Tesla principle

Historically, the term Tesla principle was used to describe (amongst other things) certain reversible processes invented by Nikola Tesla. ["Electrical Experimenter", January 1919. p. 615. [http://www.teslasociety.com/pictures/teslaxc4.jpg] ] However, this phrase is no longer in conventional use. It was developed during Tesla's research in alternating currents where the current's magnitude and direction varied cyclically.

A reversible process in engineering is a process or operation of a system or device such that a net reverse in operation will accomplish the converse of the original function. The principle was that some systems could be reversed and operated in a complementary manner. During a demonstration of the Tesla turbine, the disks revolved and machinery fastened to the shaft was operated by the engine. If the turbine's operation was reversed, the disks acted as a pump. ["Tesla's New Monarch of Machines". "New York Herald Tribune", Oct. 15, 1911. (Available online. Tesla Engine Builders Association. [http://my.execpc.com/~teba/main.html#TE] )]

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