历史上最伟大发明的真相
Invention” was named after Philo T. Farnsworth, the nominal father of television. But his invention was neither his nor an invention. Teams of scientists and tinkerers all around the world were working to build, essentially, a radio for images—i.e.: to combine the technology of a wireless telegraph with the magic of a movie projector. One key was the cathode24) ray tube, a vacuum with an elect
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