Structural Stirrups how nature makes them perfectly #stirrupDesign #stirrups Tree Growth Rings

3 years ago
1

Structural Stirrups how nature makes them perfectly #stirrupDesign
Here is part one https://youtu.be/sTjLQTbCb30 and part 3 will also be very interesting, as I reveal the ''box design'' of these ''rings/stirrups".
https://www.amazon.com/hz/wishlist/ls/3UBMVWND65U4M?ref_=wl_share

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