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The squares of the periods of revolution of any two planets are proportional to the cubes of their mean distances from the sun.
School Atlas of Astronomy: Comprising, in Twenty-one Plates, a Complete ... - Stran 17
avtor: Alexander Keith Johnston - 1869 - 70 strani
Celotni ogled - O knjigi

## New American Practical Navigator, Količina 1

1977 - 1412 strani
...sweeps over equal areas in equal intervals of time. 3. The squares of the sidereal periods of any two planets are proportional to the cubes of their mean distances from the sun. In 1687 Isaac Newton stated three "laws of motion," which he believed were applicable to the planets....
Celotni ogled - O knjigi

## A Philosophical and Mathematical Dictionary: Containing an ..., Količina 2

Charles Hutton - 1815 - 686 strani
...their periods round him ; the great law of which is, that the squares of the periodic times are always proportional to the cubes of their mean distances from the sun. , The periods, both tropical and sidereal, with the proportions of the mean distances of the several planets,...
Celotni ogled - O knjigi

## An Introduction to Astronomy ...

John Bonnycastle - 1816 - 490 strani
...that the squares of the times in which any two planets complete their revolutions in their orbits, are proportional to the cubes of their mean distances from the sun. To illustrate this rule by an example : Venus, for instance, revolves round the sun in 224 days, and...
Celotni ogled - O knjigi

## Mechanism of the Heavens

Mary Somerville - 1831 - 720 strani
...the law of Kepler gives whence (85) But, by Kepler's third law, the. squares of the periodic times of the planets are proportional to the cubes of their mean distances from the sun ; therefore T' = *" a\ k being the same for all the planets. Hence c == but 2a (1 — e*) is 2SV, the...
Celotni ogled - O knjigi

## Elements of Astronomy: Descriptive and Physical ...

Hervey Wilbur - 1831 - 170 strani
...the squares of the periods, in which any two pla* nets complete their revolutions in their orbits, are proportional to. the cubes of their mean distances from the Sun. \ This proportion requires illustration. Let the period of tha Earth's revolution, be called 12 months,...
Celotni ogled - O knjigi

## On the Connexion of the Physical Sciences

Mary Somerville - 1834 - 666 strani
...conic sections, having the sun in one of their foci ; and third, that the squares of the periodic times of the planets are proportional to the cubes of their mean distances from the sun. These laws extend also to the satellites. Latent heat. Caloric existing in all bodies, which is not...
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## The Connection of the Physical Sciences

Mary Somerville - 1834 - 390 strani
...conic sections, having the sun in one of their foci ; and third, that the squares of the periodic times of the planets are proportional to the cubes of their mean distances from the sun. These laws extend also to the satellites. Latent heat. Caloric existing in all bodies, which is not...
Celotni ogled - O knjigi

## Elements of Astronomy, Descriptive and Physical: In which the General ...

Hervey Wilbur - 1834 - 172 strani
...that the squares of the periods, in which any two planets complete their revolutions in their orbits, are proportional to the cubes of their mean distances from the Sun. This proportion requires illustration. Let the period of the Earth's revolution, be called 12 months,...
Celotni ogled - O knjigi

## On the Connexion of the Physical Sciences

Mary Somerville - 1835 - 532 strani
...appear to move in hyperbolas, like fig. 8. The third law is, that the squares of the periodic times of the planets are proportional to the cubes of their mean distances from the sun. The square of a number is that number multiplied by itself, and the cube of a number is that number twice...
Celotni ogled - O knjigi

## Transactions of the ... Annual Meeting of the Western Literary ..., Količina 6

Western Literary Institute and College of Professional Teachers - 1837 - 286 strani
...than it would lead him to the knowledge of the Keplerian law, that the squares of the periodic times of the planets are proportional to the cubes of their mean distances from the sun's centre! ' These are subsequent efforts. A child of four years of age can say, "God exists," but...
Celotni ogled - O knjigi