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Archived threads in /sci/ - Science & Math - 546. page

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When did u realize that aether actually exists?
23 posts and 3 images submitted.
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>>8894896
back to /x/ faggot
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why does donald trump have herpes and how does he get a close shave
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>>8894917
might as well since science is pretty much a modern day religion normie

Does /sci/ think asteroid mining is feasible and if not why not?
83 posts and 10 images submitted.
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>is it feasible to mine resources that are more easily accessible on Earth
yes, why not
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Nothing could be easier than mining shit on Earth
Asteroid mining is a meme, that won't happen
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>>8893873
Yes, but only for use in space

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The science just doesn't agree, let's see why:

>LM has the computing power of a wristwatch
>several thousand pounds of thrust can't even make a small hole in the lunar surface
>Van Allen belt radiation levels would have fried the astronauts
>LM cooking in the sun for several days, somehow the closed system that was the LM didnt heat up to lethal levels

If you believe the moon landings were legit you are the equivalent of a creationist.
326 posts and 35 images submitted.
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This sounds wrong, but I don't know enough about engineering to tell you why.
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>>8888029
I can say that you are wrong about Van Allen belt radiation, they planned an orbit that passed through the less radioactive zone, moreover this radiation is dangerous only after a very long time (many days or even months) spent in it and apollo astronauts stayed something like one hour (i can't remember exactly) in the less radioactive zone of Van Allen belt.
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Radiations = instantly fried is brainlet reasoning

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A Finnish professor, doctor and former WHO expert on the effects of alcohol on the human body, claims you can drink a bottle of wine a day without adverse effects.

This are the main studies he cites to back up his claim:

http://www.perfectdrinking.com/wp-content/uploads/sites/4/2014/02/Excerpt1.pdf


How much of this is true? It seems excessive.
21 posts and 1 images submitted.
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Certainly not true for everyone, wine dries out my sinuses like crazy.

But for the average human, I could see it. That's a lot of calories though.
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>>8898519

How can it dry out your sinuses? Is it only wine or any other type of alcohol? Genuinely curious.


Yeah and the calories are "empty" as well. It just seemed excessive in terms of cancer risk, liver cirrhosis.
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>>8898513
That is pretty much the norm in most of Europe and many places in Asia also. I don't get why burgers are so afraid of moderate alcohol use.

It's like you think there are only two ways to handle alcohol; full blown alcoholism or complete abstaining

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I'm only successful because I can't live with myself losing to women who go to schools like Harvard and Stanford who in the past I met think they're better than me.
15 posts and 3 images submitted.
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i like engineering, that motivates me.
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>>8898418
Which engineering?
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Desire to know more about math and become a proficient mage

If I elevate my hands, my fingers get REALLY cold and feel a bit weird. Is this something I should be worried about? Isn't this a sign of a heart problem or something? I'm not a fat fuck either, practically underweight actually.
16 posts and 3 images submitted.
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samefag here. have a bump friend
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>>8898240
Low blood pressure is a possibility
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>>8898240
What happens if you exercise a bit harder, are you short of breath easily? Do you have other problems?

>>8898270
this

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What is the edgiest field of science? What motivates me scientifically is that I want to make animals- specifically dogs and primates- suffer, and observe them as they suffer to death. Currently I am a biochem major taking electives in parasitology and virology. I figure I can get a job somewhere infecting chimps with HIV, prions, etc., or infecting dogs with various worms and flukes. Am I on the right track? What are some other animals of science where I can fulfill my appetite of animal suffering?
12 posts and 1 images submitted.
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>>8897838
Daaaaaaamn family
That is pretty fuckin edgy

You might be better off with biology(?) but animal testing is definitely the way to go
Also psychiatric research on animals might work too
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>>8897838
How about you experiment on yourself instead?
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>>8897838
The field of killing yourself

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Brainlet here.

I’m having problems understanding algebra, specifically, the reasons behind simplifying monomials/polynomials. I feel like all I am doing is memorizing HOW and not WHY. All the material I have seen (including teachers) does not explain why we use the rules. For me this is important because up to this point I really don’t have to remember why I , for example, go backwards on the number line. Or why multiplying a number by it’s decimal point provides the percentage. When it comes to simplifying algebriac fractions I have very little visual reference for figuring out the problems.

Are there some common visual concepts that can help give visual direct to why the rules of solving algebra or am I stuck doing the problems a certain way because “that’s what they tell you to do” ?

