1 Largest stones over 40 tons were moved 18 miles (29 km), smaller bluestones up to 5 tons were moved 130 miles (210 km). 2  Trajan's column Rome, Italy. 3  Forty-ton drums. 4  The capital block of Trajan's Column weighs 53.3 tons.
37 Million Blueprints Are Printed Every Year. Before construction begins on a job site, blueprints will be printed and re-printed numerous times over by architects, project managers, building owners, engineers and contractors. Our local repographics shop gets an average of 35 print requests a day from this crowd.
Various base materials have been used for blueprints. Paper was a common choice; for more durable prints linen was sometimes used, but with time, the linen prints would shrink slightly. To combat this problem, printing on imitation vellum and, later, polyester film (Mylar) was implemented.n the early 1940s, cyanotype blueprint began to be supplanted by diazo prints, also known as whiteprints, which have blue lines on a white background; thus these drawings are also called blue-lines or bluelines. Other comparable dye-based prints are known as blacklines.