In a world where high-tech military gadgets dominate the battlefield, a new innovative paper aircraft defies expectations. Cheap, expendable, and surprisingly effective, the Corvo Precision Payload Delivery System is shaping up to be an origami weapon of doom in Ukraine’s battle against Russia. A cheap and flat-packed drone made out of cardboard that can be assembled quickly and easily, despite its humble appearance, the new Australian unmanned aerial vehicle can also pack quite a punch. With a flight range of up to 75 miles, it can deliver ammunition, food, and medicine directly to the front lines, carrying payloads of up...