2006-08-01 03:32:48 · 5 answers · asked by oneindia 1 in Science & Mathematics ➔ Physics
No one knows. The science is based on current observations. No one could predict what was before from the data we gather after the big bang. One data that they get now which describe the condition before the big bang is the microwave background residual radiation. From this data obtained now they conclude the universe was uniform Lump less universe. If that is true that should have been the case 15 billion years before the big bang. And slow changes acting on long period of time made this happen.
2006-08-01 03:35:58 · answer #1 · answered by Dr M 5 · 0⤊ 0⤋
There are three major theories which explainthe origin of our universe.
1. The Big Bang theory
2. The Pulsating theory.
3. The Steady state theory.
According to the pulsating theory, this universe originated after a huge explosion called the big bang. After this, our universe expands until a certain time period and then it starts contracting to form a protostar, the initial stage before the big bang. This stage is called the Big Crunch.
Now, this protostar will explode making another Big Bang where the universe will form but the laws of physics will change.
But this theory is not accepted by a few scientists.
2006-08-01 10:57:06 · answer #2 · answered by s s 2 · 0⤊ 0⤋
Scientific theories are confirmed or contradicted by observations and measurements. If there was anything before the big bang, any information about it would have been destroyed in the big bang, so there is no observable way to test such a theory. As such, this becomes maybe a philosophical or religious question, but not a scientific one.
If you can think of a way to observe the effects of whatever came before the big bang, then it would become a scientific question.
2006-08-01 21:42:51 · answer #3 · answered by genericman1998 5 · 0⤊ 0⤋
the emptiness is now often regarded as a scalar field, and a quantum fluctuation then caused the big bang. gotta read up on quantum physics a bit to even remotely understand that... ;-) if there'll be a second big bang is dependent on the amount of matter in the universe. if there is so much matter in the universe that its gravity will eventually stop the expansion, it'll fall in and leave one massive big black hole that might then start expanding again. this is known as a closed universe, or, if it does inded start expanding again, an oscillating one. if there is just the right amount of matter in the universe, the expansion will eventually stop but it won't collapse in itself. this is known as a steady universe. if there is too little matter in the universe to ever stop the expansion it'll just keep on expanding till there'll be no more interaction between the particles. this is known as an open universe.
2006-08-01 10:47:56 · answer #4 · answered by nerdyhermione 4 · 0⤊ 0⤋
Once upon a time, 20 billions of years ago, all matter
(all elementary particles and all quarks and
their girlfriends- antiparticles and antiquarks,
all kinds of waves: electromagnetic, gravitational,
muons… gluons field ….. etc.) – was assembled in a “single point”.
It is interesting to think about what had surrounded the “single point”.
The answer is :
EMPTINESS- NOTHING….!!!
Ok!
But why does everyone speak about EMPTINESS- NOTHING in
common phrases rather than in specific, concrete terms?
I wonder why nobody has written down this EMPTINESS- NOTHING in
the form of a physical formula ? You see, every schoolboy knows that
is possible to express the EMPTINESS- NOTHING condition
by the formula T=0K.
2006-08-01 10:38:01 · answer #5 · answered by socratus 2 · 0⤊ 0⤋