One of these additions references latitude "34 and a half," an unusual phrasing that points to an engraver unfamiliar with astronomy. The astrolabe’s Hebrew modifications align with the ...

Apparently the astrolabe, a device used to determine the location of celestial bodies, was invented by a woman – the Alexandrian mathematician, philosopher and astronomer Hypatia. Women have played a ...

According to the 10th-century astronomer Abd Al-Rahman Al-Sufi, there are more than 1,000 applications for an astrolabe, from ...