65. 2022年2月13日 16:22:47 : SPVy6TwizI : aHB2TFNiMnh6bEU=[1]
Gravitational field and time dilation (クリ)
At the high place of high tower, a mirror is set. Light emitted from the ground (frequency is constant) is reflected by the mirror and returkns to the ground. Frequency measured at these three points are equal (otherwise, number of waves existing in the light pathes increase or decrease endlessly), Time will be absolute (and will be no time dilation).
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