Sea Bubbles start-up founders Alain Thebault (L) and Anders Bringdal (R) stand on board a Sea Bubble electric maritime "flying taxi" during a demonstration on May 20, 2018 on the river Seine in Paris. Aeronautical engineers and watermen Anders Bringdal and Alain Thebault are co-founders and developers of the Sea Bubbles zero-impact transportation ecosystem. AFP / Lionel Bonaventure
