Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 699
essor S. F. B. Morse, employing the electro-magnet, wasintroduced upon a line between Baltimore and Washington, the caveat to his patent bearing tlie dateof October, 1837. The first suggestion of this form of telegraph is claimed to have been made by Pro-fessor Morse in 1832, and also, in its… … Vescription of the telrgrapli.—Fig. 3390 represents a series of twelve pairs of Groves battery, suchas is generally used in connection with the telcgrapli. When a plate of platina and a plate of zinc arepLiced in an acid solution, a current tends to flow from the platina to the zinc, througli any…
Mechanical engineering · Mechanics · Engineering
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