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Works of Galileo Galilei, Part 4: Astronomical Works, that is, all that Appertains to the Copernican System, and to the Project on Longitudes, Volume 1, Astronomy
This codex contains important manuscripts in which Galileo Galilei (1564–1642) defended the Copernican theory that the Earth moves around the sun, which he had confirmed by observation with the telescope he had designed, which offered greatly enhanced magnification compared to older telescopes. The principal documents in the volume are letters, dating from 1614-15, to his friend and student Benedetto Castelli, to the Jesuit priest Piero Dini, and to the grand duchess of Tuscany, Christina of Lorraine. In each of these letters, Galileo discussed the relationship between scientific theory and ...
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National Central Library of Florence
The Meccan Revelations
Muḥyiddin ibn Arabi (1165–1240 AD, 560–638 AH), also known as al-Shaykh al-Akbar (the Great Shaykh), was a Muslim mystic and philosopher of Andalusian origin. He was born in Murcia but his family later moved to Seville. Ibn Arabi’s life was divided almost equally between West and East. After traveling extensively in North Africa, he embarked on a spiritual journey from his native Spain. He arrived in Mecca in 1202, where he spent three years. He then spent years traveling in Syria, Palestine, Iraq, and Turkey. He died ...
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Bibliotheca Alexandrina