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the height of a building)
The players were holding by nine pawns (of different colour or type e
Later on straight lined scales were engraved on the surface of the instrument for the conversion of the terrestrial angles in the proportions of lengths but also monthly arcs with curved hour lines for one or more latitudes
while with any given latitude as a sundial
The tetrantas (Quadrant) of Hipparhos (2nd c. B.C.) the height of a building)(the first latitude locator of daily use) It was a measuring instrument which was used in astronomy and navigation for the calculation of astronomical sizes and in topography and in construction for the measurement of terrestrial distances (e. g. the height of a building). It consisted of graduated in degrees quadrant which had an aiming device at one edge and from its centre hung a plumb bob. The latitude of each place could be found directly by