Avsnitt 5

The domed structure is one of the earliest forms of shelter–from African mud huts to frozen igloos to holy shrines and cathedrals. As a design concept, the shape represents the community under the canopy of heaven; as a technological device, the dome is the most efficient way of controlling an internal environment . And today, as we see here, engineers have enlarged and transformed the ancient concept to build some of the world’s most spectacular structures–domed sports stadiums.