The Planetary and Stellar Worlds: A Popular Exposition of the Great Discoveries and Theories of Modern Astronomy. In a Series of Ten LecturesOakley & Mason, 1868 - 320 páginas |
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Página viii
... position . Preparations were now made to commence the erection of the building for the observatory . The grounds were enclosed , a road built , rendering the access to the hill - top comparatively easy , the excavations for the ...
... position . Preparations were now made to commence the erection of the building for the observatory . The grounds were enclosed , a road built , rendering the access to the hill - top comparatively easy , the excavations for the ...
Página x
... position in which I was placed , the College edifice took fire and burned to the ground . My ordinary means of support were thus destroyed at a single blow . I had engaged to con- duct the observatory , without compensation from the ...
... position in which I was placed , the College edifice took fire and burned to the ground . My ordinary means of support were thus destroyed at a single blow . I had engaged to con- duct the observatory , without compensation from the ...
Página xiv
... position , 78. The Greek astronomers , Pythagoras , Nicetas , Hipparchus , Ptolemy , 80. System of Ptolemy , 82. Astronomy cultivated by the Arabs , 82. The era of modern science commences , 84. Co- pernicus and his discoveries , 86 ...
... position , 78. The Greek astronomers , Pythagoras , Nicetas , Hipparchus , Ptolemy , 80. System of Ptolemy , 82. Astronomy cultivated by the Arabs , 82. The era of modern science commences , 84. Co- pernicus and his discoveries , 86 ...
Página 23
... , then arises the complicated ques- tion , how many motions belong to it ? and with what velocity does it move ? If a motion of rotation exist , what is the position of the axis about which it INTRODUCTORY LECTURE . 23.
... , then arises the complicated ques- tion , how many motions belong to it ? and with what velocity does it move ? If a motion of rotation exist , what is the position of the axis about which it INTRODUCTORY LECTURE . 23.
Página 24
... position of the axis about which it re- volves , and is this axis permanent or changeable ? If a motion of translation in space must be adopted , then whither is the earth urging its flight ? what the nature of the path described ? the ...
... position of the axis about which it re- volves , and is this axis permanent or changeable ? If a motion of translation in space must be adopted , then whither is the earth urging its flight ? what the nature of the path described ? the ...
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Términos y frases comunes
absolute accomplished actually aphelion appear astonishing astronomer axis beautiful body bright celestial sphere centre centrifugal force circle cluster comet commenced computed constellations curve detected determined diameter direction discovered discovery double stars earth earth's orbit eccentricity eclipse efforts entire equal equator examination existence fact finally fixed stars force forever grand Halley's comet heavens Herschel inclined increase instrument investigation Jupiter Kepler law of gravitation laws of Kepler light limits magnitude matter mean distance mighty miles Milky millions mind moon moon's motion move movements mysterious nearly nebula night object observation observatory orbs parallax pass perihelion phenomena philosopher planet planetary planetary orbits position precisely present primitive problem proper motion reached remarkable retrograde motion revealed revolving round satellites Saturn seen slowly solar system sphere Struve sun and moon sun's sweeping tance telescope theory thousand tion truth Uranus vast velocity visible wonderful