http://www.nature.com/nsu/020805/020805-10.html Unwarranted hype? Scientists at Polaroid “reinvent” the principles of photography. Certainly it is surprising how little the technology has progressed over the last 200 years (and the last 100 years in particular). Then: black and white, have to sit still. Now: colour, don’t need quite so much light. 14:40