United States soldier blows bugle in front of barracks. U.S. Army Soldiers descend stairs and line up. Sergeant calls names of soldiers, from a list to determine their presence. Soldiers stand in line with rifles in hand
View of a busy traffic scene with automobiles and a passenger bus emitting air pollution in the United States. Highways filled with bumper to bumper traffic jam. Smog pollution over busy roadway. Automobile engineers and environmental protection Agency Researchers work to find pollution free power system. View of the test steam engine. Diagram depicts the functioning of gas turbine engines for vehicles. Truck with gas turbine engine dives on road. Gas turbine engine is used in boats and heavy machinery equipment. View of Continental Trailways passenger bus on road.
Birch Canoe builder with his wife paddles a self built canoe in North of United States. He soaks a large piece of cedar for the frame. The Canoe builder cuts the cedar log into long strips. He lights a burner and places wooden strips into it. The heated strips are then bent over the lower side of a canoe form. Man removes bark from Birch tree and joins them. Wooden form is placed in the center of birch bark sheets. They bind the Canoe with root strips, sewing them on. They affix gunwales and clamp the pieces in place. They paint pitch containing charcoal onto the seams. View of the man canoeing in his hand-built canoe.
Woman seated at desk writes a letter to her husband in the army. Animated map shows the distances of troops in different places of the world. Army truck unloads sacks of letters from Unites States Aircraft. Board of 'Photo Mail' and 'V Mail' (Victory Mail). Machine prints these letters and men arrange the letters. Soldier distributes letters to troops. Soldiers aboard tank, beside artillery, digging in trenches, and other soldiers read letters. (World War II period).
New Gun carrier meets army test. Gun carrier tanks on field test fire in United States. Tank descends from hillside. (World War II period).
Human astronaut test subject undergoes Mercury suit evaluations in United States. Human subject wears a Clark suit seated inside an altitude chamber to test the visibility and acoustical effects of the suit for NASA Project Mercury.
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