A natural philosophy : embracing the most recent discoveries in the various branches of physics, and exhibiting the application of scientific principles in everyday life .. (1899)
Quackenbos, G. P. (George Payn), 1826-1881 · New York, Cincinnati [etc.], American book company · leaf 364
tracted or released. When it is attracted, the otherend of the lever, which is furnished with a point, is madeto indent a strip of paper passed in front of it by machinery,with dots or dashes, according to the time that the opera-tor by the battery keeps the circuit complete. If, now,different… … the world chiefly indebted for the Telegraph ? 916. State the principles on -whichMorses Telegraph operates. Describe Morses recording apparatus, and its mode of 360 ELECTRO-MAGNETISM. A B is the electro-magnet, connected with the distant battery by the wiresL, M, which are raised on poles and…
Physics
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