Transmission of disease through some careless habits of the disease carrier is illustrated. Disease causing bacteria can be seen spreading through water glass and greeting each other. 1922.
It exemplifies the spread of disease from New-York to California with the help of an animated map of U.S. 1922.
Slate refers to Leinweber brothers helicopter in Chicago. View of their helicopter being moved out of a hangar in 1922. Closeup of helicopter controls being demonstrated. Next, a helicopter of M. Douheret, of France, is shown in 1919. Men stand nearby and watch its rotors turn in the breeze. Engine cylinders are clearly visible. Pilot sits in the machine and adjusts controls. Next he stands and starts engine. Suddenly, the running helicopter tips over and he runs for safety but returns to shut the engine down. In a second attempt, the pilot is again seen standing next to the machine, with its engine running. And, again, he must run to safety, as it tips over. This time it stops running by itself, and other men help him tip it back upright.
Slate reads: "How the Wrights learned to fly -- the motorless, man-carrying glider."A primary glider is seen, circa 1922. A group of people, at the top of a high hill, overlooking a valley, watch as the glider with skeleton frame,single high wing, and wheels, launches from the hilltop. It is operated by a single pilot who maneuvers it on a long flight toward the valley below.
United States ship Langley underway in the Pacific Ocean. U.S. Vought VE-7 aircraft piloted by Lieutenant Commander V.C. Griffin comes in for landing aboard the Langley on January 29th, 1922. Aircraft lands and taxis along the flight deck.
United States Navy pilot attempts landing on the aircraft carrier Langley (CV-1) off the coast of California, United States. An Aeromarine 39B, piloted by Lieutenant Commander G.C. Chevalier comes in for landing aboard the United States aircraft carrier Langley in October, 1922. He makes a go-around on the first pass. On the second approach, he lands but the arresting gear slowly retracts, pulling his airplane backwards, and causing it to nose over. Sailors rush towards the aircraft. Another view of the same incident from a camera on the opposite side of the flight deck.
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