The early history of colour TV had several false starts, of which perhaps one of the most interesting might-have-beens was the CBS field-sequential system. This was a rival to the …read more (https://hackaday.com/2026/03/12/how-would-a-field-sequential-home-computer-have-worked/)

Mapping The Sound Field Of An Acoustic Levitator
https://hackaday.com/2026/03/12/mapping-the-sound-field-of-an-acoustic-levitator/

Sound! It’s a thing you hear, moreso than something you see with your eyes. And yet, it is possible to visualize sound with various techniques. [PlasmatronX] demonstrates this well, using …read more (https://hackaday.com/2026/03/12/mapping-the-sound-field-of-an-acoustic-levitator/)

Building a Robot Partner to Play Air Hockey With
https://hackaday.com/2026/03/12/building-a-robot-partner-to-play-air-hockey-with/

Air hockey is one of those sports that’s both incredibly fun, but also incredibly frustrating as playing it by yourself is a rather lonely and unfulfilling experience. This is where …read more (https://hackaday.com/2026/03/12/building-a-robot-partner-to-play-air-hockey-with/)