ELECTRIC LAMP OPERATES BY THE ARMORLSYSTEM. by the inventors in the course of their demonstrationsthat no other waves affect a certain receiver unless it isin harmony with the transmitter. Several receivershave been placed at different points, each tuned to acertain distinct pitch. Electric… … MODEL OF SUBMARINE BOAT CONTROLLED BY WIRELESS TELEGRAPHY. been discharged from a transmitter, and the impulseshave not affected any of the receivers to the slightestextent in their passage, but have only entered the par-ticular apparatus, the receiver of which was in perfectharmony with the…
Canal · Panama · Nicaragua · Munn · Feet · Scientific American · Motor · Power transmission · Flood waters · Isthmian canal · Shawenegan falls · Summit level · Sewing machine · Horse power · San juan · Total length
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