A speedboat sails through a wall in Chicago, Illinois. The speed boat driver dons his gear. The speedboat underway in Burnham Park lake with a speed of 50 miles per hour. The boat sails through a wooden wall built over the lake.
A cotton boll picking machine in Stoneville, Mississippi. Men pick cotton bolls with hand in a field. The Rust Brothers demonstrate a cotton picking machine invented by them. A sign on the machine reads 'Rust cotton picker'. The machine picks cotton bolls. People look on at the machine in operation. The bolls are loaded in a bag attached to the machine.
A two headed calf in Sacramento, California. The two headed calf eats from a tray. The second head grows out of the side of the natural cranium. A man points at the three horns of the calf.
Leven Lake in Cisco, California. A man fixes a dynamite pack. Explosions occur in the middle of Loch Leven Lake to kill fish. Water splashes due to the explosion. State fisheries officials then release young trout into the lake.
A film titled 'High Altitude dive and glide bombing' about means of attaining accuracy and pilot safety by carrier-based light aircraft dive bombers dropping special devices. A U.S. Navy dive bomber in flight in the United States. The aircraft rolls and dives down. A bomb impacts after being released. A massive explosion occurs (small atomic / nuclear). A mushroom cloud of smoke and dust rises up. A dive bomber in flight. The aircraft dives down and drops a bomb. An explosion occurs and billows of smoke rise up.
A film about means of attaining accuracy by dive bombers in the United States. Animation shows the trajectory path of a bomb after being released in mid air. The distance that a bomb would fall short of the target, if not compensated for, is called the "trail." A graph depicts the altitude of release of the bomb and the sight angle. Animation explains the concepts. A pilot sets a lead at a target. Animation depicts the importance of the lead at release altitude. Results are illustrated in animation. Consequences of taking a wrong flight path are explained. A graph depicts the means of computing the release altitude and the sight angle. The effect of wind on a diving aircraft as it affects the flight path.
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