U.S. Army testing of weapons during World War 1. An American soldier fires a Browning M1917A1 .30-caliber Water-Cooled Machine Gun while sitting in a hard wooden chair on a porch. Two soldiers test firing a French M1914 Hotchkiss machine gun. Another soldier test fires a Vickers Mark I water-cooled machine gun.
A man cuts the grain with a scythe and another man picks up stalks. A man with a scythe in his hand talks to another man in a field. Manual harvesting takes place. A different farmer uses a horse driven mechanical reaper to harvest crops in the farm field.
Interior of a U.S. aircraft manufacturing plant in World War I. Men are assembling wooden frameworks of flying boats. Fuselage of one in foreground is Covered in sheets of wood. Men work on the fuselage of a flying boat that has low wing attachment sections in place. The hull of a seaplane being moved across the factory by an overhead crane. A Liberty engine being moved to a cradle on a stand, where a worker guides it into place. (World War I; World War 1; WWI; WW1)
Two lumberjack men cut a large tree in a forest using a two-man pit saw (or whipsaw). The large tree crashes to the ground. Cut timber and logs of wood being dragged and pulled with ropes along forest floor and through water filled ditches for transportation toward lumber mill area.
Highlights the importance and role of science in business. Application of science in usage of metals to make them more useful for mankind. Metal being melted in a foundry, metal being molded under high pressure. Machining of tungsten to be used in electrical industry. Aircrafts made of Beryllium, a metal lighter than aluminum, take off and in flight. Ship made of steel gets underway in sea.
Highlights the importance and role of science in business. Application of science in Chemistry to produce new chemicals and substances. Various new forms of plastic being manufactured in factories. Plastic telephone receivers being manufactured in a production plant. Articles made of new plastics. A new lucite plastic capable of transmitting light. A man holds lucite test tube, pipe and other articles made of plastic. He hits the lucite tube against a counter to show that it does not break. He demonstrates that curved lucite can "pipe" light through curves akin to electricity or water. Men take out synthetic rubber from a machine. Synthetic rubber made of coal,air and water being processed in a factory.
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