The Franklin Journal, and American Mechanics' Magazine, Vol. 4

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Excerpt from The Franklin Journal, and American Mechanics' Magazine, Vol. 4: Devoted to the Useful Arts, Internal Improvements, and General Science In order to estimate higher degrees of compression, Mr. Perkins constructed another piezometer eight inches long, ground internally perfectly cylindrical, and stopped at its upper extremity, with a ¿at disk of glass cemented into it. This tube be filled with water, and subjected it to a pressure of 2000 atmospheres. After repeating this experiment a great number of times, the average result was, that the column of water, eight inches long, was compressed two-thirds of an inch or one-twelfth of its length. If we reduce this result to the scale of the preceding table, we shall find it to be as there inserted. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.