A high-school astronomy: in which the descriptive, physical, and practical are combined .. (1859)
Mattison, Hiram, 1811-1868 · New York, Mason brothers · leaf 47
or theAsteroids. 65. Define gravitation. (What illustration given ?) 66. What relation has gravitation to weight f Upon what does it dependfor its degree of force ? (Why is a cubic foot of cork lighter than the samebulk of lead ?) 67. What effect have the hulk and density of the planets upon the… … GRAVITATION. 43 1. The following table shows the relative attractive force of the sun and planets. Abody weighing one pound on the earth, would weigh, lb. oz. \ lb, oz. On Mercury 1 1{ * Venus 0 15 Mars 0 8 Jupiter 2 8 On Saturn 1 5£ Uranus 0 12£ Neptune unknown! The Sun 28 52 2. A person weighing…
Astronomy
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