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/sci/ Science & Math

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Most viewed threads in this category

Stupid Questions Thread

24 more posts in this thread. [Missing image file: 1390191861813.jpg]
Didn't see a stupid questions thread... So how about a stupid questions thread? I'll start (obviously, that's why I made this thread) \frac{\partial \rho V_1}{\partial t} = -\frac{\partial \vec{u} \rho V_1}{\partial x} + D\frac{\partial^2 \rho V_1}{\partial x^2} So say I have the mass conservation (1-D) equation above, rho is density of a fluid, V_1 is a fraction of some volume filled with the fluid. If the fluid is incompressible the entire last term (the 2nd derivative one) can go away, correct?
1 more posts in this thread. [Missing image file: MSChromatogram.gif]
How does qualitative MS work? I know that in quantitative you compare an analyte to a known concentration of the same molecule with isotopes in it to get a relative abundance. Do you calculate the peaks based on isotopic abundance (M+1) to figure out the composition of the molecule? If that is correct, are there other ways?

Name the Ailment

10 more posts in this thread. [Missing image file: eyeeater.jpg]
Hello there /sci/. I wasn't sure this was the right board to ask this, but since it is about science I guess, and you guys are by far the smartest board I decided to take a shot. So this is the thing: ever since I was young, I have this thing I can do. Anytime of the day, if I had something to eat until 4 or so hours prior, I can contract my esophagus and make the food come back into my mouth. This is totally voluntarily (also, pretty gross). Can any of you tell me if this thing has a name? I've asked a couple of doctors and they had no clue, and while searching on the internet all I get is GERD but that's clearly not it. Am I the only one that can do this? Is this my useless superpower?
18 more posts in this thread. [Missing image file: college room.jpg]
>http://www.npr.org/blogs/thetwo-way/2014/02/04/271648691/watch-the-creationism-vs-evolution-debate-bill-nye-and-ken-ham Americans: why? Why do you consider this to be "science"? Why would any culturally advanced country even think about having a debate on such topic? Why a debate in the first place, since what-you-consider-to-be-science is based upon critical thought, abstraction and proofs? I believe it's appaling. I managed to watch the first 20 minutes of the debate, then I was about to smash my keyboard against the wall so I stopped; but really is this what science has come to? Are we still allowed to call it "science"? From what I could see (this is not the first debate I had the unfortune to watch), you turned it into a series of jokes and a bunch of trivial, hackneyed stale sentences. It's no more who comes up with the best proof, it's no more who KNOWS the subject to its core: instead, it's who seems more appealing to the general (and, as such, ignorant) public who makes his/her way into the big universe of pop-sci stars. Panem et circenses, Romans used to say, and they were right: science lost all its value because someone deicided it's "cool" and therefore it has to be lovely prepared to be fed to culture-hungry teenagers.. Sure, we are lucky and we know better sources for our knowledge, but when I confront myself with the sad fact that many many many people believe to know something about "science", whereas they know SHIT, I feel as if they are raping my beautiful world. To all the people who intentionally turned knowledge and, as a result, wisdom, into a consensus-eating beast, I say: FUCK YOU. >pic unrelated, but gives me the feels so why not
23 more posts in this thread. [Missing image file: Spock,_2265.jpg]
/sci/, it's /lgbt/, I need your help. My boyfriend's mad at me for suggesting that if the infinite multiverse ideas of possibilities exist, that there would be a universe where we were both, (or just one of us was) straight. Is there some science thing I could point to get my point across better? That we could be straight despite the 'being born with it' thing? Please help me I don't want to lose him.

Job Oppurtunities for BSc

51 more posts in this thread. [Missing image file: IMG_20131101_123226.jpg]
What kind of job oppurtunities are there for someone graduating with a BSc in Physics? I'd like to work for at least a year to pay off undergrad loans before attempting grad school. >Pic not related, on my mobile
17 more posts in this thread. [Missing image file: bleuhabanero.jpg]
Since posting to sci is fairly slow, because this board is dying of cancer, at what rate, and for what duration, would a troll have to post nonsense to this board before no one would ever intentionally visit it again?

Average Male Penis Size

6 more posts in this thread. [Missing image file: image.jpg]
I have read that the average penis size is about 12 cm and circumference being about 4 inch is this true? on the internet everybody seems to have at least 8 or 9 inch is it possible to have the circumference of a coke can? the rap-singer jay-z is rumored to have such
23 more posts in this thread. [Missing image file: images.jpg]
Is it so far-fetched to believe that humans are the apex of all living organisms in the universe? I mean, why not?
8 more posts in this thread. [Missing image file: Ship.jpg]
Hello all. What is the function of the circled part on ships? Is it some kind of hydrodynamic feature or does it house equipment?
17 more posts in this thread. [Missing image file: The Veritable Clavicles o(...).png]
You should be able to solve this.
12 more posts in this thread. [Missing image file: 1369768591625.jpg]
Why do physicists accomplish so much more than mathematicians? Most of mathematics as we know has been worked out by famous physicists. Like Newton, who invented the integral. Seriously, mathematicians, are you even trying?
157 more posts in this thread. [Missing image file: 20140205_024629.jpg]
Hello men. First of all, sorry for may bad englilsh. i've learned english on the internet so please go easy with me. Today I'm here to explain you the universe, the atom, the prime numbers, the dark law of the exitence. How? Easy, math. This is how I call "Draw of the Universe". Can u see it? I can explain :)

MATH HEROES

7 more posts in this thread. [Missing image file: cauchy.jpg]
Post some bad ass mathematicians /sci/. cauchy up in this motherfucker
49 more posts in this thread. [Missing image file: 1017146_10152152155465155(...).jpg]
yeah thanks for nothing GMO haters.

The History Channel

18 more posts in this thread. [Missing image file: wutt.jpg]
Anyone here seen the Ancient Aliens show? My dad believes everything they say on that show. And why is Giorgio A. Tsoukalos even allowed to speak?
73 more posts in this thread. [Missing image file: Fisheye_Grid_by_nikolaip.jpg]
/sci/, you know how in euclidean geometry, all triangles' angles add up to 180 degrees? I think I can construct a geometry which follows the parallel postulate, but whose triangles always have more than 180 degrees. Please correct me now if that's not true, before I start writing this novel. This picture really does say a 1000 words, but I can prove it too (although it might take some time putting it into words).
21 more posts in this thread. [Missing image file: 20744_1279520462781_900969_n.jpg]
just wondering if there are any peer reviewed scholarly articles out there that suggest that homosexuality is in fact determined by genes and is a choice. i found about a bagillion articles stating it is determined by genes but would like to read one that argues the opposite side of the debate. TLDR: help me find a scientific article saying sexual orientation is NOT determined by genes

BLACKJACK

4 more posts in this thread. [Missing image file: fdgdfgdgfd.png]
So far I've only seen martingale strategy simulators which don't 'withdraw' the current winnings to the bank. I would tend to do this once I've made the equivelant of my min + min+1iteration...etc till the table limit. This is usually 6 iterations. Can someone demonstrate the probabilities associated with this variation of the strategy.
9 more posts in this thread. [Missing image file: mushroom man.jpg]
>Have a bachelors degree in Politics and International Relations >My dream has always been to be an astrophysicist or astronaut. >Straight A student in high school including higher level math and physics courses >All (astro)physics jobs need at least bachelors degree in STEM field. >Can't get a masters degree because my bachelors was in social science >Will I ever reach my dream of becoming an astrophysicist or astronaut? ;_;






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