Campbell-Stokes sunshine recorder, 1899.
 
 
 

Campbell-Stokes sunshine recorder, 1899.

© Science Museum / Science & Society Picture Library

image details

Description
John Francis Campbell (1822-1885), born on the Hebridean island of Islay, first devised a sunshine recorder using a glas sphere set in a wooden bowl. Hours of sunshine were indicated by a scorch mark on the bowl. Stokes modified the stand, making it of metal and holding a card for the day at the back of the globe. This is a side view of an example by Short and Mason of London.
 
Image Ref.
10313155
 
 

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