This copy is for your personal, non-commercial use only. Distribution and use of this material are governed by our Subscriber Agreement and by copyright law. For non-personal use or to order multiple copies, please contact Dow Jones Reprints at 1-800-843-0008 or visit www.djreprints.com.Robots fly, walk, swim and crawl with new sensors and artificial intelligence to spot—and sometimes fix—problems
Magnetic wall-climbing robots from Gecko Robotics can inspect steel tanks to spot corrosion and cracking. Video: Nate Smallwood for The Wall Street JournalA growing cadre of tech companies are stepping up to address a massive problem hiding in plain sight: the aging of trillions of dollars’ worth of bridges, tunnels and factories across the U.S.Continue reading your article with