History of Astronomy |
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Page 28
attack the principle of the epicyclical theory : he merely sought to make it more
simple by placing the centre of the earth ' s orbit in the centre of the universe .
This was the point to which the motions of the planets were referred , for the
planes of ...
attack the principle of the epicyclical theory : he merely sought to make it more
simple by placing the centre of the earth ' s orbit in the centre of the universe .
This was the point to which the motions of the planets were referred , for the
planes of ...
Page 45
because it is the centre of the universe , but because it is the centre of the
attracting particles of the earth . 4 . If the earth be not round ( but spheroidal ? ) ,
then bodies at different latitudes will not be attracted to its centre , but to different
points ...
because it is the centre of the universe , but because it is the centre of the
attracting particles of the earth . 4 . If the earth be not round ( but spheroidal ? ) ,
then bodies at different latitudes will not be attracted to its centre , but to different
points ...
Page 74
About 300 B . C . an observatory fitted with circular instruments for star positions
was set up at Alexandria , the then centre of civilisation . We know almost nothing
about the instruments used by Hipparchus in preparing his star catalogues and ...
About 300 B . C . an observatory fitted with circular instruments for star positions
was set up at Alexandria , the then centre of civilisation . We know almost nothing
about the instruments used by Hipparchus in preparing his star catalogues and ...
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Contents
Ancient GREEK ASTRONOMY | 3 |
INSTRUMENTS OF PRECISIONSIZE OF THE SOLAR | 10 |
GALILEO AND THE TELESCOPENOTIONS OF GRAVITY | 46 |
5 other sections not shown
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Common terms and phrases
accepted accurate ancient appear astronomers attraction bodies born bright calculations called catalogue cause centre century circle comet compared complete Copernicus determined diameter direction discovered discovery distance earth eclipse effect enabled epicycles equal error excentric explain fact fixed follow force Galileo give given gravitation heavenly heavens held Herschel Hipparchus idea included interesting invented Jupiter Kepler knowledge known later light lunar Mars mass mathematical mean measured method miles minutes moon moon's motion move Newton noticed object observations Observatory opposition orbit original parallax pass period photographic physical planetary planets pole position predicted present principle progress proper proved records revolve rotation round Royal satellites says seems seen showed solar system spectroscope spectrum stars studied sun's supported supposed surface tables telescope theory tion trace true Tycho Brahe uniform universal
Bibliographic information
| Title | History of Astronomy Hist. of sci. series History of science series |
| Author | George Forbes |
| Publisher | Watts, 1909 |
| Original from | the University of California |
| Digitized | 13 Jan 2011 |
| Length | 154 pages |
| Export Citation | BiBTeX EndNote RefMan |