Introductory course of natural philosophy for the use of schools and academies. Ed. from Ganot's popular physics. By William G. Peck (1869)
Ganot, Adolphe, 1804-1887, Peck, William Guy, 1820-1892 · New York A.S. Barnes · leaf 202
LECTION OF HEAT. 199 Laws which govern the Reflection of Heat. 197. The following laws, indicated by theory, have beenconfirmed by experiment: \ 1. The 2^lanes of incidence and reflection coincide. 2. The angles of incidence and reflection are equal. The apparatus, employed in establishing these… … Fig. 137. The surface. A, radiates heat in all directions, but only a singleray is permitted to fall upon the reflector, B. the remainder beingintercepted by a screen, having a small hole in it. By suitably ar-ranging the thermometer, and other parts of the apparatus, it is shewn,whatever maybe the…
Physics
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
