Thomas Cooke & Sons siderostat, 1876.

 
Thomas Cooke & Sons siderostat, 1876.
4 0 c m
 
38cm
actual image size: 30cm x 32cm

Description

Photograph of a siderostat made by the English instrument makers, Thomas Cooke & Sons in York. The instrument was made to a design pioneered by the French physicist Jean Bernard Leon Foucault (1819-1868). It was used to direct starlight into an ancillary instrument, such as a spectroscope, for analysis. It uses a flat mirror, driven by a clockwork mechanism, to follow the stars as they move acros the sky. This siderostat was displayed at the 1876 Loan exhibition that was held on the site of today's Science Museum at South Kensington, London.

© Science Museum / Science & Society Picture Library

buy a print

Select size
 
Select finish
 
How many prints?
 
£20.00
 

buy a framed print

buy a canvas

buy a framed canvas

image details