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Books Books 1 - 10 of 37 on ... brilliancy. In order to find out the extent to which the intensity of the solar....
" ... brilliancy. In order to find out the extent to which the intensity of the solar spectrum could be increased without impairing the distinctness of the sodium lines, I allowed the full sunlight to shine through the sodium flame, and to my astonishment... "
Nature - Page 89
edited by - 1873
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The Edinburgh Review: Or Critical Journal, Volume 116

Sydney Smith, Lord Francis Jeffrey Jeffrey, Macvey Napier, William Empson, Sir George Cornewall Lewis, Arthur Ralph Douglas Elliot (Hon.), Henry Reeve, Harold Cox - 1862
...distinctness of the sodium lines, I allowed the full sunlight to shine through the sodium flame, and to my astonishment I saw that the dark lines D appeared with an extraordinary degree of clearness. I then exchanged the sunlight for the Drummond's, or oxy-hydrogen lime-light, which, like that of all...
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The Living Age ..., Volume 75

1862
...distinctness of the sodium lines, I allowed the full sunlight to shine through the sodium flame, and to my astonishment I saw that the dark lines D appeared with an extraordinary degree of clearness. I then exchanged the sunlight for the Drummond's or oxy-hydrogen lime-light, which, like that of all...
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Researches on the solar spectrum, and the spectra of the chemical elements ...

Gustav Robert Kirchhoff - 1862
...the sodium lines, I allowed the full sunlight to shine through the sodium flame upon the slit, and, to my astonishment, I saw that the dark lines D appeared with an extraordinary degree of clearness. I then exchanged the sunlight for the Drummond's or oxyhydrogen lime-light, which, like that of all...
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The Annual of Scientific Discovery: Or, Year-book of Facts in Science and Art

Industrial arts - 1863
...distinctness of the sodium lines, I allowed the full sunlight to shine through the sodium flame, and to my astonishment I saw that the dark lines D appeared with an extraordinary degree of clearness. I then exchanged the sunlight for the Drummond's or oxyhydrogen lime-light, which, like that of all...
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The Sunbeam and the Spectrascope: Read Before the Albany Institute

Howard Townsend - Light - 1864 - 15 pages
...the distinctness of the sodium lines I allow the full sunlight to shine through the sodium flame and to my astonishment, I saw that the dark lines D appeared with an extraordinary degree of clearness. I then exchanged the sunlight for the Drummond's or oxyhydrogen lime light, which, like that of all...
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Chicago Medical Examiner, Volume 6

Medicine - 1865
...distinctnesss of the sodium lines, I allowed the full sunlight to fall through the sodium flame, and to my astonishment I saw that the dark lines D appeared with an extraordinary degree of clearness. I then exchanged the sunlight, for the Drummond or oxyhydrogen lime light, which like that of all incandescent...
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Gaillard's Medical Journal, Volume 1

Medicine - 1866
...distinctness of the sodium lines, I allowed the full sunlight to shine through the sodium flame and to my astonishment, I saw that the dark lines D appeared with an extraordinary dsgree of clearness. I then exchanged the sunlight for the Drummond s or oxy-hydrogen lime light, which,...
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A Dictionary of Chemistry and the Allied Branches of Other Sciences, Volume 5

Henry Watts - Chemistry - 1868
...the sodium-lines, I allowed the full sunlight to shine through the sodium-flame upon the slit, and, to my astonishment, I saw that the dark lines D appeared with an extraordinary drgree of clearness. I then exchanged the sunlight for the Drummond's light, giving a continuous spectrum....
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Nature, Volume 8

Sir Norman Lockyer - Electronic journals - 1873
...of wave-length of the hydrogen in the atmosphere ot Sirius, i. Hydrogen at atmospheric pressure ; 2, Solar Spectrum Line F ; 3, Spectrum of Sirius ; 4,...from the solar spectrum, but the two lines D were now so utterly powerless compared with the light of the sun, that they actually appeared as black lines,...
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Spectrum Analysis: Six Lectures, Delivered in 1868, Before the Society of ...

Henry Enfield Roscoe - Spectrum analysis - 1870 - 404 pages
...distinctness of the sodium lines, I allowed the full sunlight to shine through the sodium flame, and to my astonishment I saw that the dark lines D appeared with an extraordinary degree of clearness. " I then exchanged the sunlight for the Drummond's or oxyhydrogcn lime-light, which, like that of all...
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