[Picture: Herbert E. Ives]However, Herbert E. Ives of Bell Labs gave the most dramatic
demonstration of television yet on April 7, 1927, when he field tested
reflected-light television systems using small-scale (2 by 2.5 inches) and
large-scale (24 by 30 inches) viewing screens over a wire link from Washington
to New York City, and over-the-air broadcast from Whippany, New Jersey. The
subjects, who included Secretary of Commerce Herbert Hoover, were illuminated
by a flying-spot scanner beam that was scanned by a 50-aperture disk at 16
pictures per minute.