>pic unrelated
29 posts and 5 images submitted.
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>>8897796
answering because i like your op image:

short answer is : the same reason you learned multiplication tables. it makes life easier for you in the future so just trust us and learn it.

a slightly longer answer:
"it's required for engineering / math" you need to be able to freely the manipulate expressions into the required form so you can do something useful with it.

half the engineering faggots who fail out of signal processing 101 or electromagnetic fields 101 do so because they suck balls at algebra and can't correctly get the formula into the necessary format to apply their domain transforms.

those same faggots would get triple fucked in any 400+ math course where proving patterns in results sometimes requires some very creative manipulation.
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>>8897848
i was assuming you were asking "why do we learn this shit"

if you're asking "why do these techniques work?" then please post a more specific question
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>>8897855
Thanks anon, this inspired me.

>"why do these techniques work?" then please post a more specific question

Here's one:
Why do we negative numbers cancel when square?

why does -4^2 = 256 and not -256?

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A mysterious object crashes in your backyard. Upon inspecting the object, it is not made of materials known on Earth and you deduce it to be an alien satellite. Inside the device, you find schematics with calculations that seem to be for an FTL communication device. What do you do?
22 posts and 5 images submitted.
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Make a sandwich.
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A mysterious object crashes in my backyard. I call NASA and the police before doing anything.
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>>8897113
>convenient alien derelict space probe that happens to have instructions of FTL travel inscribed on it

I ain't building that shit nigga, it's a hyper-nuke that wipes out humanity so that alien takeover is easy.

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So I just saw Guardians of the Galaxy a couple days ago, it was really cool and I was wondering what /sci/ thought of it.

I thought it was really cool and well thought out.

Sure there are a few things that were impossible like jumping through wormholes and the asian chick who reads minds. But those things are all predicted to be possible by science, we just don't understand how to make the technology yet.

For the most part they stuck to real world physics and explored deep and interesting concepts like the idea of an entire planet having its own consciousness. And most of the details like how the gold Sovereign people use a fleet of drone space fighters instead of flying inside them was super realistic.

What do you guys think about this movies depiction of physics and space battles and how technology will go in the future?
11 posts and 2 images submitted.
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I feel like I'm the only one who didn't think this movie was all that great... People obsessing over Groot, the literally most boring character ever. Hot green human is actually an alien. Like come on.
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>>8897048
They should make a spinoff about the exploits of blue whistling guy. They killed off the most interesting character.
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>>8897060
I completely despise baby groot and groot in general because it's just a fucking marketing ploy.

Can 4chan integrate this?
16 posts and 3 images submitted.
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>>8896784
No
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>>8896784
Sub in tan for x^2 or some shit and then divide by the exponent on the triangles hypotenuse. Did I get this right?
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>>8896784
No because this has a non-elementary integral.

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How long does Cannabis stay in your body?
31 posts and 3 images submitted.
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>>8896246
you mean like for drug tests?

it depends
>how much do you smoke?
>how fat are you?
>how active are you?


obese neckbeards who just sit on 4chan and blaze it can take months to reach undetectable levels.
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>>8896246
30 days
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>>8896246
64.

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Why are non-Western countries still behind on education? Don't they know education is the best investment a nation can make for its future?

Is scientific literacy in the world actually falling?
37 posts and 6 images submitted.
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>>8896047
>education is the best investment a nation can make for its future

Prove it.
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>>8896047
i see a lot of non-western countries that have high literacy rates
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>>8896047
Bad management, obviously.

>>8896056
How is this even a question? Look at China and India for example. One is already an economic superpower, while the other is a borderline dysfunctional shithole.
I know that this isn't causation, but it has been safely demonstrated many times that education is one of the most important factors that help a country grow economically.

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>math is harder than physics
Let's stop this meme. If that was the case, how come top physicists who has genius level intellect struggling with it? At least in math, the field is still progressing, new theorems, guys like Mochizuki etc. In physics, there are guys like Witten who got Fields Medal yet he can't do anthing grounbreaking in his field. It's just to goddamn hard.
21 posts and 2 images submitted.
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> If that was the case, how come top physicists who has genius level intellect struggling with it?
>implying top mathematicians with genius level intellect don't struggle with math too
reminder Fermat's Last Theorem took 350 years to prove
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In math, there is literally an endless amount of things you can study. You can even invent new problems. In physics, you are limited by how many different ways you can coherently describe reality, and you eventually run out, so it's harder to make progress.
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>>8895984

I met Ed Witten when he did a lecture on the Jones Polynomial. He's autistic as fuck...Is this what all Physicists are like?

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I'm trying to discover undefined numbers, but to do this I need to know what problems I would need to solve.
So apart from finding the gradient of a vertical line, what problems occur in mathematics because we can't divide by 0?
14 posts and 1 images submitted.
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0^0 is undefined.
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>>8895957
log 0 is undefined
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>>8895973
I define it as two zero's high fiving

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