Want To Learn Binary? Draw Space Invaders!

This was the week that I accidentally taught my nearly ten-year-old son binary. And I didn’t do it on purpose, I swear. It all started innocently enough. He had a week vacation, and on one of those…

Spinning CRT Makes A 360 Degree Audio Oscilloscope

A question for you: if the cathode ray tube had never been invented, what would an oscilloscope look like? We’re not sure ourselves, but it seems like something similar to this mechanical tac…

A New Spin On 360 Degree Displays

Back in 2018, [Salah] created a prototype display that seems to defy logic using little more than a Pringles can and a fast motor. While not volumetric, this hack does show the same 2D image from a…

3D Zoetrope Uses Illusion To Double The Frames

Although film and animation have come quite a long way, there’s still something magical about that grandaddy of them all, the zoetrope. Thanks to persistence of vision, our eyes are fooled in…

Wiggling Screen And DLP Power This Volumetric POV Display

It seems like the world is ready for a true 3D display. We’ve seen them in sci-fi for decades now, with the ability to view a scene from any angle and inspect it up close. They’ve remai…

Big Spinning Disk Makes A Small Color Video Display

The earliest televisions used a spinning disk technology called the Nipkow disk, which is exactly what [Science ‘n’ Stuff] recreated with their Arduino-based mechanical color television…