A laboratory course in experimental physics (1896)
Loudon, W. J. (William James), McLennan, John Cunningham, joint author · New York and London, Macmillan and Co. · leaf 143
Fig. 27. of their vibrations studied by connecting their resonators allto a common gas jet. If forks forming a harmonic scale be chosen, one may com- 128 EXPERIMENTAL PHYSICS. bine them optically and see the effect which is obtained by theear with the apparatus of Helmholtz. Perhaps the most… … Fig. 28. shewing interference. The apparatus shewn above is constructedin accordance with the principle introduced by Herschel. VELOCITY OF SOUND IN AIR. 129 A tuning fork sends vibrations, reinforced by a resonator, to atube which, between its extremities, is divided into two branches,the length…
Physics
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