One promise of nanotechnology, is the development of new types of material with superior properties to the materials we have today. We already have carbon-reinforced materials, but imagine a plane built entirely out of superlight, superstrong nanomaterials. This will increase fuel efficiency, and decrease the carbon footprint of transport. You could also imagine yourself standing outside, waiting for a bus, on a rainy fall day. How wonderful wouldn’t it be if your clothes were superhydrophobic, so that your jacket would repel ALL water, keeping you completely dry? Or a car with a paintjob that prevents scratches?