Testing for Dream Chaser Space System completed

NASA's Marshall Space Flight Center in Huntsville, Ala., successfully completed wind tunnel testing for Sierra Nevada Corp. (SNC) Space Systems of Louisville, Colo. The test will provide aerodynamic data that will aid in ...

Leicester partnering world sidecar champions

The Department of Engineering at the University of Leicester is collaborating with Ben and Tom Birchall, former World Sidecar Champions, to improve the performance of their F2 sidecar at this year's Isle of Man Tourist Trophy ...

Wind tunnel begins operations

On hot days it is often very still in cities because the high density of buildings prevents the air from circulating freely. In the newly commissioned wind tunnel operated by Empa and the ETH Zurich wind effects and thermal ...

Optimizing large wind farms

Wind farms around the world are large and getting larger. Arranging thousands of wind turbines across many miles of land requires new tools that can balance cost and efficiency to provide the most energy for the buck.

Flying fish glide as well as birds

How well do flying fish fly? This is the question that puzzled Haecheon Choi from Seoul National University, Korea. Measuring aerodynamic forces on dried darkedged-wing flying fish in a wind tunnel, Choi and Hyungmin Park ...

Why are male spiders small while females are giant?

'Bridging', an unusual mode of getting around frequently used by vegetation-inhabiting spiders to cross large gaps, may partly explain the tendency for male spiders to be much smaller than females. Researchers writing in ...

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