An inevitable part of owning and using technology is damaging technology - who hasn't dealt with a cracked phone screen at one time or another? It's expensive to replace a damaged phone, so a lot of people will make do with cracked screens for as long as they can, becoming remarkably adept at reading text messages between spiderwebby lines. There may come a time in the future, though - maybe not that far into the future - when we won't have to worry about those cracked screens, because they'll simply fix themselves. Researchers at the University of Melbourne are using 3D printing to develop a self-healing gel that could potentially be used as a coating for delicate devices like phones. Learn more at 3DPrint.com: http://3dprint.com/180984/3d-printed-self-healing-gel/