Before revision: A beneficial idea of prestressing was, apparently, familiar to the ancient Rome architects; look, e.g., at the tall attic wall of Colosseum working as a stabilizing device for the wall piers beneath.
After revision: A beneficial idea of prestressing was, apparently, familiar to the ancient Roman architects; look, e.g., at the tall attic wall of Colosseum working as a stabilizing device for the wall piers beneath.