History of Astronomy |
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Page 61
... generally taken as constant . But Laplace ' s calculations showed the new
value to depend upon the excentricity of the earth ' s orbit , which , according to
theory , has a periodical variation of enormous period , and has been continually
...
... generally taken as constant . But Laplace ' s calculations showed the new
value to depend upon the excentricity of the earth ' s orbit , which , according to
theory , has a periodical variation of enormous period , and has been continually
...
Page 70
He may have felt , after all the work he had done , that Airy ' s very natural inquiry
showed no proportionate desire to search for the planet . Anyway , the matter lay
in embryo for nine months . Meanwhile , one of the ablest French astronomers ...
He may have felt , after all the work he had done , that Airy ' s very natural inquiry
showed no proportionate desire to search for the planet . Anyway , the matter lay
in embryo for nine months . Meanwhile , one of the ablest French astronomers ...
Page 100
Howlett , however , in 1894 , after thirty years of work , showed that the spots are
not always depressions , being very subject to disturbance . The Kew
photographs ' contributed a vast amount of information about sun - spots , and
they showed ...
Howlett , however , in 1894 , after thirty years of work , showed that the spots are
not always depressions , being very subject to disturbance . The Kew
photographs ' contributed a vast amount of information about sun - spots , and
they showed ...
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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 |