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 297
s these lines become very exact meansof measuring short intervals of time. For example, in fig. 285 each of tlieseparate shocks producing the rolling sound of the letter R corresponds toabout 18 double vibrations of the tuning-fork, and consequently lasts about-^^ or about j^g of a second. 290.…
Physics
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