Chorobates

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A chorobates (Greek χωροβἀτης from khŏros; "place" + -batos, "going") was a kind of level used in classical antiquity. composed of a double square, made in the form of a T, described by Vitruvius (Lib. viii). It is believed to be the instrument that was used to level the Roman aqueducts. Typically a staff about 4 feet tall, with crossed beams at the top. Each beam had a plumb bob at each end. Grooves were made in the top of the beams for use as sightlines. This way, right angles could be determined between two points.

[edit] See also

Groma

Dioptra

Chorography

[edit] References

  • This article incorporates content from the 1728 Cyclopaedia, a publication in the public domain.
  • M. J. T. Lewis. Surveying Instruments of Greece and Rome. Cambridge University Press. ISBN 0-521-79297-5. 2001. p 31.

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