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Updated: May 8, 2025
But it is the neighborhood of a good conductor, not a sheltering non-conductor, that affords safety. Some scientific men have advised a station of fifteen to forty feet from a tree, or such a position between several trees, but it has sometimes happened that such open spaces have received the bolt. In cities and villages, likewise, open spaces are not found to be places of safety.
But I got over that difficulty by placing a bit of old carpet under my moulding boxes as a non-conductor of sound, so that no ramming could afterwards be heard. My dear mother also was afraid that I should damage my health by working so continuously.
I am able to resist the tree men, book agents, etc., and the lightning-rod man, for a wonder, found me a decided non-conductor; but I can see how my weaker brothers failed. I have settled a lawsuit rather than fight it out when I knew law and justice were on my side. My wife has often said that I never knew when I was imposed upon.
Certain bodies, such as the metals, convey it, and are called conductors; certain others, such as glass and porcelain, arrest it, and are called insulators. It is for this reason that the wires of the telegraph are supported by a non-conductor, for if not, the electric current would pass into the earth by the first post and never reach its final destination.
There were indications, before we left the earth, as to what might be expected. The lower breeze took us in another direction as we rose, but a gentle, whirling current higher up got us into the vortex of a highly charged cloud.... We had to prove by absolute experience whether the balloon was insulated and a non-conductor.
Glass being so well known as an excellent non-conductor, some have been led to suppose it effectual in warding off the disruptive stroke. Hence chambers or cases of glass have actually been made for the use of individuals who were apt to be overcome with terror during the prevalence of a thunderstorm.
This neutralizing is accomplished by screening off the gravitational pull when interposed between the Earth and the matter sought to be made immune from the attraction, just as you would insulate against the flow of electricity by interposing a non-conductor between two conducting metals.
The first point, therefore, to attend to is that the burner shall be made of a good non-conductor.
Electricity may be the antecedent, in the same sense as the mechanical motion of a bullet may be the antecedent of the heat developed when the latter strikes the target; and if it be granted that a vacuum is a perfect non-conductor of electricity, then it is manifestly improper to speak of any phenomenon in the ether as an electrical phenomenon.
Thus, the paper passed between the drum and the two small wheels, and, as dry paper is a non-conductor, current was prevented from passing until a perforation was reached.
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