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• Shadow_square abstract "The shadow square, also known as an altitude scale, was an instrument used to determine the linear height of an object, in conjunction with the alidade, for angular observations. It was invented by Muhammad ibn Mūsā al-Khwārizmī in 9th-century Baghdad. Shadow squares are often found on the backs of astrolabes.".
• Shadow_square thumbnail Astrolabio_andalusí_Toledo_1067_(M.A.N.)_04.jpg?width=300.
• Shadow_square wikiPageID "23649689".
• Shadow_square wikiPageRevisionID "605253685".
• Shadow_square hasPhotoCollection Shadow_square.
• Shadow_square subject Category:Analog_computers.
• Shadow_square subject Category:Astronomical_instruments.
• Shadow_square subject Category:Historical_scientific_instruments.
• Shadow_square subject Category:History_of_astronomy.
• Shadow_square subject Category:Mathematical_tools.
• Shadow_square subject Category:Theory_of_computation.
• Shadow_square type AnalogComputer102708224.
• Shadow_square type AnalogComputers.
• Shadow_square type Artifact100021939.
• Shadow_square type AstronomicalInstruments.
• Shadow_square type Computer103082979.
• Shadow_square type Device103183080.
• Shadow_square type HistoricalScientificInstruments.
• Shadow_square type Implement103563967.
• Shadow_square type Instrument103574816.
• Shadow_square type Instrumentality103575240.
• Shadow_square type Machine103699975.
• Shadow_square type MathematicalTools.
• Shadow_square type Object100002684.
• Shadow_square type PhysicalEntity100001930.
• Shadow_square type ScientificInstrument104147495.
• Shadow_square type Tool104451818.
• Shadow_square type Whole100003553.
• Shadow_square comment "The shadow square, also known as an altitude scale, was an instrument used to determine the linear height of an object, in conjunction with the alidade, for angular observations. It was invented by Muhammad ibn Mūsā al-Khwārizmī in 9th-century Baghdad. Shadow squares are often found on the backs of astrolabes.".
• Shadow_square label "Shadow square".
• Shadow_square sameAs m.06zr3w9.
• Shadow_square sameAs Q7460694.
• Shadow_square sameAs Q7460694.
• Shadow_square sameAs Shadow_square.
• Shadow_square wasDerivedFrom Shadow_square?oldid=605253685.
• Shadow_square depiction Astrolabio_andalusí_Toledo_1067_(M.A.N.)_04.jpg.
• Shadow_square isPrimaryTopicOf Shadow_square.