The Planetary and Stellar Worlds: A Popular Exposition of the Great Discoveries and Theories of Modern AstronomyOakley & Mason, 1866 - 326 páginas |
Dentro del libro
Resultados 1-5 de 47
Página xiii
... true center of motion , 29. The planets form a system ; their orbits , laws , stability , 31. Pertur- bations , 32. Analytic machinery , 33. Examination of the starry heavens , 34. Distance of the fixed stars to be determined , 35 ...
... true center of motion , 29. The planets form a system ; their orbits , laws , stability , 31. Pertur- bations , 32. Analytic machinery , 33. Examination of the starry heavens , 34. Distance of the fixed stars to be determined , 35 ...
Página xiv
... true and apparent motion ; immobility of the earth and its central position , 78. The Greek astronomers , Pythagoras , Nicetas , Hipparchus , Ptolemy , 80. System of Ptolemy , 82. Astronomy cultivated by the Arabs , 82. The era of ...
... true and apparent motion ; immobility of the earth and its central position , 78. The Greek astronomers , Pythagoras , Nicetas , Hipparchus , Ptolemy , 80. System of Ptolemy , 82. Astronomy cultivated by the Arabs , 82. The era of ...
Página 31
... the mean motions of the moon , in the figure of the planetary orbits , and in the relative po- nitions which these orbits hold to each other . Are these changes ever progressive ? If this be true , INTRODUCTORY LECTURE . 31.
... the mean motions of the moon , in the figure of the planetary orbits , and in the relative po- nitions which these orbits hold to each other . Are these changes ever progressive ? If this be true , INTRODUCTORY LECTURE . 31.
Página 32
... true , then does the system contain within itself the seeds of de- cay , the elements of its own destruction . Slowly but surely as the solemn tread of time , the end must come , and one by one planet and satellite and comet , sink ...
... true , then does the system contain within itself the seeds of de- cay , the elements of its own destruction . Slowly but surely as the solemn tread of time , the end must come , and one by one planet and satellite and comet , sink ...
Página 37
... true cosmogony of the solar system . But this is only one unit among many millions Whence the myriads of stars ? those stupendous ag- gregations into mighty clusters ? what the laws of their wonderful movements , of their perpetual ...
... true cosmogony of the solar system . But this is only one unit among many millions Whence the myriads of stars ? those stupendous ag- gregations into mighty clusters ? what the laws of their wonderful movements , of their perpetual ...
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Términos y frases comunes
accomplished actually ages appear astronomer attention axis beautiful became become body cause central centre circle close comet coming commenced computed curve detected determined diameter direction discovered discovery distance earth eclipse effect efforts entire equal equator examination existence fact fall figure finally fixed stars force give given grand gravitation heavens human hundred impossible increase influence Jupiter known less light limits magnitude marked mass matter mean measure mighty miles millions mind moon moon's motion move movements nature nearly never night object observation obtained once orbit pass period planet planetary position possible precisely present problem produced question reached reasoning region remain remarkable revealed revolution revolving round satellites seen single slowly solar space success sun's sweeping telescope theory thousand tion true truth unit universe vast watch wonderful