Method to manufacture sundial; involves folding sundial in form of convex polyhedron, preferably cube, without using any additional elements, e.g. gnomon

摘要

The method involves folding the sundial in the form of a convex polyhedron without additional elements. There is no gnomon. The convex polyhedron is foldable. A scale is marked on paper, cardboard, foil or another foldable material. Preferably, the polyhedron is a cube. An Independent claim is included for a sundial manufactured according to the method.