[] 相対性理論はインチキだろう.
98. 2022年5月12日 06:57:51 : NIdTXLf7Fc : QU1GUGxXbWg1VXc=[1]
Newton's Third Law of Motion　(クリ）

As an action and reaction, there are two examples about gravity. One is normal force. The other is Inertial force in free fall. The two should be accepted qualitatively and quantitatively.
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