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Old 11-13-2023, 01:05 PM   #6 (permalink)
freebeard
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It's all speculation, of course. Have you ever been in a wind tunnel? They (Darko) use[d] a fabric mesh to calm the air at the throat of the tunnel.



Tufts on a grid on a mesh might work. A circular hoop strung like a badminton racket might do better.Who knows?
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