History of Astronomy |
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Page 14
He wrote nothing , but is supposed to have said that the earth , moon , five
planets , and fixed stars all revolve round the sun , which itself revolves round an
imaginary central fire called the Antichthon . Copernicus in the sixteenth century ...
He wrote nothing , but is supposed to have said that the earth , moon , five
planets , and fixed stars all revolve round the sun , which itself revolves round an
imaginary central fire called the Antichthon . Copernicus in the sixteenth century ...
Page 22
If , then , we suppose the earth fixed and the sun to revolve round it once a year ,
and the planets each in its own period , it is only necessary to impose upon each
of these an additional annual motion to enable us to represent truly the ...
If , then , we suppose the earth fixed and the sun to revolve round it once a year ,
and the planets each in its own period , it is only necessary to impose upon each
of these an additional annual motion to enable us to represent truly the ...
Page 56
He proved that if a body be projected with any velocity in free space , subject only
to a central force , varying inversely as the square of the distance , the body must
revolve in a curve which may be any one of the sections of a cone — a circle ...
He proved that if a body be projected with any velocity in free space , subject only
to a central force , varying inversely as the square of the distance , the body must
revolve in a curve which may be any one of the sections of a cone — a circle ...
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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 |