Hand-books of Natural Philosophy and Astronomy: Optics

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C. Lockwood & Company, 1878
 

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Page 197 - When a ray of light passes from one medium to another, it is refracted so that the ratio of the sine of the angle of incidence to the sine of the angle of refraction is equal to the ratio of the velocities in the two media.
Page 433 - In ordering from this List it is recommended, as a means of facilitating business and obviating error, to quote the numbers affixed to the volumes, as well as the titles and prices. CIVIL ENGINEERING, SURVEYING, ETC. 31.• WELLS AND WELL-SINKING.
Page viii - The perspicuity of the original has been retained, and chapters which had become obsolete, have been replaced by others of more modern character. The explanations throughout are studiously popular, and care has been taken to show the application of the various branches of physics to the industrial arts, and to the practical business of life.

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