News

"Go fly a kite" takes on a whole new meaning

Aug. 23, 2007

Researchers in California believe huge kitelike wind-power generators could tap into the jet stream to supply the world's entire electrical needs.

Paul Dvorak

The jet stream typically blows west to east, 6 to 9 miles over the northern hemisphere, at speeds up to 310 mph.

Wind machines could transmit electricity over aluminum or copper cables — or as microwave beams — to power grids. Atmospheric scientist Ken Caldeira at Stanford University says his calculations show that 1% of the energy in high-altitude winds could satisfy the world's energy needs. Scientists still need to identify materials that could stand up to the jet stream's buffeting, and find a way to reposition generators as the jet stream moves across the sky.

About the Author

Paul Dvorak

Paul Dvorak - Senior Editor
21 years of service. BS Mechanical Engineering, BS Secondary Education, Cleveland State University. Work experience: Highschool mathematics and physics teacher; design engineer, Primary editor for CAD/CAM technology. He isno longer with Machine Design.

Email: [email protected]

Paul Dvorak - Senior Editor
21 years of service. BS Mechanical Engineering, BS Secondary Education, Cleveland State University. Work experience: Highschool mathematics and physics teacher; design engineer, U.S. Air Force. Primary editor for CAD/CAM technology. He isno longer with Machine Design.

Email:=