Roland Piquapille discusses an article on miniature turbines at his
technology blog: “Today, our handheld devices are powered by batteries,
which are heavy
and inconvenient. Fuel cells are just arriving on the market as a
replacement. But there is a new contender: micro gas turbine engines
under development at the MIT. Engineers there shrunk jet engines to the
size of a coat button. And their blades which span an area smaller than
a dime can spin a million times per minute and produce enough
electricity to power your PDA or your cell phone.” (Source: Slashdot)