Chorobates
Encyclopedia
A chorobates was a kind of level
used in classical antiquity
. It was composed of a wooden frame, made in the form of a beam which was fitted with a water level, and two supports at the end of the beam. It is described by Vitruvius
(Lib. viii). It is believed to be the instrument that was used to level the Roman aqueduct
s. The beam had a plumb bob at each end so that it could be placed square on the ground. A groove was made in the top of the beam for use as a sightline, and the beam was parallel to the water level. It enabled levels to be found between two points, and hence a series of levels when planning and surveying the path for an aqueduct.
Regrading
Regrading is the process of raising and/or lowering the levels of land; such a project can also be referred to as a regrade. Regrading may be done on a small scale or on quite a large scale...
used in classical antiquity
Classical antiquity
Classical antiquity is a broad term for a long period of cultural history centered on the Mediterranean Sea, comprising the interlocking civilizations of ancient Greece and ancient Rome, collectively known as the Greco-Roman world...
. It was composed of a wooden frame, made in the form of a beam which was fitted with a water level, and two supports at the end of the beam. It is described by Vitruvius
Vitruvius
Marcus Vitruvius Pollio was a Roman writer, architect and engineer, active in the 1st century BC. He is best known as the author of the multi-volume work De Architectura ....
(Lib. viii). It is believed to be the instrument that was used to level the Roman aqueduct
Aqueduct
An aqueduct is a water supply or navigable channel constructed to convey water. In modern engineering, the term is used for any system of pipes, ditches, canals, tunnels, and other structures used for this purpose....
s. The beam had a plumb bob at each end so that it could be placed square on the ground. A groove was made in the top of the beam for use as a sightline, and the beam was parallel to the water level. It enabled levels to be found between two points, and hence a series of levels when planning and surveying the path for an aqueduct.