Portal:Mathematics/Featured picture/2008 06

Picture of the month

The Sierpiński pyramid is a higher dimension analog of the Sierpiński triangle. It is a fractal formed by repeatedly shrinking a regular tetrahedron to one half its original height, putting together four copies of this tetrahedron with corners touching, and then repeating the process. The Sierpiński pyramid has a non-zero, finite surface area and zero volume.