The idea originated during his studies in New York, when he saw mountaineers cleaning the windows of skyscrapers. There must be a better and safer way, thought Stefan Spanjer (30) He developed a robot that is able to clean entire facades.
The idea originated during his studies in New York, when he saw mountaineers cleaning the windows of skyscrapers. There must be a better and safer way, thought Stefan Spanjer (30) He developed a robot that is able to clean entire facades.