/sci/ - Science & Math

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Water vapour emissions?

Anonymous Mon 23 Sep 03:24:52 2019 No.10995487 View Reply Original Report

Quoted By:

I've always agreed that nuclear energy should be invested in and made into our primary source of energy (maybe even using thorium I guess?)

However, I recently came across a claim that water vapor is the most abundant greenhouse gas. Its nowhere near being as efficient as CO2 in the atmosphere when in identical quantities, but my question is, would nuclear energy make a huge impact regarding greenhouse gas emissions(water vapor). Please correct me if in wrong with anything as I am not very confident in my understanding of these topics.

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Sex boosts testosterone?

Anonymous Mon 23 Sep 02:57:53 2019 No.10995423 View Reply Original Report

Quoted By: >>10995482

I heard that ejaculating in a vagina causes the testosterone to raise.
My question is wether having sex with trannies and men have the same effect.

10 posts omitted

Anonymous

Anonymous Mon 23 Sep 2019 03:20:56 No.10995476 Report

Quoted By:

>>10995468
Holy fuck it's a health question

Anonymous

Anonymous Mon 23 Sep 2019 03:21:40 No.10995479 Report

Quoted By: >>10995484

>>10995471
Those are men too, you homo. I'd say just do it. If you are even pondering about fucking man ass then you are already too far gone. I hope that you still feel straight after Tyrene (dead name: Tyrone) is fucking your asshole with his BBC (female)

Anonymous

Anonymous Mon 23 Sep 2019 03:22:35 No.10995482 Report

Quoted By: >>10995484

>>10995423
If you even need to ask this question you're an absolute faggot. Having sex with a tranny is the first step towards becoming a tranny yourself. Trannyism is therefore contagious.

Anonymous

Anonymous Mon 23 Sep 2019 03:23:57 No.10995484 Report

Quoted By: >>10995486

>>10995479
>>10995482
Whatever man i just want to know the health aspect of it (testosterone)

Anonymous

Anonymous Mon 23 Sep 2019 03:24:28 No.10995486 Report

Quoted By:

>>10995484
dilate

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When will human cloning become legal and affordable?

Anonymous Sun 22 Sep 22:22:13 2019 No.10994833 View Reply Original Report

Quoted By: >>10995202 >>10995368

i want to clone myself and have sex with my clone but i need to know something first. Can you make your clone female or your clone takes your XY genes too? i dont want to do gay stuff,no thx

10 posts and 1 image omitted

Anonymous

Anonymous Mon 23 Sep 2019 00:42:53 No.10995202 Report

Quoted By:

>>10994833
I am more interested in selective insemination. Fabricate a fetus using the best genetics from both parents.

Anonymous

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Anonymous Mon 23 Sep 2019 02:20:20 No.10995368 Report

Quoted By: >>10995377 >>10995485

>>10994833
>i want to clone myself and have sex with my clone but i need to know something first.
>Can you make your clone female or your clone takes your XY genes too? i dont want to do gay stuff,no thx
Strictly speaking, clones could not be of the opposite sex.
Clones share all of their DNA; if two people are of the opposite sex, one would have two X chromosomes while the other has one X and one Y.
However, you could get very close to clones if the female "clone" has two copies of the male's X chromosome.
The only genetic difference would be that the male has a Y chromosome that the female does not.
Proceeding with the answer from this point, the offspring would not be genetically identical to the clone parents. You have two copies of each of your genes: one from each parent.
If your two copies are exactly the same, you are homozygous for that gene; if you have two slightly different versions, you are heterozygous for that gene.
Let's say that a certain gene has alleles (gene versions) "A" and "a" for a certain gene.
If the clone parents are homozygous (they have "AA" or "aa"), then their offspring would be the same for that gene.
However, if the clone parents are heterozygous (they have "Aa"), the baby could have "AA", "Aa", or "aa".
In other words, the baby of the "clones" could be different from the parents at the genes where the parents are heterozygous.
This baby would not be a clone.
The one circumstance in which the offspring would be genetically identical to the "clone" parents would be if the parents were homozygous at every single gene.

