History of Astronomy |
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Page 11
... and that the heavenly bodies do not move by chance , nor by their own will ,
but by the determinate will and appointment of the gods . They recorded these
movements , but mainly in the hope of tracing the will of the gods in mundane
affairs .
... and that the heavenly bodies do not move by chance , nor by their own will ,
but by the determinate will and appointment of the gods . They recorded these
movements , but mainly in the hope of tracing the will of the gods in mundane
affairs .
Page 28
The planets move in a similar way on epicycles , but their deferents have no
geometrical or physical relation to the sun . The moon moves on an epicycle
centred on a second epicycle , itself centred on a deferent , excentric to the earth .
The planets move in a similar way on epicycles , but their deferents have no
geometrical or physical relation to the sun . The moon moves on an epicycle
centred on a second epicycle , itself centred on a deferent , excentric to the earth .
Page 42
The two latter placed all of the planetary orbits concentric with one another , the
sun being placed a little away from their common centre , and having no
apparent relation to them , and being actually outside the planes in which they
move .
The two latter placed all of the planetary orbits concentric with one another , the
sun being placed a little away from their common centre , and having no
apparent relation to them , and being actually outside the planes in which they
move .
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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 |