air well by Achille Knapen

Published September 3, 2012 at 600 × 800 in Extracting Water from Air
Belgian inventor Achille Knapen built an air well on a 600-foot high hill at Trans-en-Provence in France.

Belgian inventor Achille Knapen built an air well on a 600-foot high hill at Trans-en-Provence in France.

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Belgian inventor Achille Knapen built an air well on a 600-foot high hill at Trans-en-Provence in France.