Breakthrough

A recent report describes how researchers in the US have invented a yarn that can generate electricity simply by being bent or twisted. Clothes made from the fabric could generate enough electricity to power a mobile phone or iPod, the scientists say.

The work is an example of 'energy scavenging' - technology aimed at extracting useable energy from the environment to power small electronic devices where power might otherwise be difficult to come by, such as in the deep jungle.

Just as cellular phone technology has enabled developing regions to leapfrog high-cost communications infrastructure, nano-science holds the promise for more of the same. This example reinforces two points. First, nano-science, specifically, and technological innovation in general holds great potential for decentralized energy development - good news for emerging economies. Second, scale up of these technologies requires investment, underscoring the need for policies to sustain development programs. Finally, it would not hurt if paparazzi could get a shot of Bono in a "scavenger" suit. Perhaps a little guerilla marketing combined with scavenger fashion will be the new craze?