Nobody needs to reinvent the wheel, but reinventing the colonoscope is definitely worth somebody’s time. Mark Rentschler, an associate professor at the °ÄÃÅ¿ª½±½á¹û2023¿ª½±¼Ç¼, is one of those people. He and his team have been working on the wormy robot, above, as a replacement for the usual flexible-camera-tube...