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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?
14 more posts in this thread. [Missing image file: goku.jpg]
im not sure if this is the right place to ask this question, but...is there a subject that you can't fully learn by urself using the internet and books? What i mean by that, that requires skills and creativity, like art.
8 more posts in this thread. [Missing image file: 1373354248734.gif]
How do I become a genius, /sci/?

Good Student Feels

9 more posts in this thread. [Missing image file: 1371422981262.jpg]
>tfw you get a problem right on the very first try
5 more posts in this thread. [Missing image file: halflife-hugh-laurie.jpg]
If some herbs heal certain illnesses, it is often written off as placebo effect. But if the herb is effective in doing what it was claimed to and consistently produced a placebo effect, why object to the herb on the grounds of it being placebo. People want to to get fixed and if placebos do it why not?
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
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.
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?
28 more posts in this thread. [Missing image file: Why do they always send the poor, w(...).jpg]
Where do I buy paper books? In the physical world, not ordering them off of Amazon... Cheap, likely used books. Where do I go about acquiring them. >inb4 ebooks, pirate pdfs I hate ebooks. Nothing will ever be as good as paper books.

Psychology Thread

2 more posts in this thread. [Missing image file: melvin.png]
https://dl.dropboxusercontent.com/u/182368464/2013-brant.pdf IQ predicts many measures of life success, as well as trajectories of brain development. Prolonged cortical thickening observed in individuals with high IQ might reflect an extended period of synaptogenesis and high environmental sensitivity or plasticity. We tested this hypothesis by examining the timing of changes in the magnitude of genetic and environmental influences on IQ as a function of IQ score. We found that individuals with high IQ show high environmental influence on IQ into adolescence (resembling younger children), whereas individuals with low IQ show high heritability of IQ in adolescence (resembling adults), a pattern consistent with an extended sensitive period for intellectual development in more-intelligent individuals. The pattern held across a cross-sectional sample of almost 11,000 twin pairs and a longitudinal sample of twins, biological siblings, and adoptive siblings.






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