231. 2023年7月28日 08:17:48 : 7SXVGs9nV6 : bGQ3eGppT28uUG8=[1]
Newton’s Spherical Shell Theorem (supplement) (クリ)
◎ But this thought experiment (see 189) doesn’t seem to explain perihelion shift of Mercury. Because, m/49^2 + m/51^2 = 2m/50^2. Surprising !
◎ Another thought experiment is on centrifugal force (see also 188).
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