The new imperial encyclopaedia, or, Dictionary of the sciences and arts : comprehending also the whole circle of miscellaneous literature ... . soon afterit happened, and before any person had returned from we have no certainty of this. The Cliincje, wlien they sendcouriers on the great canal, or when any great man travels there,make signals by lire from one days journey to another, to haveevery thing prepared ; and most of the barbarous nations useJformerly to give the alarm of war by fin s lighted on the hills orrising grounds, Polybius calls the different instruments used bythe a
The new imperial encyclopaedia, or, Dictionary of the sciences and arts : comprehending also the whole circle of miscellaneous literature ... . soon afterit happened, and before any person had returned from we have no certainty of this. The Cliincje, wlien they sendcouriers on the great canal, or when any great man travels there,make signals by lire from one days journey to another, to haveevery thing prepared ; and most of the barbarous nations useJformerly to give the alarm of war by fin s lighted on the hills orrising grounds, Polybius calls the different instruments used bythe ancients for communicating information i:ai<rii«i, pvrsia., be-cause the signals w ere always made by fire. The most ingeniousof the moderns had not thought of such a machine as a telegraphtill IGG3, when the Marquis of Worce-ter, in his Century of In-ventions, affirmed that he had a method by wliich,at a wiiidov\, as far as eye can discover black from while, a manmay hold iliscourse with his correspondent, without noise maile ornotice taken, being according to occasion given, or means atford- ?V a c ojp:e s. ^.^. hi/ J tiuiAee Jdbicn h^ - TEL 701 TEL ed, e re nati, aiul no need of provision before hand; thoughmuch better if foreseen, and course taken bjr mutual consent ofiiarties. This could be done only by means of a telegraph, whichin the next sentence is declared to have been rendered so perfect,that by means of it the correspondence could be carried on bynight as well as by day, though as dark as pitch is black. About40 yeai-s after lliis, M. Aniontons proposed a telegraph, but it wasrot till the French Revolution that the telegraph was applied touseful purposes. M. Chappe improved the telegraph first used bythe French about the end of 1793, probably from the invention ofthe learned Mr. Hooke. The manner of using this telegraph wasas follows: at the (irst station, which was on the roof of the pa-lace of the Louvre at Paris, M. C
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