You beat me to it RIKA. It has been more than seventy years since Ed McGivern and Elmer keith were timed on CAMERA ...Raider said:Oh, they had timers back 70 years ago. The timers were quite accurate too. They also had photographic equipment that would picture a bullet in full flight. The problem was that the equipment was very heavy, bulky and expensive because they had no transistors or printed circuits. Your knowledge of the history of things is horrible.