By Johan C.-E. Stén
The Finnish mathematician and astronomer Anders Johan Lexell (1740–1784) was once 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 before everything invited by means of Euler from his local city of Abo (Turku) in Finland to Saint Petersburg to help within the mathematical processing of the astronomical information of the drawing close transit of Venus of 1769. many years later he turned 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 specifically from his grand journey to Germany, France and England unearths 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
A significant proportion of the merchants arriving in Åbo in the seventeenth century were of Dutch or German origin. The family of Jonas and Magdalena Lexell settled down almost in the centre of the town close to the market place, the cathedral and the Royal Academy. 3 In Swedish, these military occupations are called, respectively, Stora ofreden (“Greater Wrath”) and Lilla ofreden (“Lesser Wrath”). Both times, the university and its teachers as well as the library were exiled to Stockholm. In 1809, following the “Finnish war” (a part of the Napoleonic wars), Finland was eventually detached from Sweden and the Swedish rule that had prevailed for more than six centuries, to become a formally autonomous Grand Duchy within the Russian Empire, allowed to maintain its old Swedish laws and Lutheran religion.
E. the distance between two points having the same longitude) near the equator , but on its return ten years later the question was already considered more or less settled. 14 1 Setting the Scene Fig. 1 Three of the foremost mathematicians of the mid-1700s: Daniel Bernoulli, Leonhard Euler and Jean d’Alembert. Contemporary engravings (Public domain) time, “the great trio” composed of Daniel Bernoulli, Leonhard Euler and Jean d’Alembert , had come to realise that the differences were mainly a matter of notation, style and approach.
5 The Masters of Mathematics Mathematics, as is so often the case, was at the forefront of the development of natural sciences during the Age of Reason and the Enlightenment. Due to the rigour and the coercive power involved in mathematical demonstrations of natural laws, the mathematical method was generally considered to be an ideal model for all sciences. Mathematical innovations were a prerequisite to the establishment of a solid theoretical basis and structure to a growing number of findings in the empirical sciences, especially physics and astronomy.
A Comet of the Enlightenment: Anders Johan Lexell's Life and Discoveries by Johan C.-E. Stén