A text book of physics, for the use of students of science and engineering (1918)
Duncan, John, d. 1941, Starling, Sydney George, 1873- · London Macmillan · leaf 762
Fig. 680.—Transverse vibration of a spring. … Fig. 681.—Electrically-driven tuning-fork. Electrically driven tuning-fork.—For many purposes it is desirable to maintain a tuning-fork in continuous vibration without having to bow, or strike it. The fork is clamped to a stand and is provided with a short metal tongue A (Fig. 681) having a…
Physics
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