The Boston school compendium of natural and experimental philosophy .. (1837)
Parker, Richard Green, 1798-1869 · Boston : Marsh, Capen & Lyon · leaf 138
w statedabove, and a clear idea of these angles is necessary, in order to understand thelaw, it is deemed expedient to repeat in this connexion the explanation alreadygiven. 344. What is catoptrics? 345. By what laws are rays of light reflected I Whatis the fundamental law of catoptrics >. 346.… … 128 NATURAL PHILOSOPHY. we are standing on one side of a mirror, we can see the reflectionof objects on the opposite side of the room, but not those on thesame side on which we are standing. It explains, also, all the appa-rent peculiarities of the reflection of the different kinds of mirrors. 347.…
Physics
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