The elements of natural philosophy : copiously illustrated by familiar experiments and containing descriptions of instruments, with directions for using : designed for the use of schools and academies (1856)
Sprague, A. W. (Alfred White), 1821-1891 · Boston : Phillips, Sampson & Company · leaf 304
at E, and centre of convergency at C. The rays proceedingfrom B will be reflected from the convex surface to the eye atE, as though proceeding from a point, 6, behind the mirror; inlike manner those from I will appear to proceed from i, and soof all the intermediate points between B and I, thus… … 278. When light passes ob-liquely from one medium intoanother of difierent density, itsuifers a deviation, or changeof direction, known as refrac-tion. Eor instance, let a rayof light, proceeding from ?-, Fig.238, fall upon the surface ofa body of water at S; insteadof continuing in a straight…
Physics
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
