Text-book of general physics, for the use of colleges and scientific schools (1899)
Hastings, Charles Sheldon · Boston: Ginn & company · leaf 581
ly at rest, so that it will be possible todistinguish a difference of intensity of the sound oppositethe points ilfand 0. If, however,there be any want of symmetry inthe figure, or homogeneity in therim, these nodes may slowly revolveabout the rim, producing the beatscommonly heard when a large… … Fig. 385. LISSAJOUSS OPTICAL TUXIXG. 571 in Fig. 385. The tones vary with the thickness of the rimnear the mouth, technically known as the sound bow. Abell may he tuned to a certain extent by chipping away aportion of the metal, hut the pitch of the fundamental canbe determined only by copying a…
Physics
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