Anonymous

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Anonymous Mon 23 Sep 2019 02:27:18 No.10995377 Report

Quoted By: >>10995485

>>10995368
Though...it IS actually possible to actually clone yourself if you fuck a perfect female clone of yourself or viseversa.
In fact the odds would be 1 in 1,388,608, due to the human genome being diploid.
To explain more fully; your genome consists of 23 pairs of chromosomes (46 in total).
When you reproduce you pass on just one of each of these pairs of chromosomes to your offspring, and the other comes from the other parent.
So let's look at your genome and the genome of your identical clone (of the opposite gender) with whom you wish to produce a clone child.
We'll ignore the difficulty of the sex chromosomes for the moment and just look at chromosome 1.
You have two copies of chromosome 1 in your genome, which we will call A and B, giving you the genotype AB.
Your opposite gender clone also has the genotype AB.
When the two of you breed you produce a simple punnet square of possible outcomes:
-An A from you and an A from your clone produces a child with genotype AA.
-An A from you and a B from your clone produces a child with genotype AB.
-A B from you and an A from your clone produces a child with genotype AB.
-A B from you and a B from your clone producess a child with genotype BB.
That without counting O or rhesus.

Put more simply you would produce a child with the same AB genotype as yourself only half the time (ignoring the very rare chance of trisomy occuring).
These odds would then have to be repeated for every one of the 23 chromosome pairs in your genome, making the odds of you producing a clone of yourself by mating with yourself 1 in 2^23 = 1 in 1,388,608.

Anonymous

Anonymous Mon 23 Sep 2019 02:32:24 No.10995387 Report

Quoted By:

I read somewhere they sell pigs for that. With human antigens etc.

Anonymous

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Anonymous Mon 23 Sep 2019 03:24:05 No.10995485 Report

Quoted By:

>>10995368
>>10995377

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CSfag here

Anonymous Sun 22 Sep 21:22:12 2019 No.10994684 View Reply Original Report

Quoted By: >>10994959 >>10995483

>Precalculus
>Logic / proofs
>Probability
>Linear algebra
>Algorithms
Is this enough of math for CS to get an entry level job? I'm self-studying and I'm currently focusing on practical stuff, but that's nearing to an end.
Please recommend books too. And is this doable till 2020 if I start tomorrow? I already have experience with precalc and logic but it's quite rusty now, I'll start from scratch.

2 posts omitted

Anonymous

Anonymous Sun 22 Sep 2019 21:42:28 No.10994744 Report

Quoted By: >>10994890

Also please recommend a physics book. I don't really care about physics but I want to know at least something basic. Doesn't have to be rigorous at all, just to provide me with basic but solid knowledge. No meme books pls.

Anonymous

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Anonymous Sun 22 Sep 2019 22:46:13 No.10994890 Report

Quoted By:

>>10994744

Kleppner and Kolenkow's Mechanics is a good introductory book, they use it in the UCs. The real beauty in it is where it should be; the problems are excellent and challenging. For E&M, use Wangsness or, if you want a quick and dirty brainlet book, Griffiths.

Anonymous

Anonymous Sun 22 Sep 2019 23:20:10 No.10994959 Report

Quoted By:

>>10994684
Is that ESR looking at porn?

Anonymous

Anonymous Sun 22 Sep 2019 23:25:02 No.10994970 Report

Quoted By:

>>10994739
For Linear Algebra, Klaus Janich's book is really good.
Axler is also very popular.
I recommend very much all low level maths by Serge Lang (Elementary Linear Algebra, Calculus and Multivariate Calculus). Be careful that Lang also wrote books for math majors and for math grad students, so be careful to not get the wrong books if you try Lang.
Lang's Basic Mathematics is popular for precalc. Euler's Algebra is the /sci/ alternative.
Euler is better, but Lang writes and orders thinks in a way that is more "modern", so pick your poison.

Anonymous

Anonymous Mon 23 Sep 2019 03:22:46 No.10995483 Report

Quoted By:

>>10994684
How are you self-studying CS? I just started going through programming principles and practice.

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Manipulation/Control of Gravity

Anonymous Sun 22 Sep 09:42:26 2019 No.10993248 View Reply Original Report

Quoted By:

Serious thread: Don't say it's impossible if you haven't researched this topic explicitly.

Let's share whatever information we have to see if we can learn more about the universe and some of the lesser known or even obfuscated facts therein.

https://arxiv.org/pdf/physics/0701091.pdf

http://industrialtests.com/wp-content/uploads/Theory-of-Electromagnetism-and-Gravity-JHEPGC-1.pdf

http://vixra.org/pdf/1812.0255v4.pdf

These can get us started, it touches on both small and large abstractions and applications.

>Focus on the science and technology, not on useless conjecture surrounding the topic.

21 posts and 2 images omitted

Anonymous

Anonymous Mon 23 Sep 2019 03:07:17 No.10995437 Report

Quoted By: >>10995448

>>10995337
Not him but so far your opinion has had nothing to do with the subject of this thread. Do you have anything to say about the relationship between gravity and electromagnetism itself?

Anonymous

Anonymous Mon 23 Sep 2019 03:11:29 No.10995448 Report

Quoted By: >>10995467

>>10995437
>Do you have anything to say about the relationship between gravity and electromagnetism itself?
Yes. There is no known relationship between EM and gravity.

