Animated film shows how sound waves are created by the human voice cause movement of air molecules and how this movement is transmitted through the flexible diaphragm of the telephone mouthpiece. The electrons passing through carbon granules in the mouthpiece are transformed into electric current and the magnet and flexible diaphragm in the telephone receiver transforms the current into sound waves. An old man and a kid talking into phone.
Crowds in New York City celebrate end of World War 1 near time of Armistice. View from above of crowds on 5th Avenue, in Manhattan, gathered at Madison Square, around the Altar of Liberty designed by architect Thomas Hastings, to honor homecoming American soldiers. Camera pans across celebrants waving hats, hands, and flags. Scene shifts to the financial district, and the George Washington Statue at Federal Hall, Wall Street, which has been draped with American flag and signs reading: "Liberty cannot die." A clergyman standing below the statue, paces back and forth. Closeup of a bearded Jewish man, wrapped in a Yiddish newspaper announcing the armistice. He is blowing a horn and has an American flag and a blue and white Jewish flag fastened at his back. Camera pans over young women dressed in costumes as: soldiers, nurses, drum majorettes, the statue of liberty, red cross workers, and Uncle Sam. View shifts to an effigy of the German Kaiser suspended high above the street, between two buildings. Men ride on the outside of a car. One "chokes" an small effigy of the Kaiser while another pummels it. Another crowd raises an effigy of the Kaiser aloft holding a white flag of surrender. A man wearing a grotesque mask of the Kaiser, with Kammerad written across the forehead. He holds an American flag. Vehicles, including a horse-drawn carriage, move along a street surrounded by vast crowds. Confetti flies through the air. Jubilant crowd wave newspapers with headline: Germany Surrenders. A double-decker bus seen in background. (World War I; World War 1; WWI; WW1)
View above Avrocar model. Model is placed on edge in wind tunnel during test with angle of attack being varied by rotation of the holding fixture, demonstrating the behavior of air currents flowing over the model in different positions.
View above Avrocar model in Toronto, Ontario. Demonstration of behavior of air currents flowing over the model in different positions. It is achieved by placing the model on edge in wind tunnel during test with angle of attack being varied by rotation of the holding fixture.
British colors of Merchant Marine fly from ship. British troops aboard the ship. Personnel aboard ship get fresh air and stacks in the background. Troops on weather deck, underneath life boats. Two crewmen stand by a 50 cal. Machine gun, mounted at deck's edge. Gun crew stands by 4''gun. Ship's gun crew, stand by a 4'' gun, mounted on ship. Crew stands by 50 cal. Machine gun. Water-cooled, 50 cal Machine gun. Stack in the background. (World War II period)
Diver's air tanks on dock. Deck of capsized ship SS Normandie. Letters on port bow 'NORMANDIE'. SS Normandie ocean liner lays on her side following fire and capsizing at New York City harbor dock.
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