2011年6月18日 星期六

蒲朗克長度和蒲朗克時間:

蒲朗克長度和蒲朗克時間:
蒲朗克長度:1.6 x 10-35 m or about 10-20 times the size of a proton.
蒲朗克時間: 10-43 seconds。
The Planck length: This is the ‘quantum of length’, the smallest measurement of length with any meaning. And roughly equal to 1.6 x 10-35 m or about 10-20 times the size of a proton.
The Planck time is the time it would take a photon travelling at the speed of light to across a distance equal to the Planck length. This is the ‘quantum of time’, the smallest measurement of time that has any meaning, and is equal to 10-43 seconds.

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