How TV works with Dan and Phil

“Hey, how’s that TV work?” 

Beginning his presentation at the University of Illinois Circle Campus on a sunny day, Dan Sandin gives a detailed, technical description of how an analog video image is captured through a Vidicon camera and displayed on a cathode ray tube monitor. Incorporating computer graphics provided by Tom Defanti, Sandin discusses how the electron beam in the camera scans the surface of the camera lens to read the image and then how the electron beam inside of the monitor activates the phosphorus surface to recreate the image out of light. 

Phil Morton provides voice-over commentary throughout the video as well as sound effects (“blip!”) for the computer graphics. 

The date for this title is approximate.