WIRED StaffScienceDec 24, 2002 2:00 AMSlideshow: After the Fall: Help for ClimbersA new device tells rescuers where to dig for alpinists trapped in an avalanche. It also gives the person's heart, respiration and blood oxygen levels. By Mark Baard.Save StorySave this storySave StorySave this storySee related story: After the Fall: Help for Climbers