"The e-commerce titan recently received a patent for product-distribution warehouses that float in the sky, and are carried and held aloft by blimps. It's part of Amazon's grand plan to move from ground-based deliveries into the airspace above our heads, where drones would zip quietly overhead, carrying our paper towels, toasters and printer cartridges to us in record time, and generating substantial cost savings for the $887 billion company. The heavenly warehouses, or "aerial fulfillment centers" as Amazon describes them, would be serviced by a fleet of drones, which the company likes to call "unmanned aerial vehicles." "An AFC may be positioned at an altitude above a metropolitan area and be designed to maintain an inventory of items that may be purchased by a user and delivered to the user by a UAV that is deployed from the AFC," the patent document says."