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An electric organ, also known as electronic organ, is an electronic keyboard instrument which was derived from the harmonium, pipe organ and theatre organ. Originally designed to imitate their sound, or orchestral sounds, it has since developed into several types of instruments: Hammond-style organs used in pop, rock and jazz;
Post First World War German fighters were fitted with electrical synchronizers. In such a gear, a contact or set of contacts, either on the propeller shaft itself, or some other part of the drive train revolving at the same number of revolutions per minute, generates a series of electrical pulses, which are transmitted to a solenoid driven ...
Technology played a significant role in World War II.Some of the technologies used during the war were developed during the interwar years of the 1920s and 1930s. Many were developed in response to needs and lessons learned during the war, and others were beginning to their development as the war ended.
Interconnection of local generation plants and small distribution networks was greatly spurred by the requirements of World War I, where large electrical generating plants were built by governments to provide power to munitions factories; later these plants were connected to supply civil load through long-distance transmission. [54]
Perhaps the most famous fighter plane during World War 1 was the Fokker as it was the first to include a synchronized machine gun. [23] [24] [25] Towards the end of the conflict, aircraft carriers were used for the first time, with HMS Furious launching Sopwith Camels in a raid to destroy the Zeppelin hangars at Tønder in 1918. [26]
The Telharmonium (also known as the Dynamophone [1]) was an early electrical organ, developed by Thaddeus Cahill c. 1896 and patented in 1897. [ 2 ] [ 3 ] [ 4 ] The electrical signal from the Telharmonium was transmitted over wires; it was heard on the receiving end by means of " horn " speakers.
In the years immediately following World War II, the military was by far the most significant patron of university science research in the U.S., and the national labs also continued to flourish. [20] After two years in political limbo (but with work on nuclear power and bomb manufacture continuing apace) the Manhattan Project became a permanent ...
At the same time, the research institute of the German Post (RPF) begins with development work for a color television methods, but which are later reinstated due to the Second World War. 1936 Olympic Games in Berlin broadcast live. "Olympia suitcase", battery-powered portable radio receiver, introduced.