Time at the big bang and in very early time after that

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SUMMARY

The discussion centers on the nature of time immediately following the Big Bang, emphasizing that time, as measured by clocks, has been consistent since the Big Bang Singularity. The concept of "comoving" coordinates is identified as the standard frame of reference in cosmology, particularly in relation to the Friedmann-Lemaître-Robertson-Walker (FLRW) metric. Participants clarify misconceptions about the definiteness of time, asserting that it is a measurable quantity rather than an abstract concept.

PREREQUISITES
  • Understanding of the Big Bang Singularity
  • Familiarity with the Friedmann-Lemaître-Robertson-Walker (FLRW) metric
  • Knowledge of comoving coordinates in cosmology
  • Basic grasp of the concept of time in physics
NEXT STEPS
  • Research the implications of the Friedmann-Lemaître-Robertson-Walker (FLRW) metric in cosmology
  • Explore the concept of comoving coordinates and their applications in cosmological models
  • Study the measurement of time in physics, particularly in relation to cosmological events
  • Investigate the nature of time and its philosophical implications in the context of the universe's evolution
USEFUL FOR

Astronomers, physicists, cosmologists, and anyone interested in the fundamental nature of time and its behavior in the early universe.

Prins
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Well i read a lot of times the chronological explanation of big bang.
I always wondered what was the shape of time in those early times as we all know time is not definite in itself.
So please explain to me what sort of frame of reference they took for explaining the events according to time and the behavior of time at that times.
Thanks
 
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Prins said:
... as we all know time is not definite in itself...
Actually, we DON'T all know that. Time is what a clock measures and it was ticking away at one second per second right after the Big Bang Singularity and has continued to do so ever since.
 
Prins said:
I always wondered what was the shape of time in those early times

What do you mean by "the shape of time"?

Prins said:
please explain to me what sort of frame of reference they took for explaining the events

The standard frame of reference used in cosmology is "comoving" coordinates, the coordinates in which the FLRW metric is expressed.
 

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