Wolfram Demonstrations Project

This Demonstration shows a flexible polyhedron made of 16 congruent rhomboids, with some passing through others.

Reference

[1] V. A. Aleksandrov, "New Example of Flexible Polyhedron," (in Russian) Siberian Mathematical Journal, 36(6), 1995 pp. 1215–1224. www.mathnet.ru/php/archive.phtml?wshow=paper&jrnid=smj&paperid=552&option_lang=eng.

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Flexible Frame