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 used to be at first invited through 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 standard member of the Academy. this can be the first-ever full-length biography dedicated to Lexell and his prolific medical output. His wealthy correspondence in particular from his grand travel 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.
Read or Download A Comet of the Enlightenment: Anders Johan Lexell's Life and Discoveries PDF
Similar geometry books
Designed for advanced undergraduate arithmetic or physics classes, this volume focuses on "practical geometry," emphasizing issues and methods of maximal use in all parts of arithmetic. matters comprise algebraic and combinatoric preliminaries, isometries and similarities, an advent to crystallography, fields and vector areas, affine areas, and projective areas.
This booklet offers a scientific account of conformal geometry of n-manifolds, in addition to its Riemannian opposite numbers. A unifying subject matter is their discrete holonomy teams. particularly, hyperbolic manifolds, in measurement three and better, are addressed. The therapy covers additionally appropriate topology, algebra (including combinatorial crew concept and kinds of team representations), mathematics matters, and dynamics.
This booklet collects the papers of the convention held in Berlin, Germany, 27-29 August 2012, on 'Space, Geometry and the mind's eye from Antiquity to the trendy Age'. The convention used to be a joint attempt via the Max Planck Institute for the background of technological know-how (Berlin) and the Centro die Ricerca Matematica Ennio De Giorgi (Pisa).
- Gems of Geometry
- Applications of Algebraic Geometry to Coding Theory, Physics and Computation
- Geometry and quantum field theory
- Worlds Out of Nothing: A Course in the History of Geometry in the 19th Century (Springer Undergraduate Mathematics Series)
- The geometric viewpoint: a survey of geometries
Additional resources for A Comet of the Enlightenment: Anders Johan Lexell's Life and Discoveries
Despite the impressive title, the position was not much valued: the Adjuncts were not entitled to lecture, and their salaries were insignificant. In the long run, such a position could not satisfy a talent like Lexell. Thus, when the position of lecturer (professor) of mathematics for the marine cadets was declared vacant at the Naval School (Kongliga Amiralitets Cadett Corpsen) in Karlskrona, Sweden, the Consistory of the Academy of Åbo issued a strong recommendation for Lexell on 15 February 1766 .
2 Map of the church quarter in Åbo (Turku) showing the cathedral and the house of Lexell (site Nı 37). The Royal Academy (university) is situated in the houses on the southern part of the wall surrounding the Cathedral (C, D, E). The Library (K) and the Cathedral school (I) are on the north side. These buildings were destroyed in the conflagration in 1827. Site Nı 48 is the Botanical Garden by the river Aura, the academic bookstore was situated on the bridge; nowadays, the bridge crosses the river closer to the Cathedral.
A fair assumption is that he at least made the acquaintance of the Uppsala mathematicians and astronomers Fredrik Mallet (1728–1797), Daniel Melander (1726–1810; after ennoblement in 1778 Melanderhjelm) , Mårten Strömer (1707–1770) and Samuel Duraeus. Whether he also met Linnaeus or Wargentin during this visit is uncertain. Be that as it may, 20 As a young man, Captain Jonas Meldercreutz (1715–1785), had accompanied Maupertuis’ expedition to Torne River Valley in 1736. Besides being a Professor of Mathematics in Uppsala, he was a farmer and estate-owner, who spent more and more time at his mine works until he resigned from his Chair in 1772.