A discussion with leading piezo experts on ceramics, nanopositioning, intelligent piezo systems, and weather stations - Dr. Harry Marth, Head of Piezo Technology Innovation, and Dr. Mathias Bach, Head of Piezo Systems at Physik Instrumente (PI), Karlsruhe, Germany. Most people would be looking forward to retirement after a successful career of 45 years. But Dr. Harry Marth is not like most people. Instead, he is most likely the world's foremost expert on advanced piezo nanopositioning technologies. You would never know, meeting him casually, because despite all his achievements over several decades with PI, he has remained humble.