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 328
nd portable, and of being well illuminated. The Galilean telescope is not adapted to astronomical observation,because the image formed is virtual; nevertheless it was with suchan instrument that Galileo discovered the satellites of Jupiter. The Astronomical Telescope. 319. The Astronomical… … Fig. 213. Fig. 213 represents the course of the rays in this instru-ment. A pencil of rays coming from A, is converged by o,to a focus a, whilst a pencil from B, is brought to the focusb. In this manner the lens o, forms an image, «&, of anobject, AS, which image is real and inverted. The…
Physics
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
