[Alex Murphy]

Researchers from Texas have developed a miniscule ‘micro-windmill’ that is just 1.8mm wide and can transform wind energy into electricity. The team behind the design claim hundreds of the nickel devices could be fitted to a phone case, for example, and users could charge their phone simply by waving it in the air.

[GeronL]

“Pardon me, young man, but can you blow my phone?”