United States naval proving grounds in Dahlgren, Virginia. Flak burst as anti aircraft guns are fired. Explosions occur in water. A building at the proving grounds in Dahlgren, Virginia. Men inside the building make preparations to fire a 5 inch projectile in a pit having a diameter of 25 feet. A man places a projectile in a box and after the detonation wires are checked the pit is filled with sawdust. Sawdust is dampened with water. Saw dust being detonated. Saw dust pass through various machines as fragments are recovered. A magnetic roller being used to recover fragments. Fragments being weighed and sorted. Men work on machines as they sort out fragments. Fragments being arranged and photographs taken to keep a record.
United States naval proving grounds in Dahlgren, Virginia. A ship with snow on its deck underway at sea. A man works on controls at the naval proving grounds in Dahlgren, Virginia as he tries to maintain temperature and altitude. Men in the cool chamber as they work on a machine gun.
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.
The British forces in India as they plan for their operations in Burma during World War II. Crew seated on the airfield. Plane parked in the background. They sit near the plane and pose. They erect tents on a field. A truck passes on the field. A man examines the teeth of a pilot. Women of the Red Cross serves meals to them.
Artillery fire at Myitkyina airstrip in Burma during World War II. U.S. and Chinese soldiers on the battlefield. U.S. and Chinese soldiers confer looking at a map. Chinese soldiers with a telephone. A Chinese enlisted man gives orders to fire. A battery of howitzer fires.
Atomic weapons development in the United States Army. Exterior of a building. An officer briefs men about the new technology. Men work behind computers. A technician fixes a machine. Trainees watch an atom through a microscope and work on it. Soldiers train to become atomic technicians in the military. Soldier trainees attend a lecture. The professor discusses the atom structure and the mechanics of the atom. A man inspects a rocking rocket.
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