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U.S. testing liveliness of baseballs. Washington, D.C., Feb. 21. Exper...
Public domain photograph of people in office, interior, the 1910s-1920s America, free to use, no copyright restrictions image - Picryl description
![Bureau of Standards designs mechanical batter to determine liveliness of baseballs. Washington, D.C., Feb. 21. Using a newly designed apparatus, the U.S. Bureau of Standards today began experiments to determine the relative home-run qualities of American, National and International baseballs. In conducting the tests a scientist pulls the trigger of an air gun loaded with a wooden projectile representing the slugger's bat. The projectile strikes a baseball causing it to fly toward a ballistic pendulum. After each of such hits the scientist takes a reading on the pendulum. It tells him how hard the ball hit the pendulum, or whether it was a homerun, a double, [...]st a pop fly. Dr. H.L. Dryden, Chief [...]e Division of Mechanics and Sound, Designed the machine and is supervising the tests. He is [...] right while on the left is Edward B. Eynon, Secretary of the Washington Baseball Club, 2/21/38](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzIwMTUvMTEvMjUvYnVyZWF1LW9mLXN0YW5kYXJkcy1kZXNpZ25zLW1lY2hhbmljYWwtYmF0dGVyLXRvLWRldGVybWluZS1saXZlbGluZXNzLW9mLWJhc2ViYWxscy0xMDI0LmpwZw%3D%3D/40/32/webp "Bureau of Standards designs mechanical batter to determine liveliness of baseballs. Washington, D.C., Feb. 21. Using a newly designed apparatus, the U.S. Bureau of Standards today began experiments to determine the relative home-run qualities of American, National and International baseballs. In conducting the tests a scientist pulls the trigger of an air gun loaded with a wooden projectile representing the slugger's bat. The projectile strikes a baseball causing it to fly toward a ballistic pendulum. After each of such hits the scientist takes a reading on the pendulum. It tells him how hard the ball hit the pendulum, or whether it was a homerun, a double, [...]st a pop fly. Dr. H.L. Dryden, Chief [...]e Division of Mechanics and Sound, Designed the machine and is supervising the tests. He is [...] right while on the left is Edward B. Eynon, Secretary of the Washington Baseball Club, 2/21/38")
Bureau of Standards designs mechanical batter to determine liveliness ...
Two men working on a machine in a factory. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description
U.S. testing liveliness of baseballs. Washington, D.C., Feb. 21. Exper...
A black and white photo of two men in a lab, Library of Congress Harris and Ewing collection Title from unverified caption data received with the Harris & Ewing Collection. Gift; Harris & Ewing, Inc. 1955. Gen... More