いやー,わざわざ俺をサムネにしなくてもね…このおっさんNature別冊当該号に目を通してないんじゃねーかと思う. http://www.nature.com/nature/journal/v543/n7646_supp/full/543S23a.html Yoichi Ochiai wants to transform online interaction. His company has developed an ultrasonic speaker that projects sound so it's only audible in specified points in space — an innovation that could advance voice-recognition applications. “I believe that direct manip