One such example of a heavy-lift drone that has amazed netizens in the recent days is an unmanned aerial vehicle (UAV) that can carry 220 pounds (100 kilograms) of weight. The UAV has been made by ...

Researchers demonstrated the first fully 3D-printed, droplet-emitting electrospray engine. The low-cost device can be fabricated more quickly than traditional thrusters, potentially from on board a ...