Joseph Louis Gay-Lussac (also Louis Joseph Gay-Lussac, 6 December 1778 – 9 May 1850) was a French chemist and physicist. He's known mostly for two laws related to gases, and for his work on alcohol-water mixtures, which led to the degrees Gay-Lussac used to measure alcoholic beverages in many countries. Biography Gay-Lussac was born at Saint-Léonard-de-Noblat in the department of Haute-Vienne. He received his early education at home, and in 1794 was sent to Paris to prepare for the… (More on Gay-lussac)