Past Forward: In 1926, TV was Mechanical: John Logie Baird's Television was Based Around a Spinning Metal Disk

Scottish inventor John Logie Baird had a lot of ingenious ideas, not all of which caught on. His phonovision was an early attempt at video recording, with the signals preserved on phonograph records. His noctovision used infrared light to see objects in the dark, which some experts claim was a precursor to radar.