Paul MacCready Interview: Toward A Rational Use of Energy

Physicist Paul MacCready discusses the process of designing human-powered flying machines, the unexpected turn his career path took into aeronautical engineering, and the potential he sees for wider adoption of renewable energy sources.

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Paul MacCready conduting a flutter test of Solar Challenger's tail section.
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The solar-powered Solar Challenger in flight.
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Paul MacCready, designer of the human-powered Gossamer Albatross. 
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Pilot Janice Brown lifting off with Solar Challenger.
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Colorado aviator Stephen Ptacek got MacCready's go-ahead to pilot the Solar Challenger for the France-to-England flight.

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