Discoveries and inventions of the nineteenth century (1905)
Routledge, Robert · London : G. Routledge and Sons · leaf 632
Fig. 301.—Atlantic Telegraph Cable. before this intensity would be reached, and then, after putting the cable to>earth; he would have to wait some seconds before the current had flowedout. Several seconds would, therefore, be taken up in the transmission of … •6 8 10rtME IN SECONDS, Fig. 302, one signal, whereas by means of the mirror galvanometer about one-four-teenth of this time suffices, and the syphon recorder will write the messages,twelve times as fast as the Morse instrument. The cause of the gradualrise of the current at the distant end of a…
Inventions
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