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" The same astronomer also ascertained, that the squares of the times of revolution of the different planets are in proportion to the cubes of their mean distances from the sun. "
Eight Familiar Lectures on Astronomy, Intended as an Introduction to the ... - Page 39
by William Philipps - 1817 - 254 pages
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Library for the people. (Division 1). The wonders of nature and art ..., Issue 2

Library - 1827 - 712 pages
...astronomers. This is as follows : 5. " The squares of the times of revolution in any two planets, vary in proportion to the cubes of their mean distances from the sun," — that is, if the square of the time of one be multiplied by the cube of the distance of another,...
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Library of Useful Knowledge: Natural philosophy, Volume 3

1834 - 578 pages
...revolving round the sun arc elliptical ; their periodic times, or the times of their revolutions, arc in proportion to the cubes of their mean distances from the sun, and the forces by which they gravitate towards the sun are as the squares of those distances. The supposition...
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The Family Magazine, Or, General Abstract of Useful Knowledge, Volume 2

1835 - 430 pages
...round the sun are elliptical ; the squares of their periodick times, or the times of their revolutions, are in proportion to the cubes of their mean distances from the sun, and the forces by which they gravitate towards the sun are inversely as the squares of those distances....
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Family Magazine: Or Monthly Abstract of General Knowledge, Volume 2

1835 - 430 pages
...round the sun are elliptical; the squares of their periodick times, or the times of their revolutions, soP | |ą l r. % YV and the forces by •which they gravitate towards the sun are inversely as the squares of those distances....
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Celestial Scenery: Or, The Wonders of the Planetary System Displayed

Thomas Dick - Astronomy - 1838 - 426 pages
...the cube of the moon's distance : is to the cube of the sun's distance : : so is the square of the * For example ; if one planet were four times as distant...in a period eight times as long : for the cube of 4=64 is equal to the square of 8. Thus Mars is about four timea as remote from the sun as Mercury,...
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Celestial Scenery: Or, The Wonders of the Planetary System Displayed ...

Thomas Dick - Astronomy - 1838 - 444 pages
...law, and yet revolve in 365 days, his distance ought to be only About 1,351,000 miles, whereas it * For example ; If one planet were four times as distant...in a period eight times as long ; for the cube of 4=64 ls equal to the aquare of 3. Thus Mars ia about four timea as remote from the aun as Mercury,...
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The English Journal of Education, Volumes 8-9

Education - 1854 - 886 pages
...radius vector describes equal areas in equal times. The squares of the periodic times of the planets are in proportion to the cubes of their mean distances from the sun." The notes of these three laws could be much more easily put upon the board than the figures, which...
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A Course of Lectures on Natural Philosophy and the Mechanical Arts, Volume 1

Thomas Young - Science - 1845 - 654 pages
...same astronomer also ascertained, that the squares of the times of revolution of the different planets are in proportion to the cubes of their mean distances...it would revolve in a period eight times as long, since the cube of 4 is equal to the square of 8 ; thus Mars is nearly four times as remote from the...
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A Course of Lectures on Natural Philosophy and the Mechanical Arts, Volume 1

Thomas Young - Science - 1845 - 660 pages
...same astronomer also ascertained, that the squares of the times of revolution of the different planets are in proportion to the cubes of their mean distances...another, it would revolve in a period eight times as lone, since the cube of 4 is equal to the square of 8; thus Mars is nearly four times as remote from...
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Celestial Scenery, Or, The Wonders of the Planetary System Displayed ...

Thomas Dick - Astronomy - 1847 - 416 pages
...distance : so is the square of the * For example ; if one planet were four times as distant as Hnolher, it would revolve in a period eight times as long ; for the cube of 4=64 is equal to the square of 8. Thus Mars is about four times as remote from tho sun as Mercury,...
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