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In 1925, the British John lodge. Baird, Krakow, Neptune, according to a German engineer design of Krakow, Neptune, the "disc" has carried on the new research, invented the world's first TV set, and a mechanical scanning of the TV cameras
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TV inventor baird
The receiver. Screen resolution was only 30 lines, the scanner can only 5 per second sweep scanning area. The picture itself only 2 inches tall and an inch wide. A big shop in London made a performance to the public.