Joule's apparatus for determining the mechanical equivalent of heat, c 1845.

Joule's apparatus for determining the mechanical equivalent of heat, c 1845.
2 3 c m
40cm
actual image size: 32cm x 15cm

Description

Joule's original apparatus for determining the mechanical equivalent of heat by the water friction method. The picture is a general arrangement drawing. James Prescott Joule (1818-1889) was the English scientist celebrated for the experimental establishment of the mechanical theory of heat.

Image Details

Image Ref.
 
10307490

© Science Museum / Science & Society Picture Library

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