Popular science monthly . Whistle a tuneinto the trans-mitterandChar-lie will dance BATTIRT. side of the room falls off its perch pre-cisely as before. The explanation is thatthe sound from the gun has affected aform of telephone transmitter as it didin the other toys. here, howexer, result-ing in a jiggling of the birds perch, caus-ing it to lose its equilibrium and tofall off. In the fourth contrivance a dummyfigure is made to dance a jig in responseto a tune whistled or sung. Details ofthe toys workings are explained in thedrawing. Because whist led or vocal soundsare more delicate than the
Popular science monthly . Whistle a tuneinto the trans-mitterandChar-lie will dance BATTIRT. side of the room falls off its perch pre-cisely as before. The explanation is thatthe sound from the gun has affected aform of telephone transmitter as it didin the other toys. here, howexer, result-ing in a jiggling of the birds perch, caus-ing it to lose its equilibrium and tofall off. In the fourth contrivance a dummyfigure is made to dance a jig in responseto a tune whistled or sung. Details ofthe toys workings are explained in thedrawing. Because whist led or vocal soundsare more delicate than thenoise produced by clappinghands or theshooting of agun, it is neces-sary in this toyto insert a relayin the telephonetransmitter cir-cuit. The trans-mitter works therelay and the re-lay controls thedancing. In theother toys thetransmitter isdirectly con-trolled. The diimm>- produces a varietyof weird steps from a Charlie Chaplinshufifle to an old-fashioned Negro hoe-down dance. The application of the principle is onlylimited by the imagination and ingenuityof the inventors and manufac
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectscience, bookyear1872
