(共13张PPT)
In the history of television, there were many inventors working on the idea of watching pictures on a screen. Inventors from all over the world had been working on transmitting pictures to a screen since the 1830s, but the first physical television didn’t appear until the 1900s. Five men became the most famous inventors of what we know today as television.
A German inventor named Paul Nipkow invented the first rotating (旋转的) disk that would allow pictures to transmit over wire in 1884. His discovery was the first electromechanical (电动机械的) television scanning system in the world.
John Baird became famous when he invented the first pictures in motion that were televised in Europe in 1924. He later