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Books Books 81 - 83 of 83 on The third, viz. that the squares of the periodic times are proportional to the cubes....
" The third, viz. that the squares of the periodic times are proportional to the cubes of the mean distances... "
History of Astronomy - Page 53
by George Forbes - 1909 - 200 pages
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Report of the Board of Regents, Volume 9

Discoveries in science - 1859
...planet, describes equal areas in equal times, in whatever part of the orbit it is located ; the third, that the squares of the periodic times are proportional to the cubes of the mean distances. This third law may justly be regarded as one of the grandest inductions in the whole range of physical...
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The American Journal of Science and Arts

1852
...Humboldt, "of no inherent necessity, no mechanical, natural law. similar to the one which teaches us that the squares of the periodic times are proportional to the cubes of the major axes, by which the above named six elements* of the planetary bodies and the form of their orbit...
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Mechanics

...times. And he had found, near the end of his life, a third law connecting the different orbits. (3) The squares of the periodic times are proportional to the cubes of the semi-axes major (or of the mean distances). 81. Attempts had even been made to explain the planetary...
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