Antoine Deparcieux (28 October 17032 September 1768) was a
French
French (french: français(e), link=no) may refer to:
* Something of, from, or related to France
** French language, which originated in France, and its various dialects and accents
** French people, a nation and ethnic group identified with Franc ...
Portes Portes may refer to:
Places France
* Antheuil-Portes, in the Oise ''department''
* Les Portes-en-Ré, in the Charente-Maritime ''département''
*Portes-en-Valdaine, in the Drôme ''département''
*Portes, Eure, in the Eure ''département''
*Por ...
, department of
Gard
Gard () is a department in Southern France, located in the region of Occitanie. It had a population of 748,437 as of 2019;Saint Florent for 10 years while working on his family farm. In 1725, his desire for learning took him to Lyon, where he studied at a
school for five years. Then, in 1730, he went to Paris to increase his knowledge of
mathematics
Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes. These topics are represented in modern mathematics ...
sundial
A sundial is a horological device that tells the time of day (referred to as civil time in modern usage) when direct sunlight shines by the apparent position of the Sun in the sky. In the narrowest sense of the word, it consists of a flat ...
s.
In 1746, he became a member of the Academy of Sciences, and in about 1765 was named ''Censeur Royal''. He was also librarian at the University of Strasbourg, and member of the Academy of Sciences of Paris, Montpellier, Lyon, Amiens, Metz, Berlin, and Stockholm.
Accomplishments
Among his constructions were:
* A machine to raise water at Crécy castle
* A pump for castle of Arnouville
* A press for the production of tobacco
He also published many works, including:
* ''Traité de trigonométrie rectiligne et sphérique'' (1738), approved by the Academy of Sciences
* ''Nouveau traité de trigonométrie, (avec table des sinus et logarithmes)'' (1740)
* ''Traité complet de Gnomonique'' (1741)
* ''Essai sur les probabilités de la durée de la vie humaine'' (1746) ("Essay on the probabilities of the human lifespan"), which is the work for which he is best known
* ''Mémoire sur la courbure des ondes'' (1747)
In 1758, Deparcieux was elected a foreign member of the
Royal Swedish Academy of Sciences
The Royal Swedish Academy of Sciences ( sv, Kungliga Vetenskapsakademien) is one of the Swedish Royal Academies, royal academies of Sweden. Founded on 2 June 1739, it is an independent, non-governmental scientific organization that takes special ...
.
See also
*
Life annuity
A life annuity is an annuity, or series of payments at fixed intervals, paid while the purchaser (or annuitant) is alive. The majority of life annuities are insurance products sold or issued by life insurance companies however substantial case l ...