Wind Machines on the Beach

[Weird1]

These are unbelievable

https://www.youtube.com/watch?v=xqzOrV7jOEw

enjoy watching as much as my wife and I have.

Cheers Keith

[JA]

Thanks for sharing Keith. Although I'd seen them before, I was great to see them again as they're truly incredible.

Best
JA

[julianh72]

You can 3D print one, if you want to see how the mdchanism works (or you just want the coolest "Executive Toy" in the office). Eg see
https://www.thingiverse.com/thing:48087/#files