The Boston school compendium of natural and experimental philosophy .. (1837)
Parker, Richard Green, 1798-1869 · Boston : Marsh, Capen & Lyon · leaf 136
Pig. 96. Illustration. Fig. 96 represents the rays from an object a c entering an aperture.The ray from a passes down through theaperture to d, and the ray from c passes up tob, and thus these rays, crossing at the aper-ture, form an inverted image on the wall.The room in which this experiment is…
Physics
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