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Planck Time Is How Long It Takes Light To Travel One Planck Length
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What Is The Shortest Possible Unit Of Time?
Could anything be shorter than Planck time?
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Key Facts In This Video

The Planck length is the smallest length (it measures 1.61619926 × 10^35 meters). 00:01

The shortest possible time may be the Planck length divided by the speed of light. 00:28

The attosecond may be the shortest amount of time that has ever been identified. 01:00
Planck's Constant
Learn the origin of quantum mechanics.
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