Siméon-Denis Poisson was 25 years old when he appointed Professor of Mathematics at the École Polytechnique in 1806. Elected to Paris Académie des Sciences six later, soon became one its most influential members. The origin and later developments many concepts mathematics physics that bear his name make interesting stories, a few which we shall attempt sketch this paper.

conclusions according to the results of this study, this increase could be due to higher fuel consumption, usage of gasoline in vehicles, oil industry, and steel and heavy industries in ahwaz. the risk of mortality and morbidity were detected at the current concentrations of air pollutants. results according to the findings, the concentration of sulfur dioxide in ahvaz had an annual average of ...