Technical Journal — Think Round Cube — This cube has a 384 square foot surface area and is 512 cubic feet. Sphere — This sphere has a 384 square foot surface area and is 707.6 cubic feet, which is 195.6 more cubic feet than the cube. You Try It! — The strength of the Monolithic Dome is demonstrated by placing an egg horizontally in the palm of your hands and applying as much pressure as you possibly can. It is extremely diffcult to break.