History: September 13, 1950. Pendulum pounding into a plastic helmet worn for testing by Dr. Charles F. Lombard of the University of Southern California Department of Aviation Physiology. This was part of a program planned to improve equipment, especially headgear for football players. [1500x1523]

https://i.redd.it/iqj6h45aw5e51.jpg via /r/HistoryPorn https://www.reddit.com/r/HistoryPorn/comments/i14m3w/september_13_1950_pendulum_pounding_into_a/?utm_source=ifttt