...It is gravitation which causes unsupported bodies to fall to the ground, which gives them weight, and which fastens us to the earth on which we live... 
P. J. Proudhon 「What is Property?」
...Probably,”he added, “it is a planetary fragmentof some odd composition that is lessresponsive to gravitation than the materialswith which we are familiar...
Various 「Astounding Stories of Super-Science, March 1930」
...He hulked before them like a behemoth, even dwarfing Hilary'scompanion with his enormous stature; but it was noticeable that hesupported his weight ill, as if Earth's gravitation was too strong forhim...
Nat Schachner 「Slaves of Mercury」
...These three laws contain implicitly the law of universal gravitation...
George Forbes 「History of Astronomy」
...He saw thedifficulty of gravitation acting through the void space...
George Forbes 「History of Astronomy」
...From the all too brief epitome here given of Kepler’s greatest book, itmust be obvious that he had at that time some inkling of the meaning of hislaws—universal gravitation...
George Forbes 「History of Astronomy」
...: That gravitation occurs in all bodies, and that it is proportional tothe quantity of matter in each...
George Forbes 「History of Astronomy」
...: The total attraction of gravitation on a planet arises, and iscomposed, out of the attraction on the separate parts...
George Forbes 「History of Astronomy」
...The Paris Academy, in 1770, offered their prize for an investigation to see ifthis could be explained by the theory of gravitation...
George Forbes 「History of Astronomy」
...de, 50, 58, 61, 62, 65,66, 123, 146Lassel, 72, 88, 117, 118Law of universal gravitation, 53Legendre, 65Leonardo da Vinci, 46Lewis, G...
George Forbes 「History of Astronomy」
...In that case the light pressure will prevail over the attraction of gravitation, and propel the attenuated matter away from the sun in the teeth of its attraction...
Garrett Serviss 「Curiosities of the Sky」
...The explanation is, however, facilitated when it is borne in mind thatthe force of gravitation is much less on the moon than on the earth...
Robert Stawell Ball 「The Story of the Heavens」
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