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Electrical Engineer Volume 25 ebook

Electrical Engineer Volume 25 ebook

Electrical Engineer Volume 25.cBooks Group
Electrical Engineer Volume 25
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Author: Books Group
Number of Pages: 1062 pages
Published Date: 13 May 2014
Publisher: Rarebooksclub.com
Publication Country: Miami Fl, United States
Language: English
ISBN: 9781236188564
Download Link: Electrical Engineer Volume 25
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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1898 edition. Excerpt: ...together so as to form a cable with a hollow core. In order to correct any effect due to the induction of one arm of the coil upon the other the twisting is done in a very careful manner, so that the strands of the cable which are inside on passing the left-hand movable coil on one side are outside on passing the right-hand movable coil on the same side, and are in the reverse direction on the other arm of the U. The core of the cable is, as mentioned above, hollow, and brass tubes are passed up each arm of the U as far as the bend. The main object of these tubes is to prevent any deformation in the cable, but they also serve as a means of blowing air through to keep the conductor cool, if it should ever be necessary to use it for much heavier currents than those for which the instrument is primarily intended. (To be continued.) Here we see that three atoms of H in cellulin have been replaced by three atoms of peroxide of nitrogen or nitryl. Tri-nitro cellulin, as usually produced, is soluble in ethyl acetate (C2rI6, C, rL02), but quite insoluble in any mixture of alcohol (C2H60) with ordinary vinic or "sulphuric" ether (C2H.)20. But if it be prepared with the sesquihydrated acid mixture given above, at a temperature of 122deg. or 130deg. F., it is found to be quite soluble in a mixture of 1 of alcohol and 8 of ordinary ether. The effect of similarly raising the temperature of more hydrated acid mixtures will be referred to below. Tri-nitro cellulin in a pure state is somewhat difficult to produce--slight differences in the strength of the acids producing a great difference in the result. Although a stable compound (when pure) it is dangerous from its violent explosive properties; and being, so far as I know, useless for purposes...

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