alkammy said:according to the BB theory, in the first millionth of a second the universe expanded at a rate many times greater than the speed of light, apparently it was able to do this because of the lack of phsical laws
alkammy said:if this is true how do we know that a millionth of a second was in fact a millionth of a second?
How do I know that 2 seconds is 2 seconds? They're equivalent by definition. However, according to Relativity, time is not invariable (neither is the "second"). So the "second" depends on which "clock" we are measuring. To agree on time, we must define what the standard clock will be.
alkammy said:...according to the BB theory, in the first millionth of a second the universe expanded at a rate many times greater than the speed of light, apparently it was able to do this because of the lack of phsical laws...
In the first fractions of seconds, there were fields (such as the Higgs field) that were fluctuating wildly (think of it as Heisenberg Uncertainly - writ large). Once the universe had expanded past a certain point, the field "froze" at a specific level. It could have frozen at any level. The thing is, it did not freeze at zero, as it would have if the expansion had been slower.LaPalida said:How do we explain the laws of the universe. What I mean is, if the universe first started with the big bang ... were all the laws of the universe already made in the big bang or were they developing at the same time as the universe was expanding?
The Big Bang is a scientific theory that explains the origin of the universe. It states that around 13.8 billion years ago, the universe began as a singularity, a point of infinite density and temperature. The singularity then expanded rapidly, resulting in the formation of the universe as we know it today.
The Big Bang is not a single event that occurred in a specific moment of time. Instead, it is an ongoing process that has been happening for 13.8 billion years and is still happening today. It is not possible to measure the exact duration of the Big Bang, but scientists estimate that it lasted for a fraction of a second.
One of the main pieces of evidence for the Big Bang theory is the cosmic microwave background radiation, a faint glow that fills the universe and is believed to be leftover energy from the Big Bang. Other evidence includes the observation of the universe's expansion, the abundance of light elements such as hydrogen and helium, and the large-scale structure of the universe.
During the first few seconds of the Big Bang, the universe underwent a rapid expansion known as inflation. This expansion was followed by the formation of subatomic particles, such as protons and neutrons, which eventually combined to form atoms. As the universe continued to expand and cool, these atoms began to clump together to form stars and galaxies.
The concept of time as we know it did not exist before the Big Bang, making it impossible to determine what came before it. Some scientists theorize that our universe may have been part of a larger, cyclical universe, while others believe that the Big Bang was the beginning of everything. However, these theories are still speculative and have not been proven.