Forest Products Laboratory, Madison, Wisconsin. Testing a block of wood to show the effect of compression parallel to the grain. As pressure is applied to the block, a lamb's roller extensometer is used to plot the effect on a graph
Summary
Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description
Tags
Date
01/01/1942
Contributors
Delano, Jack, photographer
Source
Library of Congress
Copyright info
No known restrictions. For information, see U.S. Farm Security Administration/Office of War Information Black & White Photographs http://www.loc.gov/rr/print/res/071_fsab.html