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Archived threads in /sci/ - Science & Math - 1315. page

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File: lunar lander schematics.jpg (159KB, 800x1048px) Image search: [Google]
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Can you guys tell me how the lunar lander worked? Here are the schematics.
18 posts and 3 images submitted.
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let me guess you are one of those moon landing denier conspiracy retards right?

Kill yourself and get back to pol.

>>>/pol/
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why did it need so much helium?
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>>8414980
It's used to displace the fuel

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What makes a shit float vs sink?
36 posts and 5 images submitted.
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>>8414767
Density.
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>>8414774
>Destiny
fixed
>>
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>>8414774
Basically this.

Archimedes' Principle, for dummies:
>Shit lands in water
>Some water is displaced
>Water tries to go back
>Applies force to push shit back
>The displaced water has the same volume as the shit.
>The force is equal to the weight of the displaced water.

So, basically, if the shit is denser than the water, the force is too weak to prevent the shit from sinking, and it sinks. On the other hand, if the shit is less dense than the water, it will be forced to move towards the surface of the water (in other words, it floats).

The density of the shit probably depends mostly on your diet and on how well it's been digested, but I'm not exactly an expert on fecal buoyancy. Intuitively, it makes sense to say that "gassy" shit (floofy/full of bubbles/whatever) would be less dense (and thus float well), though. It's essentially how boats work, after all.

Writing a short story.

Tell me about biomedical research in the United States.
My understanding is that the pharmaceutical companies shoulder most of the actual legwork in drug research (with help from government funding). How much research in drug development actually comes from the federal government itself? Thanks.
24 posts and 5 images submitted.
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>My understanding is that the pharmaceutical companies shoulder most of the actual legwork in drug research (with help from government funding).

This is largely accurate, for "pharmaceutical companies" encompasses a vast swath of firms. The process of developing a drug typically runs anywhere from 8 - 15 years, and costs over a billion dollars. Big pharmaceutical companies have the resources that smaller biotech start-ups and universities do not.

>How much research in drug development actually comes from the federal government itself?

Typically, basic research performed is performed at universities and medical schools, funded by the federal government. (This does not always apply, as there are established biotech conglomerates, Genentech most notably, that emphasize R&D.) In the context of drug development, basic research would, hypothetically, serve to identify the genetic and molecular bases of the diseased state, and subsequently "work out" the normal physiology of the biological system and/or biochemical pathways that are erred in disease. At this point, there may be a prominent "target" -- that is, a protein (usually) that is established to drive the disease.

Industry (biotech, big pharma, etc.) and academia can be involved in drug development. If the work is performed in academia, often the PIs will patent the lead compounds and/or platform technology, publish, and either license the technology to industry or spin-off a start-up to develop the therapeutic. This point is where the private sector funds the research.
>>
File: WHY IS HEALTHCARE SO EXPENSIVE.jpg (1MB, 1097x2706px) Image search: [Google]
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I'll just leave this here.

The best thing for America to do is allow a free market in healthcare.

This is the only way we could have someone like elon musk create massive innovation in the healthcare industry.

Free the fucking market
>>
>>8415809

I see. So the US government doesn't have its own 'in-house' labs? There's no NASA or DARPA of biomedical research?

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What's in the night sky, I'm in England and in the Noth/North east I can see something that's moving to slow to be a plane, too fast to be a star, and I think too low to be a space station.
20 posts and 1 images submitted.
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make vidya
>>
>>8414620
>moving to slow to be a plane
it's a plane
>>
>>8414638
It also seems too high

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Were the global warming and smoking threads both deleted?
48 posts and 2 images submitted.
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>>8414529
Yes, both. Some anon complained that "Apparently /sci/ is allowed to be skeptical of global warming, but not something like smoking. Sounds like a double standard." Result: double deletion.
>>
>>8414529
global warming meme is contained within >>>/x/
smoking isn't dangerous meme is contained within >>>/trash/
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>>8414613
now we just need to get rid of that fluoride thread.

File: calculus.jpg (41KB, 425x500px) Image search: [Google]
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I am stuck with this one. How do I become proficient at math?
23 posts and 2 images submitted.
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Riding
>>
stewart isn't terrible, it is just denigrated because sci autists prefer that there were no difference between calculus and analysis courses.
>>
>>8414330
>proficient
You may become good enough at Calculus, certainly not proficient at it, and much less proficient at math.

It's not a bad book. It's not the best one, either. But it's certainly the best for beginners. If you complement it with Schaum's outlines of Calculus, you'll be good.

