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/sci/ Science & Math

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Most viewed threads in this category

103 more posts in this thread. [Missing image file: ]
How does it feel knowing that we just gave an arbitrary number to a sum that should equal infinity? I've never seen the amount of stupidity from Mathematicians, an equation that gives a certain sequence is just accepted and said, well you know what? It works for all numbers but 1. Let's use it, it must be right! Prove to me otherwise that 1+2+3... =/= Infinity, without the Riemann Zeta Function

Levels of thinking... How do you solve problems like this one?

7 more posts in this thread. [Missing image file: ]
>Man in Black: All right. Where is the poison? The battle of wits has begun. It ends when you decide and we both drink, and find out who is right... and who is dead. >Vizzini: But it's so simple. All I have to do is divine from what I know of you: are you the sort of man who would put the poison into his own goblet or his enemy's? Now, a clever man would put the poison into his own goblet, because he would know that only a great fool would reach for what he was given. I am not a great fool, so I can clearly not choose the wine in front of you. But you must have known I was not a great fool, you would have counted on it, so I can clearly not choose the wine in front of me. ... >Vizzini: You'd like to think that, wouldn't you? You've beaten my giant, which means you're exceptionally strong, so you could've put the poison in your own goblet, trusting on your strength to save you, so I can clearly not choose the wine in front of you. But, you've also bested my Spaniard, which means you must have studied, and in studying you must have learned that man is mortal, so you would have put the poison as far from yourself as possible, so I can clearly not choose the wine in front of me. >Man in Black: You're trying to trick me into giving away something. It won't work. ... >Vizzini: You only think I guessed wrong! That's what's so funny! I switched glasses when your back was turned! Ha ha! You fool! You fell victim to one of the classic blunders - The most famous of which is "never get involved in a land war in Asia" - but only slightly less well-known is this: "Never go in against a Sicilian when death is on the line"! Ha ha ha ha ha ha ha! Ha ha ha ha ha ha ha! Ha ha ha... >Vizzini: [Vizzini stops suddenly, his smile frozen on his face and falls to the ground dead] >Buttercup: And to think, all that time it was your cup that was poisoned. >Man in Black: They were both poisoned. I spent the last few years building up an immunity to iocane powder. Well?
35 more posts in this thread. [Missing image file: ]
should some things be forbidden to discuss in science? is it right to destroy someone's career because their opinion on a subject that has not been allowed to research is controversial?
23 more posts in this thread. [Missing image file: ]
Why does /sci/ hate TV physicists?
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Hey /sci/, would you know how hard it would be to smash in a helmet (or visor) with just using a rock on the moon? Would I be better throwing it? It would be possible to swing with full force as long as I keep my feet grounded right?

About Relativity:

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What exactly does relativity implicate in terms of a moving object's speed effecting how much time the object is experiencing? What exactly would happen in terms of total time when an object traveling near another object's vicinity moved so much faster that there would be a noticeable difference between times experienced by the objects? Do regions of space essentially lag behind others due to differing scales of time? Are there such "trails" or "pockets" of time floating about within the totality of time? Can the totality of time be calculated exactly, as in, do we have an exact method of exactly expressing the direct relationships between times of relatively moving objects? And how locally? How much is the galaxy moving us per unit of time rotationally and also the movement of this galaxy in space, the galaxy cluster, etc.? What actually is the ultimate level of comparison? Do we know the farthest out there that is possible or are we at best shortsightedly observing from here on Earth? If more of the latter, then is it so that we can't inspect the totality of time at all?
9 more posts in this thread. [Missing image file: ]
What experiment can I do to test the hypothesis that I am a human?

About vision

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How does the brain project our vision into existence? Into what kind of virtual space? Out of what kind of energy does the brain extract the resources needed for rendering? Is our vision of some type of basic "render substrate" which the brain molds into whatever is seen? How much is our visual rendering of electric nature? Is our vision drawn by electrons? Is our vision essentially floating in a virtual nowhere?

antibacterial fabric?

15 more posts in this thread. [Missing image file: ]
Hey guys, So I bought an object that contains a particular fabric that says "coolmax(tm) antibacterial washable fabric". Assuming that it isn't some sort of scam, Could anyone explain what sort of trickery this is? If there is any antibacterial substance on it, wouldn't it just get washed out? Does the fabric itself somehow disrupt bacteria (and if so, how would it affect the structurally different cell walls of g+ and g- bacteria??) or am I missing something?
45 more posts in this thread. [Missing image file: ]
tDCS, or transcranial direct current stimulation in full, is \underline{\bf BULLSHIT}. You can all stop frying your brain with DC stimulator now. It's a hype. It doesn't work. http://www.sciencedirect.com/science/article/pii/S0028393214004394
6 more posts in this thread. [Missing image file: ]
What difference is there between applied and pure maths substantially? How are they thaught? And what difference is there in teaching either pure or applied maths in a university and a institute of technology (polytechnic) I'm Swiss and thinking about whether studying at ETHZ or a standart uni
32 more posts in this thread. [Missing image file: ]
/sci/co/ thread what is the best science comic and why is it smbc?

Impression

3 more posts in this thread. [Missing image file: ]
/sci/, is there a good way, or a trick to make people remember me? What I mean is, how do I manage to strike someone, to leave a mark, an imprint in their mind?
119 more posts in this thread. [Missing image file: ]
How many of you were in the gifted program when you were in elementary-high school? We had something called GATE here, which I was not a part of. All I can remember is that they got to do arts and crafts after school and they gave a little show at the end of the year. I was wondering about this because I had a few friends who were at the top of their class when they were younger, and they did pretty well maybe up until the end of high school and even calc 2 was too much for them so they do business or something now. I was talking to a professor about this and he said that a lot of the brighter students he went to university with ended up with what he calls "normal guy jobs".

Shrooms

9 more posts in this thread. [Missing image file: ]
I remember a while back, someone on /sci/ claimed that taking psilocibyn-rich mushrooms helped him understand his subjects better. Have you ever taken shrooms, /sci/? Did it help you?
11 more posts in this thread. [Missing image file: ]
If a black hole's gravitational pull is infinite why aren't we being pulled into one right now?
3 more posts in this thread. [Missing image file: ]
Dear /sci/, I've always admired math from afar and I think it's a beautiful and complex way of portraying reality in (sometimes) exact terms, but I've always been a little afraid of it. I excelled at drawing and reading in school but, math requires logic and structure. Is it possible to self-teach math? I didn't like high school classes because none of them really explained why things worked, it was more 'plug this into your calculator and you have the answer'. I'm sorry for the long OP, but I really do want to learn, and the sticky links to a place that starts in calculus, where I'd like to lay a stronger foundation before moving on up. Any methods, links or methods of learning that you've personally employed would be greatly appreciated.
8 more posts in this thread. [Missing image file: ]
firs time on this board and I hope my question isn't too low-brow for you guys. does dreaming at night automatically mean that I was REM sleeping? I know you can't always remember if you were dreaming but interestingly most of the time I can't remember it I also feel very tired and unfocused over the following day which I thought might be because of lack of REM sleep
48 more posts in this thread. [Missing image file: ]
ITT: Explain Quantum Chromodynamics and String Theory to someone who has never taken a physics class

Anthropology Biology Genetics Race

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Will /sci/ teach me about the science of human races? Does this concept apply? Does the historical notion of the 4 or 5 or 10 or whatever races hold up? Are races social constructs? I'll assume behavior is some mix of nature and nurture, does IQ relate significantly more to one or the other? Anyone that answers should include at least one source per post, because a lot of this can seem reasonable to say but isn't actually accurate.






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