Excerpt from The Quarterly Journal of Science, 1870, Vol. 7 Now when heat spreads by the ether in this way, we denominate it radiant heat; and, as we might expect, all the laws common to light are also common to radiant heat, for both are undulatory motions of the selfsame ether.' But whilst the propagation of li ht only takes place (so far as we yet know) by means of this et er, heat, on the contrary, spreads itself in two ways. It may be pmpagated from particle to particle by tangible matter, and the phenomenon is then ...
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Excerpt from The Quarterly Journal of Science, 1870, Vol. 7 Now when heat spreads by the ether in this way, we denominate it radiant heat; and, as we might expect, all the laws common to light are also common to radiant heat, for both are undulatory motions of the selfsame ether.' But whilst the propagation of li ht only takes place (so far as we yet know) by means of this et er, heat, on the contrary, spreads itself in two ways. It may be pmpagated from particle to particle by tangible matter, and the phenomenon is then termed conduction or in waves by the ether, and the phenomenon is then, as we have seen, termed radiant heat. Now sound, like heat, may also be propagated by grow matter, and this likewise is called conduction; it may further, as already men tioned, spread itself in waves by the air, and in this form we may conveniently call it radiant sound. Light being only known in the radiant form, obviously it will only be in the phenomena of radiant sound that we shall be justified in further seeking the analogy to light. This we shall do in a succeeding section. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at ... 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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