TL;DR
A recent Hackaday article discusses a version of Newton's Cradle that appears to operate indefinitely, thanks to some clever engineering. While it looks like a classic desk toy, it actually incorporates a battery and an electromagnetic system to keep the balls swinging. The setup uses an ESP32 microcontroller and a proximity sensor to detect the motion of the balls and injects a pulse of energy at just the right moment.
Why This Was Curated
The article presents a practical project that combines software and hardware elements, making it relevant for software developers interested in embedded systems. However, while it is accessible and offers a unique take on a classic concept, it lacks detailed step-by-step instructions or a comprehensive tutorial, which limits its actionability.