The Origin of the Stars: And the Causes of Their Motions and Their Light |
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Page 18
... colors , or the prismatic spectrum , then many fine dark lines are seen to cross this spectrum , if viewed by a suitable instrument . These are called fixed lines , or Fraunhoffer lines , after their discoverer . The cause of these ...
... colors , or the prismatic spectrum , then many fine dark lines are seen to cross this spectrum , if viewed by a suitable instrument . These are called fixed lines , or Fraunhoffer lines , after their discoverer . The cause of these ...
Page 19
... colors also depend on the substances in the flame . They can all be made dark , how- ever , just like those in the ... color or position all become dark . Therefore the interpretation of the dark lines in the solar and stellar spectra is ...
... colors also depend on the substances in the flame . They can all be made dark , how- ever , just like those in the ... color or position all become dark . Therefore the interpretation of the dark lines in the solar and stellar spectra is ...
Page 79
... color , analogous to what occurs upon our own planet in bodies which , having become incandescent , subsequently undergo extinguishment . " Thus both Newton and Laplace , resting on the axiom that the light of the sun and of our ...
... color , analogous to what occurs upon our own planet in bodies which , having become incandescent , subsequently undergo extinguishment . " Thus both Newton and Laplace , resting on the axiom that the light of the sun and of our ...
Page 94
... color , and dis- appears . We can also understand why the penumbra , as it encroaches on the nucleus , occasionally divides it in two , and also why in the same spot there may be several nuclei . The spots may not in all cases be ...
... color , and dis- appears . We can also understand why the penumbra , as it encroaches on the nucleus , occasionally divides it in two , and also why in the same spot there may be several nuclei . The spots may not in all cases be ...
Page 102
... color ; such , in fact , as appear in the stars . When the simple chemical elements are vaporized by heat , and thus suspended in the flames , as for instance in the flame of a lamp furnace , then the fixed lines of those elements may ...
... color ; such , in fact , as appear in the stars . When the simple chemical elements are vaporized by heat , and thus suspended in the flames , as for instance in the flame of a lamp furnace , then the fixed lines of those elements may ...
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Common terms and phrases
accounts Alpha Centauri amount appear asteroids astronomers atmosphere axis blue bodies bright burning carbon cause centre centrifugal force centripetal force changes of color chemical action chemical force combination combustion compounds condensation condition cooling dark dense density diameter disk distance double stars earth equal evidences exterior facts fixed lines fixed stars flames force of gravity friction gaseous gravity greater Hence hundred hydrogen inclined plane interior heat irregular Jupiter known space laws less light and heat liquid matter melted Mercury meteorites miles Milky millions moon motions mountains nearly nebular theory nebulous globe nebulous sun Neptune oblateness observations ocean origin oxygen penumbra periodic stars photosphere physical forces planetary planets planets and satellites produce retardation revolve ring Saturn seen sidereal system simple chemical elements simple elements Sirius solar system space spots stellar sun's surface temporary stars tion Uranus variable stars velocity of rotation Venus Webb yellow
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