The Roman arch averted tension solely, holding the many masonry in compression, through the keystone towards the piers. Stone in compression has great strength, and the Romans built enormous arched bridges and aqueducts in massive figures. Extending their arch into a tunnel, they invented the barrel vault, with which they https://vymaps.com/US/West-Hills-Masonry-VN23008/?id_new=91f028d46d98c5b158f38e36720f8a1f