Inspired by Tesla. Kallman describes how his company has found a way to use an electromagnetic field to keep drones in the air indefinitely The system comprises a ground-based power station with a frame of wires positioned in a roughly circular shape. When turned on, this creates an electromagnetic field in the air near the station. A drone equipped with a special antennae charges by flying into the range of the power cloud. https://futurism.com/drone-charging-mid-flight/ https://theoatmeal.com/static/tesla.html https://theoatmeal.com/blog/tesla_museum_saved