The Orbs Around Us: A Series of Familiar Essays on the Moon and Planets, Meteors and Comets, the Sun and Coloured Pairs of SunsLongmans, Green, and Company, 1881 - 337 páginas |
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Página 9
... bright lines seen when the spectrum of the same gas is separately examined ) . So that we may compare the spectrum of an incandescent solid or fluid shining through a gaseous or vaporous envelope with the case in which the continuous ...
... bright lines seen when the spectrum of the same gas is separately examined ) . So that we may compare the spectrum of an incandescent solid or fluid shining through a gaseous or vaporous envelope with the case in which the continuous ...
Página 10
... bright lines into comparison with the gaps of a spectrum crossed by dark lines ; and only when he finds that the bright lines and the dark lines correspond exactly , does he conclude that the particular substance which produces the dark ...
... bright lines into comparison with the gaps of a spectrum crossed by dark lines ; and only when he finds that the bright lines and the dark lines correspond exactly , does he conclude that the particular substance which produces the dark ...
Página 11
... bright lines . Among them are some , indeed , which f show only one line , whereas others show three , or even four . But the difference , such as it is , doubtless depends only on the relative brightness of these objects , for , where ...
... bright lines . Among them are some , indeed , which f show only one line , whereas others show three , or even four . But the difference , such as it is , doubtless depends only on the relative brightness of these objects , for , where ...
Página 12
... bright parts of the disc ; the ordinarily bright parts have not the same spectrum as the exceptionally bright parts , called the faculæ . Then the spectrum of a solar spot is variable , actually changing under the eye of the observer ...
... bright parts of the disc ; the ordinarily bright parts have not the same spectrum as the exceptionally bright parts , called the faculæ . Then the spectrum of a solar spot is variable , actually changing under the eye of the observer ...
Página 13
... bright line in the spectrum of a celestial object . It tells the observer that within the limits of vision ( aided , if need be , by the telescope ) some molecules or atoms are vibrating at a particular rate , so as to send out , or to ...
... bright line in the spectrum of a celestial object . It tells the observer that within the limits of vision ( aided , if need be , by the telescope ) some molecules or atoms are vibrating at a particular rate , so as to send out , or to ...
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Términos y frases comunes
Admiral Smyth aërolites Aldebaran analysis appear astronomers belts bodies bright lines celestial circumstances cloud colour comet constitution corona corresponding dark lines Dawes disc distance double stars doubt earth earth's atmosphere eclipse enormous envelope eruption evidence exist fact favour Fraser's Magazine Fraunhofer lines gamut globe heat heat-rays height Huggins hydrogen inhabitants Jacob Island Jupiter less light lunar Mars masses matter meteor systems meteorites miles per second millions of miles moon moon's motion observed Ocean orbit pass peculiarity phenomena photosphere planet planetary portion present Professor Tyndall prominences question radiations rays recognised reflector regarded regions remarkable researches resembling respecting Saturn Secchi seems seen shining shooting-stars sidereal solar appendage solar atmosphere solar spectrum solar system sound space spectra spectroscope spots STAR ATLAS sun's supposed surface tail telescope terrestrial theory tion Uranus vapour velocity Venus visible worlds zodiacal light zone
Pasajes populares
Página 54 - Thou makest thine appeal to me: I bring to life, I bring to death: The spirit does but mean the breath: I know no more.
Página 337 - The Orbs Around Us; a Series of Familiar Essays on the Moon and Planets, Meteors and Comets, the Sun and Coloured Pairs of Suns.
Página 316 - First the flaming Red Sprung vivid forth ; the tawny Orange next ; And next delicious Yellow ; by whose side Fell the kind beams of all-refreshing Green ; Then the pure Blue, that swells autumnal skies Ethereal...
Página 287 - The inference is that the meteorite had been extruded from a dense atmosphere of hydrogen gas, for which we must look beyond the light cometary matter floating about within the limits of our solar system.
Página 337 - Other Worlds than Ours ; The Plurality of Worlds Studied under the Light of Recent Scientific Researches.
Página 221 - I have since used quinine topically in several cases of simple leucorrhea always with great success — in fact, I do not know of a single instance in which it has failed or in which quinism has been produced. It may be used in the form of douche or pessary. I adopt the latter form as being obviously the better one ; the drug has a better chance of closer and more continuous contact with the congested membrane. I prescribe...
Página 26 - It would require no inordinate thickening of the layer of vapor to double this absorption ; and it is perfectly evident that, with a protecting envelope of this kind, permitting the heat to enter but preventing its escape, a comfortable temperature might be obtained on the surface of our most distant planet.
Página 148 - Moharrem, (1202 of our era, and on the igth of October,) the stars appeared like waves upon the sky, towards the east and west ; they flew about like grasshoppers, and were dispersed from left to right; this lasted till daybreak; the people were alarmed.