Scientific American Supplement, No. 443, June 28, 1884
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In our eReader you can find the full English version of the book. Read Scientific American Supplement, No. 443, June 28, 1884 Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Scientific American Supplement, No. 443, June 28, 1884
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When once the cables are in place the longitudinal opening isstopped up with cement mortar, and in this way a very tight conduit isobtained whose hardness increases with time. The value of the systemtherefore depends, as in all cement work, on the care with which themanufacturing is done.
Experiments have been made with the system at Toulouse, by theMinister of Post Offices and Telegraphs, and at Lyons, by the GeneralSociety of Telephones. Here, as with all similar questions, no opinioncan be p...ronounced until after a prolonged experience. But we cannothelp setting forth the advantages that the system offers. These are, in the first place, a saving of about 50 per cent. Over iron pipe, andin the second, a better insulation, and consequently a betterprotection of the currents against all kinds of disturbance, since anon-conducting mass of cement is here substituted for metal.
* * * * * ELECTRICITY APPLIED TO HORSE-SHOEING.
"There is nothing new but what has been forgotten, " said MarieAntoinette to her milliner, Mdlle.
What to read after Scientific American Supplement, No. 443, June 28, 1884?
You can find similar books in the "Read Also" column, or choose other free books by Various to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
When once the cables are in place the longitudinal opening isstopped up with cement mortar, and in this way a very tight conduit isobtained whose hardness increases with time. The value of the systemtherefore depends, as in all cement work, on the care with which themanufacturing is done.
Experiments have been made with the system at Toulouse, by theMinister of Post Offices and Telegraphs, and at Lyons, by the GeneralSociety of Telephones. Here, as with all similar questions, no opinioncan be p...ronounced until after a prolonged experience. But we cannothelp setting forth the advantages that the system offers. These are, in the first place, a saving of about 50 per cent. Over iron pipe, andin the second, a better insulation, and consequently a betterprotection of the currents against all kinds of disturbance, since anon-conducting mass of cement is here substituted for metal.
* * * * * ELECTRICITY APPLIED TO HORSE-SHOEING.
"There is nothing new but what has been forgotten, " said MarieAntoinette to her milliner, Mdlle.
What to read after Scientific American Supplement, No. 443, June 28, 1884?
You can find similar books in the "Read Also" column, or choose other free books by Various to read onlineMoreLess
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