Math Monday: Balloon polyhedra
Balloon polyhedra By George Hart for the Museum of Mathematics For making mathematical models of polyhedra, a convenient and inexpensive material is the long clown balloon. This dodecahedron (made of ten balloons) and icosahedron (made of six balloons) are two examples from a study of Mathematical Balloon Twisting by Erik Demaine, Marty Demaine, and Vi […]