The Planetary and Stellar Worlds: A Popular Exposition of the Great Discoveries and Theories of Modern AstronomyOakley & Mason, 1866 - 326 páginas |
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Página xi
... measured by its reach to unfold the mysteries of the stars . It will be seen that in the following lectures one single object has engaged the attention of the writer - the structure of the universe , so far as revealed by the mind of ...
... measured by its reach to unfold the mysteries of the stars . It will be seen that in the following lectures one single object has engaged the attention of the writer - the structure of the universe , so far as revealed by the mind of ...
Página xii
... measure- ment of Strüve's double stars in that region . Should this work progress but slowly , let it be remembered that the director of the observatory has no assistant , out of his own immediate family , and must devote a large ...
... measure- ment of Strüve's double stars in that region . Should this work progress but slowly , let it be remembered that the director of the observatory has no assistant , out of his own immediate family , and must devote a large ...
Página xiii
... measure of the year , 49. A moving star discovered , 50. Periods of the planets deter- mined , 53. The sun's apparent motion the subject of perplexity , 55. The equinoxes and solstices , 56. Inequality in the sun's motion detected , 57 ...
... measure of the year , 49. A moving star discovered , 50. Periods of the planets deter- mined , 53. The sun's apparent motion the subject of perplexity , 55. The equinoxes and solstices , 56. Inequality in the sun's motion detected , 57 ...
Página xiv
... Measure of the moon's distance and of the earth's circumference , 118. The law of gravitation - Newton's first effort to demonstrate the truth of this law , 121. He finally shows that the moon is ever falling towards the earth , and ...
... Measure of the moon's distance and of the earth's circumference , 118. The law of gravitation - Newton's first effort to demonstrate the truth of this law , 121. He finally shows that the moon is ever falling towards the earth , and ...
Página 27
... measuring with approximate accuracy , their distance from the stars along their path , it became possible to trace a planet in its career , and to note the changes of its velocity . New and wonderful discover- ies were thus made . It ...
... measuring with approximate accuracy , their distance from the stars along their path , it became possible to trace a planet in its career , and to note the changes of its velocity . New and wonderful discover- ies were thus made . It ...
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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