newatlas.com — When we hear about VTOL (vertical take-off and landing) aircraft, we usually think of passenger-carrying "air taxis." The autonomous Nuuva, however, is being designed to give cargo-carrying helicopters a run for their money.

newatlas.com — Typically, pure-electric crop-spraying drones have a battery life of no more than about 30 minutes per charge. This means that they have to periodically ...