Stretching the Boundaries

Il solido platonico che preferisco

Fra Giovanni da Verona. Tarsia raffigurante un armadio con poliedri. Courtesy Laurom di Wikipedia in italiano.  Fra Giovanni da V...

Sfera cinese, in avorio, fatta di diverse sfere concentriche (British Museum. Original photograph from Ged Carroll) Wikipedia ...

Pierre Meyer is an artist who works with ivory. https://www.maitresdart.com/pierre_meyer-40/parcours_et_realisations.html Great his ...

Puzzle ball. This image is a courtesy of   " The Puzzle Museum http://puzzlemuseum.org". 

From Wikipedia: https://en.wikipedia.org/wiki/Ivory_carving "By the 18th century China had a considerable market in items such as f...

"In modern role-playing games , the dodecahedron is often used as a twelve-sided die, one of the more common polyhedral dice " ht...

Very interesting page at  http://www.alienor.org/Articles/ecriture/instrument3.htm telling that "Les Gallo-Romains possédaient égaleme...

Adapted from http://letarot.com/pages-vrac/pages/Truc-a-trous.html

Adapted from  http://letarot.com/pages-vrac/pages/Truc-a-trous.html

Print! Cut! Fold! Glue! Image obtained from some data in the paper: Duval Paul-Marie. Comment décrire les dodécaèdres gallo-romain...

Adapted from the paper: Etwas Gewisses hievon zu bestimmen waere ein Gewagtes 260 Jahre Dodekaeder-Forschung, by Michael Guggenbe...

Print! Cut! Fold! Glue!

Dodecahedron With Sundial Faces  Palazzo Madama, Torino End  XVII Century

This image is adapted from YouTube  http://www.youtube.com/watch?v=x_2OrVzC46Y It is showing a rock crystal dodecahedron found at Alé...

According to Wikipedia, "a rangefinder is a device that measures distance from the observer to a target, for the purposes of surveying,...

This morning I found the following link: http://sculpture.net/community/showthread.php?t=10801 having a quite interesting discussion on the...

An Etruscan Dodecahedron, by Amelia Carolina Sparavigna Department of Applied Science and Technology Politecnico di Torino, C.so Duca degl...

In a recent  post (April 2012) I have discussed about Roman Dodecahedra. After preparing a model of a Roman Dodecahedron, I was able to inv...

Recently I have read a very interesting paper entitled "The magic dodecahedron of Gauls, that saved Roman legions: Mirror of Universe  ...