Researchers at Duke University have developed MARBLE, an amphibious robot that moves on land and water by shifting three internal weights inside a sealed spherical shell.

Its shell rolls on land and uses passive fins to propel itself across water, allowing it to switch between environments without changing its hardware. MARBLE reached a peak land speed of 1.025 m/s and can move in multiple directions while handling direct contact with obstacles.

@futurism 🧬