A half-length seated portrait of James Watt (1736–1819), inventor and engineer.
From a Picture by Sir W. Beechey in the possession of J. Watt Esq. of Aston Hall
Listen to the latest episodes of CHF’s award-winning podcast.
Help us preserve and share the history of chemistry and related sciences. Make a tax-deductible donation online.
Nylon valve, 1940s–1950s
©2010 Chemical Heritage Foundation