:15 No.10675572 Report

Quoted By: >>10675578

>>10675231
Which part of the robot building are you interested in? Practical robots aren't designed and built by one person. Realistically, you need EE, Mech.E, control theory, CS, and AI. You can get good at one of them or be mediocre at all of them.

Anonymous

Anonymous Mon 27 May 2019 00:26:27 No.10675575 Report

Quoted By: >>10675580 >>10675586

>>10675468
this all looks like residue theorem stuff, Z transform, Laurent series, that kind of thing

Anonymous

Anonymous Mon 27 May 2019 00:27:53 No.10675578 Report

Quoted By:

>>10675572
What's the most important part?

Anonymous

Anonymous Mon 27 May 2019 00:28:55 No.10675580 Report

Quoted By: >>10675586

>>10675575
It's all complex analysis. Second is Laurent series, third is contour integral, but I don't know what the first one is called, aaaand it's subsequently the only one I don't know how to do yet

Anonymous

Anonymous Mon 27 May 2019 00:31:25 No.10675586 Report

Quoted By:

>>10675575
>>10675580
Pretty sure it's not residue theorem (I could be horribly wrong here tho), since I think someone mentioned that we won't get a residue problem on this exam, instead he'll save that for the finals.

Anonymous

Anonymous Mon 27 May 2019 00:32:23 No.10675587 Report

Quoted By: >>10675603 >>10675607

What do I use to make entangled photons

And since photons behave as waves, would it be stupid to assume that entangled photons are actually the same photon going through two paths?

Anonymous

Anonymous Mon 27 May 2019 00:34:43 No.10675591 Report

Quoted By:

>>10674853
Any rational number whose denominator contains prime factors other than 2 or 5 has a repeating expansion in base 10. So if p and q are primes, p/q has a repeating decimal expansion if q isn't 2 or 5.

More generally, a rational number has a repeating expansion in any base where the denominator has prime factors which the base lacks (so e.g. 1/10 has a repeating expansion in binary).

Anonymous

Anonymous Mon 27 May 2019 00:41:17 No.10675603 Report

Quoted By: >>10675607

>>10675587
Usually beta barium borate crystals are used. You shine laser light through it. Most photons just pass right through, but some are converted to two entangled half-frequency photons that travel out at an angle to conserve momentum. The process is called Spontaneous Parametric Down-Conversion.

Anonymous

Anonymous Mon 27 May 2019 00:42:48 No.10675607 Report

Quoted By:

>>10675587
>>10675603
And to answer your second question, both entangled photons can be detected individually and travel separately, so they can't be the same photon.

Anonymous

Anonymous Mon 27 May 2019 00:48:33 No.10675613 Report

Quoted By:

>>10669401
1. Crocodilians aren't dinosaurs. They both belong to the clade Archosauria, but they are different groups.
2. Not all dinosaurs had feathers. Some were completely scaly, and some even had a combination of feathers and scales. It is thought that they could switch between them relatively easily.
2. Crocodilians do have the same genes that regulate feather development in birds, which could indicate that their common ancestor may have had feather-like integument.

Anonymous

Anonymous Mon 27 May 2019 00:50:11 No.10675614 Report

Quoted By:

>>10675558
What's your maximum retrocausal iteration count on redefining the determinism function?

Anonymous

Anonymous Mon 27 May 2019 01:36:01 No.10675701 Report

Quoted By: >>10676053

>>10666075
We know there's a huge difference between the robustness of theories in physics and, say, sociology. However, is there any way to measure how robust a given theory is using bibliometric data?

Anonymous

Anonymous Mon 27 May 2019 04:37:58 No.10676033 Report

Quoted By: >>10676064

Please forgive me if I screw up the formating on this. Is this the proper equation for the probability of rolling the exact same number on $\mathrm{m},$ $\mathrm{n}$ sided dice

$\frac{1}{m^n}$

Anonymous

Anonymous Mon 27 May 2019 04:41:24 No.10676043 Report

Quoted By:

>>10666075
Do girls like OP's pic related enjoy being hate fucked?

Anonymous

Anonymous Mon 27 May 2019 04:42:40 No.10676047 Report

Quoted By:

>>10666448
sounds like el depresso, or burnout

Anonymous

Anonymous Mon 27 May 2019 04:44:48 No.10676051 Report

Quoted By:

How hard is it to double major in Neuroscience and Mathematics while minoring in philosophy? Will it leave me enough time to complete undergrad research and get my name on a paper? Will I want to blow my brains out after a few years, before I even get to grad school?

Anonymous

Anonymous Mon 27 May 2019 04:46:21 No.10676053 Report

Quoted By:

>>10675701
What is the average epistemic density of the population over which the bibliometric data is derived?

Anonymous

Anonymous Mon 27 May 2019 04:50:31 No.10676060 Report

Quoted By:

>>10668071
you should do suicides every morning in the uni parking lot

Anonymous

Anonymous Mon 27 May 2019 04:52:57 No.10676064 Report

Quoted By:

>>10676033
There are $n$ possibilities that meet the criteria, and $n^m$ total possibilities. Since each possibility is equally likely, the probability is $\frac{n}{n^m} = n^{1-m}$

Anonymous

Anonymous Mon 27 May 2019 04:54:09 No.10676065 Report

Quoted By:

>>10672630
You're a good person, anon.

Anonymous

Anonymous Mon 27 May 2019 04:56:40 No.10676068 Report

Quoted By:

>>10672975
imagine (x + 1) is some variable, (c).
so, 2x(c) + 3(c) = 0
factor out c:
c(2x + 3) = 0
replace c:
(1 + x)(2x + 3) = 0

Anonymous

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Anonymous Mon 27 May 2019 05:24:38 No.10676106 Report

Quoted By:

so its clear that $X_2$ is just made up of linear combinations of $X_1$ , but i dont see how this makes $H_2$ a solution. for it to be a solution we have that $H_2*x_1 \neq H_2*x_1$ for every $x \in X$ , but doesnt that fact that there are elements of $x_2$ that are representable by at least 2 linear combinations of elements of $X_1$ mean this doesnt hold true? or am i just overthinking it and that fact that everything in $X_2$ is a linear combination of $X_1$ is proof enough

Anonymous

Anonymous Mon 27 May 2019 11:01:01 No.10676679 Report

Quoted By:

>>10675468
Could someone please take a look at this? There's so many mathematicians here I thought this would be answered in 5 seconds. ;_;

Anonymous

Anonymous Mon 27 May 2019 12:30:20 No.10676769 Report

Quoted By: >>10676781

>>10675468
the one on bottom says

>calculate integral .. if c=:|z+1|=3
>solution

Anonymous

Anonymous Mon 27 May 2019 12:37:57 No.10676781 Report

Quoted By: >>10676811 >>10676828

>>10676769
Yeah it's 3 problems and short solutions. Second one is Laurent series, third one is contour integral, I'm only asking about the first one tho. What's the English mathematical term for it? It says something about using a function f(z) to map the area D or smth, I have no idea what's that.

