## History of astronomy |

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Page 45

If the earth be not round (but spheroidal ?), then bodies at different latitudes will

not be

centre. 5. If the earth and moon were not retained in their orbits by vital force (aut

...

If the earth be not round (but spheroidal ?), then bodies at different latitudes will

not be

**attracted**to its centre, but to different points in the neighbourhood of thatcentre. 5. If the earth and moon were not retained in their orbits by vital force (aut

...

Page 54

Newton applied this value, and found, to his great joy, that when the distance of

the moon is 60 times the radius of the earth she is

course 16. 1 feet per minute, and that the force acting on a stone or an apple

follows ...

Newton applied this value, and found, to his great joy, that when the distance of

the moon is 60 times the radius of the earth she is

**attracted**out of the straightcourse 16. 1 feet per minute, and that the force acting on a stone or an apple

follows ...

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 AstronomyChinese and Chaldeans | 7 |

Ancient Greek Astronomy | 13 |

The Reign of Epicycles From Ptolemy | 23 |

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### Common terms and phrases

accurate observations Airy ancient astro Astronomer Royal astronomical units attraction axis bright calculations Cape Cassini catalogue centre century Chinese comet compute Copernicus diameter discovered discovery earth eclipse Egyptian epicycles equatoreal error excentric explain fact fixed stars Galileo Greenwich Halley Halley's comet heavenly bodies heavens heliometer Hipparchus hydrogen hypothesis instruments Johann Kepler John Herschel Jupiter Jupiter's Kepler Lick Observatory light line of apses line of sight lunar Mars mathematical mean distance mean motion measured Mercury meteor miles a second moon moon's nebulae Newton nodes noticed Observatory orbit parallax perihelion period photographic physical planet planetary pole position predicted proper motion proved Ptolemy R. S. Phil recognised records refractor retrograde retrograde motion ring rotation satellites seems seen showed Sirius solar system spectra spectroscope spectrum sphere spots stellar sun-spot supposed tables telescope theory tion Trans Tycho Brahe Uranus velocity Venus Verrier zenith