Hugh Longbourne Callendar, English physicist, c 1900.
4 0 c m
 
31cm
actual image size: 23cm x 32cm

Hugh Longbourne Callendar, English physicist, c 1900.

© Science Museum / Science & Society Picture Library

Description

Callendar (1863-1930) was profesor of physics at McGill University, Montreal; at University College London; and at the Imperial College of Science. Callendar invented an air thermometer with constant presure which could measure up to 450 degrees Celsius. He also made a platinum resistance thermometer which was extremely accurate.
 

Image Ref.

10300853
 

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