Anonymous

Anonymous Mon 27 May 2019 12:49:50 No.10676794 Report

Quoted By:

>>10666138
incel detected

Anonymous

Anonymous Mon 27 May 2019 12:54:19 No.10676803 Report

Quoted By: >>10677040

>>10666075
brainlet here, just figured out indefinite integrals and derivatives, what the fuck is a differential equation and how to solve one?

Anonymous

Anonymous Mon 27 May 2019 12:59:30 No.10676811 Report

Quoted By: >>10676815

>>10676781
It's asking you to find f(D). At least that's what the solution is doing.

Anonymous

Anonymous Mon 27 May 2019 13:02:14 No.10676815 Report

Quoted By: >>10676819

>>10676811
The fuck's that? Do you know the term so I can google it?

Anonymous

Anonymous Mon 27 May 2019 13:04:04 No.10676819 Report

Quoted By: >>10676824 >>10676833

>>10676815
The image of the domain D under the map f, also called the range of f (restricted to D)

Anonymous

Anonymous Mon 27 May 2019 13:07:35 No.10676824 Report

Quoted By:

>>10676819
Thank you so much!

Anonymous

Anonymous Mon 27 May 2019 13:10:19 No.10676828 Report

Quoted By: >>10676833

>>10676781
it says
>With function f(z) translate area D=(z...)
>solution
>Function can be presented in the following shape
>With this translation we get the following areas D1={z1...}

Anonymous

Anonymous Mon 27 May 2019 13:12:48 No.10676833 Report

Quoted By: >>10676845

>>10676819
>>10676828
https://editorialdinosaurio.files.wordpress.com/2012/03/ahlfors_-_complex_analysis.pdf
Analytic functions as mappings?

Anonymous

Anonymous Mon 27 May 2019 13:21:49 No.10676845 Report

Quoted By: >>10676850

>>10676833
Analytic functions whose derivative is non 0 throughout are called conformal maps. Is that what you're asking? Why did you link Ahlfors' book?

Anonymous

Anonymous Mon 27 May 2019 13:24:34 No.10676850 Report

Quoted By: >>10676857

>>10676845
I meant is that the area, is that the chapter that would teach me to solve the problem in the picture?

Anonymous

Anonymous Mon 27 May 2019 13:27:35 No.10676856 Report

Quoted By:

What are the best sites and/or textbooks to learn thermochemistry and reaction kinetics?
My professor fucking sucks

Anonymous

Anonymous Mon 27 May 2019 13:27:59 No.10676857 Report

Quoted By: >>10676861

>>10676850
It might help but you don't really need anything other than basic algebra (of complex numbers) and set theory to solve this.

Anonymous

Anonymous Mon 27 May 2019 13:29:33 No.10676861 Report

Quoted By: >>10676864

>>10676857
Okay, thank you very much mate! Sorry for keeping you this long!

Anonymous

Anonymous Mon 27 May 2019 13:30:49 No.10676864 Report

Quoted By:

>>10676861
You're welcome. Reading that chapter is probably a good idea anyway

Anonymous

Anonymous Mon 27 May 2019 13:32:12 No.10676866 Report

Quoted By:

>>10666075
Is there an equation for me to scientifically represent my regret?

Anonymous

Anonymous Mon 27 May 2019 15:17:35 No.10677040 Report

Quoted By:

>>10676803
> what the fuck is a differential equation
An equation which involves derivatives. There are two distinct types: ordinary differential equations (ODEs) which involve dependent variables and their derivatives with respect to a single independent variable (often time), and partial differential equations (PDEs) which involve variables and their partial derivatives with respect to each other.

> and how to solve one?
It depends upon the form. Similar to integration, there a bunch of different forms, each with a technique for solving equations of that form. Also similar to integration, many practical problems can only be solved numerically (i.e. you can't find a closed-form expression for the solution, or if there is a closed-form expression, it involves functions whose definition is "integral of ...").

The simplest case is a linear ODE (or system of linear ODEs), whose solutions consist entirely of terms of the form k*t^n*e^at. These can be solved using the Laplace transform and linear algebra.

Anonymous

Anonymous Mon 27 May 2019 15:50:45 No.10677102 Report

Quoted By:

>>10673760
anybody?

Anonymous

Anonymous Mon 27 May 2019 16:28:00 No.10677151 Report

Quoted By: >>10678429

why do people on /sci/ say mental illness is a meme, I've even seen a few people claiming schizophrenics shouldn't be medicated

Anonymous

Anonymous Mon 27 May 2019 16:29:50 No.10677158 Report

Quoted By: >>10677240 >>10677243 >>10677254

How do you find out how many sums FIb(n) has?

e.g. if a computer can calculate 10k sums a second, how long would it take to calculate Fib(42) recursively?

Anonymous

Anonymous Mon 27 May 2019 16:35:12 No.10677173 Report

Quoted By: >>10677194

how do you calculate higher and lower bounds?

Anonymous

Anonymous Mon 27 May 2019 16:42:56 No.10677194 Report

Quoted By:

>>10677173
of what?

Anonymous

Anonymous Mon 27 May 2019 17:05:34 No.10677240 Report

Quoted By: >>10677247

>>10677158
If you use the naive recursive approach, then calculating Fib(n) requires the computer to do Fib(n+1) - 1 sums.

Calculating Fib(42) would require Fib(43) - 1 = 433494437 sums.
That will take 433494437/10000 = 43350 seconds = 12 hours.

Anonymous

Anonymous Mon 27 May 2019 17:07:09 No.10677243 Report

Quoted By:

>>10677158
The number of times depends on the algorithm obviously, if you do a loop it's trivially N times.

But if you do it recursively you have to go to the edge case every time.

If you do it paper you'll see that Fib(N) has Fib(N+1) terms so the running time will be of that order, i.e. significantly bigger.

