The Early Universe and the Laws of Physics

In summary, as we "wind back the clock" of the Universe and approach the Big Bang, the laws of physics do not fall apart but rather change characteristics. It is believed that at that time, there was only one force, which later separated into the four forces we know today. This theory is supported by the chronology of the universe.
  • #1
Sullivan Stockwell
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I've heard it said multiple times on here and elsewhere that as we "wind back the clock" of our Universe and the Big Bang that our laws of physics kind of begin to fall apart, in a sense. If this is true, can anyone explain exactly which laws become more difficult to work with, and why? Thanks.
 
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  • #2
Sullivan Stockwell said:
I've heard it said multiple times on here and elsewhere that as we "wind back the clock" of our Universe and the Big Bang that our laws of physics kind of begin to fall apart, in a sense. If this is true, can anyone explain exactly which laws become more difficult to work with, and why? Thanks.
No, they don't fall apart at all, but they change characteristics. It is believed that at the time when the Big Bang theory starts winding forward, there was only one force, and it early on separated out into the 4 forces we know now.

https://en.wikipedia.org/wiki/Chronology_of_the_universe
 

1. What is the Early Universe?

The Early Universe refers to the period of time in the history of the universe, shortly after the Big Bang, when the laws of physics were very different from what we observe today. During this time, the universe was extremely hot and dense, and the fundamental forces of nature were not yet fully developed.

2. How did the laws of physics come into existence in the Early Universe?

The laws of physics were not created or imposed by any external force in the Early Universe. They emerged naturally as the universe evolved and expanded after the Big Bang. The laws of physics were present in the initial conditions of the universe and have been shaping its evolution ever since.

3. What is the role of gravity in the Early Universe?

Gravity played a crucial role in the evolution of the Early Universe. As the universe expanded and cooled, gravity caused matter to clump together, leading to the formation of galaxies, stars, and other structures. It also influenced the overall shape and expansion rate of the universe.

4. How do physicists study the Early Universe?

Physicists use a variety of techniques and tools to study the Early Universe, including observations made with telescopes and satellites, theoretical models, and experiments conducted in large particle accelerators. These methods allow scientists to gather data and test theories about the origins and evolution of the universe.

5. What have we learned about the Early Universe and the laws of physics?

Through decades of research and experimentation, scientists have gained a better understanding of the Early Universe and the fundamental laws of physics. We now know that the universe began with a Big Bang, and the laws of physics have remained consistent throughout its evolution. However, there are still many unanswered questions and ongoing research to further our understanding of the Early Universe and the laws of physics.

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