By Johan C.-E. Stén
The Finnish mathematician and astronomer Anders Johan Lexell (1740–1784) used to be a long-time shut collaborator in addition to the educational successor of Leonhard Euler on the Imperial Academy of Sciences in Saint Petersburg. Lexell was once first and foremost invited by means of Euler from his local city of Abo (Turku) in Finland to Saint Petersburg to aid within the mathematical processing of the astronomical information of the drawing close transit of Venus of 1769. many years later he grew to become a normal member of the Academy. this is often the first-ever full-length biography dedicated to Lexell and his prolific medical output. His wealthy correspondence particularly from his grand journey to Germany, France and England finds him as a lucid observer of the highbrow panorama of enlightened Europe. within the skies, a comet, a minor planet and a crater at the Moon named after Lexell additionally perpetuate his memory.
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Additional info for A Comet of the Enlightenment: Anders Johan Lexell's Life and Discoveries
24. E65). On the other hand, the expression they have in common is typical of works in integral calculus of the time. 30 2 Humble Beginnings Philosophical Faculty of Uppsala University for 19 February 1763 state that Lexell, during the absence of Professor Meldercreutz,20 had quickly applied for permission to preside the dissertation of the thesis as a recommendation for “some position in Stockholm” and, consequently, a student by the name of Erik Östling was assigned to defend the thesis (pro exercitio).
3). The professors usually lectured in Latin, but to a growing extent also in Swedish, when the terminology permitted it. In addition to the public lectures in the Academy’s lecture rooms, the professors were entitled to arrange private courses, so-called collegia, in their homes for an additional fee. Such courses were rarely organised, however, considering the additional public and practical duties of the professors. For instance, according to the Academy’s charter of 1655, the Professor of Mathematics was responsible for the education in arithmetic, algebra and the theory of numbers, theoretical and applied geometry, plane and spherical trigonometry, geodesy, mechanics, music, optics and architecture.
It was Finland’s first university, founded in 1640, and the forerunner of today’s University of Helsinki [63, 80]. The cultural and commercial ties between Åbo and the towns of Sweden proper were close. The main examples and influences came from the capital Stockholm as well as the nation’s oldest university town and episcopal see, Uppsala. The two major landmarks of Turku—the old cathedral and the majestic stone castle in the harbour—bear witness to the town’s importance since medieval times. For the inhabitants of Finland, the first half of the eighteenth century was a time of particular hardship and distress.
A Comet of the Enlightenment: Anders Johan Lexell's Life and Discoveries by Johan C.-E. Stén