Elementary treatise on physics, experimental and applied : for the use of colleges and schools (1906)
Ganot, A. (Adolphe), 1804-1887, Atkinson, Edmund, 1831-1901, Reinold, A. W. (Arnold William), 1843-1921 · New York : Wood · leaf 284
uch vapours may l)e determined. 280. Chemical harmonicon.—The air in an open tube may be made togive a sound by means of a luminous jet of hydrogen, coal gas, «.\;c. Whena glass tube about 12 inches long is held over a lighted jet of hydrogen(fig. 268), a note is produced \\ hich, if the tube is in… … combinations of the atmospheric oxygen with the issuing The apparatus is called the chemical harmonicou. The note depends on the size of the flame and the length of the tube : with a long tube, by varying the position of the jet in the tube, the series of notes, in the ratio i : 2 : 3 : 4 : 5, is…
Physics
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