Try to do a recursion tree as well for small numbers to see it graphically

Anonymous

Anonymous Mon 27 May 2019 17:08:46 No.10677247 Report

Quoted By:

>>10677240
*433494436

Anonymous

Anonymous Mon 27 May 2019 17:13:10 No.10677254 Report

Quoted By:

>>10677158
The base cases are fib(1)=1, fib(2)=1. So the eventual resut is 1+1+1+1+..., so a naive calculation of fib(n) involves fib(n)-1 additions.

Anonymous

Anonymous Mon 27 May 2019 17:37:10 No.10677318 Report

Quoted By: >>10677323 >>10677326 >>10677763

is the ocean a free place to travel?

I can simply take my boat and go around traveling the world?

Anonymous

Anonymous Mon 27 May 2019 17:39:35 No.10677323 Report

Quoted By:

>>10677318
Yeah. But docking fees are a thing, so that's that.

Anonymous

Anonymous Mon 27 May 2019 17:40:19 No.10677326 Report

Quoted By:

>>10677318
no

Anonymous

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Anonymous Mon 27 May 2019 19:51:57 No.10677666 Report

Quoted By: >>10679165 >>10680076 >>10680133

How do I avoid screwing up my first internship (aerospace)?

Anonymous

Anonymous Mon 27 May 2019 20:22:26 No.10677726 Report

Quoted By: >>10677758

a Convex closed curve is inscribed in another convex closed curve, prove that the former curve has always smaller perimeter than the latter one.

Anonymous

Anonymous Mon 27 May 2019 20:26:48 No.10677733 Report

Quoted By:

>>10666292
Dont do the tie shit but don't be too casual. Best way to dress is to feel overdressed and then remove an item untill you feel like you could shoot hoops with your interviewer. Usually this just means no tie and jacket.

Alternatively you could be a reddit cuck and wear a whacky tie.

Anonymous

Anonymous Mon 27 May 2019 20:34:51 No.10677753 Report

Quoted By:

>>10671974
>randomly taking the opportunity to bash traditional social morals and values after someone says a tie improves certain outfits

literally negative testosterone levels.

Anonymous

View Same Google iqdb SauceNAO 61ecEb8x2mL._SL1000_.jpg, 95KiB, 856x1000

Anonymous Mon 27 May 2019 20:38:22 No.10677758 Report

Quoted By: >>10677795

>>10677726 old fart

Anonymous

Anonymous Mon 27 May 2019 20:40:43 No.10677763 Report

Quoted By:

>>10677318
Yeah International waters are free to travel but you can't enter sovereign sea without the appropriate permissions unless you want to go to prison.

Anonymous

View Same Google iqdb SauceNAO Bornoff-Cooling-graphic-1024x799.jpg, 140KiB, 1024x799

Anonymous Mon 27 May 2019 20:50:10 No.10677795 Report

Quoted By:

>>10677758
excuse me

Anonymous

Anonymous Mon 27 May 2019 20:57:37 No.10677812 Report

Quoted By: >>10677976

What makes water slowly evaporate even way below its boiling temperature?

Anonymous

Anonymous Mon 27 May 2019 21:43:14 No.10677929 Report

Quoted By:

>>10668888
I imagine the brain like an immense echo. chamber.
The vibrations caused by your senses reverberate and contort each other. The ideas that come out of your brain are caused by billions of inputs smashed together which creates something that seems to be unnatural but it really is just a complicated mix of things that already exist.

Anonymous

Anonymous Mon 27 May 2019 21:46:07 No.10677939 Report

Quoted By:

How do I get into a good Comp Sci Masters with an Electrical Engineering undergrad (math minor)? My gpa was bad (just under 3.0) and none of my professors knew me that well, although I'm sure I could get a couple letters. On the plus side, I'm confident I can get 98-99th percentile on the GRE and I have a handful of third-author publications from an internship at a research lab, and my boss there absolutely loved me and would give a glowing recommendation. Do I stand a chance? Other than putting together a portfolio of personal projects, what do I do to improve my chances over the next year or two?

Follow up, what do I need to study to make sure I'm not thoroughly behind when I start taking classes?

Anonymous

Anonymous Mon 27 May 2019 22:03:15 No.10677976 Report

Quoted By:

>>10677812
For your own study: maxwell boltzman distribution curve

Tldr: at boiling point all molecules have the kinetic energy to liberate intermolecular bonds, below that there is still a probable quantity of molecules with enough energy to liberate.

Anonymous

Anonymous Mon 27 May 2019 22:34:21 No.10678018 Report

Quoted By:

>>10674932
>muh scary chemikul!!
EDTA strips metal ions from solution of course large amounts are going to fuck shit up. In moderation it's fine. Don't be a faggot.

Anonymous

Anonymous Tue 28 May 2019 02:23:22 No.10678429 Report

Quoted By:

>>10677151
There are no methods of measurement.

Anonymous

Anonymous Tue 28 May 2019 02:34:07 No.10678453 Report

Quoted By: >>10678456 >>10678993

>>10666075

Why is the Ampere the fundamental unit instead of the Coulomb? Isn't the Coulomb the more concrete, less "abstract" thing?

Current "feels" like the more concrete, fundamental thing.

Anonymous

Anonymous Tue 28 May 2019 02:35:09 No.10678456 Report

Quoted By:

>>10678453

*COULOMB "feels" like the more concrete, fundamental thing.

Anonymous

Anonymous Tue 28 May 2019 04:06:46 No.10678739 Report

Quoted By: >>10678744 >>10678770 >>10678903

What is the identity element of the log() operation?

Anonymous

Anonymous Tue 28 May 2019 04:08:08 No.10678744 Report

Quoted By:

>>10678739
log(10) or ln(e) depending on your base

Anonymous

Anonymous Tue 28 May 2019 04:22:34 No.10678770 Report

Quoted By:

>>10678739
do you mean
what x satisfies log(x) = x

Anonymous

Anonymous Tue 28 May 2019 05:33:07 No.10678903 Report

Quoted By:

>>10678739
Only binary operations have identity elements. For a binary operator *, a is a left identity if a*x=x for all x, a right identity if x*a=x for all x, and a two-sided identity if both of those hold. Without qualification, "identity" usually refers to a two-sided identity.

Anonymous

Anonymous Tue 28 May 2019 06:18:15 No.10678993 Report

Quoted By:

>>10678453
The Ampere is easier to measure. It's much easier (and more useful) to design equipment to measure current than to measure charge (particularly without using volts, the definition of which depends upon the Ampere).

