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Dismantling a Centuries-old Myth

其他書名	Newton's Principia and Inverse-square Orbits
出版	American Association of Physics Teachers, 1982
URL	http://books.google.com.hk/books?id=nWQFSQAACAAJ&hl=&source=gbs_api

註釋Examination of Newton's Principia reveals a fallacy in its purported proof of the otherwise well established fact that an inverse-square central force acting on a particle requires that the particle move in a conic-section orbit. The great difficulty of reading through the Principia material antecedent to the fallacy is offered as a major reason for the centuries-long delay in its detection and general acknowledgment. It was Johann Bernoulli, evidently, who in 1710 first proved that the inverse-square force implies a conic-section orbit.