Early means of communication used in case of a forest fire in United States.
United States USA Date:1920 Duration:1 min 33 sec Sound:Yes
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.
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