Jan Å indel

January Ondřejův called Šindel (including shingle, Johannes Andreae, Joannes de Praga Jan z near Prague, John of Prague ), ( * about 1375 in Hradec Králové, † 1456 in Prague, according to other sources 1443 ), was a Czech mathematician, astronomer and physician.

Life

January Ondřejův studied at Prague University, where he graduated with the exam for Master of Liberal Arts in 1395. In 1406 he was rector of the school of St. Nicholas, after which he taught in Vienna mathematics and astronomy. 1409 Šindel returned as a professor at the University of Prague back in the following year he became its rector. Meanwhile, he also received some ecclesiastical dignities, among other things, he was a canon of St. Vitus Cathedral, and the dean of the chapter at Vyšehrad. However, the moving time of the Hussite interested him little. Some of his works he wrote in Olomouc, before he returned to Prague.

Works

The humanist and later Pope Pius II was one Šindel to the great scholars of his time. He awakened a great deal with his lectures on the Almagest of Ptolemy. He wrote several treatises on astronomy and medicine, which are not obtained. From him penned star plates still used Tycho Brahe in the late 16th century. But was also Šindel lawyer in both the secular and ecclesiastical law. His writings also lost used Lupač Martin and Daniel Adam z Veleslavína as a basis for their work.

However, a work in which he played a key role, is still in operation today: It is the astronomical clock ( horologe ) at the Prague Old Town Square. Šindel carried out the necessary calculations for the building in 1410 and designed the look of the clock.

See also: List of Rectors of Charles University.