Giovanni di Dondi
Jacopo and its son Giovanni de' Dondi are Italian teachers of the 14th century at the university of Padoue. They are pioneers of the clock industry. Giovanni de' Dondi develops after 16 years of research a astronomical Horloge and Planétarium very elaborate, Astrarium, only 60 years after the appearance of the first European Horloge S. For that it models the solar system with a high mathematical degree of accuracy.
The family of Dondi
The father, Jacopo de' Dondi (1290 - 1359), is graduate university of padoue before becoming pharmacist with Chioggia. He turns over to the university in 1342 to learn medicine there.In 1344, It supervises the construction of a public clock on the lathe of Palazzo Capetanato on behalf of Prince Ubertino de Carrara. This clock counted and struck the hours over 12 midnight and indicated the phase of the moon and the signs of the zodiac. The clock and the tower are destroyed by lianais in 1390.
Dondi dall' Orologio (Iacopo) (1298 - 1359) was doctor, alchemist, astrologer and Italian technical writer.
About 1352, it writes its Treaty of the clocks which is important to locate the European techniques of the time. Chinese Yan Su wrote, about 1030, a treaty of clock industry which was more advanced than the multiple treaties on the Clepsydre S of traditional Antiquity. It will be necessary to await the 14th century and the treaty of Dondi to have an equivalent in Europe of it.
Giovanni de' alive Dondi with his/her father of 1348 has 1359, division its interest for astronomy and the clock industry. In 1348 it begins its work on its astrarium. It describes in detail its project whose intellectual design continues until 1364: its manuscripts are sufficiently precise to be able to rebuild specimens of its clock. In 1371 He becomes ambassador with Venice, but he must return since 1372 following the conflict between Padoue and Venice. He finishes his life as teacher at the University of Pavia. He dies in Milan in 1389.
Astrarium
The Astrarium is regarded as of the time as a great technical success. Giovanni Manzini of Pavia writes into 1388 that it is a work
Description
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