Eindhoven’s Massoud Hassani of Hassani Design BV emulated natural "technology" with his Mine Kafon, a low-tech landmine detector that is powered by gravity and wind energy. It contains a GPS chip to precisely transmit the location of mines it has detected or detonated. The 175-pound prototype is heavy enough to trip land mines while rolling across the ground or down hills in the outskirts of, say, Kabul, Afghanistan, where Hassani used to play as a child with homemade wind-powered toys alongside his younger brother.