The first successful helicopter was the Focke-Wulf Fw 61, whose first flight was June of 1936 in Germany. The man often credited with being the inventor of the helicopter is Igor Sikorsky, whose version first flew on September 14, 1939.Know More
Igor Sikorsky's VS-300 was built by the Vought-Sikorsky Aircraft Division of the United Aircraft Corporation in Connecticut. Its first flight was tethered. The first free flight took place May 13, 1940.
Before the helicopter as it is known today, a more primitive rotorcraft called a giroplane was successfully flown on January 17, 1923. Designed by Juan de La Cierva of Spain, it used a single main rotor and rotor tail and was used during the 1930s by the Spanish military.Learn more about Inventions
The original helicopter from the TV series "Airwolf" was destroyed in a crash in Germany in 1992. The helicopter was being used for medical ambulance purposes at the time.Full Answer >
Some accounts point to Charles Fredrick Wiesenthal of Germany, who received a patent in 1755 in England for a double-pointed mechanical needle device, as being the first to pioneer technology that would lead to the invention of the sewing machine. While not quite a machine, this was the first successful attempt at sewing performed by a mechanical device. The credit for an actual sewing machine is given to Thomas Saint, in the year 1790 in England.Full Answer >
Otis Boykin invented the resistor, and he received a patent for it on June 16, 1959. Boykin was an electronic scientist and inventor who lived from 1920 to 1982. He held a total of 26 patents when he died, having invented other significant devices, such as a control unit for pacemaker machines.Full Answer >
George T. Sampson invented the American clothes dryer, for which he received a patent on June 7, 1892. Sampson also received a patent for a sled propeller on Feb. 17, 1885.Full Answer >