 ... of refrangibility of the double line D. Hence the presence of sodium in a source of light must tend to originate light of that quality. On the other hand, vapour of sodium in an atmosphere round a source, must have a great tendency to retain in itself,...  Handbuch der Spectroscopie - Page 91by Heinrich Kayser - 1900 - 8 pagesFull view - About this book
 | Florian Cajori - 1899 - 342 pages
...year 1849), in course of a conversation, explained the formation of absorption lines as follows : " Vapour of sodium must possess by its molecular structure a tendency to vibrate in the 1 W. VOIGT, Zum Geddchtniss von G. Kirchhoff, Gottingen, 1888, p. 9. periods corresponding to the degree... | |
 | William Thomson Baron Kelvin - 1904 - 848 pages
...and said he believed a mechanical explanation of the cause was to be had on some such principle as the following: — Vapour of sodium must possess by...tendency to vibrate in the periods corresponding to the degrees of refrangibility of the double line D. Hence the presence of sodium in a source of light must... | |
 | George Gabriel Stokes - 1904 - 391 pages
...and said he believed a mechanical explanation of the cause was to be had on some such principles as the following : — Vapour of sodium must possess...tendency to vibrate in the periods corresponding to the degrees of refrangibility of the double line D. Hence the presence of sodium in a source of light must... | |
 | William Thomson Baron Kelvin - 1904 - 734 pages
...explanation of the cause was to be had on some such principle as the following: — Vapour of Eodium must possess by its molecular structure a tendency to vibrate in the periods corresponding to the degrees of refrangibility of the double line D. Hence the presence of sodium in a source of light must... | |
 | 1901 - 926 pages
...Stokes' explanation of the coincidence of the dark D lines and the bright lines of sodium vapour thus : " Vapour of sodium must possess by its molecular structure...corresponding to the degree of refrangibility of the line D. Hence the presence of sodium in a source of light must tend to originate light of this quality.... | |
 | British Association for the Advancement of Science. Meeting - 1862 - 796 pages
...and said he believed a mechanical explanation of the cause was to be had on some such principles as the following: — Vapour of sodium must possess by...tendency to vibrate in the periods corresponding to the degrees of refrangibility of the double line D. Hence the presence of sodium in a source of light must... | |
 | Lord William Thomson Kelvin - 1904 - 732 pages
...and said he believed a mechanical explanation of the cause was to be had on some such principle as the following: — Vapour of sodium must possess by...tendency to vibrate in the periods corresponding to the degrees of refrangibility of the double line D. Hence the presence of sodium in a source of light must... | |
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