The 2019 redefinition defines an Ampere as a Coulomb-second, with the Coulomb defined in terms of the elementary charge.

Anonymous

Anonymous Tue 28 May 2019 06:34:24 No.10679014 Report

Quoted By: >>10679029 >>10679144

>>10666075
Is climate change an actual thing backed by irrefutable proof or is it just heavily politicized?
I know that may be an exceptionally stupid question, but I'm worried about the geopolitical consequences. If it's as dire as people make it out to be then it sounds like war is inevitable.

Anonymous

Anonymous Tue 28 May 2019 06:43:05 No.10679029 Report

Quoted By:

>>10679014
It's both. Politicians are unscrupulous bastards and will leech onto anything significant for votes/donations/fearmongering purposes.
In an ideal world, we would look at the data, draw reasonable conclusions from it, and plan accordingly. But no. Everyone has an agenda.

Anonymous

Anonymous Tue 28 May 2019 08:31:51 No.10679144 Report

Quoted By:

>>10679014
> Is climate change an actual thing backed by irrefutable proof
Yes. Well, as close to irrefutable as you can get for something as complex as climate. The greenhouse effect is irrefutable, as is the fact that we've spent the past century or so converting buried hydrocarbons into atmospheric CO2, and all the available evidence indicates that what we would expect to happen is actually happening. What's impossible to prove is the extent (if any) to which as-yet-unknown factors might mitigate this. But if it gets to the point we get *absolutely irrefutable* proof, we're already fucked.

> or is it just heavily politicized?
Also yes. A lot of people would really like for it not to be real. And it's not simple enough that a sceptical-but-honest layperson can be convinced in an hour or two. That means there's a lot of votes available for people willing to say it isn't real.

Anonymous

Anonymous Tue 28 May 2019 08:45:47 No.10679158 Report

Quoted By: >>10679168

>>10666075
photons of distant galaxies are redshifted, that means emitted_photon_energy - absorbed_photon_energy > 0
where did that energy go?

Anonymous

Anonymous Tue 28 May 2019 08:48:47 No.10679165 Report

Quoted By: >>10680076

>>10677666
You keep your head down, forget about 4chan, don't hide from work and don't boast or wander too far into other people's responsibilities.
Be nice to people, go to lunch with your coworkers, and remain calm. It is not too difficult.

Good Luck!

Anonymous

Anonymous Tue 28 May 2019 08:50:47 No.10679168 Report

Quoted By:

>>10679158
I think Mr. Doppler has something to do with that. The Universe is expanding, where is that energy coming from?

Anonymous

Anonymous Tue 28 May 2019 10:14:19 No.10679254 Report

Quoted By: >>10679258

I was calculating the work done by friction as a block moves from x=2 to x=10, which is -8uN. When the block moves from x=10 to x=2 instead, the work done by friction should be the same, yet when I do it with an integral, I get an answer with the wrong sign. Where am I going wrong?

Anonymous

View Same Google iqdb SauceNAO P_20190528_201023_vHDR_On.jpg, 3MiB, 2620x4656

Anonymous Tue 28 May 2019 10:15:59 No.10679258 Report

Quoted By: >>10679294

>>10679254
Forgot pic

Anonymous

View Same Google iqdb SauceNAO 295B6254C187446295AB847E02BB3049.jpg, 257KiB, 1280x1920

Anonymous Tue 28 May 2019 10:30:22 No.10679288 Report

Quoted By: >>10679355

What are sime scientific-proven ways to increase testosterone?
I realised that I am overly emotional and often don't act rationally and I want to change this.

Anonymous

Anonymous Tue 28 May 2019 10:30:41 No.10679290 Report

Quoted By: >>10679431

>>10666075
Why am I attracted to women??

Anonymous

Anonymous Tue 28 May 2019 10:33:17 No.10679294 Report

Quoted By: >>10679296

>>10679258
ds should always be positive (displacement is always positive)

Claim your coordinate system explicitly such that F has a negative magnitude.

$\mathbf{W} = \displaystyle \int \limits_{x_{i}}^{x_{f}} - \vec{F} \cdot \mathrm{d}\vec{s} \\ \therefore \\ \mathbf{W} = -\ \textrm{some negative work}$

Anonymous

Anonymous Tue 28 May 2019 10:34:22 No.10679296 Report

Quoted By:

>>10679294
F1(push) is positive but F2(friction is negative)

Anonymous

Anonymous Tue 28 May 2019 10:36:34 No.10679302 Report

Quoted By:

Hey triggered metric fags, what are you going to do about sea level or an"atmosphere?" Has this shit been taken care of? Kinda like the Kings thumb or whatever right? I guess a kilopascal is something. Where that shit came from besides it was named after the hydraulic dude?

Anonymous

Anonymous Tue 28 May 2019 11:06:46 No.10679352 Report

Quoted By: >>10679353

when calculating Reynolds number from Navier-Stokes, on what basis do we conjurate the velocity as
$v(\vec{r})=v_0f(\frac{\vec{r}}{l})$
and how can this equation define similarity between two different fluid flow:
$f f'=\frac{\eta}{l \rho v_0^} f''$

Anonymous

Anonymous Tue 28 May 2019 11:08:06 No.10679353 Report

Quoted By:

>>10679352
$f f'=\frac{\eta}{l \rho v_0 } f''$

Anonymous

Anonymous Tue 28 May 2019 11:09:43 No.10679355 Report

Quoted By:

>>10679288
200mg test e/week

Anonymous

Anonymous Tue 28 May 2019 11:55:35 No.10679431 Report

Quoted By: >>10679646

>>10679290
it means you have good genes.
gay people are nature's way of removing bad genes from the population.

Anonymous

Anonymous Tue 28 May 2019 11:58:00 No.10679437 Report

Quoted By:

>>10666075
Always been shy of asking this though what are you supposed to do with proofs of equations and long explanations in mathematical textbooks - say if there's a long step-by-step solution to something are you supposed to memorize it? Seems like a draconian level of effort for something like that, especially as a footnote in a book around 300~ pages. Yet if I just read it I'll forget it and presumably the rest of the material will be dulled in my mind as a result.

Anonymous

Anonymous Tue 28 May 2019 13:27:19 No.10679534 Report

Quoted By:

Anyone knows of an introductory text on electromagnetism for mathematicians?

