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Title: Radiometer on stand; scratched on mica "No 1823 Oct [Go to resource]
Description: Radiometer on stand; scratched on mica "No 1823 Oct. 16th 1877. Selenium sulphate barium" License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Temporal: 1800-1899 Source: Science Museum Identifier: 1919-380 Go to resource More Like this...
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