Magazine - Page 101

At the recent meeting of the American Institute of Electrical Engineers, Nikola Tesla, of Columbia College, New York, described and illustrated in a lecture some of the most remarkable discoveries in...

So great was the interest and enthusiasm with which Mr. Tesla's first lecture and experiments were received at the Royal Institution that he complied with the urgent request to repeat the same, and at...

Anyone who, like myself, has had the pleasure of witnessing the beautiful demonstrations with vibrating diaphragms which Prof. Bjerknes, exhibited in person at the Paris Exposition in 1880, must have...

If a delicately and pivoted and well-balanced metal disc or cylinder be placed in a proper plating solution midway between the anode and cathode, one half of the disc becomes electro positive and the...

About a year and a half ago while engaged in the study of alternate currents of short period, it occurred to me that such currents could be obtained by rotating charged surfaces in close proximity to...

Sir — In your issue of March 6 I find the passage: "Mr. Kapp described the position as it exists. He showed how Ferraris first of all pointed out the right way to get an alternating-current motor that...

I cannot pass without comment the note of Prof. Thomson in your issue of April 1, although I dislike very much to engage in a prolonged controversy. I would gladly let Prof. Thomson have the last word...

Fifteen or sixteen years ago, when I was pursuing my course at the college, I was told by an eminent physicist that a motor could not be operated without the use of brushes and commutators, or...

In The Electrical Engineer issue of 11th inst., I find a note of Prof. Elihu Thomson relating to some of my experiments with alternating currents of very high frequency. Prof. Thomson calls the...

Alternate current machines of high frequency; curious experiments with Geissler tubes and lamps; an exploded notion; noiseless alternating arcs; constant current and constant potential; interested...