| Person with the last reply: 2014-09-20 20:20:38 |
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¬
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| Person with the last reply: 2014-09-21 11:23:50 |
MysteryManBall
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>_<
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| Person with the last reply: 2014-09-21 15:09:34 |
MysteryManBall
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<_< angey eyez mode
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| Person with the last reply: 2014-09-21 18:48:19 |
MysteryManBall
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Do not listen to him
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| Person with the last reply: 2014-09-21 18:56:25 |
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Connect each pair of geometric vertices of an n-dimensional hypercube to obtain a complete graph on 2^n vertices. Colour each of the edges of this graph either red or blue. What is the smallest value of n for which every such colouring contains at least one single-coloured complete sub-graph on four coplanar vertices?
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| Person with the last reply: 2014-09-21 19:20:02 |
MysteryManBall
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About star fusion ( boring version )
when a star fkrms a cloud , and gets bigger it becomes a star
the protocloud which is the star forming cloud must be above 0.09 solar masses otyerwise it would become a brown dwarf
But it can still fuse duterium (H2) and lithium if it reaches 60 jupiter masses
now about stars
if a star is small , it has a small hydrogen supply and will use it slowly , fusing hydrogen into heliu
once it runs out its becomes a red giant and the core shrinks to fuse carbon
it cannot fuse more becuae it does not have sufficent mass
it explodes into a planetary nebula and a white dwarf is born!
the white dwarf cools down to become a black dwarf
but if a white dwarf is being fed by a poor star , and when it reaches 1.4 solar masses , it may explode into a type 1a supernova
if a star is larger it will fuse all its hydrogen quickly
Hydrogen to helium in a few milion years
heilium to carbon in a few thousand
carbon to oxegen in a few years
oxegen into neon into magnesium in a few months
magnesium to silicon in a few days
silicon into iron in 3-5 days
in order to fuse iron fissio is needed but it will upset the eqwillibrium
so the star collapses and becomes a type 2 supernova
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| Person with the last reply: 2014-09-21 19:54:52 |
MysteryManBall
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Yeah lol
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| Person with the last reply: 2014-09-22 14:47:52 |
MysteryManBall
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Doot
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| Person with the last reply: 2014-09-22 15:47:09 |
MysteryManBall
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want another borimg fact?
Edited 9/22/2014 15:47:25
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