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 763
on of the prong makes contact again at B, andthe process is repeated. The prongs of the fork thus receive impulsesdriving them together at regular intervals, determined by the forksown period, and the fork is maintained in continuous vibration.Care has to be taken in adjusting the position of B so… … Fig. 682.—Stroboscopic method of obtaining frequency. the stroboscopic method, is sometimes used. It depends upon thefact that a regular body in rotation, such as a wheel, appears tobe stationary if intermittently illuminated, the instants of illumina-tion being such that the wheel turns through…
Physics
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
