Big Bang: Spacetime Created in 1 Sec

In summary, during the first second of the Big Bang, an incredible amount of events occurred and we need to use plank time to fully comprehend them. As space expanded, time would also dilate, meaning that if one were inside the Big Bang during its initial seconds, time would speed up as the universe expanded. This would result in the observation of the first second as millennia, as time is measured differently for different observers in our universe.
  • #1
TerryHM
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During the first second of the Big Bang a mind boggling amount happened. So much so that we need to measure it in plank time to appreciate all the stages that occur. And in that 'bang' spacetime was created.

My question is this. As space dilated would time not dilate? Meaning. If I were able to be inside the Big Bang as it happens, in that first second, time would speed up as the universe expanded.

Would this not result in me observing that first second as millennia?
 
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  • #2
Time in our universe and cosmological models is measured by looking at the clocks of co-moving observers in whose frames the universe is homogeneous and isotropic. If you were a different observer, you could have a longer (or shorter) time passing in your clock.
 

Related to Big Bang: Spacetime Created in 1 Sec

1. What is the Big Bang theory?

The Big Bang theory is a scientific explanation for the origin and evolution of the universe. It states that the universe began as a single point of infinite density and temperature, known as a singularity, and expanded rapidly in a massive explosion approximately 13.8 billion years ago.

2. How was spacetime created in one second during the Big Bang?

During the initial moments of the Big Bang, the universe was incredibly hot and dense. As it expanded, the temperature and density decreased, causing particles to form and energy to convert into matter. This process of expansion and cooling allowed for the formation of spacetime, which is the fabric of the universe in which all matter and energy exist.

3. What evidence supports the Big Bang theory?

There are several pieces of evidence that support the Big Bang theory. One of the most significant is the observation of cosmic microwave background radiation, which is leftover radiation from the early stages of the universe. Additionally, the abundance of light elements in the universe, such as hydrogen and helium, can also be explained by the Big Bang.

4. Did the Big Bang create the universe from nothing?

The concept of "nothing" is difficult to define in the context of the Big Bang. The theory does not address what existed before the singularity or what caused it to expand. However, the Big Bang does not claim that the universe was created from absolute nothingness. It simply explains the origin and evolution of the universe from a highly dense and energetic state.

5. What is the current state of the universe according to the Big Bang theory?

According to the Big Bang theory, the universe is still expanding and cooling. This expansion is happening at an accelerating rate, driven by a mysterious force known as dark energy. The universe is also filled with galaxies, stars, and other celestial bodies that have formed over billions of years through the process of gravity.

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