Energy & Green Tech

Rolls-Royce: Zero emissions bird set for 2020

Rolls-Royce has taken the wraps off its one-seater electric plane. This was a first look that drew global interest from news sites last week, as the big date is set for Spring next year to fly. The plane could become the ...

Energy & Green Tech

A cooling system without harmful refrigerants

A discovery from 1917 becomes viable for the future. A team of researchers at the Fraunhofer Institute for Physical Measurement Techniques IPM is developing efficient magnetocaloric cooling systems that make do without harmful ...

Energy & Green Tech

A new way to provide cooling without power

MIT researchers have devised a new way of providing cooling on a hot sunny day, using inexpensive materials and requiring no fossil fuel-generated power. The passive system, which could be used to supplement other cooling ...

Energy & Green Tech

Why aren't there electric airplanes yet?

As electric cars and trucks appear increasingly on U.S. highways, it raises the question: When will commercially viable electric vehicles take to the skies? There are a number of ambitious efforts to build electric-powered ...