20 November

Platonic solid of the day - the cube. Probably the most famous of all the solids. Used together with other right-angled solids as the basis for most of our building, as straight walls give you the most space on either side of a wall - the most efficient way to organize living space. But also the weakest of all the solids, you need to brace those right-angled corners in multiple ways, to prevent the structure collapsing. https://upload.wikimedia.org/wikipedia/commons/4/48/Hexahedron.gif