UC Berkeley Researchers Say Drone Could Fly for Days with New PV Engine - Unmanned Aerial
UC Berkeley researchers have claimed a new record in photovoltaic (PV) efficiency, an achievement they say could lead to an ultra-light engine that could power drones for days. For the past 15 years, the efficiency of converting heat into electricity with thermovoltaics has been stalled at 23%...
unmanned-aerial.com
