 In other cases dark lines are replaced by bright ones, as in the well-known instance of the electric spark between metallic surfaces. The occurrence of lines, whether bright or dark, is hence connected with the chemical nature of the substance producing...  The American Journal of Science and Arts - Page 2461858Full view - About this book
 | Industrial arts - 1859 - 448 pages
...burning of the carbon, but must be attributed to the disengagement of the nitrogen. . In other coses dark lines are replaced by bright ones, as in the...between metallic surfaces. The occurrence of lines, луЬеЛег bright or dark, is hence connected with the chemical nature of the substance producing... | |
 | John Pringle Nichol - Physics - 1860 - 942 pages
...of the electric spark between metallic sut faces. The occurrence of lines, whether bright or daik, is hence connected with the chemical nature of the...examination than has yet been given them ; for by i heir aid we may be able to ascertain points of great interest in other departments of science. Thus,... | |
 | National Academy of Sciences (U.S.) - Scientists - 1877 - 764 pages
...analysis. In a subsequent memoir, written in 1857, Dr. Draper uses the following remarkable language : " In other cases dark lines are replaced by bright ones,...well-known instance of the electric spark between metallic electrodes. The occurrence of lines, whether bright or dark, is hence connected with the chemical nature... | |
 | National Academy of Sciences (U.S.) - Scientists - 1886 - 410 pages
...replaced by bright ones, as in the well-known instance of the electric spark between metallic electrodes. The occurrence of lines, whether bright or dark, is...the chemical nature of the substance producing the fame. For this reason these lines merit a much more critical examination, for by their aid we may be... | |
 | John William Draper - Science - 1878 - 502 pages
...memoir, and, after speaking of the production of dark lines in the cyanogen flame, continue as follows:) In other cases dark lines are replaced by bright ones,...surfaces. The occurrence of lines, whether bright or dark^is hence connected with the chemical nature of the substance producing the flame. For this reason... | |
 | John William Draper - Science - 1878 - 496 pages
...between metallic surfaces. The occurrence of lines, whether bright or dark,iii hence connected unth the chemical nature of the substance producing the flame. For this reason these lines merit a much more critical examination than has yet been given to them, for by their aid... | |
 | Heinrich Kayser - Spectrum analysis - 1900 - 820 pages
...the nitrogen they must be attributed. — In other cases dark lines are replaced by bright ones. äs in the well-known instance of the electric spark between metallic surfaces. The occurrence of lines, wether bright or dark, is hence connected with the chemical nature of the substance producing the flame."... | |
 | Heinrich Kayser - Spectrum analysis - 1900 - 830 pages
...must be attributed. — In other cases dark lines are replaced by bright ones. äs in the well-kuown instance of the electric spark between metallic surfaces. The occurrence of lines, wether bright or dark, is hence connected with the chemical nature of the snbstance producing the flame."... | |
 | Matter - 1858 - 1152 pages
...relation to the burning of the carbon, but to the disengagement of the nitrogen they must be attributed. In other cases dark lines are replaced by bright ones, as in the well-known instance of the dectric spark between metallic surfaces. The occurrence of lines, whether bright or dark, is hence... | |
 | Physics - 1858 - 1142 pages
...the burning of the carbon, but to the disengagement of the nitrogen they must be attributed. In otber cases dark lines are replaced by bright ones, as in...they merit a much more critical examination than has been yet given to them, for by their aid we may be able to ascertain points of great interest in other... | |
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