Early developments in North American forest fire detection and communication Various methods of communication used to send information during a forest fire. Smoke rises from forest and a Ranger, carrying a spade, climbs a hill in the area. Circa 1920 picture of a man with a carrier pigeon used to send information in case of forest fire. Rangers with shovels working around smoking underbrush. Another man with a hand mirror for reflecting the suns rays and sending a signal to others. A man speaks over a telephone. Man in a room as he speaks over a wireless handset.
Man drives an offroad vehicle specially designed, with individually suspended wheels, to traverse difficult terrain during a forest fire. A Canadair CL-215 "Super Scooper" twin engine float plane filling its 1400 gallon water tanks as it skims over a lake and then discharging it in a demonstration, in Quebec, Canada. Solar energy powered weather instruments and a tower with view of its instruments and a solar panel with solar cells on it. A satellite in the space. Closeup aerial view of Cessna O-2 Skymaster surveillance aircraft in flight. Technician inside aircraft using infrared detectors to find forest fires. Image of the territory below on monitor screen aboard the airplane. "Smoke Jumpers" parachute from an aircraft. A helicopter hovers over trees in forest and lowers a rope that firefighter uses to rappel into the forest. Firefighters manually fighting a fire with hand tools at the fire's edge. They quickly leave the area, as a flareup occurs and then return to continue fighting the fire.
Exterior of an industrial plant shows a lake. Glimpse of skyscrapers. Women work at typewriters. in an office building. Aerial view of a Northeast University. The Low Library at Columbia University, New York City (designed by McKim,Mead & White). A modern building labeled "Research." Women at work in a publishing house, where machines print and assemble books. Rockefeller Center in New York City. Statue of Prometheus, reclining, is visible in sunken plaza. Camera pans up the RCA Building at 30 Rockefeller Plaza in background.
A training film outlining the capabilities of various types of ships and landing craft employed in transportation of U.S. troops. Troop Commander with officers discusses over charts the landing of troops. U.S. Amphibious Force Flagship or AGC (Amphibious Command Ship) equipped with special communication facilities, AGC underway at sea. APA (Attack Transport), AKA (Attack Cargo Ship), LSD (Dock Landing Ship), APD (High Speed Transport), LST (Tank Landing Ship), and LSM (Medium Landing Ship) underway at sea. Various types of Landing Craft for transporting troops and equipment includes LCU (Utility Landing Craft), LCM-6 (Landing Craft, Mechanized Mark-6). Troops aboard LCVP (Landing Craft, Vehicle, Personnel), LCPR (Landing Craft Personnel Ramp), and LCPL (Landing Craft Personnel Large).
Capabilities of U.S. LSD for transportation of troops and vehicles. LSD (Dock Landing Ship) underway at sea. It is primarily used for discharge of landing crafts. Troops aboard LSD. Two cranes on deck of ship. A helicopter lands on deck of the ship. Truck hoisted on deck of the ship.
Capabilities of U.S. APD for transportation of troops and vehicles. APD underway at sea. Equipment hoisted on deck of ship. Officer briefs troops aboard the ship. APD underway and shoreline in background.
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