Anonymous

Anonymous Tue 28 May 2019 14:32:54 No.10679646 Report

Quoted By: >>10679653

>>10679431
I have terrible genes.
I'm bisexual so...
I like women and traps/twinks.

>gay people are nature's way of removing bad genes from the population.
How??

Women dominate my sexual and romantic interests though and it bothers me as I view it as a weakness...

Anonymous

Anonymous Tue 28 May 2019 14:35:13 No.10679652 Report

Quoted By:

>>10666075
Obviously a Christian girl coming back from prayer.

Anonymous

Anonymous Tue 28 May 2019 14:35:33 No.10679653 Report

Quoted By: >>10679665 >>10679690 >>10679864

>>10679646
How?
What kind of stupid question is that.
They simply will not reproduce because they have sex with men.
If they don't pass their genes to their offspring,their blood line ends right then and there.

Anonymous

Anonymous Tue 28 May 2019 14:41:51 No.10679665 Report

Quoted By: >>10679788

>>10679653
How is homosexuality an indicator of inferiour genes??

Anonymous

Anonymous Tue 28 May 2019 14:50:15 No.10679690 Report

Quoted By:

>>10679653
that's not how genetics work

Anonymous

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Anonymous Tue 28 May 2019 15:21:10 No.10679745 Report

Quoted By: >>10679812 >>10679815

I don't even know where to begin with this.
Isn't one of the axioms of probability that P(U) = 1?

I need help.

Anonymous

Anonymous Tue 28 May 2019 15:50:22 No.10679788 Report

Quoted By: >>10679792 >>10679807

>>10679665
Nature is simpler that you simple mind can imagine.
If people existed through millennia via reproduction then it comes natural to a creature to continue his genes.
To continue you create a kid.
Every mammal/animal does this and human is both of these.
If you are gay as fuck you wont be making any babies.
Therefore you end.
It is that simple and there is nothing more to it.
There are 7 billion people on this planet so ofcourse all human processes will be more observable just based on the numbers,including being gay.
There are not many gay people but population is so big on this planet that they are very apparent.
Call it natural selection or call it "insert scientific term here" it is a fact.

Anonymous

Anonymous Tue 28 May 2019 15:53:18 No.10679792 Report

Quoted By: >>10679800 >>10679807

>>10679788
>Those who do not reproduce, do not reproduce
Thanks man, you really enlightened me.

Now, how is homosexuality an indicator of inferiour genes?

Anonymous

Anonymous Tue 28 May 2019 15:56:12 No.10679800 Report

Quoted By:

>>10679792
You tell me bud,since you are the one taking it in the ass.

Anonymous

Anonymous Tue 28 May 2019 16:01:29 No.10679807 Report

Quoted By: >>10679830

>>10679788
>>10679792
Or rather what inferior traits do homos have? I know a few and they just seem average, doesn't it make more sense for the say disabled to be gay?

Anonymous

Anonymous Tue 28 May 2019 16:03:23 No.10679810 Report

Quoted By:

Anyone here familiar with eurobarometer and or stata?

I want to figure out what issue was most important to citizens in different countries before an election. Eurobarometer was the best source i could find.
Im not proficient with stata. Anyone can help?

Anonymous

Anonymous Tue 28 May 2019 16:03:41 No.10679812 Report

Quoted By:

>>10679745
Well, if a test you will try and the results always fly, "That's a Bayes".

Look at it this way: There's a chance of success of 1/20000, meaning the chance of failure is 19999/20000. Call this The Truth.
You can't examine the truth directly, but you can run tests. These tests are not absolutely reliable; the reliability is given through the probabilities for false positive and false negative: if the test says "No", that means about 1 in 200 times (half a percent) it should have said "Yes". Likewise for the false positive.

P(U) is 1, that's true. Now you go figure out how U is partitioned into TP, TN, FP, FN. Then you can answer the question.

Anonymous

Anonymous Tue 28 May 2019 16:04:25 No.10679815 Report

Quoted By: >>10680451

>>10679745
The unconditional probability of oil is 1/20000. The probability of a negative result given that there's oil is 0.5%. The probability of a positive result given that there's no oil is 2%. Now, using the laws of conditional probability (e.g. Bayes' Theorem), what is the probability of oil given a positive result?

Anonymous

Anonymous Tue 28 May 2019 16:14:37 No.10679830 Report

Quoted By:

>>10679807
You are mixing intelligence with genetic code.
There are very stupid people that have 5 kids,they are my neighbors.
There are intellectually smart gay people that will have zero kids.
Homosexuals don't just wake up and decide they will take cock,as they say-they just know.
Disabled people are note retarded by choice,they are born with defective genes,see trisomy.
Its not by choice they become gay,its literally imprinted in them.
Thats the last thing from me on this faggot shit.

Anonymous

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Anonymous Tue 28 May 2019 16:24:24 No.10679842 Report

Quoted By: >>10679866 >>10680157

Solve me this equation without simply "brute forcing" it.

x2 - y = 1
x + y =5

What's x and y?

Anonymous

Anonymous Tue 28 May 2019 16:33:33 No.10679864 Report

Quoted By:

>>10679653
Homosexuals can have children though, especially in a society were they are punished for homosexual behaviour (most of human history). The gay genes can also land in a woman and the lesbo genes in a man.
Did you know that homosexuals tend to have sisters that are more sexually active? 23 and me recently even published some findings about gay genes, and they seem to interact with smell, vision and other sensory stuff. Probably there are no gay genes, but genes that make you like cock/male pheromones more and analogous genes that make you like pussy/female pheromones.
So it looks like gay genes are good in a woman and lesbo genes are good in a man. That's why these genes are still around, because theyre good genes that make us reproduce more :^)
I mean if all that "natures way of removing bad genes" mumbo jumbo was true, we wouldn't have gays anymore, just like we dont have dense body hair anymore. But gays are still there.

Anonymous

Anonymous Tue 28 May 2019 16:34:38 No.10679866 Report

Quoted By:

>>10679842
Add the equations together to get:
x^2 + x = 6
x^2 + x - 6 = 0
(x+3)(x-2) = 0
x = -3 or x = 2

Because x + y = 5, the solutions are (x=-3, y=8) and (x=2, y=3).

