History of Astronomy |
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Page 1
... ment of reasoning powers are in both cases based upon the accumulation of experiences , and on the comparison , classification , arrangement , and nomenclature of these experiences . During the infancy of each the succession of events ...
... ment of reasoning powers are in both cases based upon the accumulation of experiences , and on the comparison , classification , arrangement , and nomenclature of these experiences . During the infancy of each the succession of events ...
Page 10
... ment for their neglect . If this account be true , it means that in the twenty - second century B.C. some rule for calculating eclipses was in use . Here , again , patient observation would easily lead to the detection of the eighteen ...
... ment for their neglect . If this account be true , it means that in the twenty - second century B.C. some rule for calculating eclipses was in use . Here , again , patient observation would easily lead to the detection of the eighteen ...
Page 74
... ment for comparing their times of rising and setting . 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 ...
... ment for comparing their times of rising and setting . 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 ...
Page 91
... ment , found that , if a spirit lamp with salt in the flame were placed in the path of the light , the black D line is intensified . He also found that , if he used a limelight instead of the sunlight and passed it through the flame ...
... ment , found that , if a spirit lamp with salt in the flame were placed in the path of the light , the black D line is intensified . He also found that , if he used a limelight instead of the sunlight and passed it through the flame ...
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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 LIBRARIES light lunar Mars mass mathematical mean measured method miles moon moon's motion move Newton 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 SIGILLUM solar system spectroscope spectrum stars studied sun's supposed surface tables telescope theory tion trace true Tycho Brahe UNIVERSITY VERITAS