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A ram air turbine (RAT) is a small wind turbine that is connected to a hydraulic pump, or electrical generator, installed in an aircraft and used as a power source. The RAT generates power from the airstream by ram pressure due to the speed of the aircraft. It may be called an air driven generator (ADG) on some aircraft. [1]
The word "turbofan" is a combination of references to the preceding generation engine technology of the turbojet and the additional fan stage. It consists of a gas turbine engine which achieves mechanical energy from combustion, [ 1 ] and a ducted fan that uses the mechanical energy from the gas turbine to force air rearwards.
An air ioniser (or negative ion generator or Chizhevsky's chandelier) is a device that uses high voltage to ionise (electrically charge) air molecules. Negative ions, or anions , are particles with one or more extra electrons , conferring a net negative charge to the particle.
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A household electric fan A large cylindrical fan. A fan is a powered machine that creates airflow. A fan consists of rotating vanes or blades, generally made of wood, plastic, or metal, which act on the air. The rotating assembly of blades and hub is known as an impeller, rotor, or runner. Usually, it is contained within some form of housing ...
An early example of electromagnetic rotation was the first rotary machine built by Ányos Jedlik with electromagnets and a commutator, in 1826-27. [2] Other pioneers in the field of electricity include Hippolyte Pixii who built an alternating current generator in 1832, and William Ritchie's construction of an electromagnetic generator with four rotor coils, a commutator and brushes, also in 1832.
[2] [3] The reviewer for The Independent called Firman's orchestrations for Enter the Guardsman, "superb", noting that they "add(ed) colour to an elegant score in Jeremy Sams's neat production." [ 4 ] As a keyboardist he played on the recording sessions for Return of the Jedi , Superman , Supergirl , Medicine Man , First Blood , Rambo ll ...
On August 16, 2010, during a Monday Night Football Giants vs. Jets pre-season game, Fireman Ed's inaugural Jets chant in the New Meadowlands Stadium was interrupted by a Giants fan who raised his Giants hat while Fireman Ed's fellow Jets fans stood by. Fireman Ed repeatedly shoved the fan before the fan was escorted away from Ed's chanting post ...