A plane with no moving parts? For more than 100 years, aircraft have been propelled using moving surfaces such as propellers and turbines. Now, for the first time, a team of US-based engineers has designed and successfully test flown a small aircraft using technology that isn't propelled by moving parts or fossil fuels. The prototype plane uses a technology called ionic wind, an electronic gradient from positive to negative charge, to push the craft forward. The new prototype uses positively cha