Farnsworth transmits an image through electronic means by using a device called an image dissector
In 1927, Farnsworth's "image dissector
" camera tube transmitted its first image, a line.
He created what he liked to call an "image dissector
tube." It was a vacuum tube that could shoot streams of images and display them over a fluorescent screen.
The data that led to the discovery were recorded by the Intensified Image Dissector
Scanner on the National Optical Astronomy Observatories' 84-inch telescope on Kitt Peak in Arizona.
Burns uses the story of why the inventor of image dissectors
, vacuum tubes and cathode-rays became disenchanted with his own creation to ground the idea of how the early promise of television was redefined and interpreted in the 1950s.