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/sci/ Science & Math

Threads added between 2013/05/15 and 2013/05/22

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Most viewed threads in this category

20 more posts in this thread. [Missing image file: image.jpg]
How do I find the limit as x approaches infinity of (x-cos(x))/x? We shouldn't have to use l'hopitals rule but I don't see a way around it being that when I solve this I get the indeterminate form infinity over infinity. Thank you.
3 more posts in this thread. [Missing image file: pleco.jpg]
Why did armored jawless fish died out? This Pleco right here proves that their body plan wasn't shit.
5 more posts in this thread. [Missing image file: 1282021213650.jpg]
So I have to take Calculus 1 for the summer semester, and I'm just using my old textbook. Thing is, there's a high chance the professor is gonna force us to use MyMathLab. Basically, is there a keygen or something for MyMathLab so I don't have to pay $50 for an access code? I'd rather not have to pay such an outrageous price if I can avoid it.
46 more posts in this thread. [Missing image file: entropica.jpg]
What do you guys think of Entropica? It's an AI system that works by trying to maximise the amount of entropy in the system that it's in. For example, when controlling a cart that balances a stick on top, it deduces that if the stick falls off it will never be able to get it back on again, which would reduce the number of potential situations it could be in, therefore decreasing entropy; as it wants to maximise entropy it moves back and forth to balance the stick, without being directly programmed to do so. Pic related. So far there's demos of it learning how to use tools, how to cooperate, how to balance, how to make money on the stocks, etc http://phys.org/news/2013-04-emergence-complex-behaviors-causal-entropic.html

Desert planet and Ice planet next to each other?

10 more posts in this thread. [Missing image file: Vulcan_dies_in_Delta_Vegan_skies.jpg]
I have a little discussion with a friend about the question if a "ice planet" can be this close to a "desert planet" after seeing Star Trek I know that it is Sciene Fiction but nevertheless I would like to hear your opinion on this matter I believe that both planets have more or less the same proximity to the sun and thus the ice planet should be a ocean planet instead since it would be too hot for solid ice.
11 more posts in this thread. [Missing image file: coeff.gif]
How the fuck do I balance chemical equations?
9 more posts in this thread. [Missing image file: Alcubierre drive .jpg]
http://www.gmanetwork.com/news/story/305112/scitech/technology/real-life-warp-drive-may-power-future-spaceships So what do you think guys? Are we gonna experience interstellar space travel in our lifetime?
0 more posts in this thread. [Missing image file: internship-graphic.jpg]
Anyone here had an internship? I'm in the summer before I wrap up undergrad and I'm going to intern with the NYC department of environmental protection (I'm a chem major) at a wastewater treatment plant. I don't really have any idea what I'm going to be doing, though. I hope it doesn't involve sifting through shit water.
1 more posts in this thread. [Missing image file: 76px-Wooden_hourglass_3.jpg]
Browsing /b/ and found a pic with a troll OP but someone there claimed math graduate and after finding the obvious answer of (8/3)x+13 he proceeded to find the inverse function of F(g(x)). Here is the thread; >>>/b/481451187 Did he find the inverse correctly?
2 more posts in this thread. [Missing image file: ku-xlarge.jpg]
First time poster on /sci/ Being trying to look into the one electron universe theory and cant seem to find much about it. Anybody that can inform me a bit more or anything?
1 more posts in this thread. [Missing image file: image.jpg]
I have an additional mathematics exam tomorrow, and have revised for hours but am still fucked, any help or advice?

Extremely Basic Research Proposal

1 more posts in this thread. [Missing image file: 1368521555007.jpg]
Hello /sci/ Professor wants us to write a research proposal in one night, just a hypothesis basically, but he is setting us up for failure, he said he will point out whats wrong with each of them tomorrow. If I had a week I could make a damn near perfect one, but no. He is rather arrogant too. I wanted to do something with hydroponics and hydroponic gardening on a small scale. Variables I could test include the medium in which the plant would be some-what attached to, factors affecting pH, nutrients in the water, the water itself, air being pumped into the water (as in what is in the air), etc. but I have no idea what to do that is completely original (he says if my proposal has been researched before or a similar hypothesis has been made then he will throw out my paper). So I'm stumped and need help. Pls /sci/. Gibe knowladg plos.
5 more posts in this thread. [Missing image file: teacher.jpg]
Has anyone here done a maths pgce? If so how busy were you? I am currently doing an open university degree on the side and am wondering if I will have time for both? Btw that's me in the pic. x
1 more posts in this thread. [Missing image file: carry.png]
this is how it work?
4 more posts in this thread. [Missing image file: big-fat-cat.jpg]
can someone explain how this works? https://www.youtube.com/watch?v=SuU68JRctXQ pic unrelated
1 more posts in this thread. [Missing image file: plasmon.jpg]
Science contest where I had to explain my research in a 3 min video. What do you think? Have any questions? http://www.posterhall.org/igert2013/posters/439

Debate partner.

2 more posts in this thread. [Missing image file: 4581090+_627446b4956625a7020759c92e(...).png]
I know this isn't about any specific part of science and/or maths. But how would one go about acquiring a partner with whom to debate various topics with? All of my friends seem to be incapable of having a proper debate. So if anybody is interested, reply? pic unrelated.
4 more posts in this thread. [Missing image file: 1366609313124.jpg]
im trying to solidify my "algebra" skill. How can i do so? Right now its average..but im having some problems with the big equations with multiple terms and division and simplifying and systems of equations. Just now i got stuck on an algebra step because i didnt realize if you have something like dividing the entire equation by x will remove x from the numerator of a fraction. little shit like that holds me back tl;dr where can i learn the "Rules" of algebra manipulation and simplifying?

Copenhagen Suborbitals

0 more posts in this thread. [Missing image file: sapphire.jpg]
Hey Science, How many people here have heard of Copenhagen Suborbitals? They're a nonprofit organization aiming towards launching a person into space on their own time, budget, manpower and machinery. I personally think they're doing great work, and I can't wait for the day people are building satellites and rockets out of their barns and garages. Rock on, spacepunk. Rock on.
0 more posts in this thread. [Missing image file: CVA.jpg]
I don't ever come to /sci/ and i'm not sure if you guys do anatomy based health science, but i'm looking for help if anyone is willing. I'm a PTA and i'm looking for information on How the body is effected physically and cognitively after a stroke based on what part or parts of the brain are effected. going further than just "oh its a left sided stroke so you'll have right sided hemiparesis" specific sections of the brain being effected leading to specific outcomes.

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