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/sci/ Science & Math

Threads added between 2012/09/12 and 2012/09/19

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Most viewed threads in this category

25 more posts in this thread. [Missing image file: volume_vs_mass.jpg]
If there was zero error in the experiment, how many points would be on the line? (meaning if the equation for the points was created). I'm thinking that ALL points will be on that line, but I feel like this is a tricky question. The other option is that "there will always be some points that do not go through the line even if there is zero error" I know that in real life nothing is perfect but the question seems to ask about a theoretical situation. What do you guys think?
6 more posts in this thread. [Missing image file: wade.jpg]
Anyone has this book in pdf? An Introduction to Analysis by Wade
90 more posts in this thread. [Missing image file: 1317238786087.jpg]
Two Words: Fuck. Matlab. What asshole made CS a requirement and then told everyone in that class to go fuck themselves....
10 more posts in this thread. [Missing image file: 1330616756020.jpg]
Why do your testicles go chilled after ejaculation?
6 more posts in this thread. [Missing image file: 1338634591372.jpg]
5.74*10^17 electrons flow through a wire in 250 ms. What is the current in amperes?
4 more posts in this thread. [Missing image file: wallpaper-388561.png]
So , what does /sci/ think about the "chematica" ? http://phys.org/news/2012-08-google-steroids-scientists-chemical-brain.html
0 more posts in this thread. [Missing image file: physics.jpg]
Let's see if Sci can do grade 12 physics. A box weighing 450N is hanging from two chains attached to an overhead beam at angle of 70 and 78 to the horizontal.....find the tension forces

Spivak 4th edition PDF

11 more posts in this thread. [Missing image file: 31ESrmEz0-L._SL500_AA300_[1].jpg]
anyone got a pdf of spivak's calculus 4th edition?

Why is integration hard?

0 more posts in this thread. [Missing image file: 1344223423625.png]
As I sit here struggling with yet another awful integral from the sinister mind of John David Jackson, I'm led to wonder: Why is integration so much harder than differentiation? I'm struck by the fact that if my integral contained some mystery function u(x) in the integrand, I would be able to make next to no progress on the integral -- yet if I were differentiating this same function, I could apply the usual chain rule and separate out the dependence on the mystery function, to be inserted later when the mystery function is known. But you can't do the same for an integral, because even slightly different mystery functions will produce wildly different integrals. The same also is true, but to a lesser extent, for the operation pair of multiplication and division; many simplifications of products are possible, few of which are enlightening to apply to quotients. Here the notation is a contributing factor; writing quotients as fractions puts the numerator and denominator on equal footing, when in fact they're very different from each other. But addition and subtraction don't exhibit this difficulty: it's just as easy to subtract as it is to add. The same goes for exponentiation and taking a logarithm; both are of roughly equal difficulty. So what is it that makes one operation of an inverse operation pair so much harder than the other, and in particular, why is integration so annoyingly difficult?
2 more posts in this thread. [Missing image file: 1335382197691.png]
If a colourblind person got his cones fixed, would he discover a colour he couldn't image?
10 more posts in this thread. [Missing image file: 1345655788307.jpg]
As men and women of knowledge and science, I imagine many of you are going through or have gone through an existential crisis in your lifetime. My question to you is, what are you or have you used to deal with it?
7 more posts in this thread. [Missing image file: sleepcycles.gif]
http://www.stevepavlina.com/blog/2005/10/polyphasic-sleep/ Does this work? Do I need to be able to fall asleep quickly, or will that happen naturally? How much do I need to change in my life if I want to try this? Just seems too good to be true for me, I can't into sleep cycle stuff so I was wondering if you guys had any information on it.
3 more posts in this thread. [Missing image file: 1335167687949.jpg]
I have a theory; the details of it are unimportant. How do I submit this theory for peer review? My ultimate goal is to attempt to win a Nobel prize, but I do not know where to start. This theory relates to the relationship between gravity, dark matter, and the universe. I believe it to be rather groundbreaking.
2 more posts in this thread. [Missing image file: spit_coffee-s576x416-126987.png]
>Alzheimer's is really just 'type-3' diabetes
6 more posts in this thread. [Missing image file: 1343133143576.jpg]
>Prove yourselves mathfags. Been breaking my head over >this for most of the day. The square array given below uses each of the digits 1 through 9: 192 384 576 The second row is twice the first row and the third row is three times the first row. There are three other ways to rearrange the digits to do this. You can use each digit one time only. Find them and explain which solution strategy you have used to solve this problem.

STEM punch lines

26 more posts in this thread. [Missing image file: spherical chicken.jpg]
But it only works for spherical chickens in a vacuum.
2 more posts in this thread. [Missing image file: 3673105608_1218f737a1.jpg]
>tfw humans discovered your species I am no longer a hipster owl monkey.
34 more posts in this thread. [Missing image file: 1346389075817.gif]
Why do scientists waste their time studying the universe instead of trying to figure out what's beyond it?

mankind complains

6 more posts in this thread. [Missing image file: mankind3.jpg]
Would you like a cup of complain about human nature?
17 more posts in this thread. [Missing image file: wooh.jpg]
You have just been sent back in time 1000 years, you can share all of your knowledge of science and technology with the world, how much more advanced is the world? HOW WELL DID YOU SUCCEED?

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