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c. hegeler , ed. paul carus , vol. , p. . as translated from professor jodl's ms. by w. h. carruth, of the university of kansas. h[ edit ] there can be no doubt that light consists of the motion of a certain substance. for if we examine its production, we find that here on earth it is principally fire
which engender it, both of which contain beyond doubt bodies which are in rapid movement, since they dissolve and destroy many other bodies more solid than they: while if we regard its effects, we see that when light is accumulated, say by concave mirrors, it has the property of combustion just as fire...
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