falconwolf writes: "Skylifter an Australian aeronautical firm is developing flying saucer shaped lifting balloons as a method to transport heavy cargo including possibly buildings and ships. The flying saucer shape has advantages over other dirigibles such as blimps. The cigar shape of blimps means they have to be pointed in the direction of travel whereas a saucer can travel in any direction. They can go where trains don't. And they don't need traffic cops for wide loads on the road."