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 347
Fig. 227. … Fig. 228. OPTICAL INSTRUMENTS. )i5 cone similar in shape to the first, and if this cone be intercepted bya screen perpendicular to the line joining the hole with the centre ofthe sun, the image formed will be a circle. If the rays are inter-cepted by an oblique plane, as in the figure, the image is…
Physics
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
