300 million tunes

Fancy an mp3 player with a 500,000 gigabyte capacity? With that amount of storage space you could probably store every song ever written and a whole lot more. Thanks to British research into molecular switches, this could be the future of data storage. Lee Cronin and Malcolm Kadodwala of the University of Glasgow have successfully assembled a functional nanocluster that incorporates two electron-donating groups, and positioned them precisely 0.32 nm apart. This new type of switch could form the heart of rewritable data storage media that would increase capacity to around 4 petabits per square inch, the researchers say.