Search results
Results From The WOW.Com Content Network
"Egg of Columbus" demonstration at the 1893 Columbian Exposition. Tesla's Egg of Columbus was a device exhibited in the Westinghouse Electric display at the 1893 Chicago World's Columbian Exposition to explain the rotating magnetic field that drove the new alternating current induction motors designed by inventor Nikola Tesla by using that magnetic field to spin a copper egg on end.
An induction motor or asynchronous motor is an AC ... the Royal Academy of Science of Turin published Ferraris's ... For example; a single-phase motor with 3 north ...
Fig. 2—Ferraris motor (larger version) In 1885, Professor Ferraris constructed the motor depicted in plan in Fig 1, which was not, however, publicly shown till 1888. It was exhibited in 1893 at the World's Fair at Chicago. It consisted of two pairs of electromagnets A A and B B', having a common yoke made by winding iron wire around the exterior.
Courtesy of Society for Science & the Public. This year's 30 Broadcom MASTERS finalists were announced on Oct. 6. Check out how these pre- and early teens wow-ed the judges with their creativity ...
A linear induction motor (LIM) is an alternating current (AC), asynchronous linear motor that works by the same general principles as other induction motors but is typically designed to directly produce motion in a straight line. Characteristically, linear induction motors have a finite primary or secondary length, which generates end-effects ...
An induction motor is an asynchronous AC motor where power is transferred to the rotor by electromagnetic induction, much like transformer action. An induction motor resembles a rotating transformer, because the stator (stationary part) is essentially the primary side of the transformer and the rotor (rotating part) is the secondary side.
1888 – An AC induction motor is featured in a paper published by Galileo Ferraris and is patented in the U.S. by Nikola Tesla. [11] 1892 – Rudolf Diesel patents the Diesel engine (U.S. patent 608,845). [12] 1899 – Ferdinand Porsche creates the Lohner–Porsche, the first hybrid vehicle.
The motor is positioned at the opposite end of the catch-car on the launch track. While the train inches forward into a ready position, the pusher mechanism moves back from the motor toward the train. Once the pusher connects, the anti-rollback braking system drops beneath the track, giving the train the green light to be launched.