Introductory Astronomy |
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Page 115
... theory , one regards light energy from a source as consisting of a continuous stream of waves such as those produced when a rock is tossed into a quiet pool of water , and the water waves radiate from the contact point in concentric ...
... theory , one regards light energy from a source as consisting of a continuous stream of waves such as those produced when a rock is tossed into a quiet pool of water , and the water waves radiate from the contact point in concentric ...
Page 303
... theory are obtained from mathe- matical equations so abstruse that only relatively few scientists with the appropriate mathematical and physical background can inter- pret them . Another aspect of the relativity theory is that it rests ...
... theory are obtained from mathe- matical equations so abstruse that only relatively few scientists with the appropriate mathematical and physical background can inter- pret them . Another aspect of the relativity theory is that it rests ...
Page 305
... theory , the universe will continue to expand indefinitely , the radiant energy temperature will continue to drop , the nuclear fuel ( mainly hydrogen ) will become less available , increasingly more stars will " die " and cease to ...
... theory , the universe will continue to expand indefinitely , the radiant energy temperature will continue to drop , the nuclear fuel ( mainly hydrogen ) will become less available , increasingly more stars will " die " and cease to ...
Contents
The Beginnings of AstronomyPtolemy | 1 |
The Earth and Its Motions | 25 |
The Earths Interior | 43 |
Copyright | |
18 other sections not shown
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absolute magnitude absorption lines apparent magnitude appear asteroids astronomers atoms average axis binary bright line brighter celestial cepheids clouds color comet craters curve decreases density diagram diameter disc distance distance modulus dust E₁ earth earth's atmosphere earth's orbit eclipse electron emission emit energy fainter galactic center galactic clusters galactic plane galaxy gases globular clusters gravitational Hale Observatories helium hydrogen increase infrared interstellar ionized Jupiter layer light light-years luminosity lunar main sequence Mars measured meteorite meteoroids meteors miles million molecules moon moon's moving nebula neutron nucleus object observed orbital eccentricity orbital velocity particles period photograph planet protons protoplanets quasars radial velocity radiation radio rays region result rotation satellites Section seen shown in Figure solar masses solar system space spectral spectroscopic spectrum speed spiral star star's stellar sun's sunspot surface temperature telescope theory tion ultraviolet universe Venus wavelength waves white dwarf ZAMS