Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 213
sfacing each other and a shortdistance apart (Fig. 238). Nowvibrate one of them vigorouslyby means of a bow or by strikingwith a soft mallet (a rubberstopper on a handle), and afterit has been sounding for a few seconflq brino- it to rest bv Fia. 238.—Two tunins-forks arranged toSeCOnUb Uling lU W… … ILLUSTHATIONS OF SYMrATHETIC VIBRATIONS—BEATS 203 This ilhistrates tlie plienomenon of sympathetic vibrations.The first fork sets up vibrations in tlie resonance box on wliichit is niounted, and tliis produces vibrations in tlie inclosedair column. The waves proceed from it, and on reaching…
Physics
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