Foam tape

Talking Booby Trap

Talking Booby Trap

People snatching your top-secret stuff? Here’s a sneaky gizmo to keep those snoops away.

The Autophenakistoscope

The Autophenakistoscope

Motorize a phenakistoscope, a 19th-century parlor novelty that preceded motion pictures, and keep its frames synched to an LED strobe by using a sensor and an Arduino microcontroller. Invented in 1832 by Joseph Plateau, this device creates a moving picture from a sequence of stills arranged on a spinning disk and viewed through strategically cut […]