What type of sculpture relies on a power source of some kind.?

Atype of construction where tha main load bearing element are hung for suspension cables that are then suspended from vertical supports anchored into the ground or a riverbed

Why dont early paintings tend to look very realistic

This example of early christian art contains christian symbolism that was unrecognizable by pagans. what is the title of this example of art? a.the rabbula gospelsb.sarcophagus of the church of santa maria antiquac.the sarcophagus of the good shepherdd.the baptism of the disciples