Battery-Powered Yeti Guides Antarctic Explorers Past Concealed Crevasses

Moving people and supplies across the Great White South is treacherous, difficult, and expensive with logistical costs constituting as much as 90 percent of an expedition's budget—about $125,000 a trip on average. And that's assuming the convoy isn't swallowed by an ice crevasse en route. But a new radar-equipped… » 3/11/13 11:30am 3/11/13 11:30am