2015年9月15日火曜日

13 The Moon Moving Away【What is the Universe?】Dialogue with the Universe

13 The Moon Moving Away【What is the Universe?】Dialogue with the Universe

・Because of tidal forces between earth and moon, earth's rotation would gradually slow.
•As a result, the moment of the Earth's rotation (rotational force) is reduced, and the moment of the moon around the Earth increases, and the moon away from Earth (3.8 cm per year).

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