Submission + - Opalescent plastic could be both pretty and handy
AnotherDaveB writes: A group of researchers from the University of Southampton, in England, and the German Plastics Institute in Darmstadt, led by Jeremy Baumberg, have discovered how to create a plastic with th Opal's iridescent properties. Their invention could be used to make a sparkling substitute for paint, banknotes that are hard to counterfeit and chemical sensors that can act as visible sell-by dates.