Well's natural philosophy : for the use of schools, academies and privte students, introducing the latest results of scientific discovery and research ; arranged with special reference to the practical application of physical science to the arts and the experiences of everyday life ; with three hundred and seventy-five engravings (1873)
Wells, David A · New York : Ivison, Blakeman, Taylor and Co. · leaf 323
oflight coming in contact with them. That department of the science of opticswhich treats of the refraction of li^ht is termed What is Diop-trics? Dioptrics. 676. When a ray of light passes through atransparent medium whose sides where thoray enters and emerges are parallel, it willsuffer no… … Thus let A A, Fig. 256, be a plate ofglass, -n-hose sides are parallel, and B C aray of light incident upon it; it will be re-fracted in the direction C D, and on leavingthe glass will be refracted again, emergingin the line D E, parallel to the course it•would have pursued if it had not been…
Physics · Science · Technology
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