[] 相対性理論はインチキだろう.
159. 2022年12月03日 14:53:21 : W2ioYOkRnU : d3UuNkc5bDJ3cDY=[1]
Inertial Force　(クリ)

◎ Inertial force is reaction of Newton's law of action-reaction (the third law of motion). It is not a fictitious force.
◎ In the entire elevator cabin in free-falling, gravity and inertial force are action and reaction. And the two are equal. So, it is not surprising that in this cabin, there is a local area where the magnitude of gravity and inertial force are equal. In this local area, magnitude of inertial force is not zero. That is, this local area is not an inertial frame.
◎ There are two points that are not in relative motion. It is impossible to say for one to be an inertial frame and for the other an accelerated frame. There can be no such thing as a local inertial frame.
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