Solar Impulse 1 and Solar Impulse 2 are airplanes powered by solar energy. André Borschberg and Bertrand Piccard from Switzerland created these planes as an experiment. The goal of this experiment is to fly around Earth using only solar energy.
References[change | change source]
- Cardwell, Diane (1 May 2013). "Cross-Country Solar Plane Expedition Set for Takeoff". New York Times. Retrieved 2 May 2013.