Archived threads in /sci/ - Science & Math - 1382. page

There's hidden risks. Because of chaos theory you might create the next Hitler after an amount of time due to sitting.

>>8336933
Ergonomy is broscience.
Just get a good chair. It's not like you have a job that involves standing up and talking to people or being outside anyway.

>>8336933
Depends, but if you're active outside of work (strong back&core, cardio etc) then you'll be fine.

Obviously they accidentally leaked evidence of aliens or that the mars landings are fake! There is no way this could be shadows/small rocks like every other time!

Also, it's a huge government conspiracy where they will kill anyone who knows, so how are you alive OP?

>>8336859
Did Mark Whatney make it out yet?

>>8336859
Kind of does look like a plant.

Kind of also looks like a mess of DCT quantization artifacts around something with hard edges.

Seriously, why are we still using lossy compression? Especially jpeg. What the fucking fuck you fucks, fuck you.

Fuck all of you.

How the fuck is he even going to drink that

>>8336832
The beer wouldn't even be liquid. It would boil in the vacuum as soon as opened.

>>8336864
No it would freeze.

>>8336749
Reported to the police

>>8336749
this:

>>8336749
A sizable amount of pain and regret before

>>8336722
Would you be doing two-body orbits, or are you looking for the general case of three or more bodies?

If the latter, there is no general analytical solution for predicting these orbits; what you'll need to do is simulate gravitation (Newtonian will suffice) and tick it forwards numerically. A very simple approximator for this is not hard to do - for each point, find the distance and direction vector to each other point, use this distance and the mass of the other body to find the acceleration vector, add up the acceleration vectors from every other point, use the acceleration to update that point's velocity, and use the velocity to update that point's position. Repeat for every mass, tick forwards one step, and repeat.

This is the simplest, dumbest possible way to do it; there are more clever ways, although tin the general case they all revolve around the fundamental method of numerically integrating approximations to the equations of motion. (This simple constant-time-per-tick Euler's-method approximation will fail to precisely conserve energy and thus tend towards long-term instability, and will go nuts if things start going too fast or get too close to one another, and is generally okay but not great.)

>>8336722
I think this would be a good idea for an A-Level coursework project, especially if you demonstrate an understanding of numerical integration, as >>8337193 hints at the importance of.

What language do you intend to write it in? If you use something high-level like python or julia (personal recommendation from me), you will have incredibly simple access to very robust and stable numerical integration algorithms, usually only requiring one or two lines to set up and compute with.

Keep us updated!

>>8337193
>using an object's position and momentum to predict motion
>not using 2 positions and integrating over all possible paths

everyone laugh at the determinist

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>>8336717

>>8336727
Sorry. I know that a random mutation can bring something new to the table, but the individual has to be lucky enough to procreate for the mutation to carry on. And it has to be a useful one too.

>>8336717
Its original purpose likely was not to attract prey.
It might have started as a little bit of extra sensitivity to water movements near its mouth. Imagine that it evolves a whisker type of thing on it's snout that helps it sense movement(prey) better. That evolves larger to sense movement even better. Some freak variations later it gets a little bit glowy. The glowy-ness may outweigh the benefits of sensing. The glowy-ness gets more adapted towards while the sensing becomes vestigial. And everyone lived happily ever after. The End. Thanks for Watching!

depends on the density of the 100kg block

>>8336691
Most people have a hard time staying more than a minute under water, and water pressure would be forcing their lungs to empty out a bit before they got crushed. They'd drown.

Now, a trained freediver, they can go for 3 or 4 minutes, and they go pretty damn near deep as the human body can tolerate. They'd get crushed.

>>8336711
It's lead, mister dubs.

>>8336673
Step 1: did you pay attention in precalc?
Step 2:if yes, then congratz, ur probably gonna get an A
Step 2a: if no, then go down to your nearest supermarket, buy a cucumber and vaseline, and start practicing anal

>>8336673
>I've done some big boy research of my own and it seems like it's just 2 concepts, derivatives and integrals
Convergence and continuity hence topology. If you study some topology (say from Munkres) everything gets a lot more easy.

You are pretty much right. Its not hard and the main things are derivatives and integrals.

They did this a few times on Stargate Atlantis. One of those episodes even has bill nye and neil degrasse tyson.

https://www.youtube.com/watch?v=Me3-r5rsUSI

>>8336699
Came here to post this.

I don't think the second law of thermodynamics accounts for matter being pulled in from other universes, just the matter in ours.

>>8336579
>Khan academy
>decent

That's where you went wrong.

>>8336599
Yeah im noticing Khan Academy is shit. I need other sites or maybe i should stick with textbooks.

>>8336612
>>8336599
What's so shit about it? I'm using it for math shit and HTML/CSS.

Was planning on looking into the science and stuff.

>>8336547
grant money

>>8336547
> needing your hand held in grad school.
I mean you're suppose to start being more self-sufficient, knowing how to learn the stuff you need to learn.
Other grad students have been the best resource in my experience.

>>8336555
There's a difference between hand holding and being completely unwilling to meet with your students.

>>8336504
No.

>>8336504
d u h
u d h
h d u

>>8336504
Yes.

>>8336367
The AC turbine seems to be fairly viable

>>8336367
a bunch of his stuff is still classified material

Tesla is the crowned king of meme science.

The few actual contributions he made to society were just continuing the work of previous scientists. That's completely fine, of course, because successive collaboration is the foundation of scientific progress, but he doesn't deserve the idiotic amounts of praise that get heaped on him. He was also a pathological liar. Read through his notebooks: they're filled to the brim of elaborate descriptions of experiments he clearly never did and wild claims of his abilities, like his "I built a tiny earthquake device that almost leveled a city" bullshit or his "I could split the world in half in an instant if I wanted" horseshit. For every real contribution he made, there are ninety nine pure fabrications.

So why is so fucking popular? Because he appeals to both science-worshipping autistics and scientifically-illiterate idiots, both of whom are highly active on the internet. The former group likes him because he's everything they aspire to be — single-minded, asexual, completely devoted to science, unable to communicate or interactive with others, etc. — and also because people like that absolutely live for contrarianism. They'll desperately cling to anything that makes them seem smarter than the average person ("oh you think edison is important?"). The latter group likes him because he spent 90% of his time sitting around making heaps of vague statements about energy and vibration that sound 2deep4me, but have no actual meaning whatsoever. Through the constant barrage of shitty memes about him, anybody in the middle ground who spends time on the internet gets so much exposure that they start to like him, too.

Fuck Tesla and fuck the idiots who would suck his dick if he hadn't chopped it off so he could focus on his pseudoscience.

>>8336307
>what is sci-hub

>>8336307
Use sci-hub, or email the authors.

>>8336312
>email the authors
>email profs too
They don't usually respond if they do your waiting atleast a month

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latex

>>8336210
>le rare pepe

>>>/reddit/

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>>8336229
>le anti-frogposting
>>>/lgbt/