In quantum mechanics, Planck time is the shortest meaningful period of time; any two events that are separated by less than this amount of time can be considered simultaneous. It has the value 5.390 × 10-44 second. Related to this is the Planck length of 6.160 × 10-33 centimeter, which is the distance that light can travel in the Planck time.
Related categories SPACE AND TIME
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