Experimenter

(518) Lionel Stevens, Sidney, Australia. inquires: Q. 1. What is the principle of operation of the so-called Tesla coil? A. 1. The principle upon which the Tesla coil is based consists in introducing...

By Kenneth M. Swezey One of the greatest advances which the future may know undoubtedly lies within the realm of high frequency currents of electricity. Wireless telegraphy and telephony have already...