If Law of conservation of energy states that Energy can neither be created nor be destroyed. Big Bang needs energy doesn't it?
2006-06-06 22:39:49 · 9 answers · asked by cryptsymbolxxx 1 in Science & Mathematics ➔ Astronomy & Space
I believe in a comparitively new but very popular theory that Universe creation and destruction are cyclic in nature. Its like the BIG BANG, then BIG CRUNCH, then BIG BANG again and so on.... The energy for the newest big bang event (the one studied by Edwin Hubble), came from the previous big crunch. The Cosmic Microwave Background, when studied suggests that the radiation at the denser parts of the universe are heavily red shifted. This is an evidence in support of energy being 'old'.
2006-06-06 23:42:53 · answer #1 · answered by know it all 3 · 2⤊ 3⤋
One current viewpoint is that the state of having nothing is of higher energy than the state of having something. When the high energy vacuum decays into a state having matter, mass-energy conservation is maintained.
So why is the vacuum a high energy state? Well, by quantum mechanics, there should be a continual flux of particle-antiparticle pairs at all times. Suppression of this effect (so there is literally nothing) takes energy. This is the energy from which matter ultimately comes.
The other main possibility is that there was a 'Big Crunch' before the Big Bang. Certain recent calculations based on quantum theories of gravity suggest this could have happened. See
http://www.sciencedaily.com/releases/2006/05/060515232747.htm
2006-06-07 03:27:22 · answer #2 · answered by mathematician 7 · 0⤊ 0⤋
Well good question,The universe bagan with the big bang because due to big bang the universe is still expanding.You said that energy can neither be created nor be destroyed,this theory is correct but the nuclear reaction in the big bang caused it to boom and explode and hence the universe got formed.
2006-06-07 00:30:54 · answer #3 · answered by rock star 2 · 0⤊ 0⤋
The laws of physics as we know it can not be used at the instance of the big bang. And the energy just existed. And then, BANG! Here we are.
2006-06-07 00:32:23 · answer #4 · answered by si_marmota 3 · 0⤊ 0⤋
Energy within our universe can neither be etc ..... The energy for the big bang was from an external source.
2006-06-06 22:45:50 · answer #5 · answered by djoldgeezer 7 · 0⤊ 0⤋
Well, prior to big bang there was a huge (not infinite) ammount of matter in an infinatly small universe. So if you use E=mc^2 you can derive that huge mass * c^2 which is a lot of energy!
So the principle of concervation still stands.
2006-06-06 23:38:44 · answer #6 · answered by Ilya R 2 · 0⤊ 0⤋
I think there was a big crunch. They say that all galaxies are moving away from an apparent center. Yet they are slowing down, not moving as fast as before. I think eventually, everything slows down. Then it starts moving back to center. Then it crunches again, then it bangs again.
Like a Yo-Yo
2006-06-07 03:45:56 · answer #7 · answered by Clinton G 2 · 0⤊ 0⤋
Well it actually could not begin with a big bang...
With out air there is no sound...
with out oxigen there is no explosion
so in reality it had to be a quiet bump in the dark...
2006-06-06 23:51:18 · answer #8 · answered by Anonymous · 0⤊ 0⤋
no its just something that explodes and gives off rock then the rocks join together with gravity and form planets
2006-06-07 01:27:33 · answer #9 · answered by aston04 3 · 0⤊ 0⤋