Anonymous

Anonymous Tue 28 May 2019 16:43:05 No.10679895 Report

Quoted By: >>10680122 >>10680494

Say you have the following lottery game: You pick 5 unique numbers from 1 to 90 (inclusive). The chance to get all 5 right is very low, not one number is more likely to be a winning number than the rest. But aren't there picks that are more likely? Let me explain my theory:
The odds that all numbers will be primes are quite low. The odds that all numbers will be divisible by 10 or 5 or 3 or 2 are all greater, divisible by 2 being the greatest. However it's also very unlikely that all numbers will be even, when half are odd. So a pick of 3 even and 2 odd numbers is decent, as opposed to all of them even or odd. What other "rules" like this can you think of anons? I also think it has something to do with primes generating (N,*).

Anonymous

Anonymous Tue 28 May 2019 16:56:42 No.10679917 Report

Quoted By:

>>10666388
no, the difference is the colour filter place in front of it

Anonymous

Anonymous Tue 28 May 2019 16:57:51 No.10679920 Report

Quoted By:

>>10666404
just do physics

Anonymous

Anonymous Tue 28 May 2019 17:23:09 No.10679963 Report

Quoted By:

>>10674658
you're literally equal to yourself nigger.

Anonymous

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Anonymous Tue 28 May 2019 17:35:11 No.10679989 Report

Quoted By: >>10680109

Why the second option just doesn't work

Anonymous

Anonymous Tue 28 May 2019 18:10:12 No.10680076 Report

Quoted By: >>10680091 >>10680133

>>10679165
>>10677666

I've done some cursory research online about how to act during an internship. And I get conflicting advice. Some people say ask lots of questions, take notes (like carry around a notebook? A briefcase?). While others say "Dont ask lots of questions bc you'll annoy people. So which is it? aaaaaaaaaaaa

Anonymous

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Anonymous Tue 28 May 2019 18:14:29 No.10680087 Report

Quoted By: >>10680094 >>10680095

how do you treat this injury?
should i cut off the skin or just leave it there to cover the wound?

Anonymous

Anonymous Tue 28 May 2019 18:16:52 No.10680091 Report

Quoted By: >>10680100

>>10680076
Jesus Christ anon, get some context clues. This really isn't rocket science, and obviously there is no one true way of acting in any internship. What the fuck are you expecting?

Ask somebody a question about what's up. If they answer very curtly and don't look at you much, or look at you with a borderline aggressive/annoyed look on their face, take the hint, shut up. If on the other hand the answer is very elaborate and the person delivering it is friendly, maybe ask some more the next day.

Stop trying to take life as a board game with fixed rules. There are none.

Anonymous

Anonymous Tue 28 May 2019 18:17:59 No.10680094 Report

Quoted By: >>10680099

>>10680087
Cut it off or don't, new skin will form either way. As a matter of preference, I'd cut it off.
Then put some iodine on a band aid and stick it on there.

Anonymous

Anonymous Tue 28 May 2019 18:18:36 No.10680095 Report

Quoted By:

>>10680087
flush with alcohol if you cut it with something unclean
cut dead skin off
wash out with warm water
bandaid + neosporin

thats what i would do but am not medically trained

Anonymous

Anonymous Tue 28 May 2019 18:19:22 No.10680099 Report

Quoted By:

>>10680094
I don't have iodine

Anonymous

Anonymous Tue 28 May 2019 18:19:39 No.10680100 Report

Quoted By: >>10680106 >>10680133

>>10680091
Why are you so triggered about someone asking a simple question?

Anonymous

Anonymous Tue 28 May 2019 18:21:01 No.10680106 Report

Quoted By: >>10680111

>>10680100
I think I explained the reasoning. If you have a better answer, just post it, I'm not holding you back.

Anonymous

Anonymous Tue 28 May 2019 18:23:26 No.10680109 Report

Quoted By: >>10680238

>>10679989
Actually the first anser is wrong and the second answer is correct.
The problem is with the last step:
1227/60 = 20.45 min, but that's not the same as 20m45s

Anonymous

Anonymous Tue 28 May 2019 18:23:40 No.10680111 Report

Quoted By: >>10680120 >>10680133

>>10680106
There's just no reason to talk down to others who are politely asking for advice.

Anonymous

Anonymous Tue 28 May 2019 18:28:21 No.10680120 Report

Quoted By: >>10680373

>>10680111
And advice I gave, in earnest. The banter was in jest, and not meant in an unfriendly way.

I mean, picture somebody acting in a certain way that could be described as formulaic. "When Bob stands next to me at the fountain, he always asks about [whatever]. It annoys me, all I want is a quiet break. I asked him about why, and he said 'I asked the basket weaving people and they advised me to always ask questions at the water cooler! And you have to answer, that's the rules!'" ... can you see my perspective?

The "What the fuck are you expecting?" was meant this way. Is he expecting a fixed ruleset?

Anonymous

Anonymous Tue 28 May 2019 18:30:13 No.10680122 Report

Quoted By: >>10680161

>>10679895
>But aren't there picks that are more likely?
No, absolutely not.
Every pick has equal probability to win.

Anonymous

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Anonymous Tue 28 May 2019 18:36:05 No.10680133 Report

Quoted By: >>10680148

>>10680100
>>10680111
All right, I bow to the digits and will say:

>>10680076
>>10677666
I'm sorry about not choosing my words more carefully. Just walk in there and try to relax, go with what others are doing. Busy beavers everywhere? Get your head down and join them. If you have your skills down, don't worry too much, it'll work out fine. You're a champ.

Also, nice digits.

Anonymous

Anonymous Tue 28 May 2019 18:42:12 No.10680144 Report

Quoted By: >>10680200

How to find out algorithmically whether a line intersects a line segment? I already checked the special case (both are parallel), line and line segment are given as point and vector each (2D though I guess it does not matter)

Anonymous

Anonymous Tue 28 May 2019 18:43:57 No.10680148 Report

Quoted By: >>10680158

>>10680133
haha look at this bitch apologizing

Anonymous

Anonymous Tue 28 May 2019 18:47:11 No.10680157 Report

Quoted By:

>>10679842
what the other anon said, but use p-q or abc formula to solve the quadratic equation

Anonymous

View Same Google iqdb SauceNAO multiple_choice.jpg, 18KiB, 480x360

Anonymous Tue 28 May 2019 18:47:59 No.10680158 Report

Quoted By:

>>10680148
Yeah, well I never said I was wrong.

Fuck you, asshole.

Have a nice day.

Anonymous

Anonymous Tue 28 May 2019 18:50:06 No.10680161 Report

Quoted By: >>10680225

>>10680122
I don't mean the exact 5 numbers, but the way of chosing them.

