A History of Electric Telegraphy, to the Year 1837

E. & F. N. Spon, 1884 - 542 ページ

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64 ページ - Spirits, at the same time, are to be fired by a spark sent from side to side through the river without any other conductor than the water ; an experiment which we some time since performed to the amazement of many.
298 ページ - Certain effects of the induction of electrical currents have already been recognised and described : as those of magnetization ; Ampere's experiments of bringing a copper disc near to a flat spiral; his repetition with electromagnets of Arago's extraordinary experiments, and perhaps a few others. Still it appeared unlikely that these could be all the effects which induction by currents could produce; especially as, upon dispensing with iron...