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Title: Original mirror for William Herschel's forty-foot telescope, 1785. [Go to resource]
Description: The first 48-inch speculum mirror cast with metal cover by Sir William Herschel in 1785 for his 'Forty Foot' telescope at Slough, England. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: metal mirrors
concave mirrors
components
astronomical instrumentsTemporal: 1785 Source: Science Museum Creator: Herschel, William Identifier: http://collectionsonline.nmsi.ac.uk/grab... Go to resource More Like this...
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