Material may offer cheaper alternative to smart windows

MIT scientists have come up with a theory to predict exactly how much light is transmitted through a material, given its thickness and degree of stretch. Using this theory, they accurately predicted the changing transparency of a rubber-like polymer structure as it was stretched like a spring and inflated like a balloon. (Learn more: ) Video: Melanie Gonick/MIT Music sampled from, “The Zeppelin“ by Blue Dot Sessions http://freem