and what 2 evidence support the theory?
2006-11-15 10:17:18 · 8 answers · asked by ♥™ 4 in Science & Mathematics ➔ Astronomy & Space
i mean for the question whats the big bang theory.
2006-11-15 10:22:07 · update #1
The big bang is the creation of the universe. Scientists have recorded an echo in space, it is the echo of the big bang.
2006-11-15 10:24:38 · answer #1 · answered by Anonymous · 0⤊ 0⤋
The term "The big bang" is a theory that at a certain point there was a time when all the mass and energy (everybody, star and galaxy) was in a space infinitely small and infinitely dense in which a certain large "explosion" happened , Although explosion or bang seems to be the wrong word to use, a sudden incredible expansion would be better (the thing about an explosion is that matter is dispersed evenly which from observation the galaxies are not - therefore a theory is suggested that after an initial "explosion" there was a rapid uniform expansion which supersized minor differences in mass) although i'm getting off topic.
And even up in that paragraph i've made two errors when i said "a certain time" and "a certain place". Einstein famously said "time is relative" which is true , time and space are not separete but make up Space-time , therefore when all the mass was in this infinitly small point there was no time around it. it didn't just pop into being because there was no time to measure before it poped into being. But again i'm getting off track.
The two pieces of evidence that support this are
1) When edwin hubble measured the red shift of other galaxies he noticed that they were all shifted towards the red end of the spectrum, from something called the "doppler effect" we know for a fact that this means galaxies are moving away from us as time goes on. therefore logically it was concluded that should you go back in time the galaxies were closer together. (theres alot more evidence supporting this)
2) A large event , in fact the largest event ever such as the big bang does not merely disapper, one of the main cosmology achievments of the 20th century was the detection of the radiation of the big bang. This radiation is all around us all the time. In the most basic leymans terms i guess you could say the universe is still shaken up from the big bang. (thers also more evidence supporting this)
Stephen Hawking's book "A brief history of time" describes the big bang theory very nicely if your more interested than in just the "basic facts".
2006-11-15 19:35:12 · answer #2 · answered by Robert J.P McGowan 1 · 0⤊ 0⤋
The Big Bang is a prevalent theory about the creation of the universe. It states that at the conception of the univsere, all the energy and mass of the universe were combined to a point. That is to say the mathematical definition of a point. In an explosion, a really, really big one, the universe began in a giant "bang" setting loose all the energy and material that would create everything.
Several other theories exist as well, including theories regarding paralell dimensions and planes of existance coming into contact with each other, and of course, creationism.
2006-11-15 18:53:27 · answer #3 · answered by M 2 · 0⤊ 0⤋
The Big Bang: And GOD Said Pulleth My Finger
2006-11-15 18:25:56 · answer #4 · answered by tx girl 3 · 1⤊ 0⤋
Hi. I'll save the typing : http://www.answers.com/main/ntquery?s=big%20bang%20theory&gwp=16
2006-11-15 18:23:21 · answer #5 · answered by Cirric 7 · 0⤊ 0⤋
Its the theory on how the universe started.
http://en.wikipedia.org/wiki/Big_Bang
2006-11-15 18:25:25 · answer #6 · answered by Anonymous · 0⤊ 0⤋
theory that talks about how he universe could have begun
2006-11-15 20:26:22 · answer #7 · answered by 12345 3 · 0⤊ 0⤋
That is what you hear when someone fires a shotgun close to your ear.
2006-11-15 18:20:41 · answer #8 · answered by MikieB 4 · 0⤊ 2⤋