An odd and unexpected variation on the classic garden whirly ornaments. It's a VAWT (Vertical Axis Wind Turbine) version that seems to be based on the classic Savonius turbine.
In the video I took the rivet/eyelet out and flattened the thing so we could see how it had been formed. There's also a link in the description to start a long Internet journey into the world of vertical turbines.
https://www.youtube.com/watch?v=maPowP1W7bQ
Jon Knight
2023-05-17 13:10:29 +0000 UTCBig Clive
2023-05-17 03:25:57 +0000 UTCEarl Plotner
2023-05-16 14:55:36 +0000 UTC