Vietnam or Thailand ? Vote for the TOP Country of the Week !
Updated: May 5, 2025
We sold glass insulators by the hundred as patent American teacups, and brackets by the thousand as prepared American kindling-wood. We offered soap and candles as premiums to anybody who would buy our salt pork and dried apples, and taught the natives how to make cooling drinks and hot biscuits, in order to create a demand for our redundant lime-juice and baking-powder.
Crunching his steel spurs into the crisp pine wood of the lighting-poles, he carelessly ascended to the place of humming wires and red cross-bars and green-glass insulators, while crowds of two and three small boys stared in awe from below.
Distinctions may be insulators in logic as much as they like, but in life distinct things can and do commune together every moment.
Attempts to insulate the line wire were limited to coating it with tar or smearing it with wax for the benefit of all the bees in the neighborhood. The farthest western reach of the telegraph lines in 1847 was Pittsburg, with three-ply iron wire mounted on square glass insulators with a little wooden pentroof for protection.
Our English workmen screw the earthenware insulators on the posts, strain the wire, and order the Arabs about by the generic term of Johnny. I find W has nothing for me to do; and that in fact no one has anything to do. Some instruments for testing have stuck at Lyons, some at Cagliari; and nothing can be done or, at any rate, is done.
If, however, we attach a glass handle to the rod and hold it by that whilst rubbing it, the electricity cannot then escape to the earth, and the brass rod will attract the pith-ball. All bodies are conductors of electricity in some degree, but they vary so enormously in this respect that it has been found convenient to divide them into two extreme classes conductors and insulators.
While the Paris road was of an entirely temporary character, that of Frankfort has been built according to extremely well studied plans, and after much light having been thrown upon the question of electric traction by three years of new experiments. The two grooved tubes are suspended from insulators fixed upon external cast iron supports.
As von Hindenburg retreated he left complete destruction in his wake, roads, bridges, railroad tracks, water towers, railway stations, all were destroyed; even telegraph posts, broken or sawn through, and insulators broken to bits. It was now the turn of Russia to make a premature advance, and to pay for it.
These are the insulators, and if it were not for them, no electricity would remain on the surface; as it is, electricity is hard enough to keep in charge, even with the best insulators. And we know sometimes what it is to have life and power pass into us from above, but we don't know how to retain it, because we have never learnt true retirement of heart and insulation of life.
It is remarkable that the best conductors of electricity, that is to say, the substances which offer least resistance to its passage, for instance the metals, are also the best conductors of heat, and that insulators made red hot become conductors. Air is an excellent insulator, and hence we are able to perform our experiments on frictional electricity in it.
Word Of The Day
Others Looking