Word: rotor
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Dates: during 1970-1979
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...point, an American helicopter bearing U.S. Ambassador Joseph S. Farland and 10-lb. sacks of rice, molasses and salt was nearly torn apart when it landed among starving Bengalis, who rushed the Ambassador and grabbed at the sacks. As the pilot swung into the air again, the tail rotor cut down three of the mob, seriously injuring them...
...induction motors. These are similar to conventional electric motors, but they have, in effect, been flattened out. Part of the undercarriage of the train acts as the motor's fixed coils, while a vertical guide rail in the center of the pathway takes the place of its spinning rotor. When enough electrical power is fed into the system, the train begins to move forward. Like an airplane, the train needs old-fashioned wheels for low-speed travel until it reaches "liftoff" at about 50 m.p.h...