"Electric current" Quotes from Famous Books
... chain, one end of which passes over a sprocket wheel in the hoisting mechanism. On the lower end of the chain is hung an electro-magnet of sufficient magnetic strength to support the heaviest striking weights. When it is desired to drop the striking weight the electric current is broken and reversed by means of an automatic switch and current breaker. The height of drop may be regulated by setting at the desired height on one of the columns a tripping pin which throws the switch on the magnet and so breaks and ... — The Mechanical Properties of Wood • Samuel J. Record
... by surrounding them with bodies which did not conduct it; and in 1745 the Leyden jar was invented, which led to the knowledge that the force of electricity could be extended through an indefinite circuit. The French savants conveyed the electric current through a circuit of twelve ... — Beacon Lights of History, Volume XI • John Lord
... he had been distinguished for this faculty, variable with the state of the atmosphere. As a rule, the act of shaking hands was generally attended by a quivering sensation like that produced by an electric current, and contact with his tongue ... — Anomalies and Curiosities of Medicine • George M. Gould
... when a single shot startled the echoes of the rocks, and instant alertness passed like an electric current through the squadron. The advance guard, which had already entered the defile, consisted of three promising young Pathans from Denvil's troop; and anxiety for the fate of his favourites pricked the Boy to ... — Captain Desmond, V.C. • Maud Diver
... was rapidly fitted up as an impromptu radiographic department, the windows painted over and covered with thick paper, a stove introduced, and a dark-room contrived with the aid of a cupboard and two curtains. Electric current was obtained from a dynamo bolted on to the step of a twenty-horse-power car, and driven by a belt from the flywheel of the engine. The car stood out in the courtyard and snorted away, whilst we worked in the storeroom alongside. The coil and mercury break ... — A Surgeon in Belgium • Henry Sessions Souttar
|