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Updated: May 27, 2025
Every department of mechanics was stimulated and benefited to an extraordinary degree. Copper for the circuits was more highly refined than ever before to secure the best conductivity, and purity was insisted on in every kind of insulation. Edison was intolerant of sham and shoddy, and nothing would satisfy him that could not stand cross-examination by microscope, test-tube, and galvanometer.
With a suppressed cry he made his way directly beneath, and at once saw that the insulation of both wires of the loop had been cut through. "Right! I was right!" exclaimed Jack jubilantly beneath his breath. "And I can see in a minute how it's done.
My apparatus went suddenly dead as Miko flung on his insulation. I lost my wits in the confusion: I should have instantly taken off my vibrations. There was interference: it showed in the dark space of the ventilator grid over Miko's doorway, a snapping in the air, there a swirl of sparks. I heard with my unaided ears Miko's roar over his insulation: "By God, they're listening!"
There was suddenly a new and terrific power in common use, and it was as slender, silent and unobtrusive as it was fatal. Insulation of the hands by the use of rubber gloves, and extreme care, are the means by which those who are called "linemen" a new industry protect themselves in their occupation. But there is a new commandment added to the list of those to be memorized by the body-politic.
While experimenting with a telephone along a telegraph line a curious phenomenon was noticed. The telephone experimenters heard music very clearly. They investigated and found that another telegraph wire, strung along the same poles, but at the usual distance and with the usual insulation, was being used for a test of Edison's musical telephone.
"Guess it'll be fairly good, though," said Curlie, working feverishly. "Only hope it didn't burn out the insulation on our aerials. Want to get her going again quick. Want to bad. Lot may depend on that." The insulation on the aerials was not burned out. After many minutes of nerve-racking labor they had the equipment together again and were ready to listen in.
Any more Cids, or Songs of Roland, or Nibelungens, or Kalewalas are out of the question, nay, anything at all like them; for the necessary insulation of race, of country, of religion, is impossible, even were it desirable.
To their left arms a strapped cylinder gave off a fan-shape area of insulation an almost invisible shield of protective barrage some five feet long. It showed as a faint glow of light; and in flight their left arms could swing it like a shield to protect their bodies.
The exceptions are England and Switzerland, whose intense nationality is due to insulation, and Holland, which was morally an island, cut off as it was from France by difference of language and antipathy of race, and from kindred Germany by the antagonism of institutions. A patriotism by the chart is a monster that the world ne'er saw.
They are, moreover, invisibly incrusted with a certain transparent varnish in order to render the insulation still more complete; and that otherwise, properly assisted, we may have, in even the most unfavourable weather, abundance of the electrical fire.
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