Henderson, C. Hanford (Charles Hanford), 1861-1941, Woodhull, John F. (John Francis), 1857-1941 · New York, D. Appleton and company · leaf 380
s known to the observer at the second station eitherby the flash or by an electric signal. Such experimentshave been repeated very often and in different parts of theworld, and while the results differ slightly, they all givenearly the same result, viz., about eleven hundred feet persecond. We may… … Fig. 250.—Sonometer. counting the seconds before the sound is heard calculateits distance. It is evident that loudness, pitch, or quality have noeffect upon velocity; for when we hear a band of musiciansplaying at a distance the loud tones and the soft tones, thetones of high pitch and low pitch,…
Physics
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
