MARTYN F. CHILLMAID / SCIENCE PHOTO LIBRARY MARTYN F. CHILLMAID / SCIENCE PHOTO LIBRARY
Parafoil in flight. Parafoils are fabric wings that have separate cells that are inflated by the air as they are deployed. The parafoil was developed in 1964 by the Canadian-US inventor Domina Jalbert. Parafoils are now used both in parachute designs and in windsports where flyers use thermal updrafts rising from hillsides. Photographed over the Malvern Hills, Worcestershire, UK.
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