## History of Astronomy |

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Page 45

then bodies at different latitudes will not be

points in the neighbourhood of that centre . 5 . If the earth and moon were not

retained in their orbits by vital force ( aut alia aliqua aequipollenti ) , the earth and

...

then bodies at different latitudes will not be

**attracted**to its centre , but to differentpoints in the neighbourhood of that centre . 5 . If the earth and moon were not

retained in their orbits by vital force ( aut alia aliqua aequipollenti ) , the earth and

...

Page 54

I . : The total

the

particles of a body is reciprocally as the square of the distance from the particles .

I . : The total

**attraction**of gravitation on a planet arises , and is composed , out ofthe

**attraction**on the separate parts . Cor . II . : The**attraction**on separate equalparticles of a body is reciprocally as the square of the distance from the particles .

Page 55

He invented a mathematical method which he used for computing the ratio of the

polar to the equatorial diameter . He then noticed that the consequent bulging of

matter at the equator would be

He invented a mathematical method which he used for computing the ratio of the

polar to the equatorial diameter . He then noticed that the consequent bulging of

matter at the equator would be

**attracted**by the moon unequally , the nearest ...### What people are saying - Write a review

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### Contents

ANCIENT GREEK ASTRONOMY | 3 |

GALILEO AND THE TELESCOPENOTIONS OF GRAVITY | 46 |

NEWTONS SUCCESSORS HALLEY EULER | 60 |

### Other editions - View all

### Common terms and phrases

accepted accurate ancient appear astronomers attraction bodies bright calculations called catalogue cause centre century Chinese circle comet compared complete Copernicus determined diameter direction discovered discovery distance earth eclipse effect elements enabled epicycles equal error explain fact fixed follow force four Galileo gave give given gravitation heavens held Herschel increased interesting Jupiter Kepler knowledge known later light lunar Mars mass mathematical mean measured method miles moon moon's motion move nebulæ Newton noted noticed object observations Observatory opposition orbit original parallax pass period photographic physical planet planetary pole position predicted progress proper motion proved records researches revolve ring rotation round Royal satellites seems seen showed solar system spectroscope spectrum stars studied sun's supposed surface tables telescope theory tion trace true Tycho Brahe UNIVERSITY