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Title: Spectroscope from Norman Lockyer Observatory for solar work [Go to resource]
Description: Spectroscope from Norman Lockyer Observatory for solar work by John Browning with diffraction reflection grating ruled on speculum metal by D.C. Chapman with engine of L.M. Rutherfurd, 24 April 1878, 17296 lines per inch License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: diffraction grating - reflection
spectroscope - solarTemporal: 1878 Source: Science Museum Creator: Chapman, D.C. Identifier: 1987-1163 Go to resource More Like this...
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