Snakes

George W. Hart


Thirty identical stainless steel parts interlock to make this 7-inch diameter sculpture. I find it to be a a very elegant design, because the parts are so simple. The snake template is shown below.


The key to the structure is in the way groups of three mouths join at right angles and lock everything together. The notches on the back of the necks meet in pairs and prevent any slippage.  The thirty parts hold each other together rigidly, but until the last one is snapped in, it can all fall apart.



Above and below are views along a five-fold axis. If you look carefully, you can see it as a compound of five tetrahedra.  Six snakes, joined mouth to mouth to mouth, form the edges of each tetrahedron.





Copyright 2006, George W. Hart