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/sci/ Science & Math

Threads added between 2013/01/16 and 2013/01/23

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Most viewed threads in this category

14 more posts in this thread. [Missing image file: hornet.jpg]
I think I have less muscle control on one side of my face I can curl my lip in one direction on one side and not the other it's a tiny difference, but it's noticeable to me I don't want to be a hypochondriac about it, but I can't think of any reason for it other than a brain problem the rest of the internet wants to tell me I had a stroke, but I'm 19 and healthy
6 more posts in this thread. [Missing image file: aw.jpg]
Can someone help me through this please step by step? An elastic bone is compressed 10 ?m by a student’s weight. The student picks up a very heavy backpack and the same bone compresses by an extra 5 ?m. (a) How many times heavier or lighter is the student than her backpack? (b) How much more potential energy is stored in the compressed bone with the backpack on than without

it contained no amphetamines or 'common' illegal stimulants oranalogues but...

5 more posts in this thread. [Missing image file: Untitled.png]
since having some once legal party pill i have never been able to feel..well..not sleepy. what do? it's so hard to do crap. even with tripple shot coffee I barely feel it , or lollies, it's pretty good and not lethargic feeling but it's never quite there. I don't even eat crap generally, so it's not diet.
4 more posts in this thread. [Missing image file: Carl_Sagan_Holding_Head.jpg]
>Be in chemistry class. >Teacher is talking about radical reactions. >Class is almost over. >I've read the chapter already and am bored >AlphaAsFuck.png >He starts talking about saturated fats. >Shows how radicals can fuck up processes. >Class ends early. >I go to stand up and have a rock hard erection. >MFW >Guy next to me notices and stares at is and I move my bag to cover it up. >20,000 Kd polymer falls from my labcoat. Does this happen to anyone else?
4 more posts in this thread. [Missing image file: mth173FEreviewq1.jpg]
So after a year off of school I'm getting back into it. Starting small with 1 class this semester. In calc2 so trying to brushen up on my Calc so I'm doing this calc1 FE review. First problem gave me problems. Is there another way to do this problem or is the way I did it right? Just do some random variables and plug and chug?
13 more posts in this thread. [Missing image file: 1350731964436.jpg]
Is being able to calculate 217*312 in your mind good? Or just average?
36 more posts in this thread. [Missing image file: choices.jpg]
s there anyone here with a great memory? If so, how do you memorize things or what cool things can you do? I memorized Pi to the 100th digit using some technique. I'm still a beginner but I'm curious how good some people here might be. Be it naturally or trained.
3 more posts in this thread. [Missing image file: 2.jpg]
Hai /sci/ Time for a not-so-real science: Statistics! I've been wondering, what distribution do you get if you take a normal distribution with parameters µ and ?2, but with µ and ? being selected from a standard normal distribution?
7 more posts in this thread. [Missing image file: DNA.jpg]
Hi guys Whats the difference between a duplication and an insertion?
14 more posts in this thread. [Missing image file: Carl_Friedrich_Gauss.jpg]
Everybody knows that the Continuum hypothesis can neither be proven nor disproven thanks to the works of mainly Godel (And later, Cohen). But the proof assumes man made axioms... Why did we conclude that Continuum is indeed infallible and not conclude that set theory doesn't rest on good assumptions (i.e. Bad axioms)? I mean, I'm sure there is good reason for it to be accepted but what is the reason?
5 more posts in this thread. [Missing image file: 1358856841723.jpg]
Point P has 1st order constructive interference. Two speakers emit soundwaves at 440hz. What is the sound velocity in the room? Use the distances shown.
4 more posts in this thread. [Missing image file: john-cusack.jpg]
Hey guys. I need some help, I got assignment to write some paper about fiddler 2, it's a web debbuger, somewhat similar to wireshark. Anyway, could you help me with some reviews or critiques about it? Here's the link: http://www.fiddler2.com/fiddler2/ /g/ was no so helpful, you're my only hope.
4 more posts in this thread. [Missing image file: universe.jpg]
Hi /sci/ I am to hold a three minute speech about a phenomenon in physics. I need your help to come up with something interesting, or at least in giving me inspiration. So please, post your interesting topics regarding physics and I will research them more thoroughly.
12 more posts in this thread. [Missing image file: weredinofucked.png]
/sci/, I need help: I just kissed a girl in the cheek twice, who may or may not be some sort of hooker. I am afraid I might get some sort of STD like Herpes or HPV. What are my chances of having any (or both) of them?
21 more posts in this thread. [Missing image file: antimatter.png]
There were a few threads about the past social welfare causing "reverse evolution," and we debated on here. Can I get some of the links that you guys posted?

Perpetual Flight of High Altitude Platform

36 more posts in this thread. [Missing image file: bug.jpg]
GET IN HERE YOU CRAZY MAD-SCIENTIST BASTARDS! Currently have two different (***Otherwise)perpetual flight designs to attempt to implement. From the communities standpoint, which method would be more reliable, and overall better to use. Completely Solar or HHO Generation+Fuel-cell(or solar). Collection of the H2O would be achieved by using alternating super-hydrophobic & super-hydrophobic containers which would then feed the HHO generator through an electrolysis process thus feeding the main balloon envelope, and supplying hydrogen to the micro fuel-cell on-board to power devices or the HHO generator itself(Thin film solar cells can substitute or supplement this stage). Communications systems: give me your ideas. 2.4Ghz/5Ghz Tracking Line of sight 900Mhz Tracking Line of sight Satellite(iridium, public etc..) HAM(APRS perhaps) Other peoples designs http://www.instructables.com/id/Arduino-Radio-Controlled-Hydrogen-Blimp/ Got a bunch more related links to post if there is sufficient interest ***If it doesn't get shot down or fail in any other way, for any other reason.

Math Problem

4 more posts in this thread. [Missing image file: 484px-Francis_Bacon.jpg]
Hey /sci/ let a < b < c and suppose that f(x) ? g(x) for a ? b ? c. If lim x?b f(x) = L, and lim x?b g(x) = M, prove that L ? M. I'm starting by asuming L > M to end up with a contradiction like f(x) > g(x), but I don't seem to end up somewhere.

matlab image detecion

1 more posts in this thread. [Missing image file: anTo0.gif]
Yo /b/ Any oldfag that could make an advice, I need to detect an object on a 1280/780 RGB image, it's trapezoidal and black, it stands out from the white background, I need to use one of the methods to *just* see this object, I don't need to statistics i.e. localization, could someone mark a method in Matlab that could do this? I'd prefer some Simulink solution, not a code. GG MU!
4 more posts in this thread. [Missing image file: l.php.png]
a friend of mine sent this to me, and I don't want to appear stupid. /sci/ has the big brain, so will youse asplain it to me so I don't look like a dumbass? thank you.
31 more posts in this thread. [Missing image file: 1356863656330.png]
What kind of laptop should a engineering/physics/astronomy student use for school? Thinkpad? Mac? specifics? budget is <$1000 I asked /g/ but they masturbate over 10 year old thinkpads a bit too much

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