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 348
circle. If the rays are inter-cepted by an oblique plane, as in the figure, the image is elliptical,but it never takes the form of the hole when that is small. In accordance with this principle, we find the illuminated patchesof earth formed by light passing between the leaves in a forest of… … Fig. 229. Explain, the peculiar rounded form of patches of light in the shadow of a forestWhat form do they take in an eclipse of the sun! TOPULAii PHYSICS, they are images of the visible part of the sun. The reason of tfescurious phenomenon is evident. Manner of rendering the Image erect. 384. The…
Physics
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