EarthEnergy trilemma: Can power be cheap, clean and secure? When it comes to electricity supply, we're caught in a vicious triangle. A bold scheme that pays big business to switch off could be part of the solution Features
TechnologyElastic battery yarn could power smart clothes A stretchy lithium-ion battery made from carbon nanotubes can be woven into smart textiles to power lights and sensors 51¶¯Âþ