Joseph Louis Gay-Lussac

Joseph Louis Gay-Lussac was a French chemist and physicist. He is known mostly for his discovery that water is made of two parts hydrogen and one part oxygen by volume, 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.

6 December 1778

Born on the same birth day (6 December): Doug Marlette • Helen Greiner • Lawrence Cannon • Maria de Dominici • Marie Adélaïde of Savoy • Niccolò Zucchi • Richard Hanson (Australian politician) • Sylvia Townsend Warner • Syndric Steptoe • Tim Cahill • Tony Woodcock (footballer) • Yekaterina Budanova

Born in the same month (December 1778): Anders Sandøe Ørsted • Humphry Davy • John Ordronaux (privateer) • Marie-Thérèse, Duchess of Angoulême