IMAGE: PLAN OF THE HOUSE OF ORION, SHOWING THE DISPOSITION OF THE NEWLY DISCOVERED IMAGES (1,2) AND OF THE MOSAICS (3)
The technical skills of the Roman agrimensores - the technicians inwards accuse of the centuriations (division of the lands) too of other surveys such equally planning towns too aqueducts - are but legendary. For instance, extremely accurate projects of centuriations are withal visible today inwards Italia too inwards other Mediterranean countries. Their operate had likewise religious too symbolic connections beingness related alongside the foundation of towns too the Etruscan's tradition.
These technicians were called Gromatics due to their main working instrument, called Groma. It was based on a cross made of iv perpendicular arms each bringing cords alongside identical weights, acting equally plumb-lines. The surveyor could align alongside extreme precision 2 opposite, real sparse plumb-lines alongside reference poles held at diverse distances past times assistants or fixed inwards the terrain, inwards the same agency equally palines (red too white posts) are used inwards modern theodolite surveying.
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