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 307
Fig. 197. LENSES. 305 on removing the lens, they disappear at the principal focal distance,and finally reappear inverted and diminished in size. Formation of Images by Concave Lenses. 302. Concave lenses being thinner in the middle thanat the edges, have the effect to diverge parallel rays. If…
Physics
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
