March 21, 2011

How Much Energy in Universe?

Natalie Wolchover, Life's Little Mysteries


Life's Little Mysteries

Considering the amount of energy packed in the nucleus of a single uranium atom, or the energy that has been continuously radiating from the sun for billions of years, or the fact that there are 10^80 particles in the observable universe, it seems that the total energy in the universe must be an inconceivably vast quantity. But it's not; it's probably zero.

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TAGGED: Energy, Universe

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