Anonymous

Anonymous Tue 28 May 2019 19:14:45 No.10680200 Report

Quoted By: >>10680318

>>10680144
> How to find out algorithmically whether a line intersects a line segment?
The line can be described using the implicit equation ax+by+c=0. Plug the x,y coordinates of the two endpoints of the line segment into ax+by+c; if the signs differ, the line intersects the segment.

Anonymous

Anonymous Tue 28 May 2019 19:25:27 No.10680225 Report

Quoted By: >>10680275

>>10680161
There is no way of choosing the 5 numbers that will give you a higher probability of winning.
Every way of choosing 5 numbers will give you the same probability of winning.

Anonymous

View Same Google iqdb SauceNAO why2.png, 9KiB, 703x230

Anonymous Tue 28 May 2019 19:31:49 No.10680238 Report

Quoted By: >>10680257 >>10680313

>>10680109
I'm still cofused since textbook gave first answer with first explanation as correct and my version with ~presumably~ wrong answer was the second.
I've checked it multiple times, still got 20 min 27 sec and decided to check if google will bring up some alternate opinions. Two people solved it like in the first question and got 20 min 45 sec and when I punch in 1227 sec to min in any converter it also gives 20 min 45 sec
Can you please explain why 0,45 min is not 45 sec? It can't be 45/100 of minute? Can it?

Anonymous

Anonymous Tue 28 May 2019 19:42:45 No.10680257 Report

Quoted By: >>10680310

>>10680238
>It can't be 45/100
That's exactly what 0,45 means.

>when I punch in 1227 sec to min in any converter it also gives 20 min 45 sec
No, it gives you 20,45 minutes. You will not find a single converter that claims that 1227 sec is equal to 20 min and 45 seconds

Anonymous

Anonymous Tue 28 May 2019 19:49:13 No.10680275 Report

Quoted By: >>10680338

>>10680225
Are you really retarded? Picking only prime numbers vs picking only even numbers has great difference in chances.

Anonymous

View Same Google iqdb SauceNAO Thanks.jpg, 12KiB, 225x225

Anonymous Tue 28 May 2019 20:05:36 No.10680310 Report

Quoted By:

>>10680257
AAAAAH I GOT IT THANK YOU
45/100 = 0,45 of a minute = 0,45 of 60 seconds
0,45*60=27 seconds
You were right about the converter

Anonymous

Anonymous Tue 28 May 2019 20:06:29 No.10680313 Report

Quoted By:

>>10680238
>Two people solved it like in the first question and got 20 min 45 sec and when I punch in 1227 sec to min in any converter it also gives 20 min 45 sec
Then they are all wrong or you are misunderstanding. Think about it.
1227 = 1200 + 27 = (20*60) + 27
Note that the 27 isn't multiplied by 60 so it's not grouped into minutes like the 20 on the left. Also, you can take 27 = (27/60)*60.
In this case, you ARE grouping it into minutes, but it's 27/60 minutes, which just happens to be 0.45 minutes, or 27 seconds.

Anonymous

Anonymous Tue 28 May 2019 20:10:09 No.10680318 Report

Quoted By:

>>10680200
Thx m8

Anonymous

Anonymous Tue 28 May 2019 20:18:35 No.10680338 Report

Quoted By: >>10680347 >>10680414

>>10680275
>when a retard calls you retarded

Picking {2, 3, 7, 11, 13} for example gives you the exact same probability of winning as picking {2, 4, 6, 8, 10}.
So no, picking prime numbers does not give you a better chance of winning compared to picking even numbers.

It IS true that the chance of the winning numbers all being prime is less than the chance of the winning numbers all being even.
But you draw a false conclusion from this. It does not mean that picking prime numbers gives you a better chance of winning.

.

I'm gonna use your own retarded logic against you now:
Imagine you're rolling a dice with the numbers 2, 4, 6, 8, 10 and 11 on it and you're trying to predict the outcome.
According to your logic picking an even number gives you a better chance of winning than picking an odd number, because there are more even numbers.
But this obviously isn't true. Whether you pick 2, 4, 6, 8, 10 or 11, they all have a 1/6 chance of being rolled.

Anonymous

Anonymous Tue 28 May 2019 20:23:14 No.10680347 Report

Quoted By: >>10680357

>>10680338
>It IS true that the chance of the winning numbers all being prime is less than the chance of the winning numbers all being even.
And that is all what I have been saying.

Anonymous

Anonymous Tue 28 May 2019 20:26:28 No.10680357 Report

Quoted By: >>10680372

>>10680347
That is not what you said. You said:
You said "Picking only prime numbers vs picking only even numbers has great difference in chances".

Anonymous

Anonymous Tue 28 May 2019 20:31:33 No.10680372 Report

Quoted By: >>10680380

>>10680357
Yes. Picking only even numbers has a greater chance than picking primes. The set of even numbers have more items than the set of primes.

Anonymous

Anonymous Tue 28 May 2019 20:31:39 No.10680373 Report

Quoted By: >>10681254

>>10680120
>JESUS CHRIST ANON, GET SOME FUCKING CONTEXT CLUES THIS ISN'T ROCKET SCIENCE WHAT THE FUCK WERE YOU EXPECTING?

>lmao dude it was just bantz

What is it with Aspies and this trend of being extremely condescending and then they get surprised when people interpret their open hostility as... hostility?

Anonymous

Anonymous Tue 28 May 2019 20:33:46 No.10680380 Report

Quoted By: >>10680394

>>10680372
I just explained how that is not the case.

Do you really believe picking {2, 4, 6, 8, 10} has a better chance of winning than {2, 3, 7, 11, 13} ?

Anonymous

Anonymous Tue 28 May 2019 20:37:53 No.10680394 Report

Quoted By: >>10680414

>>10680380
No, I believe picking 5 numbers from {2,4,6,..,88,90} gives you better chances than picking 5 numbers from {2,3,5,7,11..}.

Anonymous

Anonymous Tue 28 May 2019 20:40:13 No.10680399 Report

Quoted By:

Is there anywhere I can read about how animals and humans developed the ability to understand quantities from comparative (less/more) to specific numbers (3 vs 5)?

Anonymous

Anonymous Tue 28 May 2019 20:45:40 No.10680414 Report

Quoted By: >>10680420

>>10680394
Well it doesn't.
It literally doesn't matter which 5 numbers you pick.
The chance of winning is always the same.
You have to be braindead to not intuitively understand this.