Anonymous

Anonymous Mon 23 Sep 2019 03:16:52 No.10995467 Report

Quoted By: >>10995481

>>10995448
That YOU are aware of.
https://arxiv.org/pdf/gr-qc/0311030.pdf

Read the research papers and lurk more or go somewhere else.

Anonymous

Anonymous Mon 23 Sep 2019 03:19:58 No.10995474 Report

Quoted By:

Technically speaking, any energy-mass or momentum distribution creates a gravitational disturbance. The problem isn't so much creating said disturbance, it's creating one significant enough to be useful. None of our technology at this point can create a disturbance useful enough to warrant consideration.

Anonymous

Anonymous Mon 23 Sep 2019 03:22:04 No.10995481 Report

Quoted By:

>>10995467
>dude gauss's law for gravity
Using the mathematics developed for relativistic EM and applying it to gravity is not the same as experimentally finding a an interaction between gravity and EM fields.

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Does anyone here actually do science?

Anonymous Sun 22 Sep 18:41:43 2019 No.10994233 View Reply Original Report

Quoted By: >>10995435

34 posts and 6 images omitted

Anonymous

Anonymous Mon 23 Sep 2019 03:01:25 No.10995427 Report

Quoted By: >>10995436

>>10995421
what isn’t clear in this? https://arxiv.org/pdf/hep-th/9802150.pdf

Anonymous

Anonymous Mon 23 Sep 2019 03:05:58 No.10995435 Report

Quoted By: >>10995466

>>10994233
Today I cooked my hot pockets for 3:31. Tomorrow I will try 3:28. This is for 4 pockets on a single plate in a Kenmore 721 unit on high. I think I have the cook time down to almost the perfect texture for finish. I am considering getting a TC for my freezer, since I think there may be significant variance in the frozen pockets when they leave the freezer.

Anonymous

Anonymous Mon 23 Sep 2019 03:06:45 No.10995436 Report

Quoted By:

>>10995427

>https://arxiv.org/pdf/hep-th/9802150.pdf

Quite a few things. Been reading the wiki and getting up to speed on the anti-de sitter space thing. Pretty cool stuff but you have not been helpful at all.

Thanks for the LARPing fag.

Anonymous

Anonymous Mon 23 Sep 2019 03:16:41 No.10995466 Report

Quoted By:

>>10995435
might as well give up. those things will always come out with one part still frozen and another cooked to petrification. It's a scientific fact.

Anonymous

Anonymous Mon 23 Sep 2019 03:21:50 No.10995480 Report

Quoted By:

>>10994349
>academia is all about elitism and competition
Also true

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Anonymous Mon 23 Sep 03:08:10 2019 No.10995440 View Reply Original Report

Quoted By: >>10995478

i forgot arithmetic

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Anonymous Fri 20 Sep 03:33:29 2019 No.10987398 View Reply Original Report

Quoted By: >>10995477

is meditation a meme?
I know there's a lot of research on it, but I'm too dumb to differentiate between good and bad research.
I'd like to know how it affects creativity and anxiety

27 posts omitted

Anonymous

Anonymous Sun 22 Sep 2019 16:03:31 No.10993795 Report

Quoted By: >>10993820

>>10993507
>But after a while, you study those thoughts, not the contents of the thoughts, but the thoughts as a category. How they arise
This sounds pretty advanced. I have been meditating for a while now but I always just watch my thoughts. How do I get into what you described? Care to elaborate on techniques?

Anonymous

Anonymous Sun 22 Sep 2019 16:12:48 No.10993813 Report

Quoted By:

>>10988359
>tinglings
ok faggot

Anonymous

Anonymous Sun 22 Sep 2019 16:18:04 No.10993820 Report

Quoted By:

>>10993795
Its basic Buddhist meditation, but you don't see those in western mindfulness meditation groups due to how it might enroach onto the "soul" territory. The theory is, once you start to see these thoughts as just fleeting moments, you begin to question who "you" really are. In the traditional sense, people say "I'm me, I'm my memories/my body/my name/etc" but we know in science we can change our names, replace body parts, memories through accidents, disorders, etc. People then say "I'm my thoughts, you can't disprove my thoughts." Descarte is a famous example. He claimed because there were thoughts, it proved that "he" or his "self" existed. Now the Buddhist meditation theory suggests there are only thoughts that we attach and hold on to and once we see these thoughts as fleeting/not who "you" are, then we get a sense of "selflessness" or "we are one" feeling that many people describe, sometimes via drugs and sometimes via power experiences (seeing the Saturn V rocket fly people to moon) and sometimes via meditation. This relates to the buddhist notion of "impermanence." You can see how it erodes the idea of "soul"/"self" that people hold dear, either casually or via religious reasoning.

