Radio engineering principles,

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Gilbert undertook a number of careful electrical experiments, in the course of which he discovered that many substances other than amber, such as sulphur, wax, glass, etc., were capable of manifesting electrical properties.. that moisture prevented the electrification of all bodies, due to the now well-known fact that moisture impaired the insulation of such bodies. indiscriminately, whereas a magnet only attracted iron. founder of the electrical science. He used a system of dots and dashes, which later became standard throughout the world, known as Morse code.

Pages: 301

Publisher: McGraw-Hill Book Company, inc; 2nd edition (1928)


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