I urge you to read my example with the dice again >>10680338
In this example you would say:
"No, I believe picking 1 number from {2,4,6,8,10} gives you better chances than picking 1 numbers from {11}."
But this OBVIOUSLY ISN'T TRUE.

I am so done with you

Anonymous

Anonymous Tue 28 May 2019 20:48:52 No.10680420 Report

Quoted By: >>10680426

>>10680414
How the fuck can you be this dense? How many times in history have lottery numbers been in an additive sequence? A lot less than not. Same principle, how many times have they all been primes? How many times have they all been even? Picking all even numbers gives greater chance that the winning numbers will be the same, not because that 5 numbers are independently or together more likely to be chosen, but because their kind is more likely to be chosen, given that there is a greater numebr of them.

Anonymous

Anonymous Tue 28 May 2019 20:52:00 No.10680426 Report

Quoted By: >>10680437 >>10680454

>>10680420
okay I'm done
either you are a troll or one of the dumbest people I've talked to

Anonymous

Anonymous Tue 28 May 2019 21:00:09 No.10680437 Report

Quoted By: >>10680494 >>10680511

>>10680426
I feel the same for you. Let's break it down to the core then. All 5 number combinations - picks - have the same chance to be the winning numbers. The chance that the winning numbers are all even is greater that them being all primes or in a sequence, simply because there are more 5 number combinations that are all even than those that are primes or in a sequence. Therefore if you pick primes only, it's not very likely that those will be the winning numbers. The specific combination that you chose - the pick - has the same chance as a specific combination of evens. But *a* combination of primes has less than *a* combination of evens. In your dice example, the chance of rolling an even number is far greater than rolling an odd number, even if specifically chosing an even number has the same chance of rolling that one odd number.

Anonymous

Anonymous Tue 28 May 2019 21:06:31 No.10680451 Report

Quoted By:

>>10679815
What about the probability that it was a positive result given there was oil? And vise versa? Why are these not considered?

Anonymous

Anonymous Tue 28 May 2019 21:08:07 No.10680454 Report

Quoted By:

>>10680426
The other anon is right.

Think about this: Take all of humanity, their heights. Picking a person that is exactly x nanometers high is infinitely small, because there is an infinite amount of people you can pick from (because height is analog). But picking someone from a range, say 180-185cm is very possible with a high chance for success.

Likewise, an exact winner match in whatever lottery has a small chance, but the winner numbers being from a set can differ based on the set (it's number of items).

I hope this helped.

Anonymous

Anonymous Tue 28 May 2019 21:28:50 No.10680494 Report

Quoted By: >>10680511 >>10680528

>>10680437
None of this changes the fact that >>10679895 is nonsense. Every pick has the same chance of winning. There is no "method" which will give you a better chance of winning.

Constraining the set of picks to some subset then choosing from those simply results in a factor which cancels. E.g. suppose you have to choose one number between 1-100 inclusive. 25 of those are prime, 75 aren't. If you choose a prime, there's a 1/4 chance that the winning number is prime, and a 1/25 chance that you picked the correct prime, for a total chance of 1/100. If you choose a non-prime, there's a 3/4 chance that the winning number is prime and a 1/75 chance that you picked the correct non-prime, for a total chance of 1/100.

Constraining picks to a smaller subset makes it less likely that the winning pick lies within that subset but if it does, it's more likely that your pick is the winning one. And vice versa. (k/n)*(1/k)=1/n; k cancels out.

tbqh, this all smells like a troll, similar to "proofs" that 1=2 or 1=-1. Introduce a bunch of intermediate steps so that the flaw gets obscured.

Anonymous

Anonymous Tue 28 May 2019 21:35:56 No.10680511 Report

Quoted By: >>10680528

>>10680437
>In your dice example, the chance of rolling an even number is far greater than rolling an odd number, even if specifically chosing an even number has the same chance of rolling that one odd number.

That's exatcly right!
It IS true that the chance of rolling an even number is far greater than rolling an odd number.
It IS NOT true that picking an even number gives you a higher probability of winning than picking an odd number.

So you agree with this statement right?:
"In the game where a dice with the numbers 2, 4, 6, 8, 10 and 11 will be rolled, and you have to give one number as your prediction,
then choosing an even number (aka choosing a number from the set {2,4,6,8,10}) will not give you a higher probability of winning than choosing an odd number (aka choosing a number from the set {11}). "

If you agree with that, then equivalently you should agree with:
"In a lottery where 5 numbers are randomly picked from {1,...,90}, and you have to give 5 numbers as your prediction,
then choosing 5 even numbers (aka choosing 5 numbers from the set {2,4,...,88,90}) will not give you a higher probability of winning than choosing 5 prime numbers (aka choosing a number from the set {2,3,5,7,11...}). "

>>10680494
thanks, you do a better job of explaining it than me

Anonymous

Anonymous Tue 28 May 2019 21:44:39 No.10680528 Report

Quoted By: >>10680564

>>10680494
Alright, then explain to me how come that certain subsets do have significantly more winner numbers than others, eg.: The set of 5 consequent numbers, and the set of 5 non-consequent numbers. I don't think every other lottery poll is a number sequence. I'm not trying to leap forward in logic or flaw anything. My whole basis is that I believe that if a subset is larger, then the chance of a winner number being chosen from it is also larger; but because it's a subset, your chance to pick the same one is greater than from the whole set.

>>10680511
Once again, I agree with one think: all specific picks have the same basic chance to be the winner pick. But there are kinds of combinations that occour rarely, for example an all prime winner pick, or a sequence winner pick. My proposition was that if you deliberately avoid these kinds of combinations, your chances to win are better.

Anonymous

Anonymous Tue 28 May 2019 22:02:10 No.10680564 Report

Quoted By:

>>10680528
>Once again, I agree with one think: all specific picks have the same basic chance to be the winner pick. But there are kinds of combinations that occour rarely, for example an all prime winner pick, or a sequence winner pick.
All of that is true.
>My proposition was that if you deliberately avoid these kinds of combinations, your chances to win are better.
That is flawed logic.

Generally speaking you seem to think:
If the winning result has a higher probability of satisfying condition x,
then choosing something which satisfies condition x has a higher probability of winning.

This is simply not true.
I have showed you why with the dice example and the other anon has showed you why with math.

Anonymous

Anonymous Wed 29 May 2019 02:40:48 No.10681254 Report

Quoted By:

>>10680373
Maybe the reason is that hostility is an intention, and you put this there by interpretation? Like the Caps. Just saying.

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