Question: The scale of the universe (the average distance between galaxies) at any one moment is believed to have been inversely proportional to the absolute temperature.

The scale of the universe (the average distance between galaxies) at any one moment is believed to have been inversely proportional to the absolute temperature. Estimate the size of the universe, compared to today, at
(a) t = 106 yr,
(b) t = 1s,
(c) t = 10– 6s, and
(d) t = 10–35s.

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