/sci/ - Science & Math

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Either physics or math is broken

Anonymous Fri 02 Jul 18:46:50 2021 No.13351602 View Reply Original Report

Quoted By: >>13355080

Physics says you can travel .999...x the speed of light, but not travel the speed of light. Math says these are the same thing. Which is wrong, physics or math? This should be causing a crisis in one of these communities.

23 posts and 1 image omitted

Anonymous

Anonymous Sat 03 Jul 2021 16:04:39 No.13355030 Report

Quoted By:

>>13351990
>it's not relevant just stop worrying about it!
No

Anonymous

Anonymous Sat 03 Jul 2021 16:11:57 No.13355054 Report

Quoted By:

>>13352743
No, talking about speeds with respect to a photon is not very meaningful.

Anonymous

Anonymous Sat 03 Jul 2021 16:17:38 No.13355076 Report

Quoted By: >>13355132

>>13352564
>Plasma sails are relatively trivial and enable significant % of the speed of light, I know its true because black soience man said so

Anonymous

Anonymous Sat 03 Jul 2021 16:18:41 No.13355080 Report

Quoted By:

>>13351602
>.999...x the speed of light
>the speed of light
>Math says these are the same thing.
No, only retards say that.

Anonymous

Anonymous Sat 03 Jul 2021 16:32:09 No.13355132 Report

Quoted By:

>>13355076
I'm not even him but you're retarded. The question isn't about what's practical or not

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Circuits

Anonymous Sat 03 Jul 14:38:53 2021 No.13354824 View Reply Original Report

Quoted By: >>13354835 >>13354865 >>13354914

Is it normal for my capacitor to behave like this?
No Current flows through it, exept at the beginning there's only one small charge.
Shouldn't there still flow some Volt through it?

Anonymous

Anonymous Sat 03 Jul 2021 14:41:13 No.13354835 Report

Quoted By: >>13354844

>>13354824
I hate LTSpice.
That is all.

Anonymous

Anonymous Sat 03 Jul 2021 14:42:32 No.13354844 Report

Quoted By: >>13355082

>>13354835
Me too but it's free

Anonymous

Anonymous Sat 03 Jul 2021 14:53:30 No.13354865 Report

Quoted By:

>>13354824
If I’m looking at this correctly, V1 is 20V every 5s, causing Q1 to “close” and pass 10V (from V2) through C1.

Assuming the sources are DC (which they look to be), and knowing capacitors behave as open circuits in DC at steady state, I can tell that C1 is charging up between 0 and ~10ms, then rolling into steady state (0V). Where exactly is node 7 and what is it measuring across for references?

I bet if you scrolled over to 5s on your graph, you’d see a discharge curve, then at 10s you’d see the exact same graph again..it’s been a while since I’ve used LTSpice though.

Anonymous

Anonymous Sat 03 Jul 2021 15:09:56 No.13354914 Report

Quoted By:

>>13354824
>No Current flows through it
unless you are considering leakage current, ideally caps don't conduct

>Shouldn't there still flow some Volt through it
volts don't flow. for circuits, voltage is the amount of energy a charge picks up from going from one point to another. thus you talk about voltage differences.
a good way to think of voltage is the elevation of a topo map.

current is the flow of charge. think of charges as little balls that are rolling around, and their motion creates a current. going back to the topo map analogy, charges would roll around in response to changes in elevation

Anonymous

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Anonymous Sat 03 Jul 2021 16:19:22 No.13355082 Report

Quoted By:

>>13354844
Not as in freedom.

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Jannies are retarded

Anonymous Sat 03 Jul 09:36:31 2021 No.13354049 View Reply Last 50 Original Report

Quoted By:

ITT we discuss why jannies delete actual math threads while letting /pol/tards and schizos shitpost all over the board.

>>13353043

58 posts and 9 images omitted

Anonymous

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Anonymous Sat 03 Jul 2021 15:24:44 No.13354947 Report

Quoted By:

>>13354940
Do what, shitpost and insult people?
Absolutely. Why, are you some sort of glow in the dark being paid to do it?

Anonymous

Anonymous Sat 03 Jul 2021 15:28:38 No.13354955 Report

Quoted By: >>13354969

>>13354937
>i have spent all day errrday looking at /sci/ for years on end. thats why other people who aren't social media obsessed, mentally ill, narcissistic autogynephiliacs, shouldn't be allowed to see a thread that is unfamiliar to them, becuase i saw something similar three years ago. all of the content on /sci/ needs to be catered to me specifically.

Anonymous

Anonymous Sat 03 Jul 2021 15:33:54 No.13354969 Report

Quoted By: >>13354975

>>13354945
>Considering leaving this faggy board over this shit.
Feel free.
>>13354955
>all of the content on /sci/ needs to be catered to me specifically.
Correct.

