Who was the first person to give assumption of scale factor of the universe?
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The relative expansion of the universe is parametrized by a dimensionlessscale factor {\displaystyle a}. Also known as the cosmic scale factor or sometimes the Robertson-Walker scale factor,[1] this is a key parameter of the Friedmann equations.
In the early stages of the big bang, most of the energy was in the form of radiation, and that radiation was the dominant influence on the expansion of the universe
thnx
In the early stages of the big bang, most of the energy was in the form of radiation, and that radiation was the dominant influence on the expansion of the universe
thnx
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