Castle Building Gets Medieval, Bertrand Piccard, and GPS Atari Art

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On this week’s show, castle builders in France use medieval technologies and techniques to build a castle…from scratch. Also, we have an interview with Bertrand Piccard, who wants to one day fly a solar-powered plane, non-stop, around the world. And we end with one podcast listener’s amazing art project. He and his buddies use GPS and their bikes to make geo-spatial art!

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