Light Science for Leisure Hours, a Series of Familiar Essays on Scientific Subjects Natural Phenomena EtcLongmans, Green, and Company, 1871 - 316 páginas |
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Página 12
... brilliant aurora in the winter of 1867-68 to analyse the spectrum of the coloured streamers . A single bright line only was seen ! Otto Struve , an eminent Russian astronomer , shortly after- wards made confirmatory observations . At ...
... brilliant aurora in the winter of 1867-68 to analyse the spectrum of the coloured streamers . A single bright line only was seen ! Otto Struve , an eminent Russian astronomer , shortly after- wards made confirmatory observations . At ...
Página 13
... bright line precisely in the position of the line in the auroral spectrum . And mere proximity has no significance whatever in spectroscopic analysis . Two elements differing as much from each other in character as iron and hydrogen may ...
... bright line precisely in the position of the line in the auroral spectrum . And mere proximity has no significance whatever in spectroscopic analysis . Two elements differing as much from each other in character as iron and hydrogen may ...
Página 16
... bright line , and this bright line is the same that is seen in the spectrum of the aurora borealis ! How are we to understand this most surprising result ? Remembering that the aurora is undoubtedly a terrestrial light , whencesoever it ...
... bright line , and this bright line is the same that is seen in the spectrum of the aurora borealis ! How are we to understand this most surprising result ? Remembering that the aurora is undoubtedly a terrestrial light , whencesoever it ...
Página 19
... lines appear , but their relative brightness is different . The brightest line of the auroral spectrum is faint in the spectrum of the corona , while the latter exhibits a bright line where the former has a faint one . News has also ...
... lines appear , but their relative brightness is different . The brightest line of the auroral spectrum is faint in the spectrum of the corona , while the latter exhibits a bright line where the former has a faint one . News has also ...
Outras edições - Ver tudo
Light Science for Leisure Hours: A Series of Familiar Essays on Scientific ... Richard Anthony Proctor Visualização integral - 1871 |
Light Science for Leisure Hours: A Series of Familiar Essays on Scientific ... Richard Anthony Proctor Visualização integral - 1895 |
Light Science for Leisure Hours: A Series of Familiar Essays on Scientific ... Richard Anthony Proctor Visualização integral - 1871 |
Palavras e frases frequentes
appearance arctic Arica astronomers Atlantic aurora auroral light Author bright line cause chromosphere circumstance coloured comet consider continually course crater Crown 8vo Crozet Island cyclones depths destructive disturbance doubt earth earthquake eclipse effects Encke enormous equator equatorial eruption evidence fact feet force gradually Greenland Gulf Stream Halley's method heat HISTORY horse Illustrations interesting Ischia islands John Herschel JOHN STUART MILL land lava length less magnetic needle Maps Maury miles moon motion mountain nature nearly North Pole northern observations ocean odds pass peculiarity planet Post 8vo present reached recognised region remarkable result revised says scientific sea-wave Second Edition seems seen ship shores Sir Charles Lyell solar spectroscope spectrum Spitzbergen storm sun's distance supposed surface swept terrestrial theory tion transit transit of Venus vapour Venus Vesuvius volcanic vols voyagers westerly whole winds Woodcuts zodiacal light
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