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Golfer
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I am presently reading a paper on Inflation. It uses the term Hubble length. Can someone provide the Hubble length in cm.
Golfer said:I am presently reading a paper on Inflation. It uses the term Hubble length. Can someone provide the Hubble length in cm.
Thus, it is probably silly to describe it in centimeters.Can someone provide the Hubble length in cm.marcus said:about 14 billion lightyears.
Inflation is a period of rapid expansion in the early universe, where the Hubble length (the distance over which objects are receding due to the expansion of the universe) increased dramatically. This expansion is thought to have occurred in the first fraction of a second after the Big Bang.
During inflation, the Hubble length increased exponentially, meaning that objects that were once close together became much further apart. This rapid expansion is thought to be responsible for the large-scale homogeneity and isotropy of the universe that we observe today.
The Hubble length sets a limit on the size of the observable universe, as objects that are further away than the Hubble length are receding faster than the speed of light and therefore cannot be seen. However, the observable universe is much larger than the Hubble length, as the expansion of the universe has allowed us to see objects that were once within the Hubble length but are now much further away.
Yes, the Hubble length is not a constant value and can change over time as the universe continues to expand. However, the rate of change is not constant and can vary depending on factors such as the amount of matter and energy in the universe.
The Hubble length is not a physical length, but rather a measure of the distance over which objects are receding due to the expansion of the universe. It is not directly related to the speed of light, but the expansion of the universe is often described in terms of the Hubble constant, which has units of velocity (km/s) per megaparsec and gives the rate at which objects are receding due to the expansion of the universe.