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 132
erior tone; and the upper one is acombination of the fundamental with the first two superiortones. THE CHRONOGRAPH. 11/ VIII. THE CHRONOGRAPH. This is an instrument which is used for the measurement ofsmall intervals of time by means of an electric interrupter andtuning fork. The arrangement is… … Fig. 19. interrupter, and then through two electro magnets situated oneon each side of the fork, as shewn in the figure. To the end ofone of the prongs of this fork is attached a writer of brass whichrests against a piece of smoked paper, so arranged in a roll thatit can be drawn along continuously…
Physics
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