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Is MIT a meme?
44 posts and 5 images submitted.
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>>8413885
No
>>
>>8413885
Maybe
>>
>>8413886
>t.triggered MIT student

File: whatsthis.png (20KB, 1072x680px) Image search: [Google]
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Help me find this molecule anon

trying to figure out why one of my classmate wrote it in my schoolbook
24 posts and 5 images submitted.
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>>8413367
it's weed
>>
(3S,4S,6R,7S)-6,7-diamino-3-(2,2-dichloroacetyl)-4- (3-ethynylphenyl)-8,8,8-trifluoro-2-iminooctanoic acid

Doesn't seem to be a known structure.
>>
>>8414317
Then why does it have a name?

Checkmate, scientists.

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Microscopy pictures thread
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>>8413365
>>
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>>8413366
>>
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>>8413368

File: devlish pepe.jpg (67KB, 526x400px) Image search: [Google]
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>mfw I give bad advice on Researchgate to sabotage other researchers

Who /devlish/ here?
50 posts and 11 images submitted.
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how do you feel about possibly hindering discoveries someone else would've made that you wouldn't have made anyway?
>>
>>8412237
I think my image sums up my feelings pretty nicely.
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>>8412249
so you have no qualms with stunting scientific progress then? are you only in it for the money?

File: newton.jpg (9KB, 235x328px) Image search: [Google]
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>stole calculus from leibniz
>stole universal graviation from hooke
27 posts and 2 images submitted.
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Newton invented calculus independently of Leibniz...Leibniz notation is superior, but it doesn't change the fact that Newton developed it as well


Hooke had no where near the mathematical talent of Newton to put it in reality
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>>8411045
He was an alchemist as well, which is really funny considering today's cultist science thinks it's baloney
>>
>>8411045
>>stole universal graviation from hooke

citation needed

File: Gennady_Korotkevich.jpg (140KB, 1200x800px) Image search: [Google]
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Hello, /sci/. I have a few questions to ask.

1. How do I get to an expert level in competitive programming? (You can assume I'm a beginner with no previous experience.)

2. What kind of mathematics do I need to excel in programming? (You can also assume I'm learning basic mathematics and I'm in highschool) Pic related is considered a god in competitive programming and he's very good at mathematics.

Thank you.
36 posts and 3 images submitted.
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Read Knuths Art Of Computer Programming (nobody ever finishes) for the math and practice C++ and a scripting language regularly. Then make a github account and read a lot of code

http://www.cplusplus.com/doc/tutorial/
http://cpp.sh/
https://en.wikipedia.org/wiki/The_Art_of_Computer_Programming
>>
>What kind of mathematics do I need to excel in programming?

none
>>
>>8409754
Tbh,
You have to be proficient with Graph Theory and some Calculus, at least.
There'll come a point when its gonna be more than useful

File: animated_time_paradox.gif (254KB, 750x600px) Image search: [Google]
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Ok /sci/entists, we all know you can't divide by zero, but WHY exactly can't you divide by zero? Please no meme answers like "you just can't" or "you can't because the calculator says so".
59 posts and 5 images submitted.
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>>8427155
>but WHY exactly can't you divide by zero?

Because you aren't technically dividing.
>>
You can't divide by zero because humans didn't find any logic in that

Maybe dividing by zero would lead to an infinite result ?
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>>8427155
https://en.wikipedia.org/wiki/Division_by_zero
s@ge

File: Space and Energy.jpg (29KB, 311x345px) Image search: [Google]
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What if particles are not IN space, but there is a binary system. One bit in the grid is either energy or space. So each Planck area is “on” or “off” (the only degree of freedom). If it is on, we call it energy, if it is off, we call it space. In that sense, particles are not points or strings, but combinations of “space” and “energy”.
65 posts and 4 images submitted.
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>>8432461
>planck length is the resolution of space
>mfw
>>
>>8432461
What then is an electric charge
>>
>>8432489
I would say it is the ratio between energy and space. If there is an equal amount of energy and space (red and green) there is no charge.

File: resume critique.png (31KB, 472x591px) Image search: [Google]
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Post your resumes. Give pointers etc
119 posts and 13 images submitted.
>>
>activities from high school on resume
>posting conferences attended
>resume not written in LaTeX for someone that's in a STEM field and should know better
really nigga
>>
>>8430126
>work experience at the end
ghastly

>3.132 GPA
errrfff

>all that black space
huwurrrrrrr......huwurrrrr.....
>>
>>8430126
>society of women engineers

into the trash it goes

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