Pencils of Rays
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“These pencils of rays not only flow from the points designated in the figure, but in the same manner from every other point on the surface of a visible object.” -Comstock 1850
Galleries
Miscellaneous OpticsSource
J. L. Comstock A System of Natural Philosophy: Principles of Mechanics (: Pratt, Woodford, and Company, 1850) 242
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