Tyndall, John, 1820-1893 · London : Longmans, Green · leaf 154
d, e, are shown the modes ofdivision corresponding to this series of numbers. You o 9 \ { / Fia. 58. /\ ! ! ; \//\ I) [I will not fail to observe that these overtones of a vibratingrod rise far more rapidly in pitch than the harmonics of astring. FIGURES OF THE KALEIDOPHONE. 133 Other forms of… … the subjoined figures first obtained by Sir C. Wheatstone.They may be produced by illuminating the bead withsunlight, or with the light of the lamp or candle. Thescrolls, moreover, may be doubled by employing twc 134 lp:cture IV. candles instead of one. Two spots of light then appear,each of which…
Sound
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