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Insulator   /ˈɪnsəlˌeɪtər/   Listen
Insulator

noun
1.
A material such as glass or porcelain with negligible electrical or thermal conductivity.  Synonyms: dielectric, nonconductor.






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"Insulator" Quotes from Famous Books



... upon block insulators supported upon malleable iron castings. Castings of the same material are used to secure the contact rail in position upon the insulators. A photograph of the insulator with its castings is ...
— The New York Subway - Its Construction and Equipment • Anonymous

... crowded close about him at the telegraph-window while he interpreted with unconscious originality the wonders of electricity. Their eyes rose slowly from the window up and out along the ascending wires to where they mounted the poles and eastward and westward leaped away sinking and rising from insulator to insulator. One of the party pointed at these green dots of glass and murmured a question, and the leader's wife laid her small hand softly upon his arm to check the energy of his utterance as he said, audibly to all on the platform, and with a ...
— Bonaventure - A Prose Pastoral of Acadian Louisiana • George Washington Cable

... this—' said Mr Cooper, laying his hand on the globe, and then drawing it away hastily. 'Whew! Holds the heat, doesn't it, to a surprising degree, Mr Humphreys. I suppose this metal—copper, isn't it?—would be an insulator or conductor, or whatever ...
— Ghost Stories of an Antiquary - Part 2: More Ghost Stories • Montague Rhodes James

... 4 oz. sulphuric acid. Do not add the acid too quickly or the heat generated may break the vessel containing the solution. Then pour the solution into the battery jar, until it is within 3 in. of the top. Thread the wire holding the zinc through the porcelain insulator of the carbon cylinder and also through the wire connector. Pull the zinc up as far as it will go and tighten the lower thumb screw so that it holds the wire secure. Place the carbon in the jar. If the solution touches the zinc, some of it should be poured out. To determine ...
— The Boy Mechanic: Volume 1 - 700 Things For Boys To Do • Popular Mechanics

... observing conduction in simple circumstances. But this means has now been supplied in the discovery of the X rays. Suppose we pass through some gas at ordinary pressure, such as hydrogen, a pencil of X rays. The gas, which till then has behaved as a perfect insulator,[29] suddenly acquires a remarkable conductivity. If into this hydrogen two metallic electrodes in communication with the two poles of a battery are introduced, a current is set up in very special conditions which remind us, when ...
— The New Physics and Its Evolution • Lucien Poincare

... possible direction as though the terminals were perfectly independent of each other. As the sparks would soon destroy the insulation it is necessary to prevent them. This is best done by immersing the coil in a good liquid insulator, such as boiled-out oil. Immersion in a liquid may be considered almost an absolute necessity for the continued and successful working ...
— Experiments with Alternate Currents of High Potential and High - Frequency • Nikola Tesla



Words linked to "Insulator" :   material, insulate, glass wool, rock wool, bushing, mineral wool, stuff, conductor



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