The Crown of Thorns (puzzle work) is a woodworking technique of tramp art[1] using interlocking wooden pieces that are notched to intersect at right angles forming joints and self-supporting objects, objects that have a "prickly"[2] and transparent quality. Common examples include wreath-shaped picture frames that look similar to Jesus' "crown of thorns". Larger-scale crowns may use the principles of tensegrity structures, where the wooden sticks provide rigidity and separate cables in tension carry the forces that hold them together.
Original source: https://en.wikipedia.org/wiki/Crown of Thorns (woodworking).
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