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Description: | Replica concave diffraction grating, area 45 x 15 mm approx., made by sticking a metal foil replica grating on the back of a concave glass disc. Markings scratched on the protective black paint on the back of the disc read 'Thorp's replica of grating / about 15100 lines per / inch / T. T. / 14/11/13'. The disc clips into a square wooden block. | License: | http://creativecommons.org/licenses/by-nc-sa/2.5/ | Subjects: | diffraction grating - reflection | Temporal: | 1913, 14 November | Source: | Science Museum | Creator: | Thorp, Thomas | Identifier: | 2000-1464 | Go to resource |
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