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/sci/ Science & Math

Threads added between 2013/07/03 and 2013/07/10

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Most viewed threads in this category

26 more posts in this thread. [Missing image file: 31ESrmEz0-L._SL500_AA300_.jpg]
How does /sci/ like Spivak's calculus 4th edition?
1 more posts in this thread. [Missing image file: 1342212633916.jpg]
Does light have mass?
27 more posts in this thread. [Missing image file: 67089_sucking-up-earth_7hqdjmj4am3d(...).jpg]
There's a lot of fighting between fields on this website. Why not decide on a group of significant subjects based on a usefulness criteria instead of a 'lol I think it's difficult/easy' criteria. Say, if the planet was in danger from an unavoidable catastrophe like stellar instability or the patriarchy. A suitable question would be: "If we had to evacuate the planet and start anew, which fields would be essential for producing a starship, moving off-world and build a new civilization on a distant planet?" Naturally, this gives an immediate idea of what fields are actually useful to us. Engineers of all kinds, Pilots, Medical staff, Biologists/botanists Womens studies majors Industrial scientists/engineers and so on. I think this might be a good model for really looking at which people are useful to society.
13 more posts in this thread. [Missing image file: Dispersion_prism.jpg]
Can someone help me understand refraction? i've looked at some explanations online and most of them talk about the light being continually absorbed and reemitted, which takes time, reducing the light's average speed. but don't atoms only absorb photons of certain energies and not others? surely this would mean that different materials would only refract certain frequencies of light - but this doesn't happen. why not?
4 more posts in this thread. [Missing image file: Untitled.png]
Well folks, I need the very best site for articles and studies
24 more posts in this thread. [Missing image file: Hayley the Turtle.jpg]
Is overpopulation a problem we should start working on any time soon? I know we could probably make much more efficient use of land, but that would involve an overall reduction in the quality of life for the average person (smaller living space being the primary concern). Is it possible to achieve a stable population, or do we need growth - especially considering the improvements in medicine keeping people alive longer and requiring a greater younger population to look after the older people. Or do we perpetually need growth? Is it something we just have to accept until society can no longer function the way it does? Also, does EK still post here? I always wanted to mouthfuck her.
63 more posts in this thread. [Missing image file: LSAAngle.jpg]
Ask a UC Berkeley Neurobiology major anything! Maybe you're considering applying here, maybe you are interested in learning more about it... whatever. I have been drinking a bit tonight, and just feel like hanging out and hopefully helping you guys. Here are some things about me: >Senior in the Molecular & Cell Biology department with an emphasis in Neurobiology >Transfer student who took a couple years off prior to returning to school >Considering PhD programs in computational and biophysical neuroscience programs (but I might just sell out and go to med school) >I work in a systems neuro lab that studies the barrel cortex (in mice) >I have a 3.98 GPA and am in the running for valedictorian pic is where I work
42 more posts in this thread. [Missing image file: 008.jpg]
Ok sci, you guys are really smart So I want to commission a replica buster sword from Final Fantasy VII Crisis Core the length from pommel to tip is 5"9 inches the width is 1 foot and the depth is 1.5 inches I want the sword to be weldable so it need to weight 20 lbs max What metals/alloys would allow for the sword to be within this weight range also I dont care if the sword is hollow, to achieve this weight range, so long as it wont break
8 more posts in this thread. [Missing image file: 1370843464956.jpg]
Why are we so lazy? Today when I woke up, I spent almost an hour laying in bed thinking about a girl. Is laziness something in itself, or is it the result of some "lack?"
1 more posts in this thread. [Missing image file: perfoct.gif]
What's a simple tool for drawing polygons by connecting points described by 3D point vectors? Pic related, I want to draw simple 3D models of pyramids made out of combined triangles and a base plane.

Physics textbook and video series recommendations

6 more posts in this thread. [Missing image file: Physics.jpg]
>tl;dr pls recommend the best physics textbook and video series I'm learning physics I'm in the last year of high school (18 btw, pls don't ban me) My textbook is awful It's full of mistakes It's explanations are awful They use poor notation (for example, not once do they use arrows over vector symbols, and they never seem to use subscripts, and sometimes their formulas appear to have errors in printing) I've been watching Khan Academy videos, and while they sometimes explain things very well, at other times he seems to fumble around and leave out formulas. I tried watching the first few MIT physics lectures. While I already understood the concepts they were teaching, I found his explanations needlessly convoluted and complicated. So, can anyone recommend the best physics video series and textbooks? I've checked the sticky, but there are just so many options that it's hard to decide
2 more posts in this thread. [Missing image file: 1-Danish_Military_Police.jpg]
I know this may not be the place for it, but does /sci/ have any experience in the military? Whether it be mandatory enlistment or voluntary, would you guys mind sharing your experiences?

pdf

0 more posts in this thread. [Missing image file: 9780273752011.jpg]
Hi, guys, maybe it's not related topic, but I need a little bit of help... If someone could find me link for pdf Book: E-Business & E-Commerce Management, 5th edition by: Dave Chaffey Need to do paper for my exam so I'm running low on time... Thx
5 more posts in this thread. [Missing image file: url.jpg]
How neon signs work? What can colors generate?
13 more posts in this thread. [Missing image file: themfeels.jpg]
I got a B in a general chemistryI class at my university even after the prof dropped the lowest exam grade(we had 3) along with homework grades. Should I just give up now as a chemistry major =(
5 more posts in this thread. [Missing image file: muh-singularity.jpg]
uh... you guys know the singularity has already started, right. we inside of that big hairy bitch right now. see the attached pic and let me know if any questions.

Class Schedules

0 more posts in this thread. [Missing image file: Screen Shot 2013-07-10 at 2.24.26 PM.png]
post 'em if ya got 'em >inb4 pre-reqs
6 more posts in this thread. [Missing image file: 530429_401171529911210_5466811_n.jpg]
>1^0=0 >multiply both sides by 2 >(2*1)^0=2*1 >2^0=2 >1=2
17 more posts in this thread. [Missing image file: IMG_0251.jpg]
how the fuck do you solve for X? X+3 3 ____ = __ X-2 2 i got multiplying denominators but i cant seem to figure it out, easy shit most likely for you guys but thank you in advance..
8 more posts in this thread. [Missing image file: 4ch2an.gif]
What is the attractive force between two H atoms in free space from the unfilled 's' orbital in each? I figured there must be such a force, however small, because H prefers to become H2. Over some scale, a force must arise to make the atoms come together, no?






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