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Proceedings of the Annual Meeting of the Indiana Academy of Science Volume 19 (Paperback) Loot Price: R438 Discovery Miles 4 380
Proceedings of the Annual Meeting of the Indiana Academy of Science Volume 19 (Paperback): Indiana Academy of Science
Proceedings of the Annual Meeting of the Indiana Academy of Science Volume 19 (Paperback): Indiana Academy of Science

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Proceedings of the Annual Meeting of the Indiana Academy of Science Volume 19 (Paperback)

Indiana Academy of Science

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Loot Price R438 Discovery Miles 4 380

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1910 Excerpt: ... a condition of internal strain which acts to lower the breaking strength of the thread. Coarse threads would be subject to greater strains than fine threads, and therefore we should expect them to show a smaller tensile strength than the fine threads. This is in accord with the results of experiment as shown by the data of Table I. Inasmuch as the error in measuring the breaking strength of any particular thread was relatively small and all strains tended to decrease that strength as measured, I have included in Table I only maximum readings: that is. readings which gave the greatest values of the tensile strength for the several sizes of threads. Average readings gave results some twenty per cent lower. Curve A of Fig. 1 is a plot of some of the individual maximum readings of Table I. It will be observed that the measured tensile strength increases very rapidly as the threads are made thinner. A similar increase takes place in wires and glass threads, and is attributed to a "skin effect." This increase is shown in Curve B. Fig. 1. which represents the results obtained by drawing out glass threads and determining their tensile strength by the method already deserihed. That the increase in the case of glass threads was due in part only to the "skin effect" was indicated by the fact that the tensile strength m ea su r ements for threads of different sizes were made more nearly uniform by carefully annealing the threads. This was done by hanging the threads in a vertical iron tube with a small weight attached to the lower end of each thread to keep it straight. The entire tube was then brought to a temperature slightly below the melting point of glass and maintained at that temperature for one hour, after which it was allowed to cool slowl...

General

Imprint: Rarebooksclub.com
Country of origin: United States
Release date: May 2012
First published: May 2012
Authors: Indiana Academy of Science
Dimensions: 246 x 189 x 8mm (L x W x T)
Format: Paperback - Trade
Pages: 138
ISBN-13: 978-1-231-05229-7
Barcode: 9781231052297
Categories: Books
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LSN: 1-231-05229-5

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