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Transactions of the Royal I rish A cademy, Vol. XVII. IT is well known that when a ray of light is incident upon certain crystals, such as Iceland spar and quartz, it is in general divided into two pencils, of which one is refracted according to the known law of the sines, while the direction of the other is determined by a new and extraordinary law, first assigned by Huygens. These laws were long supposed to apply to all doubly-refracting substances; and it was not until the subject was examined by the ablest advocate of the undulatory theory, that the problem of double refraction was solved in all its generality. Setting out from the hypothesis, that the elasticity of the vibrating medium within the crystal is unequal in three rectangular directions, Fresnel has shown that the surface of the wave is not, in general, either a sphere or spheroid, as in the Huygenian law, but a surface of the fourth order, consisting of two sheets; and that the directions of the two refracted rays are determined by tangent planes drawn to these surfaces under known conditions. Such crystals have, in general, two optic axes, and are thence denominated bia.
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Miscellaneous Papers Connected With Physical Science is an unchanged, high-quality reprint of the original edition of 1877. Hansebooks is editor of the literature on different topic areas such as research and science, travel and expeditions, cooking and nutrition, medicine, and other genres. As a publisher we focus on the preservation of historical literature. Many works of historical writers and scientists are available today as antiques only. Hansebooks newly publishes these books and contributes to the preservation of literature which has become rare and historical knowledge for the future.
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Paperback. Etat : New. Print on Demand. This book explores the nature of light and its physical properties, with a specific focus on the wave theory of light. It discusses the various phenomena associated with light, including propagation, refraction, diffraction, and the colors of thin and thick plates. The author presents both the strengths and weaknesses of the wave theory, contrasting it with the theory of emission. The book explores the implications of the wave theory for our understanding of light and its behavior, providing a comprehensive overview of this important physical theory. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. N° de réf. du vendeur 9781330463895_0
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Miscellaneous Papers Connected With Physical Science (Classic Reprint)
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