 | University of Cambridge - 1804 - 252 страници
...the position of the eye and image, and also the apparent magnitudes of the object and image ; to the determine the magnitude and position of the refracting...latitude, in, each of two known places, is given. 2d. When the length of a pendulum vibrating seconds, in each of the same two places, is given. , 22.... | |
 | 1821 - 464 страници
...revolving line with one of the given ]ines, the image shall move in its intersection with the other. and bisecting, a very distant object, be given, and...seconds, in each of the same two places, is given. 22. Two bodies whose weights are known, lying on a smooth horizontal plane, are connected by a flexible... | |
 | Edwin Arthur Burtt - 1928 - 620 страници
...sun if that attraction can be shown capable of producing on the planet an acceleration toward the sun which is inversely proportional to the square of its distance from the sun. This means that at twice a given distance the acceleration would be one-fourth as great, at three... | |
 | Bertrand Russell, Peter Köllner - 1996 - 954 страници
...magnitude and direction. He found that every planet at every moment has an acceleration towards the sun which is inversely proportional to the square of its distance from the sun. He then took up the inverse problem, which is one for the integral calculus. If a body has, at... | |
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... and bisecting, a very distant object, be given, and in it the position of the eye and image, and also the apparent magnitudes of the object and image ; to determine the magnitude and position of the refracting surface. 20. A body is projected in a... 