Apparently, if you have a material that is waterproof enough, you can actually get drops to bounce like a rubber ball.
Unlike a coating, this is a permanent feature of the material because it literally has a microscopic pattern etched into it by a laser.
This could eventually lead to applications like the ultimate non-stick kitchen pan or a plane that can never get ice buildup on the wings. By far the most interesting material innovation since last year’s hyper-black material that is practically impossible to see detail in.