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Calendar of Discovery and Invention

Naturevolume 120page65 (1927) | Download Citation



July 10, 1817.—For his important discoveries on the polarisation of light, Brewster in 1815 received the Copley Medal, In its investigations he was led to the invention of the simple scientific apparatus, the kaleidoscope quickly gained immense popularity in England and America. Writing from London in May 1818, Brewster said, “You can form no conception of the effect which the instrument excited in London. . . . Infants are seen carrying them in their bread by making and selling them.”


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