Civilian use of radar in the United States post World War 2. View of New York Municipal Airport, later La Guardia, control tower and terminal. A TWA Lockheed C-69 Constellation taxiing as another plane descends. Ships sailing in harbor. Speeding train pulled by Pennsylvania Railroad class GG1 electric locomotive. A circular crt display showing radar activity and approaching storm front. A hurricane in America. Scientists study radar in Evans Signal Laboratory, located in Camp Evans, New Jersey. Entrance of the Evans Signal Laboratory. A large radar antenna. Radar oscilloscope display shows signal received from the moon.
Front pages of various American newspapers such as the New York World Telegram and Journal American reporting World War 2 related news with headlines such as “INVASION FLEETS AT STATIONS”, “INVASION “IMMINENT”! FLEET SET FOR ACTION” “ROOSEVELT, CHURCHILL MAP INVASION STRATEGY”, and “INVASION THRUST AT EUROPE EXPECTED HOURLY IN LONDON”. United States and United Kingdom senior military officers gather for a meeting. Two officials read a report together.
Views of well maintained farmland throughout the United States. Narrator emphasizes the importance of "conservation farming" to protect land.
United States Army Air Corps Douglas XC-32 military transport plane in flight after take off from Langley Field before WWII. Major General Frank Andrews and staff including Major George C. Kenny, inspecting a map onboard the XC-32. A radio operator in the XC-32 sends a message via morse code and voice. Ground radio operators in Concord, New Hampshire as command is heard on loudspeaker telling pilots to "simulate an air attack on the New York metropolitan area." View of a loudspeaker. Ground crewmen walking across snow-covered field in Concord New Hampshire with a Douglas YO-31A parked in background. Snow is falling on the airfield as crewmen uncover engine of a Martin B-10 bomber parked in a row with other bombers. A crewman in winter uniform carries a machine gun across snow-covered field toward a parked B-10. A gunner in a B-10 as nose turret turns. Crewmen looking in open bomb bay doors in the snow. Two crewmen turning propeller on a B-10 by hand while it is snowing. Two ground crewmen crank B-10 engine by hand to prime it in cold conditions. Engines on a B-10 are started. The snow is blown off wings of aircraft after the engine starts. Two ground crewmen pulling canvas covering off the wing of a B-10 in heavy snow. A Martin B-10 taxiing on snow-covered field. The B-10 taking off from snow-covered field. A Martin B-10 in flight.
Slate reads “He who leaves the beaten track in search of knowledge oft comes unexpected to his goal.”. A photo of a sunrise with word “Light”. Diagram enumerates the types of light- torch, candle, kerosene, gas and electric- and their level of relative efficiency. A drawing featuring different types of lights. Animation depicts a man hand pedaling to pull a block and tackle. Animations show a moving horse and engines that operate on steam, gasoline, and electricity, operate similar machines, pulling block and tackle faster than man. Lights illuminate Times Square in New York City at night. Giant turbines operate at a power plant in the United States.
Railway car with lighting powered by Edison batteries (also known as nickel-iron battery or NiFe battery) in the United States. A man opens the compartment under a train that contains Edison batteries, also known as storage batteries. He pulls out one of the storage batteries inside the compartment. Lights inside the train car. Train signal moving. A switch tower in a train junction. Engineers operate control in tower to change switch direction. Railroad switch moving. Locomotive and train moving down track.
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