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Campbell-Stokes sunshine recorder, 1899.

John Francis Campbell (1822-1885), born on the Hebridean island of Islay, first devised a sunshine recorder using a glass 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 No. 10313155 | This is a Rights Managed image.

Inventory No.: 1909-0132
Source No.: 1909-0132

Credit © Science Museum / Science & Society Picture Library -- All rights reserved.
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