History of Astronomy |
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Page 27
The first point relates to the seasons , and it shows a strange ignorance of the
laws of rotating bodies . To use ... surprised him : to explain them he invented a
third motion , and added it to the two real motions ( rotation and orbital revolution
) .
The first point relates to the seasons , and it shows a strange ignorance of the
laws of rotating bodies . To use ... surprised him : to explain them he invented a
third motion , and added it to the two real motions ( rotation and orbital revolution
) .
Page 55
He saw that the figure of the earth depends partly on the mutual gravitation of its
parts , and partly on the centrifugal tendency due to the earth ' s rotation , and that
these should cause a flattening of the poles . He invented a mathematical ...
He saw that the figure of the earth depends partly on the mutual gravitation of its
parts , and partly on the centrifugal tendency due to the earth ' s rotation , and that
these should cause a flattening of the poles . He invented a mathematical ...
Page 109
... as with Mercury also , seemed to be a bar to the discovery of markings by
which the axis and period of rotation could be fixed . Cassini gave the rotation as
twenty - three hours , by observing a bright spot on her surface . Shröter made it
23h .
... as with Mercury also , seemed to be a bar to the discovery of markings by
which the axis and period of rotation could be fixed . Cassini gave the rotation as
twenty - three hours , by observing a bright spot on her surface . Shröter made it
23h .
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Contents
ANCIENT GREEK ASTRONOMY | 3 |
GALILEO AND THE TELESCOPENOTIONS OF GRAVITY | 46 |
NEWTONS SUCCESSORS HALLEY EULER | 60 |
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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
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 |