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/sci/ Science & Math

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Most viewed threads in this category

33 more posts in this thread. [Missing image file: rubiks-cube.jpg]
Kinda curious, how many people here can solve a rubiks cube? I know IQ is not an infallible measure of intelligence but I do believe it can somewhat accurately measure your puzzle solving skills. How high of an IQ do you think is required to solve a rubiks cube? Stories?
4 more posts in this thread. [Missing image file: sagan2.jpg]
“In the way that scepticism is sometimes applied to issues of public concern, there is a tendency to belittle, to condescend, to ignore the fact that, deluded or not, supporters of superstition and pseudoscience are human beings with real feelings, who, like the sceptics, are trying to figure out how the world works and what our role in it might be. Their motives are in many cases consonant with science. If their culture has not given them all the tools they need to pursue this great quest, let us temper our criticism with kindness. None of us comes fully equipped.” ? Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark
13 more posts in this thread. [Missing image file: 1349045051122.jpg]
Hey /sci/. I'm a double major in physics and philosophy and I have a presentation due after thanksgiving break, for my philosophy of science class. It is over the "Aesthetics of Science". I would like some input from you guys: >Does science have an art form to it? >Is there a need fore "elegance" in your formulas? >If two theories are under-determined, should we accept the "more elegant" theory? Thank you, I'm looking forward to your responses when I return.

Java

3 more posts in this thread. [Missing image file: jiai.png]
Hey /sci/, I have a little question. In Java, when implementing a button with its actionListener, there's a function called actionPerformed(). Let's say we have a FileChooser and the button opens the file we chose. Now, after we got the file, stuff happens with it (i.e. read contents and do something with them). It seems that all we're doing with the file happens while still inside that actionPerformed(). Here's the question: How can I get the file and call the other functions to work on the file from somewhere else? Example ("file" and "filechooser" are declared outside the method): actionPerformed() { file = filechooser.getFileName(); doStuffWithFile(); } Since we're kind of procedural here, I don't see a way to call doStuffWithFile() from somewhere else at this point. Ideas?
12 more posts in this thread. [Missing image file: 1352342253488.jpg]
hey /sci/ My professor asked me what the annual percentage yield is on an investment that earns 3% compounded monthly was. But im having a hard time calculating it without an initial investment amount

laycurity

1 more posts in this thread. [Missing image file: bank run.jpg]
I've been working on a personal website that is focused on the explanation of securities and various financial instruments. I don't have the skills of a web developer or anything, it's more for information transmission. The attempt is to make concepts like mortgage backed securities and credit default swaps conceptually easier to understand. I'm curious what OPs think, and if you any suggestions about layout/topic/particular subject. www.laycurity.com

college major tier list

13 more posts in this thread. [Missing image file: 1350876980110.jpg]
Top Financial math, accounting, investment banking, actuary studies, mathematics Great Chemical engineering Physics Electrical engineering Computer engineering Computer science Good Mechanical engineering Chemistry Biology Geology Nigga u dumb Any liberal art, fine art, or language Civil engineering

Documentary thread!

24 more posts in this thread. [Missing image file: space_travel.jpg]
Can /sci/ recommend me some documentary films? Preferably on Youtube
1 more posts in this thread. [Missing image file: 208831.jpg]
So I'm looking to pursue a career in Astronomy. For quite some time now the beauty of space has interested me. I'm in my sophomore year of high school taking Precalculus Honors, Chemistry I Honors, AP US History, and English II Honors. I generally get straight A's in all of my classes, so I must ask, where should I head from here? I'm always open to new ways to expand my knowledge, and I'm currently reading a book from the "Great Books:Britannica" on Ptolemy, Copernicus, and Kepler. I've even developed two theories.(the validity of them is yet to be confirmed, but it's still a start) What extracurricular things can I do to ready myself for studying and later keeping a job in the field of Astronomy?
0 more posts in this thread. [Missing image file: itsatriangleyo.gif]
Guys, I be stumped. Prove: If ([x,y,z]) is a primitive pythagorean triple, then 12|xy and 60|xyz. x, y, z fit into the pythagorean formula as you would expect. We know: x = 2st, y = s^2 - t^2, z = s^2 + t^2, s > t, (s,t) = 1, s and t have opposite parity. (s and t are integers greater than 0) Prof says use division algorithm and consider remainders when dividing by 3, 4, and 5. I still have no idea.

nok

2 more posts in this thread. [Missing image file: IMAG0577.jpg]
Yo /sci/ What's my z range?
0 more posts in this thread. [Missing image file: cat-hug-5.jpg]
help pls derive tan theta = n2/n1 using snells law im stuck ;/
23 more posts in this thread. [Missing image file: 1349724879886.jpg]
Hi sci, i have a problem converting this: Define T : M2x2(F) --> M2x2(F) by T(A)= At. Compute [T]?. the answer is a 4x4 matrix. Now when i plug in the 4 elements of the standard basis i end up with four 2x2 matrices.. How can i convert them into columns?

Related Rates

3 more posts in this thread. [Missing image file: 158.jpg]
ITT: 4chan teaches me related rates (please?) So, I've got me a nice Khan academy video here: http://www.youtube.com/watch?v=xmgk8_l3lig but I got lost when he said dA/dt = dA/dr * dr/dt How did he get there from A=?r^2? /sci/ related wallpaper for your time
2 more posts in this thread. [Missing image file: math.jpg]
how do i become good at math , i have hard time study math. any good tip and advice for me ???
6 more posts in this thread. [Missing image file: 0082MR0595020000E1_DXXX.jpg]
Does that rock in the centre look like it has fossil raindrops on it to anyone else?
7 more posts in this thread. [Missing image file: 1353506044738.png]
Hey guys /tv/ here with a question Does taking Cyanide actually do this?
2 more posts in this thread. [Missing image file: grabfalsevault.png]
False Vault of Sky Explained by the Glass - Inverted Earth http://www.youtube.com/watch?v=lFXqIVXvrkg
6 more posts in this thread. [Missing image file: dynomite.jpg]
I think i'm addicted to nasal spray. What can I do to keep my nose less dry?
2 more posts in this thread. [Missing image file: intelligentdesign.jpg]
Intelligent design proponents claim that design can be inferred in living systems from irreducible complexity, the idea that there are systems comprised of interdependent parts and cannot be deconstructed. I can't think of a better example of such things evolving than Lenski's E. coli. The ability to metabolize citrate in aerobic conditions was developed and could be repeated in his samples but only after a certain generation. The fact that it can only be repeated after roughly the 18,000th generation means that it was the result of multiple and complimentary mutations. This means it's possible to remove a later mutation and the prior mutation it works from in the earlier populations can still be selected for and kept. This shows evolution in a stepwise manner, stacking multiple mutations to ultimately confer one function. http://www.newscientist.com/article/dn14094-bacteria-make-major-evolutionary-shift-in-the-lab.html






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