A robot from Canada, named hitchBOT, is now touring Germany. Around 1.2 meters tall, it has a face lit up by LEDs and employs speech recognition technology. Our reporter Christoph Hartmann picked up hitchBOT.
Researchers at the University of Bonn have applied the principle to create water-repellent coatings for materials. Such an air layer on a tanker’s hull, for example, could reduce the ship’s frictional drag in the water, thereby saving fuel.