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/sci/ board - Science & Math - June 2014

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Most viewed threads in this category

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http://www.youtube.com/watch?v=IgCpa1RlSdQ&feature=player_detailpage#t=83 ahahahahah.. ahahahahahahhahaha.. ahahahAHAHAHAHA.HAHAHAHAHHAH
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/sci/, i need to know some quantum mechanics, and i understood until the de Broglie duality wave/particle. But then i got stuck in the Schrodinger equation, i didn't get it. What does it mean? What is the hamiltonian operator? What is the meaning of a wave function? I'm lost. I'm an undergraduate engineer btw, not a physicist, so take it easy pls ;-;.
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I'm really fascinated about images like this, I found it in a new, do you know a computer program that can do that?, or maybe how can I learn to do it?

Inverse laplace

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I have absolutely no idea how to progress.. The are supposed to be solved with a help of inverse laplace table. Someone? Anyone?

Do drug tests screen for corticosteroids

Do drug tests screen for... 6 posts and 0 image replies omitted. Click to view.
I have been using Nasecourt OTC, likely have to take a drug test soon. I know they screen for anabolics but are they also looking for corticos?
What is the most mentally... 32 posts and 0 image replies omitted. Click to view.
What is the most mentally challenging job?
How do I unlock my brain to... 5 posts and 0 image replies omitted. Click to view.
How do I unlock my brain to let me learn and focus better?
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"The Borderline and Narcissist live with such a profound level of core shame, they need to see themselves as perfectly brilliant, talented, beautiful, successful, etc. Their 'affirmations' may episodically override self-loathing, but these defensive strategies are compensatory, which keeps the false-self actively refuting/rejecting the type of help they really need." The tone of most sci posts and posts on 4chan in general should change. Try treatment /sci/entists. I would be better for science too. Keepin' it real.
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So you have drugs which work by increasing the amount of certain neurotransmitters. Cocaine with dopamine for example, and Heroin stimulates opiod receptors. However, all this really does in the long term is reduce receptor expression, so that if you feel more energized when on the drug, for the next few days you will feel less energized. Why not take drugs that have the opposite effect. While you're on them you feel terrible, but the "withdrawal" from these drugs is actually very pleasant. Pic somewhat related as it is about feels, just not emotional ones.

Help me identify this rock

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Any geologists out there able to identify whats in this rock? I found it as a kid from schoolyard and thought it was a ruby becouse of its deep red color. Right now i doubt it but still dont know what it is.
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Serious question. Has science ever really tried to find a functioning way to enlarge the male reproductive organ (aka PENIS) without causing unintended side effects? Is there some research ongoing about the topic? Is the structure of the corpora cavernosa the reason why this is so difficult? >inb4 idiocracy I just want a bigger dong.
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what if black holes are created by aliens using 'particle snapping' to travel long distances? the star has mass, and energy ship has mass, and distance to travel snap the right dimension ahead of the ship, time 'decreases' in a specific direction for a super limited amount of relative time to create energetic "slipstreams" (some scifi word I don't know what else to say) the star would become chemically dysfunctional so quickly when the energy required to stabilize it dissipated that the matter came 'together' so 'quickly' it sort of super-condensed itself. my analogy here as terrible as it is, is that a star is like steam, and a black hole is water.
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>the spirit of archimedes lives in me, I may well be the last great mathematician https://www.filesanywhere.com/ViewPlay/linkViewPlayWrapper.aspx?Path=%5CJOHN_GABRIEL%5CProof%20that%200.999%20not%20equal%201.pdf&MP=&FI=2472207&VT=F&RT=Y&Type=F get a load of this guy
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I bet you can't prove that it's cos. http://www.wolframalpha.com/input/?i=%28sin%28x%29%2Bcos%28x%29%29%2F%28tan%28x%29+%2B+1%29
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Interesting mathematical models. Hey guys, I'm quite sure there are some people here involved in simulation with numerical solving of differential equations. What are the most interesting models you have encountered so far? I'm currently looking around for one that I could use in my Msc thesis - I'll be working on finding optimal control for it. For the sake of practice I've been working with simple ~6 equation models so far that I could either find or create(space maneuvers) but now I'm looking for some inspiration. What are processes in your field of work that are well modeled and interesting to screw around with control? For now my top choice is optimal radiation treatment of cancer. I've been really interested in Osprey-type plane/drone control, but finding a good model of that was so far fruitless.
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So, /sci/, I've been thinking. Cancer reprograms the cells in a body to reproduce cancer cells. The HIV virus does the same with the cells in the immune system. So, in theory, couldn't you analyze the way the brain talks to the body and use that information to send electrical signals to infected cells and basically tell them to stop producing incorrect cells? If not, why?
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Imagine that we have a computer program that produces the conscious awareness of the present moment. Let us assume that every time the program is run a counter is incremented. Let us also assume that the program is encapsulated in an infinite loop. Each time the program is run the computer "wakes up" and asks itself "what is the present value of the loop counter?" The computer reasons that a priori it is equally likely to find itself in any loop with any value of the loop counter. Therefore the prior probability that the loop counter has any particular value n is 1/?=0. But the computer will find that it has some loop counter value. There seems to be a contradiction here. I think the problem is with the assumption that a computer program can produce conscious awareness in the first place. I think this argument shows that any deterministic machine cannot be conscious. Such determinism implies a single-valued time evolution whose (theoretically) infinite extent leads to this zero probability paradox. I believe to avoid this paradox one needs a branching concept of time in the manner of the many-worlds quantum theory in which each branch into an alternate future is only of finite extent. Maybe the brain itself avoids the paradox by exploiting this many-worlds ontology in its operation.
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I'm not a scientist but at least I know how to read academic literature and not watch youtube documentaries for my science news. Why are Americans so fucking retarded when it comes to this? They watch one fucking youtube documentary and think vaccines cause autism. I cannot submit myself to the presence of people so dammed stupid.

ITT: math (geniuses only)

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Hey /sci/ what happens if I multiply 0.000...00123000...3335 by 0.012345...2220000.06666...0001?
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But what means could diamond be produced biochemically? Hypothetically of course.
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