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 xvi
... unit , 254. The velocity of light determined from the eclipses of Jupiter's satellites , and employed as a unit , 256 . Parallax of the fixed stars , 258. No parallax sensible to the naked eye , 260. Great distance of the fixed stars ...
... unit , 254. The velocity of light determined from the eclipses of Jupiter's satellites , and employed as a unit , 256 . Parallax of the fixed stars , 258. No parallax sensible to the naked eye , 260. Great distance of the fixed stars ...
Página 35
... unit in the expression of the mighty distances which remain yet to be revealed . Ever baf- fled but never conquered , the mind returns again and again to the attack , till finally the problem slowly yields , the immeasurable gulf is ...
... unit in the expression of the mighty distances which remain yet to be revealed . Ever baf- fled but never conquered , the mind returns again and again to the attack , till finally the problem slowly yields , the immeasurable gulf is ...
Página 37
... 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 stability ? Who will explain the periodical stars , that wax ...
... 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 stability ? Who will explain the periodical stars , that wax ...
Página 82
... unit , are lost to the world . When astronomy was banished from Greece , it found a home among the Arabs . When darkness and gloom wrapped the earth through ten long centuries , and human knowledge languished , and art died , and genius ...
... unit , are lost to the world . When astronomy was banished from Greece , it found a home among the Arabs . When darkness and gloom wrapped the earth through ten long centuries , and human knowledge languished , and art died , and genius ...
Página 120
... unit of time . Ex- periment shows that that power which causes a heavy body to fall to the earth's surface , is capable of im- pressing upon it a motion of about 16 feet in the first second of time after its fall commences . In case the ...
... unit of time . Ex- periment shows that that power which causes a heavy body to fall to the earth's surface , is capable of im- pressing upon it a motion of about 16 feet in the first second of time after its fall commences . In case the ...
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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