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Astrolabe
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An astrolabe is an astronomical instrument dating to ancient times. It serves as a star chart and physical model of the visible half-dome of the sky. Its various functions also make it an elaborate in
North African, 9th century ce, planispheric astrolabe. Khalili Collection.
North African, 9th century ce, planispheric astrolabe. Khalili Collection.
A modern astrolabe made in 2013, in Tabriz, Iran.
A modern astrolabe made in 2013, in Tabriz, Iran.
16th-century woodcut of the measurement of a building's height with an astrolabe
16th-century woodcut of the measurement of a building's height with an astrolabe
A modern reconstruction of the spherical astrolabe of Ptolemy, 2nd C.E., in Kotsanas Museum of Ancient Greek Technology, Athens.
A modern reconstruction of the spherical astrolabe of Ptolemy, 2nd C.E., in Kotsanas Museum of Ancient Greek Technology, Athens.
Hypatia
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Hypatia was a Neoplatonist philosopher, astronomer, and mathematician who lived in Alexandria, at that time in the province of Egypt and a major city of the Roman Empire. In Alexandria, Hypatia was a
Astrolabe
…c. 335–405) wrote a detailed treatise on the astrolabe. The invention of the plane astrolabe is sometimes wrongly attributed to Theon's daughter Hypatia (born c. 350–370; died 415 ce), but it is known to have been used much earlier. The misattribution comes from a misinterpretation of a statement in a…
Hypatia's father Theon of Alexandria is best known for having edited the existing text of Euclid's Elements, shown here in a ninth-century manuscript
Hypatia's father Theon of Alexandria is best known for having edited the existing text of Euclid's Elements, shown here in a ninth-century manuscript
Original Greek text of one of Synesius's seven extant letters to Hypatia from a 1553 printed edition
Original Greek text of one of Synesius's seven extant letters to Hypatia from a 1553 printed edition
Drawing from the Alexandrian World Chronicle depicting Pope Theophilus of Alexandria, gospel in hand, standing triumphantly atop the Serapeum in 391 A
Drawing from the Alexandrian World Chronicle depicting Pope Theophilus of Alexandria, gospel in hand, standing triumphantly atop the Serapeum in 391 AD
Illustration by Louis Figuier in Vies des savants illustres, depuis l'antiquité jusqu'au dix-neuvième siècle from 1866, representing the author's imag
Illustration by Louis Figuier in Vies des savants illustres, depuis l'antiquité jusqu'au dix-neuvième siècle from 1866, representing the author's imagining of what the assault against Hypatia might have looked like