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03-09-2011, 12:31 PM
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#29 | |
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Power Femme
How Do You Identify?:
Cinnamon spiced, caramel colored, power-femme Preferred Pronoun?:
She Relationship Status:
Married to a wonderful horse girl 
Join Date: Oct 2009
Location: Lat: 45.60 Lon: -122.60
Posts: 1,733
Thanks: 1,132
Thanked 6,841 Times in 1,493 Posts
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Quote:
Energy is conserved---meaning that in an isolated system the total energy in that system remains steady over time. Mass is conserved--meaning that in an isolated system, the total mass of the system remains constant. Both linear and angular momentum are conserved--meaning that provided that an object is not effected by another force, it will remain moving in the direction it is going (linear momentum) or spinning as it does (angular momentum). Now, it is true that ALL of the mass of the Universe (less the anti-matter which was annihilated) was in the singularity at the moment just prior to the Big Bang. No energy or mass has been created since that time. The reason I say 'not really' is that matter--as we understand it--didn't even begin to exist until quite a bit AFTER the Big Bang. (around 250,000 years give or take) Before that, the Universe was too hot for atoms to form. After things settled down, sub-atomic particles could live long enough which is why we see, for instance, the CMBR (cosmic microwave background radiation). Cheers Aj
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Proud member of the reality-based community. "People on the side of The People always ended up disappointed, in any case. They found that The People tended not to be grateful or appreciative or forward-thinking or obedient. The People tended to be small-minded and conservative and not very clever and were even distrustful of cleverness. And so, the children of the revolution were faced with the age-old problem: it wasn’t that you had the wrong kind of government, which was obvious, but that you had the wrong kind of people. As soon as you saw people as things to be measured, they didn’t measure up." (Terry Pratchett) |
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