Gage, Alfred P. (Alfred Payson), 1836-1903 · Boston, London, Ginn · leaf 626
Fig. 490. thus attracts attention. He next takesthe receiver B off the supporting hookand places it at his ear. When theweight is removed from the hook, thehook rises a little and throws thedynamo and bells out of the circuit,and at the same time introduces thereceiver B, the transmitter C, and the…
Physics
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