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On the other hand, if the area of air breakdown extends to another conductor at a unique voltage it creates a conductive path between the...

This insulator, a kind produced in late 1896 and early 1897 by the Imperial Porcelain Operates of Trenton, New Jersey, was utilised in th...

A lot of of the glasshouses that produced insulators also made bottles, fruit jars and other glassware. Many, but not all, well known sty...