Bøger af Ralph D. Lorenz

This book describes how sand dunes work, why they are the way they are in different settings, and how they are being studied. It compares and contrasts the characteristics and formation of sand dunes on Earth, Mars and Titan.

Few books discuss items like boomerangs and Frisbees and this is the first to give detailed technical discussion to the flight of rotating bodies. This book develops the theme of disc-wings and spinning aerospace vehicles in parallel and gives recreational examples.