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Archived threads in /sci/ - Science & Math - 196. page


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Can mechanical engineers get a job at nintendo? Who designs the consoles and stuff, they are mechanical engineers right?

What about disney? They have theme park rides, right? Can I get a job at nasa?

What the fuck do mechanical engineers even do? Every single company jobs listing website I go to lists a bunch of jobs for electrical engineering, computer science, even civil engineering, but I hardly ever see a job offering for mechanical engineering
17 posts and 1 images submitted.
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>>8021711
we don't do anything. Mech E is gay. fuck off, we're full.
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>>8021711
You're looking in the wrong places then, mechanical engineers can basically get a job anywhere that requires mechanical design. I know a guy who's a mechE who works at fucking Tiffanys designing jewelry molds. Mechanical engineers don't know shit about electronics above physics II unless they go to grad school
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>>8021724
yeah you are right

it is gay

I'm switching to EECS like any smart interesting heterosexual person would

then i can get a job at nintendo

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When mathematicians say "infinitely many" instead of "infinity" they just sound like pseudo-intellectual retards. So why do it?

Pic unrelated, I know it's dividing by 0. I don't have a related pic.
13 posts and 1 images submitted.
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>>8021674
>there are infinitely many natural numbers
>there are infinity natural numbers
The second sounds retarded, like a school child.
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>>8021674
>not even hiding the division by zero
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>>8021674
Can you give an example or three?

Imagine you do you laundry and then leave your clothes to dry under the sun outside.

After a few hours, you go back there and see that your clothes are dry, as expected.

Question: Water at sea level needs to reach 100 degrees Celsius to evaporate. You know for a fact that the water in your clothes didn't reach that temperature, even though a phase change took place.

What happened?
11 posts and 2 images submitted.
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>>8021456
bump
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>>8021456
jesus fuck are you fucking kidding me
>>8020761
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>>8021470
My question is: if the droplets are gonna dry on their own, why do we need the heat from the sun?

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https://www.youtube.com/watch?v=nq-Cyw9oJ7w
13 posts and 1 images submitted.
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>>8021266
In college and poor
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solar is still a scam

Anyone recommending solar either owns solar companys stock or is paid to shill it
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because i will never buy a house
not that i don't want to - by the time i'm done paying off my loans i'll probably be 55
and possibly dead

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What the FUCK is going on?
21 posts and 2 images submitted.
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It's the exact same principle as a sunspot. The corona is not uniform, and less dense, cooler sections appear darker.
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>>8021498
That "sunspot" is hundreds and hundreds of times larger than the earth.
>>
The sun is about to collapse in on itself, it's happening.

I've been thinking about steam turbines. Obviously we use water because it's so common, but what about using alcohol or even liquid nitrogen? Something with a very low boiling point.

Would that be useful for space applications? I'm trying to think of a solution to the heat dissipation problems in space.

A liquid nitrogen turbine is interesting to think about. I've got no idea if you could condense enough of it for recycling to make it worthwhile at all.
39 posts and 4 images submitted.
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Since you're going to have a lot of heat and compression in a steam engine, using something that's flammable is a bad idea because shit is going to explode
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>>8021238
Doesn't Carnot efficiency stop steam engines from being anymore than 40% efficient or something like that?
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>>8021244

You mean like with piston engines? I think it would be fine. But yea, the point of using chemicals with very low boiling points was to get a turbine that can generate electricity without producing excess temperatures.

>>8021262

I've got no idea.

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Is the person who invented the wheel the smartest person in human history?
35 posts and 4 images submitted.
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Yes, yes he is. :-)
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Take your pedophile cartoons back to >>>/a/.
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No, every rapefugee could've figured that out
In comparison, the humans of our time, even some average dumb guy would be much smarter than a scientist 3000 years ago

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Did the human genome project BTFO the Eugenics movement?
16 posts and 1 images submitted.
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what the fuck happened to the thumbnail?
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>>8021125
random copying mutations
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>>8021125
Interlacing.

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Hello Science.

Is it in any way possible to remove a central nervous system without the host dying? What would one need to even do that?
21 posts and 1 images submitted.
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there's no such thing as a "central nervous system", it's just a leaky abstraction that biologists came up with to roughly characterize some poorly-defined subset of bodily tissues
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>>8020863
No we cannot op
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>>8020863
>Is it in any way possible to remove a central nervous system without the host dying?
No

>What would one need to even do that?
A Djinn that grants wishes

JUST can anyone fucking explain this to me already
I JUST dont get it, WHAT IS WRONG WITH ME
i think im braindamaged it JUST doesnt make any sense to me
13 posts and 2 images submitted.
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btw im talking about exponential functions as a whole
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>>8020773
what is there to explain

they are functions

they grow fast or slow depending on numbers
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>>8020781
desu they all grow pretty fast

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Suppose you have a few droplets of water on a surface in a room with dry air. The water, surface and air are at thermal equilibrium at comfortable 298 K and 1 bar.

By experience we know that the water will eventually evaporate into the air due to vapour pressure. This is, of course, a change in phase, and should require 2257 kJ/kg of energy to happen.

Most often this energy in in the form on heat, and since the water is still, it can't be due to viscous forces either. Heat, of course, is thermal energy moving from a point with higher temperature to a point with lower temperature. No temperature difference, no heat transfer.

The water will evaporate since the surrounding air is dry. The question is: where does the latent heat of vaporization come from?
24 posts and 1 images submitted.
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Any thermodynamics majors around?
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Evaporation =\= phase change. The water does not turn into steam. In fact, no heat (or at least very little) is required at all. What haopens, plainly, is that some molecules may escape from the surface and into the air by sheer chance.
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Evaporation is not a phase change. It's just vaporization occuring at the surface of a liquid.

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Sci im a farce of an undergrad research volunteer, i need help getting info out of this NMR. Usually most of,the NMR problems,ive done for classes they give the formula and stuff, but this os my first realsies NMR. Wtf do i do? What are the steps on how i should approach something like this? The peak with the integration value of 3 is a methyl group coming off an ester, this is suposed to be a fatty acid ester btw
28 posts and 3 images submitted.
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What's an NMR? What does it show and what do you do with it? Concentrations of something in some sample?
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>>8020623
It tells you about the individual environment of protons (Hs) in a molecule
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>>8020572
Just remember, electron-withdrawing groups shift the peaks upfield

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post the greatest scientific minds of our time
77 posts and 25 images submitted.
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>>8020553
>greatest scientific minds of our time
>posts muskman who works engineers to pulp as it

I wish prophet Musk (PBUH) posters would just go back to that place that cannot be mentioned.
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>>8020568
Go back to /x/ you fucking unlearned shit bucket.
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>>8020571
Don't fucking reply to me again unless you're contributing to the thread

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Is this deck in a random order?
38 posts and 3 images submitted.
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lol what no? the cards are in order retard
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>>8020484
In relation to what? The answer is yes and no, but it depends on the relation.
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>>8020484
Define random

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No Pre-Calculus, Calculus I-III, Differential Equations or elementary Linear Algebra questions allowed.
69 posts and 6 images submitted.
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What's the number that looks like an upside-down 6?
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>>8020339
>When you're still in school and divide math by the damn courses you took
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>>8020370
High schoolers just call every class "math." I've noticed a lot of people in college who don't take a lot of math do the same.

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