 | William Russell - 1802 - 502 trang
...ellipsis which has one of its foci in the cerster of the sun ; that the higher planets not only move in greater circles, but also more slowly than those that are nearer; so that, on a double account, they are longer in performing their revolutions. Nor was that bold spirit of investigation, which the... | |
 | John Aikin - 1807 - 684 trang
...several planets from the sun, and the periods in which they complete their revolutions. He easily saw that the higher planets not only moved in greater circles, but also more slowly than the nearer ones; so that, on a double account, their periodic times were greater. Saturn, for example,... | |
 | William Russell - 1839 - 620 trang
...ellipsis, which has one of its foci in the centre of the sun; that the higher planets not only move in greater circles, but also more slowly than those that are nearer ; so that, on a double account, they are longer in performing their revolutions. Nor was that bold spirit of investigation, which the... | |
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... in greater circles, but also more slowly than those that are nearer; so that, on a double account, they are longer in performing their revolutions. 