He planned basilicas and aqueducts, and designed powerful war-e ngines capable of hurling rocks weighing three or four hundred pounds. 李贝.西洋科学史.
Similarly the fifth book begins with a discussion of the theori es of Pythagoras, but its real topic is public buildings--fora, basilicas, theaters, baths, pal?stras, harbors, and quays. 李贝.西洋科学史.