Test of Higgins Boats in Louisiana, United States. A 45 foot Higgins steel engine powered tank lighter boat in Lake Pontchartrain. People and tank on the boat. The panel of the boat opens and works as a landing ramp for the tank. The tank runs over the ramp and enters the water. The panel closes again.
Test of Higgins Boat in Louisiana, United States. A 45 foot Higgins steel engine powered tank lighter boat in Lake Pontchartrain. The boat hits the shore, lowers its bow ramp and a tractor drives off the boat on to the shore. The tractor drives away from the shore, and the boat moves away into the water. In different sequence, the empty boat comes to the shore and lowers its bow door ramp. The tractor arrives and backs onto the boat. A photographer takes closeup pictures during this process, With the tractor on board, the boat raises and closes its bow ramp door, and proceeds away carrying the tractor. The process is repeated. (Note:This film is silent. But "motorboating" sound was inadvertently generated when its perforations were scanned. This background sound is heard continuously although the film is "silent.")
The first atomic bomb is detonated during Manhattan Project testing at Alamogordo, near Los Alamos, New Mexico. Atomic bomb explodes. Fire and a smoke cloud rises. (World War II period).
The K-25 Plant (Carbide and Carbon Chemical Corporation) area in Oak Ridge, Tennessee, part of atomic bomb creation facilities of the Manhattan Project. Buildings at the plant. Smoke rises from a train which passes through the area. The Power House (K-25). A police car drives past in the foreground. A board reads 'safety first always and more power to you'. A restricted area and other information written on a sign board.
The Y-12 Electro Magnetic Plant in Oak Ridge, Tennessee, established during Manhattan Project effort to build the atomic bomb. A board reads 'Tennessee Eastman Corporation', ' Employment Office' and other information. Vehicles drive past on a road. Workers leave the plant after the day's work. People walk and are searched by a guard. The workers sit in a bus. Buses leave a parking area.
The X-10 Plant of Monsanto Chemical Company in Oak Ridge, Tennessee, established during Manhattan Project effort to build the atomic bomb. Vehicles drive towards the plant. A parking area of the plant. A car comes at the entrance gate of the plant. A guard at the gate. People leave from the exit gate of the plant. A sign of Monsanto Chemical Company. A guard enters. Clinton Laboratories of the plant. A sign reads 'Prohibited Area'. Smoke stacks in the background. Important information on a board.
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