Daniel Bernoulli
See also: Bernoulli
Daniel Bernoulli (Groningue February 9th 1700 - Basle March 17th 1782) is a doctor, physicist and mathematician Suisse. It is the son of Jean Bernoulli and the nephew of Jacques Bernoulli.
He cultivated at the same time mathematical sciences and the natural science, taught mathematics, the anatomy, botany and physics. Friend of Leonhard Euler, it works with him in several fields of the Mathématiques and the Physique (it shared with him ten times the annual price of the Academy of Science of Paris), that it was made a kind of income of it. The various problems which it tries to solve (theory of the elasticity, mechanism of the Marée S) result it in being interested and to develop mathematical tools such as the differential equations or the series S. It also collaborates with Jean the Round of Alembert in the study of the vibrating cords. It was the first to use a symbol (A.S.) to indicate the function arc sine.
It spends a few years to Saint-Pétersbourg as professor of Mathématiques but the essence of its career proceeds at the university of Basle where it teaches successively the Astronomie, the Médecine and the Philosophie. It was like his father, member of the Academies of Paris, Berlin, London and Saint-Pétersbourg.
It publishes in 1738
- its work Hydrodynamica (Strasbourg, 1738, in-4) in which it exposes the fundamental theorem of the Mécanique fluids which bears its name: the Theorem of Bernoulli.
- and also a test of “Theory to the measure of the risk”, in which the Paradox of Saint-Pétersbourg - born from discussions between him and his/her brother Nicolas - regarded today by certain economists of finance as founder of the bases of the economic theory and financial of the Aversion to the risk, the Allowance for risk and the Utility, although not treating directly these questions
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