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CORRIERE SARA

CORRIERE SARA

Astrolab (dated 9th century): This was for measuring the altitude of heavenly bodies above the horizon, and so determining (among other things) the time of day or night. Readings are taken by means of rotatable alidade, a diametrical rule with sights.

Astrolab (dated 9th century): This was for measuring the altitude of heavenly bodies above the horizon, and so determining (among other things) the time of day or night. Readings are taken by means of rotatable alidade, a diametrical rule with sights.

Arabic brass astrolabe dating from 16th century, Damascus Museum, Syria

Arabic brass astrolabe dating from 16th century, Damascus Museum, Syria

Brass Planispheric Astrolabe - Iran or Iraq (10th century) ~ The Museum of Islamic Art Doha, Qatar.

Brass Planispheric Astrolabe - Iran or Iraq (10th century) ~ The Museum of Islamic Art Doha, Qatar.

Астролябия – чудесный компьютер древности

Астролябия – чудесный компьютер древности

Filippo Negroli (1510-1579), Milano - ITALIA

Filippo Negroli (1510-1579), Milano - ITALIA

Muḥammad ibn Saʻīd as-Ṣabbān, Astrolabe, 1081-1082, Brass, Hispano-Moorish. Diameter: 13.8 cm. Courtesy of the Museum of the History of Science (http://www.mhs.ox.ac.uk/), Oxford, United Kingdom.

Muḥammad ibn Saʻīd as-Ṣabbān, Astrolabe, 1081-1082, Brass, Hispano-Moorish. Diameter: 13.8 cm. Courtesy of the Museum of the History of Science (http://www.mhs.ox.ac.uk/), Oxford, United Kingdom.

Astrolabe - Wikipedia, the free encyclopedia

Astrolabe - Wikipedia, the free encyclopedia

Nocturnal, Italy, 17th century. A nocturnal is an instrument used to determine the local time based on the relative positions of two or more stars in the night sky.

Nocturnal, Italy, 17th century. A nocturnal is an instrument used to determine the local time based on the relative positions of two or more stars in the night sky.

Planispheric astrolabe - Astrolabe - Wikipedia, the free encyclopedia

Planispheric astrolabe - Astrolabe - Wikipedia, the free encyclopedia

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