@dialectphilosophy, 1.1

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This post is a debug of dialectphilosophy‘s discussion of relativity.

  • The word “motion” in physics context should mean only velocity, not displacement, nor acceleration.

  • Therefore “motion is relative” should only mean “velocity is relative”. Einstein’s goal to prove that “all motion derivatives, including acceleration, are relative” is silly.

  • Velocity and acceleration are independent variables. “Whether velocity is relative or not” is not relevant to “whether acceleration is relative or not“.

In other words, you cannot use the value of velocity at a moment to derive the acceleration value at that moment. Fundamentally, it is due to fact that v and \Delta v are independent.

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— Me@2023-08-07 05:56:31 AM

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2023.09.04 Monday (c) All rights reserved by ACHK