As a child in Afghanistan, Massoud Hassani made miniature models that the wind could blow about. Sometimes they ended up in a minefield, where he could not retrieve them. Now Massoud has come up with a wind-propelled creation that can undo the threat of mines. Like a giant clump of dandelion seeds, his Mine Kafon rolls about, detonating any mines in its path. “There are 30 million land mines in Afghanistan and just 26 million people,” he says. Each deminer is fitted with a GPS tracking device linked to a website to chart which areas have been cleared.