The technique is basically vipassana (insight) meditation . The "insight" is as described above. Now that's not all there is, there are then various levels of insight that Buddhist mediators have logged, various "Jhana" states.

However you'd probably need an advanced Buddhist mediator to guide you which is not readily accessible due to the fact that most of western mindfulness is basically McMindfulness dojos that mainly trawls the surface content.

Anonymous

Anonymous Mon 23 Sep 2019 01:50:49 No.10995319 Report

Quoted By:

Bump, still waiting for someone to actually provide links to some research

Anonymous

Anonymous Mon 23 Sep 2019 03:21:03 No.10995477 Report

Quoted By:

>>10987398
I had an amazing meditation experience once when I was going through a lot of anxiety/stress. Nobody would believe it though.

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/sfg/ Spaceflight General

Anonymous Sun 22 Sep 04:32:16 2019 No.10992807 View Reply Last 50 Original Report

Quoted By:

*laughs in superchad lift edition*

>>10989763

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Anonymous

Anonymous Mon 23 Sep 2019 03:13:36 No.10995455 Report

Quoted By: >>10995463

>>10995442
You could have an open-cycle gas core NTR first stage where fissioning uranium vapor is injected along with a liquid propellant into a berylium or halfnium reflecting "combustion" chamber, substantial fission fragments are expelled as a component of the rocket's exhaust by design.

Anonymous

Anonymous Mon 23 Sep 2019 03:14:17 No.10995459 Report

Quoted By: >>10995463

>>10995442
>atmospheric NTR first stage with solid boosters devoloped by communist China

Anonymous

Anonymous Mon 23 Sep 2019 03:16:13 No.10995463 Report

Quoted By: >>10995475

>>10995455
>>10995459
An expendable first stage open cycle NTR, designed to be launched from a Chinese inland space poet and landing "eh, somewhere downrange". With SRBs.

Anonymous

Anonymous Mon 23 Sep 2019 03:18:19 No.10995470 Report

Quoted By:

>>10995430
IIRC the plan for these engines would be to have multiple redundant pumps running in parallel at a fraction of their max power, so that if one failed the others would pick up the slack almost instantly and prevent a meltdown.

Anonymous

Anonymous Mon 23 Sep 2019 03:20:07 No.10995475 Report

Quoted By:

>>10995463
Nuclear SRBs, saturate the conventional solid fuel and oxidizer mix with near-critical fission material and a moderator, make the combustion chamber SRB out of halfnium or berylium. It will turn your SRBs into very short lived but enormously powerful atomic fireworks.

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Anonymous Sun 22 Sep 16:38:23 2019 No.10993869 View Reply Original Report

Quoted By: >>10995263 >>10995391

I solved it, guise

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Anonymous

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Anonymous Mon 23 Sep 2019 01:13:36 No.10995263 Report

Quoted By:

>>10993869
does this mean math is solved now?

Anonymous

Anonymous Mon 23 Sep 2019 02:34:09 No.10995391 Report

Quoted By: >>10995402

>>10993869
aight yt boy, this is how you really do it:
$ \frac{a}{0} = \alpha \\ \frac{a}{0}*\frac{b}{b} = \alpha \\ \lim_{b \to \infty} \frac{a*b}{0*b} = \alpha \\ \text{This results in the indeterminate form}~\frac{\infty}{0} \text{therefore I summon L'Hôpital's rule, derivating WRT a} \\ \lim_{b \to \infty} \frac{b}{0} = \alpha \\ \text{Still of the same indeterminate form, so I derivate again WRT a} \\ \lim_{b \to \infty} \frac{0}{0} = \alpha \\ \text{According to the identity property of division, any number divided by itself equals one} \\ \therefore \alpha = 1 = \frac{a}{0} \\ \text {QVOD ERAT DEMONSTRANDUM} $

Anonymous

Anonymous Mon 23 Sep 2019 02:44:23 No.10995402 Report

Quoted By:

>>10995391
You had me until that last bit. Even algebra teachers will tell students that 0/0 is undefined.

Anonymous

Anonymous Mon 23 Sep 2019 02:51:40 No.10995414 Report

Quoted By:

P=NP
N=1 or P=0
Where's my fields medal?

Anonymous

Anonymous Mon 23 Sep 2019 03:19:17 No.10995473 Report

Quoted By:

great thread

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Water vapour emissions?

Sex boosts testosterone?

When will human cloning become legal and affordable?

CSfag here

Manipulation/Control of Gravity

Does anyone here actually do science?

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