| 单词 | electrostatic machine |
| 例句 | We have been used to look upon an electrostatic machine as a plaything, and somehow we couple with it the idea of the inefficient and impractical. The inventions, researches and writings of Nikola Tesla With special reference to his work in polyphase currents and high potential lighting 2012-03-28T02:00:22.660Z When mounted upon the conductor of an electrostatic machine, the vane rotates in a direction opposite that of the points. Hawkins Electrical Guide, Number One Questions, Answers, & Illustrations, A Progressive Course of Study for Engineers, Electricians, Students and Those Desiring to acquire a Working Knowledge of Electricity and its Applications 2011-12-24T03:07:54.823Z Holtz constructed and described a large number of influence machines which were for a long time considered the most advanced development of this type of electrostatic machine. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" 2011-01-29T03:00:23.777Z In 1786, Galvani first observed the twitching of the legs of a dissected frog produced by discharges of a nearby electrostatic machine, thereby revealing still another “effect” of electricity. The Earliest Electromagnetic Instruments Williamson suggested the use of gigantic electrostatic machines, but the attempts were fruitless. Scientific American Supplement, No. 841, February 13, 1892 |
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