| Phased arrays of ultrasonic transducers allow levitating small objects like tiny foam balls and move them around. When the ball is moved fas...
| Phased arrays of ultrasonic transducers allow levitating small objects like tiny foam balls and move them around. When the ball is moved fas...
| A fidget spinner is a rotating contraption ideal to toy your time away with persistance of vision. You'll soon be experimenting with display...
| -- Hey guys, look what I made. I put a ball bearing in the center of this flat multi-lobed structure so that it can spin along its axis. Tha...
| This will be a Persistance Of Vision fidget spinner.
| Buy it here!A propeller clock, also known as a Persistance Of Vision (POV) display is based on a mechanically moving led row. This led row i...
| Buy it here!A propeller clock, also known as a Persistance Of Vision (POV) display is based on a mechanically moving led row. This led row i...