Nissan finally introduced a U.S. version of its goofy geometric Cube in 2009, though it sold two prior generations in Japan since 1998. I first saw the wacky Nissan Cube at the Advanced Clean ...

The ancient Greek mathematician Euclid proved in his Elements of Geometry that there are only five Platonic solids – the regular tetrahedron (four sides that are equilateral triangles), the cube (six ...