Thursday, May 1, 2008

Creation of the Universe - the Theory and Evidence..

A theory of scientific dominated society is the Big Bang theory.

The Big Bang theory is acceptable today theory about the origins of the universe. According to this theory the universe was created in a "Big Bang" to 12-15 billion years. Science has no way of predicting what this time. Before the Big Bang, all matter in the universe as we know it today was close at one point. It is hard to imagine, but the universe was this point, there was nothing more than that point. Then a huge explosion occurred and the point began to expand with enormous speed. All the material init moved away from the explosion into space. The explosion also a quantity of radioactivity. The proof of this is the cosmic background radiation, as we see today. Since then, the point was that the early universe, according to the size as we know it today, and is continuing to expand. The proof of this is the measurement of galaxies appear to be farther apart as we measure.

Immediately after the big bang the universe was filled with a thick "soup" of subatomic particles, called quarks and leptons (electrons) and their antiparticle equivalents. With 0.01 seconds after the Big Bang some of the quarks had united to form neutron and protons. After another 2 seconds remaining the only leptons were electrons, the anti-particles have been destroyed. After 3.5 minutes the hydrogen and helium nuclei formed. After a million years the universe populated with hydrogen and helium atoms, the raw material of stars and galaxies. The initial radiation from the "Big Bang" has become less energetic. These "cosmic background radiation" today has a temperature 3 degrees above absolute zero about -270 C.

The future of the universe has several potential results.
Either it is a closed world where the universe meet a critical point, the gravity between galaxies will overcome the speed to them from the Big Bang and the universe starts to shrink. All galaxies moves in a certain point in space, where it will be a highly concentrated point as the universe was like before the Big Bang. The tragic death of the universe, some scientists as "The Big Crunch". Then the process can start all over again to create a new universe (it can also put our present universe).
Or it becomes a flat universe, where the universe will continue its expansion, but the rate of expansion will decrease just before zero, but never below it.
Or it becomes an open universe, where the universe is continually expanding.
One of these options is the fate of our universe is for discussion in the scientific society, and no agreement has been reached, but we are still in the phase of expansion.

1 comment:

Author said...

It's Interesting, and how do u think, why did that Explosion happened?