January 12, 1785 (of Jiachen years twelfth lunar month, the first two days), French chemist, physicist Dulong was born. 1

1785, French chemist, physicist Dulong was born. Dulong chloride of nitrogen found in the age of 26, two years after the potent nitrogen trichloride. At age 34, Dulong and Perot behalf found most of the solid single mass specific heat capacity multiplied by the atomic weight are almost all equal, this famous Dulong - Perot behalf of the law of the chemical history of the development of once played a very important role. (TodayinHistory.cn)