Anonymous

Anonymous Sat 03 Jul 2021 15:35:46 No.13354975 Report

Quoted By:

>>13354969
>Feel free.
I don't need permission. My point is that if jannies keep doing this shit, they'll drive away the few high quality posters they have left. though I doubt they'd even notice it, since I'm convinced the jannies are 17-18 year old morons.

Anonymous

Anonymous ## Mod Sat 03 Jul 2021 15:50:40 No.13355003 Report

Quoted By:

This thread was moved to >>>/qa/4634541

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Anonymous Sat 03 Jul 15:18:25 2021 No.13354935 View Reply Original Report

Quoted By:

why was the science lies thread deleted? it didn't violate any board rules.

2 posts and 1 image omitted

Anonymous

Anonymous Sat 03 Jul 2021 15:25:58 No.13354948 Report

Quoted By: >>13354968

>>13354946
Discussing the epistemology of the field is a metascientific topic anon.

Anonymous

Anonymous Sat 03 Jul 2021 15:27:31 No.13354953 Report

Quoted By:

/sci/ got overthrown by literal children for jannies a few months back who don't know shit and just remove threads and dole out bans because they get butthurt.

Anonymous

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Anonymous Sat 03 Jul 2021 15:29:29 No.13354957 Report

Quoted By:

friendly reminder

Anonymous

Anonymous Sat 03 Jul 2021 15:33:52 No.13354968 Report

Quoted By: >>13354996

>>13354948
>is there any science that isn't fake
No shit faggot, it's 100% shitty /pol/ bait thread

Anonymous

Anonymous Sat 03 Jul 2021 15:45:04 No.13354996 Report

Quoted By:

>>13354968
It's probably the exact same /pol/ retard who tried to make an "election fraud" thread and then got butthurt just like this lmao.
https://archived.moe/sci/thread/13339811/
https://archived.moe/sci/thread/13340139/

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/lit/ tries to into logic

Anonymous Sat 03 Jul 00:25:46 2021 No.13352795 View Reply Original Report

Quoted By: >>13354639

>>>>/lit/18570013
the "smartest" board for you
>A = A
according to /lit/ this is the most based question in logic

44 posts and 6 images omitted

Anonymous

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Anonymous Sat 03 Jul 2021 13:24:02 No.13354639 Report

Quoted By:

>>13353359
no, they are another arm of the trilemma

>>13352795
>- Weininger
I suppose this was more an incel shitpost than anything else.

In formal logic, it's also a question of the grammar of the language. Is A a constant?
In OP's pic, when interpreted in first order logic for example, the statement really is
>for all A holds that A = A

What can you do with equality? E.g. substitution.
How does one prove equality?

A=A is interesting when considering how to implement equality.
E.g. Peano arithmetic judges (1+2)^2 = 9 but of course the left hand side is intentionally different. E.g. we have to put work in to find out what normal form expression (SSSSSSSSS0, here) is is.
See e.g.
https://en.wikipedia.org/wiki/Extensionality

A big topic is how your logic system / type theory implements function equality.
Are two functions f,g the same if, given the same inputs, they give the same outputs?
>for all x. f(x)=g(y)
Or are two functions the same if all their properties are the same? More decidably, are they the same once the result of passing them to any higher order function is the same
>for all F. F(f) = F(g)
(indecernables)

All interesting questions.

Anonymous

Anonymous Sat 03 Jul 2021 13:27:30 No.13354649 Report

Quoted By:

(In Martin Löf theories such as Homotopy Type Theory, for any A, we have that $A=A$ is a type and the reflexivity axiom being discussed here is a term of it, i.e. the type is in a way pointed
$\mathrm{refl}\colon(A=A)$
and in languages like Idris, most identity proof rely on compiler rewriting that ends up using this point)

Anonymous

Anonymous Sat 03 Jul 2021 13:28:34 No.13354653 Report

Quoted By:

(In Martin Löf theories such as Homotopy Type Theory, for any type $A$ , we have that
$A=A$
is a type and the reflexivity axiom being discussed here is a term of it, i.e. the type is in a way pointed
${ \mathrm{ refl } } \colon (A=A)$
and in languages like Idris, most identity proof rely on compiler rewriting that ends up using this point)

Anonymous

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Anonymous Sat 03 Jul 2021 13:48:20 No.13354694 Report

Quoted By:

>>13353125
My problem is I can't create a problem without a solution. Hence it can be solved and create a problem which cant be solved.

