Arch proportions - image and description of the use of arch in architecture. As a security preventative measure, It is advised that you place a metal liner between the stone and the fire.
The stratodesic type of triangulation, as a particular case of a geodetic grid, is a mesh construction consisting of triangles. The distinguishing feature of stratodesics is that they are symmetrical with respect to the vertical axis (ie the horizontal belts are parallel and strictly horizontal), in contrast to the classical fuller's geodesics, which are symmetric with respect to the center. what is shown on the pictures is a meridian-parallel type of the dome.