WIRELESS a.
ting wire or wires between the transmitting and receiving stations. Although more or less successful researchers were made on the subject by Joseph Henry, Hertz, Oliver Lodge, and others, the first commercially successful system was that of Guglielmo Marconi, patented in March, 1897. Marconi employed electric waves of…
YOUNG MEN'S CHRISTIAN ASSOCIATION n.
rganizations throughout Europe and America formed an international body. The movement has successfully expanded not only among young men in general, but also specifically among railroad men, in the army and navy, with provision for Indians and negroes, and a full duplication of all the various lines of oepration in the…