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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?

Fucking Magnets

10 more posts in this thread. [Missing image file: imafuckingboomerang.jpg]
ok, I'm racking my brain right now about a scene in breaking bad: they drive to an evidence room and want to kill/delete/format the hdd of a laptop. therefore they use a giant electromagnet and create an magnetic field outside of this room. my question is now, what exactly happens? is the whole point to create a magnetic field which is "strong" enough to erase the information on the hdd? did they want to induce a current in the laptop which "burns" the disk? and assuming the walls of this room are out of steel, how exactly does this influence the magnetic field?
26 more posts in this thread. [Missing image file: Fphoto-45469810C-2RM.jpg]
Quick question. Why is Ag2CrO4 insoluble in water? It looks polar as fuck, why isn't it more soluble?
132 more posts in this thread. [Missing image file: image.jpg]
Is this guy just a crock or is he real?

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
4 more posts in this thread. [Missing image file: high_voltage.jpg]
An electron acquires 3.45 x 10-16 J of kinetic energy when it is accelerated by an electric field in a computer monitor from plate A to plate B. what is the potential difference between the plates, and which plate is at the higher potential? I got the voltage no problem, but I thought if it's going from A to B then A would have the higher potential? The answer to part 2 is B... Why's that?
11 more posts in this thread. [Missing image file: 557251_394683717270656_2036480000_n.jpg]
First time posting here on /sci/ Tell me straight off if this is rational or not, but is it possible that theoretical physics or mathematics may not be the only medium to logically understand the universe and how it works. If proven wrong then why are we so fixated on using this medium? Why is it so fundamental?
22 more posts in this thread. [Missing image file: 2012-10-31_00001.jpg]
Need some data for my stats class. In any given week how often do you guys exercise? 4chan has some advantages of having a huge pool of people to talk to, you're contributions are appreciated.
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

Quantum Computing

3 more posts in this thread. [Missing image file: Quantum.jpg]
What field does Quantum Computing fall under? I'm currently majoring in my 2nd year of Electrical Engineering but I am very interested in this field. Am I going on the right path?

Tesseract

15 more posts in this thread. [Missing image file: tesseract.jpg]
I'm curious, what property or part of the hyper-cube make it a 4D shape.
4 more posts in this thread. [Missing image file: red-sky.jpg]
belgium is covered in red sky & glow, why is this captcha world apocalyps
18 more posts in this thread. [Missing image file: venn_diagram.gif]
Need help with the basics of set theory U = {1,2,3,4,5,6 . . .} let U be the set of all positive integers A = {1,4,9,16,25, 36, 49, 64, 81} {x^2 | x ? U /\ x^2 < 100} Why is it that the latter part of the notation has x^2 < 100 and not x^2 <= 81? I understand that 10^2 is 100 and by using your initiative you can deduce that the set A goes up to 9^2 instead but yeah, my question for this one is why not have x^2 <= 81 in the latter of the notation. Second question Using the same example as above: U = {1,2,3,4,5,6 . . .} let U be the set of all positive integers A = {1,4,9,16,25, 36, 49, 64, 81} {x^2 | x ? U /\ x^2 < 100} The first x in the notation just before the such that, | , am I right in assuming that that value refers to the number we are working with in the universe? So if I were to write U = {1, 2, 3, 4, 5, 6, 7} A = {9, 15 } { (x + 2) * 3 | x ? U /\ (x + 2) * 3 < 21} This isn't me asking you guys to do my homework for me just incase it gets to that. I simply need help understand this stuff so I can confidently apply it to other questions.
4 more posts in this thread. [Missing image file: funny-picture-russian-cat-put-me-do(...).jpg]
hey /sci/, dumbfag here. when i woke up this morning the radio said it was foggy with a visibility of less that 100ft. when i looked out the window i estimated i could see about 40ft (really fucking foggy). anyway, from my bathroom i can see all the way to the front door of my house (about 60ft). i was taking a shit when it dawned on me that i had my windows open and i could see all the way to the front door. why didn't it get foggy inside my house if i had the windows open?
16 more posts in this thread. [Missing image file: men-in-black-2.jpg]
So I have this guy at work who has told me the following things: 1. There is water/trees on mars, however they won't let people find out about it because NASA would lose funding. 2. Aliens created him and left him on this planet... BUT will one day return for him. 3. There is a guide that he talks to.. Someone who tells him what to do and has told him the truths behind religion and the world. 4. Something about alien ghosts and possession... I'm really fuzzy on that whole thing. This dude is my boss and isn't screwing with me, he straight believes every word he says and we have had some serious conversations on the topics. He keeps promising me he will bring some evidence and told me I can't find it because it's HIGHLY classified information that only he can get to. ... What is /sci/'s thoughts on this?






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