Before flat screen technologies took over, we associate TV with the CRT. But there were other display technologies that worked, they just weren’t as practical. One scheme was the Nipkow disk, and ...

One of the more impressive presentations of a gadget at a recent Maker Fair was a floor-mounted four-hoop device with LEDs along each hoop. The hoops were circular in shape as though they were the ...

In Electromechanical Displays, Part 1: The Nipkow Disk, the Nipkow disk was considered as a possible low-cost, mechanically-simple, perspicuous display like that of oscilloscopes. The Nipkow disk ...

Television as we now know it, an electronically scanned and reproduced image, was a development of the 1930s. I’ll spend more time discussing electronic TV at a later date. For now though, let’s take ...