= Percy Williams Bridgman
{c}
{tag=Physicist}
{title2=1882–1961}
= Percy W. Bridgman
{c}
{synonym}
= P. W. Bridgman
{c}
{synonym}
<Percy Williams Bridgman> developed apparatus that made very high pressures useful as a controlled experimental variable. A pressure-assisted seal tightens as the load increases, helping contain conditions that would defeat a simple fixed gasket. Measuring changes of volume, phases and other properties under <pressure> reveals how strongly compressed matter differs from its ordinary state. His account connects the mechanical design of the <pressure> vessel with the reliability and range of the resulting physical measurements.<General Survey of Certain Results in the Field of High-Pressure Physics by Percy Williams Bridgman>[Nobel lecture, high-pressure apparatus and measured material properties]{ref}
A <physicist>.https://www.rheology.org/SoR/Awards/Bingham/BridgmanP.aspx[Independent professional profile]{ref}
\Image[https://upload.wikimedia.org/wikipedia/commons/9/9a/Bridgman.jpg]
{title=Portrait of <Percy Williams Bridgman>}
{width=240}
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