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/sci/ board - Science & Math - April 2014

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Most viewed threads in this category

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http://www.spiritscienceandmetaphysics.com/humans-do-not-come-from-earth-sunburns-back-pains-and-labour-pains-prove-it-claims-scientist/ mmmk
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https://www.youtube.com/watch?v=pSbdQncOAq0&index=58&list=PLKaMVzmGcqBIxU1cT3-BnRB8IIjsPtwoS
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https://www.youtube.com/watch?v=0Jog5VZde70&list=PLKaMVzmGcqBJmNWlBMAw9hjsfyL11vwEE&index=2
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Easy Logarithmic Math

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Halp plz
How is "knowledge about... 0 posts and 0 image replies omitted. Click to view.
How is "knowledge about x" relevant in epistemology?
Why did hores evoluve to be... 4 posts and 0 image replies omitted. Click to view.
Why did hores evoluve to be sit-on-able!
Daily reminder that Einstein... 9 posts and 0 image replies omitted. Click to view.
Daily reminder that Einstein married his first cousin, whose mother was the sister of Einsteins mother and whose father was the son of a brother of Einsteins grandfather
Hey /sci/,So there's this... 4 posts and 0 image replies omitted. Click to view.
Hey /sci/, So there's this thing about big bang, that's been bugging me for a while. So, for the big bang to happen, there should have been something with immense mass to cause it, right? If the above statement is true, then why didn't it make a huge black hole? If the universe was born from something massive, why didn't it create one colossal black hole instead?
/sci/, what is the best book... 25 posts and 0 image replies omitted. Click to view.
/sci/, what is the best book for getting a firm understanding of algebra? I've had a long term desire to pursue mathematics and while I can follow exercises well enough I stare blankly when it comes to comprehension and/or world problems. So what is a good book that will help me to get a thorough understanding of algebra?
http://www.nbcnewyork.com/news/local/Long-Island-Student-Accepted-All-8-Ivy-League-Schools-Shirley-Kwasi-Enin-253344171.html>first... 20 posts and 0 image replies omitted. Click to view.
http://www.nbcnewyork.com/news/local/Long-Island-Student-Accepted-All-8-Ivy-League-Schools-Shirley-Kwasi-Enin-253344171.html >first generation African immigrant gets accepted into all 8 Ivy League schools >his SAT score was 2,250 how does this make you feel?

UN banning science

UN banning science 46 posts and 0 image replies omitted. Click to view.
So the international criminal court is trying to ban scientific research on whales. Environmentalists have been trying to get in the way of science for years, and it looks like they've managed to win the UN over to their cause. Now the UN is stomping on anyone doing research that the environmentalists don't like. Why does anyone tolerate these people? What should be done about them?
Kind of scared to ask as this... 6 posts and 0 image replies omitted. Click to view.
Kind of scared to ask as this is my first time posting on this board and haven't slept for a few days, but anyway implying the Multiverse theory is true would that mean that there is a Universe out there that does not follow any Natural Laws and nothing could be predicted? Also I don't understand how a universe can have different laws then the laws this universe follows, for example Charles Law, how could the volume of a gas increase if the temperature decreases and vise versa? I don't think I disproved the Multiverse Theory i'm just curious on how this is possible.

Recurrence Relation

Recurrence Relation 15 posts and 0 image replies omitted. Click to view.
I'm trying to get a handle on integration using recurrence relations but I'm having a lot of trouble actually spotting the relationships in the first place. I'm trying to do part b) of this question as practice but I have no idea what the relation is. I've tried adding them together and I don't see anything recognisable at all. Can anyone help with this?
What do you think of... 109 posts and 0 image replies omitted. Click to view.
What do you think of metaphysics?

rocket equation

rocket equation 3 posts and 0 image replies omitted. Click to view.
I am perplexed by the objection to using the derivative of momentum as an expression for net force, as stated in the Wiki article: en.wikipedia.org/wiki/Tsiolkovsky_rocket_equation#Common_misconceptions Using the same notation as Wiki, in the observer's frame of reference, the accelerating force on the expelled propellant is F_a=\frac{dp}{dt}=(v-v_e)\frac{dm}{dt} and the reaction force on the rocket is F_r=\frac{dp}{dt}=m\frac{dv}{dt}+v\frac{dm}{dt} and by Newton's Third (not Second) Law, these are equal and opposite, therefore m\frac{dv}{dt}+v\frac{dm}{dt}=(v-v_e)\frac{dm}{dt} which simplifies to m\frac{dv}{dt}=-v_e\frac{dm}{dt} the same as in the "Derivation" section of the article. Am I missing something?
I know u guys are smart, but... 8 posts and 0 image replies omitted. Click to view.
I know u guys are smart, but can solve this using the integral definition: \int_0^\1 \mathrm{e}^{x}\,\mathrm{d}x
Why do so many of you hate... 10 posts and 0 image replies omitted. Click to view.
Why do so many of you hate Neil deGrasse Tyson? (aside from that he's black of course)
How far do you gents think... 4 posts and 0 image replies omitted. Click to view.
How far do you gents think genetic alteration and controlled evolution will go? Do you think we'll ever see the day's of bio terrorism like in Margaret Atwood's Oryx and Crake? Also, what would be your favourite species?
My friend says the difference... 2 posts and 0 image replies omitted. Click to view.
My friend says the difference between 1 and .9 repeating is an infinitesimal, he relates it to the dx in calculus. How do i explain to him he's wrong and that 1 = .99 repeating? >inb4 he's right
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