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Title: Circular diffraction grating ruled on glass [Go to resource]
Description: Circular diffraction grating, 2-inch diameter ruled on glass, 165 lines per mm (4,200 per inch), unsilvered in passe-partout mount, made by W. R. Clark, London, England, 1910 -1915 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: diffraction grating - reflection Temporal: 1910-1920 Source: Science Museum Creator: Clark, W. R. Identifier: http://collectionsonline.nmsi.ac.uk/grab... Go to resource More Like this...
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