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Who Needs Engines? Fly This Helicopter with Your Feet (VOA On Assignment May 24)i
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May 24, 2013 12:43 PM
On Assignment's Rebecca Ward talks to VOA's Roseanne Skirble about a long-standing science challenge: build the world's first minimally capable human-powered helicopter. The challenge has been around since 1980, with the prize still unclaimed. But as Roseanne reports, one group of U.S. university students say they are close to winning.

Who Needs Engines? Fly This Helicopter with Your Feet (VOA On Assignment May 24)

Published May 24, 2013

On Assignment's Rebecca Ward talks to VOA's Roseanne Skirble about a long-standing science challenge: build the world's first minimally capable human-powered helicopter. The challenge has been around since 1980, with the prize still unclaimed. But as Roseanne reports, one group of U.S. university students say they are close to winning.