Electrical Engineer

If the terminals or plates of a condenser be connected with two points of a circuit, the potentials of which are made to rise and fall in rapid succession, the condenser allows the passage, or, more...

The Tesla motor is to be introduced in the coal mines of the State of New York. The management of the Shawmut coal mines has just made a contract with the Westinghouse Electric Company for seven of...

On giving our secretary the title of this paper it was my purpose to treat the subject in a broader light, and to show the progressive steps in a series of experiments which led eventually to the type...

BY EDWARD P. THOMPSON, M. E. One of the most important facts necessary in order to determine the nature of the X-rays is that which will prove their source. In the first place Prof. Röntgen alleges...

Last week Mr. Tesla gave some of the results of his experiments in the domain of Röntgen rays, before the New York Academy of Sciences, and showed some of his latest types of high frequency generators...

A series of experiments extending over the past six weeks has at length yielded conclusive evidence and enabled the source and distribution of the ray to be mapped out around the entire tube with...

On another page we give a brief description of one form of Mr. Tesla's mechanico-electric oscillator, which formed part of his exhibit in Chicago. It would be hardly possible at this moment to foresee...

It has now become a common practice to run arc lamps by alternating or pulsating, as distinguished from continuous, currents; but an objection which has been raised to such systems exists in the fact...

About three years ago I had the pleasure of bringing to the attention of the American Institute of Electrical Engineers at its annual meeting, certain phenomena of the repulsive action between...

An extraordinary general meeting of the Institution of Electrical Engineers is to be held, by kind permission of the managers, at the Royal Institution, Albemarle-street, on Wednesday, 3rd February...