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The required characteristics of a standard is consistency from time to time. Its value in the past should be the same as its value in the future.
Quote from: hamdani yusuf on 30/04/2024 22:18:20The required characteristics of a standard is consistency from time to time. Its value in the past should be the same as its value in the future.As far as I am aware, there has been no good evidence to date that the speed of light in a vacuum has changed over the lifespan of the Universe. All that has changed is the precision with which we have measured it.