SMC219Y1 Lecture Notes - Lecture 19: Wireless Telegraphy, Mass Media, Nikola Tesla
26 Jan 2017
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1890s time of inventions and miracles: telegraph and telephones (1870s) were just invented, people began to expect great things they were astounded by the telegraph, by the time of the radio, people were expecting something great (wireless telegraphy) Radio depended on radiowaves: even before the technology existed, the imagination of it did, a lot of people (cid:449)orked to de(cid:448)elop (cid:862)(cid:449)ireless telegraph(cid:455)(cid:863, everyone saw it coming. B(cid:455) (cid:1005)9(cid:1005)(cid:1004), the(cid:455) had the te(cid:272)h(cid:374)olog(cid:455), (cid:271)ut it (cid:449)as(cid:374)"t pra(cid:272)ti(cid:272)al or eas(cid:455) World war 1 both helped and hindered the development of the radio. Xwa first commercial radio station (experimental wireless apparatus: marconi 1919 in montreal, very first radio station in the world was in canada, 1922 over 600 radio station in the u. s. was there, technology, mental attitude was all there. War kept it back for a while, but improved the technology, and after the war it exploded and became extremely popular.
