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 attracted to its centre, but to different points in the neighbourhood of that
centre. 5. If the earth and moon were not retained in their orbits by vital force (ant
...
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 that
centre. 5. If the earth and moon were not retained in their orbits by vital force (ant
...
Page 54
I.: The total attraction of gravitation on a planet arises, and is composed, out of the
attraction on the separate parts. Cor. II.: The attraction on separate equal 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 of the
attraction on the separate parts. Cor. II.: The attraction on separate equal particles
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 attracted by the moon unequally, the nearest ...
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 ...
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Contents
Ancient AstronomyChinese and Chaldeans | 7 |
Ancient Greek Astronomy | 13 |
The Reign of Epicycles From Ptolemy | 23 |
3 other sections not shown
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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 Huggins hydrogen hypothesis instruments Johann Kepler John Herschel Jupiter Jupiter's Kepler Lick Observatory light line of sight lunar Mars mathematical mean distance mean motion measured Mercury meteor miles a second moon moon's nebula 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 revolve round ring rotation satellites seems seen showed Sirius solar system spectra spectroscope spectrum sphere spots stellar sun-spots supposed tables telescope theory tion Trans Tycho Brahe Uranus velocity Venus Verrier zenith
Bibliographic information
| Title | History of Astronomy The history of science series |
| Author | George Forbes |
| Publisher | Watts, 1921 |
| Original from | Indiana University |
| Digitized | 5 Aug 2010 |
| Length | 150 pages |
| Export Citation | BiBTeX EndNote RefMan |