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/sci/ board - Science & Math - October 2014

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Most viewed threads in this category

https://plus.google.com/b/117792622303339309704/communities/102866082473296606623

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As a response for those posts

torricelli's law

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Hey. I'm working on a math project and need some help with Torricelli's law. I need to figure out a way to drain a tank which is a cylindrical tank on top of a conical tank. (see pic) lets say cylinder base=cone base=Rcy=Rcn respectively. Cylinder height=Hcy. Cone Height=Hcn. Drain hole at the bottom = D. And I need to figure out the time it takes for the tank to drain. I'm not looking for you to solve it or give me an equation. I just need a web site or a video that will show me the way of going about doing this problem.
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> Starting Mech. E. degree and Physics Is this a good combo, /sci/? Pic unrelated

painkillers

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Oxycodone opioid agonist. M 05 52 (Oxycodone 5 mg) Picture related. Could someone briefly explain how this drug kills pain? Also, the more you take the better you should feel? (Not at once, over time because it is an opiod agonist.) Is this the cause of its high level of abuse? Could the pill be bitten to release all of it's pain killing ability at once?

reanimation of frozen animals

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Can animals freeze solid, thaw and re-animate? YES. How do they do it? Not completely sure. If you want to learn more, come Ask Me Anything on reddit today (Oct 29th) at 1 PM Eastern US time, or check out our crowdfunding website: https://experiment.com/projects/unlock-the-secrets-of-animals-that-survive-freezing
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When will the persecution of Dr. Hovind end? https://www.youtube.com/playlist?list=PL126FC84AA7438000
Why is my hair brown, armpit... 3 posts and 0 image replies omitted. Click to view.
Why is my hair brown, armpit hair brown, facial hair blonde, chest hair brown, pubic hair red?
So /sci/, why is it so damn... 18 posts and 0 image replies omitted. Click to view.
So /sci/, why is it so damn easy to design nuclear weapons? Like seriously, 14 year old me understood critical mas and gun type fission weapons pretty well. Are world governments really that relaxed about it because the manufacturing is so complicated? Or am I a fucking idiot for not realizing how complicated sliding one bit of u-235 on to another one really fast, to cause a 16 kiloton explosion, really is?
http://www.braingle.com/mind/iq/convert.php?year=3&satm=680&satv=750&grev=&greq=&calculate=Calculate+IQWhen... 22 posts and 0 image replies omitted. Click to view.
http://www.braingle.com/mind/iq/convert.php?year=3&satm=680&satv=750&grev=&greq=&calculate=Calculate+IQ When I convert what I scored on my SATs, my IQ becomes higher than when I was tested by psychologists. The psychology testing was done before I took the SATs and I was quite a bit younger. It was either in the high 120s or the low 130s. The SAT scores convert to a 145 IQ which an entire std. deviation higher. Which one should I trust?

Could we reach Pluto in a life time?

Could we reach Pluto in a life... 8 posts and 0 image replies omitted. Click to view.
Could space exploration ever be aided by an astronaut willing to give his own life? You could set the ship on it's course, fill it with food and let the ship carry on until the inhabitant dies. This doesn't necessarily have to take place over a short space of time, the process could take years. The amount of knowledge you could gain from a spaceman immersing himself in deep space could be phenomenal. Imagine being the furthest any man has ever been from planet Earth. What if the astronaut was a pregnant woman? You could keep it going for another generation. She could teach her son how to navigate the ship by herself, and she would take care of his food while he's a kid. Or maybe more? You could have a teenage girl on board who will wait to procreate when the son of the pregnant astronaut reaches sexual maturity, thus getting pregnant and bringing on a third generation of suicidal astronauts. Plus, you get all that sweet MILF space sex. Pic related, it's space.

sad stori

sad stori 0 posts and 0 image replies omitted. Click to view.
were wer u wen strng thery waz creat? >sitin ad hume >ged kal frum feignmann >strng theri is crete >no >yes >but wat if strng theiri is nut creete? >Is crete >twist bigr dan spase tiem.
hump day funny 0 posts and 0 image replies omitted. Click to view.
hump day funny

noko

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I've always loved space, and am thinking about getting a telescope for some casual observations. Can anyone point me in the right direction for a beginner's telescope? Perhaps even include some sample images? tl:dr: Best beginner's telescope

Directional Acoustic Drill??

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Making a directional acoustic drill, anyone know anything about them!
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Can we use teratomas as a source of transplantable organs?

sci guide lacks

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hey /sci/ the chemistry guide from the sticky is kind of broken. is there another place i could go to get this stuff explained as clear as whats there does? i'm having a hard time getting stoichiometry problems right. if there were maybe some kind of interactive flash file?
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>there are people who think the United States government was not heavily involved in the attacks of September 11th
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Hey /sci/. I just started undergrad research at my uni and I need a little help finding some information. My professor wants me to find some physical identifiers for liquid crystal phase transitions, and i'm having trouble finding any. I can watch the transition videos on youtube and stuff, but I have no clue what's going on. Pic kinda related I guess
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I have a question related to tangent planes. It wants me to find points on a graph where the tangent plane is parallel to a given function. How would I go about doing that? Specifically: Find the points on the graph z=xy^3 + 8y^{-1} where the tangent plane is parallel to 2x+7y+2z=0 What approach would I use? I know that the tangent plane = f(a,b)*f_x(a,b)(x-a) + f_y(a,b)(y-b) but I don't know what a and b are so I'm kind of lost.

Proof writing tips/critique

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Let's have a thread about proof writing (as in, the final product, assuming the proof is correct). What are some things that irk you about badly written proofs? What are some things you have found helpful in writing proofs?
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