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Description: | One of a pair of large swivelling mirrors mounted on a short tripod base in a cast yolk. Blue-grey painted, chrome adjusting and tightening screws; 360 degree rotation about horizontal and vertical axes with fine micrometer screw adjustment for precision setting. Mirrors have black plastic protect covers. Plate on yolk reads "T606 Mirror No. 5084/ Diameter 12" Focal length 8' ". I.e. diameter 305 mm and focal length 2.44 m. Particularly for the transmission and reception of light or heat over long distances. | License: | http://www.abdn.ac.uk/historic/Copyright_terms_conditions.shtml | Publisher: | ABDNP University of Aberdeen, Natural Philosophy Collection of Historical Scientific Instruments | Rights holder: | 47718 | Temporal: | 1940-1955 | Source: | University of Aberdeen | Identifier: | http://calms.abdn.ac.uk/Geology/dserve.e... | Go to resource |
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