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Excerpt from The Effect of Sudden Chilling on the Heat Conduction of an Iron Bar According to present theory, heat is a form of energy and the result of heating any portion of matter is the addition of energy. This energy is absorbed in the form of an increase in the kinetic energy of the molecules, which are assumed to be in constant vibration, the velocity with which they vibrate Varying with their temperature. If one portion of the body is at a higher temperature than the rest the molecules then will be vibrating faster than the others. In this movement, however, they are constantly striking against othar molecules and with their greater velocity they naturally give the others an added impetus and so the energy, which is really heat, is diffused or conducted throughout the various parts of the body. According to this, therefore, it will at once be seen that there should be no heating of the other end of the iron bar or other material. For, if the heated end is suddenly cooled, that will result in a marked decrease in the velocity with which the molecules aie moving, in that portion, and the other parts cannot therefore receive any added energy but in reality must give up some of their own and so there will be a cooling of the other parts instead of a heating. 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.

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