New "multifunctional" glass is not only crystal clear -- unlike all other glass, which is reflective by nature -- but it also causes water droplets to bounce right off its surface. http://ff.im/Vqpyy
IT's invention is created by a simple surface pattern, which consists of an array of nanoscale cones that are roughly five times as tall as their base width -- this method was adapted from techniques currently used in the semiconductor industry to coat and etch glass. The glass itself is coated with several thin layers, including a photoresistant layer that is illuminated with a grid pattern and then etched away. These etchings after each successive layer produce the conical shapes, which are completely responsible for the unique characteristics of the glass.
The glass is self-cleaning, anti-reflective, and superhydrophobic. If it ever gets to be as strong as Corning's Gorilla Glass, MIT will have effectively created "the perfect glass."