Drones are not immune to the whole “What goes up must come down” thing, and their descent is not always planned. If a drone falls out of the sky, the plummeting load can weigh up to a dozen pounds and be accompanied by four spinning rotors ready to rip into, or lop off, anything that gets in their way. Amber McDonald, CEO and one of the founders of the company Indemnis, first saw this problem when working in the film industry, so she, and her team, set out to fix it.