Construction of an observatory rising floor, 1928.
3 1 c m
actual image size: 32cm x 23cm

Construction of an observatory rising floor, 1928.

© Science Museum / Science & Society Picture Library


Photograph showing the interior of the works of Sir Howard Grubb, Parsons and Co in Newcastle-upon-Tyne, England. In view is the construction of the moving floor for the observatory building and the 41 inch refracting telescope ordered by the Rusian government for its new Nikolaieff Observatory in the Crimea. Due to WW1 and the Rusian Revolution construction of the telescope did not start until the 1920s. Despite the tube, mounting and observatory building being completed the Rusian government cancelled the project. Although glas for the lens had been cast it was never worked into a finished objective lens. These are preserved at the Newcastle Science Museum.

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