Anonymous

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Anonymous Sat 03 Jul 2021 15:39:43 No.13354984 Report

Quoted By:

the thread died, just wanted to get some last laughs in, look at these "genious" "philosophers"

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Sorry I deleted your science thread, t. jannie

Anonymous Sat 03 Jul 15:32:48 2021 No.13354964 View Reply Original Report

Quoted By:

Science lies thread
ITT we point out and debunk the lies and fabrications forced on the general public by the people who call themselves "scientists".
Is there any science that isn't fake or is all of science a bunch of dark matter smoke and mirrors?

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Anonymous Thu 01 Jul 19:05:37 2021 No.13347559 View Reply Original Report

Quoted By: >>13354201

>we can discuss the fact that we are conscious
>therefore consciousness can affect the physical world
>therefore consciousness is part of the physical world
>current physics can only explain how objects interact; it cannot account for subjective experiences
>therefore physics is incomplete until the hard problem of consciousness is solved

23 posts omitted

Anonymous

Anonymous Fri 02 Jul 2021 18:14:33 No.13351492 Report

Quoted By:

Still too early to tell

Anonymous

Anonymous Fri 02 Jul 2021 18:24:45 No.13351532 Report

Quoted By:

>>13349049
"Knowing something" isn't having complete knowledge of it

Anonymous

Anonymous Sat 03 Jul 2021 02:22:52 No.13353181 Report

Quoted By:

Bumperino

Anonymous

Anonymous Sat 03 Jul 2021 10:53:40 No.13354201 Report

Quoted By: >>13354930

>>13347559
You can not quantify consciousness, it´s just a phrase that we use to classify certain levels on the scale of intellegence in living beings

Anonymous

Anonymous Sat 03 Jul 2021 15:16:06 No.13354930 Report

Quoted By:

>>13354201
How do you explain subjective experiences? The fact that you are seeing life in the first-person?

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Anonymous Sat 03 Jul 14:09:00 2021 No.13354740 View Reply Original Report

Quoted By: >>13354923

The fuck even is rain? Why's it so fucking cold?

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Anonymous Sat 03 Jul 07:10:11 2021 No.13353709 View Reply Original Report

Quoted By: >>13354320 >>13354323 >>13354463

So how do you stop a fire at sea /sci/?: https://twitter.com/disclosetv/status/1411070017337184263?s=19

4 posts and 1 image omitted

Anonymous

Anonymous Sat 03 Jul 2021 11:30:59 No.13354284 Report

Quoted By:

FIRE WATER BURN

Anonymous

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Anonymous Sat 03 Jul 2021 11:41:33 No.13354320 Report

Quoted By:

>>13353709
Add something non flammable and dense on the spot where the flames are to cut the oxygen supply.

Anonymous

Anonymous Sat 03 Jul 2021 11:42:48 No.13354323 Report

Quoted By:

>>13353709
>he belives the (((scientists)))

>fire at sea

yes yes yes...

Anonymous

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Anonymous Sat 03 Jul 2021 12:18:44 No.13354463 Report

Quoted By: >>13354922

>>13353709
With water

Anonymous

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Anonymous Sat 03 Jul 2021 15:12:07 No.13354922 Report

Quoted By:

>>13354463
"nothing" leaked, they say
they have it "under control"
pemex wouldn't lie

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Anonymous Sat 03 Jul 14:11:23 2021 No.13354750 View Reply Original Report

Quoted By: >>13354754 >>13354757 >>13354790 >>13354836

Science lies thread
ITT we point out and debunk the lies and fabrications forced on the general public by the people who call themselves "scientists".
Is there any science that isn't fake or is all of science a bunch of dark matter smoke and mirrors?

Anonymous

Anonymous Sat 03 Jul 2021 14:14:09 No.13354754 Report

Quoted By:

>>13354750
String theory is just a front for particle physicists to have an infinite source of funding, as they just have to get to the next energy level with a new collider to test their theory. Happens every time.

Anonymous

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Anonymous Sat 03 Jul 2021 14:14:29 No.13354757 Report

Quoted By:

>>13354750
I only trust prof. Membrane.

Anonymous

Anonymous Sat 03 Jul 2021 14:25:53 No.13354790 Report

Quoted By:

>>13354750
If it's not science, then it has nothing to do on this board, retard!

Anonymous

Anonymous Sat 03 Jul 2021 14:41:16 No.13354836 Report

Quoted By: >>13354916

>>13354750
>Is there any science that isn't fake or is all of science a bunch of dark matter smoke and mirrors
yes
what are you even doing on this board?

Anonymous

Anonymous Sat 03 Jul 2021 15:10:08 No.13354916 Report

Quoted By:

>>13354836
>what are you even doing discussing science on the science board?
lmao triggerd hard

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Either physics or math is broken

Circuits

Jannies are retarded

/lit/ tries to into logic

Sorry I deleted your science thread, t. jannie