Standing on the south portico of the White House, a fortnight ago, President Coolidge addressed 500 editors and publisherswho did not hear his voice until a week later. When they did hear it, they were in Manhattan. Still more extraordinary, they beheld him as he spoke. The magician in the case was Dr. Lee DeForest, inventor, assisted by one Moses Koenigsberg, newspaper feature service man. Inventor DeForest had perfected what he called the "phono film," a device that records simultaneously a motion picture and a phonograph record of whatever noises are made near...
To continue reading:
or
Log-In
