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This tensegrity is quite special to me. It contains only four struts and ten strings and it forms a perfect tetrahedron. It looks very simple and in fact it is, but nevertheless I never saw it before. I have seen perfect tetrahedrons before but in these cases the struts touched eachother or the structure contained fifteen strings. I guess this tensegrity is another example of "less is more".

The tensegrity below is known as a tetrahedron but is in fact a twisted truncated tetrahedron.

tensegrity 196
tensegrity 217

A 3D image of this tetrahedron can be seen on the page3D images

Below ten tetrahedrons knit together.

At the right: a tetrahedron with two half circles as struts.

tensegrity 219
tensegrity 218
Marcelo Pars