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/sci/ Science & Math

Threads added between 2012/12/05 and 2012/12/12

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Most viewed threads in this category

12 more posts in this thread. [Missing image file: 45345365635.jpg]
Is there any /sci/ence behind eating your own scabs, boogers, or loose/dead skin? And possibly any long term health effects of doing so? Since as long as i can remember i have done everything mentioned above. I'll feel around the inside of my mouth with my tongue and then chew and swallow any loose pieces of skin. I like to bite off any dead skin around my fingers and chew on it for awhile. If i have a scab that's loose i'll pick it and eat it. I also dig around and eat my boogers. Sucks when you get a hair but i find the juicier the better... As gross as it is, i have always been curious about it.
60 more posts in this thread. [Missing image file: bulge.jpg]
Why are straight men sexually attracted to cocks but not to vaginas? What's the evolutionary explanation of this, /sci/?
9 more posts in this thread. [Missing image file: 1198766.jpg]
Any one have a pdf of : Quantum Mechanics Vol. 1 by Claude Cohen Tannoudji can't find it on google.
3 more posts in this thread. [Missing image file: Screen Shot 2012-12-06 at 13.37.59.png]
>Wear no socks >Feel a constant cold breeze, start sneezing and blowing nose every 5 minutes >Put on socks >Feel completely fine and comfortable, no more sneezing HOW DOES SCIENCE EXPLAIN THIS
1 more posts in this thread. [Missing image file: gautamsoman-emprerorsnewmindrogerpe(...).jpg]
Thoughts on this book /sci/?
22 more posts in this thread. [Missing image file: americans in class.png]
Why do Americans clap after the last lecture of the course?
3 more posts in this thread. [Missing image file: fag.png]
Ok so this kid is 100% serious, he recently had a seizure and bit 2 holes through his tongue... Labor is clearly more painful but I lack the scientific facts and can't be bothered to waste x amount of time compiling it just to make him look more stupid than he already is. if anyone have some quick/strong scientific facts would be helpful. Will keep you guys updated
1 more posts in this thread. [Missing image file: 30c561d3-ee96-4cda-b887-e8bcd0e4600f.jpg]
have you seen this movie?
4 more posts in this thread. [Missing image file: 1353604618950.jpg]
Anyone has pdf of this book: For the Love of Physics: From the End of the Rainbow to the Edge Of Time.... by Walter Lewin? Should be a great read in a freetime.
6 more posts in this thread. [Missing image file: the fuck.png]
the fuck do I do with logarithms? Shit /sci i'm confused
0 more posts in this thread. [Missing image file: F7.large.jpg]
sup /sci/ I'm taking my graduate oral exam sometime in the next few months, I'm looking for textbook recommendations. Topics include mol bio, genetics, lipids, biochemistry, etc. Was hoping some of you could provide titles or series that you have personally found to be both detailed and comprehensive. I know there are a lot of books about these topics, but I'm looking for 1st hand experience here. Thanks
8 more posts in this thread. [Missing image file: Bomb_Calorimeter.png]
Help me chemistry, /sci/. The specific heat of silver is .236 J/gC. Assuming no heat loss to the surroundings or container, calculate the final temperature when 100 g Ag at 40 degrees C is immersed in 60g of water [4.184 specific heat] at 10 degrees C. Setting mc?t=mc?t I should be getting the following equation: 100*.236*(40-T_f)=60*4.184*(10T_f) But I can't understand why I need a 10-n at the end instead of just plain 10 degrees Celsius.
4 more posts in this thread. [Missing image file: automata.png]
Any cs majors who took theory of computation? I have the option to take it next semester, but i'm not REALLY sure what it entails, or if/when it's useful.
229 more posts in this thread. [Missing image file: doctor tits.png]
>female scientists respond to accusations that women aren't as good as men in math and science >say that they face discrimination in the industry because they're women >and that they need affirmative action Why can't I hold all this rage? https://www.youtube.com/watch?feature=player_embedded&v=rtZCq83v92s
4 more posts in this thread. [Missing image file: temp.png]
Trying to learn Mathematica. I tried to solve the logistic equation numerically (pic related). Why isn't the plot working?
8 more posts in this thread. [Missing image file: 299423_10151410833854966_1241385857_n.jpg]
hey hey hey, ive been wracking my brain and think it broke. so long story short i'd like help please. so the question is: What is the major product which results when (2R,3S)-2-chloro-3-phenylbutane is treated with sodium methoxide in methanol? i believe that the mechanism for this reaction is EN2, since a strong base is present (methoxide). also EN1 would lead to a methyl shift and sn1 and sn2 wouldnt result in any of the supplied answers (its multiple choice) i went through the problem and have the correct product and only one product can form because there is only one hydrogen to enable anti elimination. the phenyl groups agrees with the h group on the opposing side of the double bond. naturally this leaves the methyl groups in agreement with each other since the butene group is planar. HOWEVER i am told that the answer is (Z)-2-phenyl-2-butene. for this to work the methyl groups in agreement with each other myst take priority over the phenyl group and that doesnt make sense to me. can anyone explain?
0 more posts in this thread. [Missing image file: Double_Sicily_by_HPPD.jpg]
http://www.youtube.com/watch?v=xzTHjlueqFI So what is the chance that we can actually start re-terraforming the deserts of the world (most of them man-made due to shitty agricultural practices for thousands of years on already shit soil) and what effect would it have on climate change? By spreading forest around wouldn't that combat the increasing carbon in the atmosphere by trapping it in trees and the ground?
6 more posts in this thread. [Missing image file: einstein.jpg]
I didn't know where else to post this but.. I have a macbook pro. Just now, i lost control of my mouse and all my programs (on my dock) starting opening up. I freaked the fuck out and shut my laptop, waited a few seconds then opened it again. Wtf happened. Paranoid me thinks someone is using a wireless mouth to fuck with me lol
27 more posts in this thread. [Missing image file: fetal-postion.jpg]
>one more semester left of college >realize I haven't learned anything >the total sum knowledge I've learned over the past four years could be gained by one day of intensive internet research >i guess just studying real hard before the tests then forgetting it all after wasn't that great of strategy after all Holy fuck I'm scared
1 more posts in this thread. [Missing image file: marie.jpg]
Hey sci hypothetical question how many babies would I have to throw off a cliff before they evolved wings and antural selection picked the ones that could fly to safety

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