[Last week,] four Wave Gliders—self propelled robots, each about the size of a dolphin—left San Francisco for a 60,000 kilometer journey. Built by Liquid Robotics, the robots will travel together to Hawaii, then split into pairs, one pair heading to Japan, the other to Australia. Waves will power their propulsion systems and the sun will power the sensors that will be measuring things like water salinity, temperature, clarity, and oxygen content; collecting weather data, and gathering information on wave features and currents. It’s not going to be an easy journey—the little robots will face rough weather and have to dodge big ships. via ieee spectrum
Image: Liquid Robotics
