Quadrans


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Quadrans

1. An ancient Roman unit of area approximately equivalent to 631 square meters.

2. See: Teruncius.
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For these colleagues I have published summaries of the discoveries outlined in Instruments of Mass Calculation (see note 6), XIIa and XIIb, separately in "A Vetustissimus Arabic Treatise on the Quadrans Vetus" in Journal for the History of Astronomy 33 (2002): 237-55, and "14th-Century England or 9th-Century Baghdad?
The extended iXBlue product range, including QUADRANS, OCTANS, PHINS and MARINS M series systems, now represents even higher scalability of solutions, from attack craft to aircraft carriers and submarines.
The Quadrantids derive their name from the constellation of Quadrans Muralis (mural quadrant), discovered by the French astronomer Jerome Lalande in 1795.