A micro flash camera being used to take a picture of a projectile being fired at U.S. Naval proving grounds in Dahlgren.
Dahlgren Virginia USA Date:1951 Duration:41 sec Sound:Yes
United States naval proving grounds in Dahlgren, Virginia. Photography being used to determine the rate of spin of a projectile. A man works on a micro flash camera and light flashes. As the projectile is fired two flash lights being used to take a picture. A photograph of the projectile after firing. Difference in position of projectile from one photo to another helps to establish the rate of spin.
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