Discoveries and inventions of the nineteenth century (1905)
Routledge, Robert · London : G. Routledge and Sons · leaf 561
FlG. 271.—A Magnet producing a Current. netized and demagnetized by simply bringing near one end of it the poleof a permanent magnet (see page 484). Upon this principle many ingenious … Fig. 272.—darkens Magneto-electric Machine. machines have been constructed for producing electric currents by therelative motions of magnets and of soft iron cores surrounded by wires. 5IO ELECTRICITY. Clarkes machine is shoAvn in Fig. 272. A is a powerful steel magnetfixed to the upright, A brass…
Inventions
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