 I obtained a tolerably bright solar spectrum, and brought a flame coloured by sodium vapour in front of fbe slit. I then saw the dark lines D change into bright ones. The flame of a Bunsen's lamp threw the bright sodium lines upon the solar spectrum with...  Modern Astronomy, Its Rise and Progress - Page 31by Hector Macpherson - 1926 - 196 pagesFull view - About this book
 | 1862 - 620 pages
...solution of the problem regarding the existence of sodium and other metals in the sun : — ' In order to test in the most direct manner possible the frequently...brought a flame coloured by sodium vapour in front of fbe slit. I then saw the dark lines D change into bright ones. The flame of a Bunsen's lamp threw the... | |
 | 1862 - 648 pages
...to the solution of the problem regarding the existence of sodium and other metals in the " In order to test in the most direct manner possible the frequently...tolerably bright solar spectrum, and brought a flame colored by sodium vapor in front of the slit. I then saw the dark lines D change into bright ones.... | |
 | 1862 - 618 pages
...solution of the problem regarding the existence of sodium and other metals in the sun : — ' In order to test in the most direct manner possible the frequently...fact of the coincidence of the sodium lines with the hnes D, I obtained a tolerably bright solar spectrum, and brought a flame coloured by sodium vapour... | |
 | 1863 - 376 pages
...solution of the problem regarding the existence of sodium and other metals in the sun : - — "In order to test in the most direct manner possible the frequently...tolerably bright solar spectrum,- and brought a flame colored by sodium vapor in front of the slit. I then saw the dark lines D change into bright ones.... | |
 | sir Henry Enfield Roscoe - 1869 - 396 pages
...sodium and other metals in the sun. "In order," says Kirchhoff, for I will now give his own words, " to test in the most direct manner possible the frequently...tolerably bright solar spectrum, and brought a flame 1 Berlin Acad. Bericht. 1859, 662; PhiL Mag. Fourth Series, xix. 193, xx. 1. coloured by sodium vapour... | |
 | Sir Norman Lockyer - 1873 - 742 pages
...the following remarkable experiment : — " In order," says Kirchhoff, for these are his own words, " to test in the most direct manner possible the frequently...the coincidence of the sodium lines with the lines D "—(that is to say, of the bright double lines of sodium in the yellow part of the spectrum, with... | |
 | Henry E. Roscoe - 1869 - 372 pages
...sodium and other metals in the sun. " In order," says Kirchhoff, for I will now give his own words, "to test in the most direct manner possible the frequently...the coincidence of the sodium lines with the lines r>, I obtained a tolerably bright solar spectrum, and brought a flame coloured by sodium vapour in... | |
 | John Henry Pepper - 1869 - 722 pages
...solar spectrum, is thus described by Kirchoff : 0 In order to test by direct experiment the truth of the frequently asserted fact of the coincidence of the sodium lines with the lines D (Frauenhofer), I obtained a tolerably bright solar spectrum, and brought a flame coloured by sodium... | |
 | 1873 - 828 pages
...solution of the mystery of the black lines of the solar spectrum, Professor Kirchhoff says : "In order to test in the most direct manner possible the frequently...tolerably bright solar spectrum, and brought a flame colored by sodium in front of the slit I then saw the dark lines D change into bright ones. The flame... | |
 | Lucius Edwin Smith, Henry Griggs Weston - 1870 - 528 pages
...own words may well be quoted to describe it "In order, (he says), to test, in the most direct manner, the frequently asserted fact of the coincidence of...tolerably bright solar spectrum, and brought a flame colored by sodium vapor in front of the slit. I then saw the dark lines D change into brighter ones.... | |
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