Emilio Segrè Visual Archives

More than 30,000 photos of scientists and their work

Bridgman Percy F1

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Bridgman Percy F1

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Image title: 
Shearing apparatus
Credit line: 
Paul H. Donaldson, Cruft Laboratory, Harvard University, courtesy AIP Emilio Segrè Visual Archives

Lyman Laboratory at Harvard University. This is a shearing apparatus used for exploratory measurements at very high pressures, and is one of the many types of high-pressure equipment devised by Professor Percy Bridgman. Work with this press led to the attainment of a new world-record experimental pressure: 425,000 atmospheres, or 6,250,000 pounds per square inch.

Photo date: 
Original format: 
1 photographic print (black and white; 9.5 x 7.5 inches)
Bridgman, P. W. (Percy Williams), 1882-1961