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Could circular runways be the future of air travel? Aviation expert Henk Hesselink of the Netherlands Aerospace Centre believes so.A film for BBC World Hacks by Dougal Shaw. Please subscribe HERE http://bit.ly/1rbfUogWorld In Pictures https://www.youtube.com/playlist?list...Big Hitters https://www.youtube.com/playlist?list...Just Good News https://www.youtube.com/playlist?list...
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