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Joseph Louis Gay-Lussac genius

Joseph Louis Gay-Lussac (1778-1850)

Joseph Louis Gay-Lussac Signature

Joseph Louis Gay-Lussac  (1778-1850)
Joseph Louis Gay-Lussac Signature

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Facts
Birth date
06.12.1778
Death Date
09.05.1850
Age of Death
72
Birth Place
Saint-Léonard-de-Noblat, Kingdom of France
Death Place
Paris, France
Zodiac Sign
Sagittarius
IQ Score
175
Fields of Expertise
Chemistry
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If one were not animated with the desire to discover laws, they would escape the most enlightened attention.

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 with Alexander von Humboldt, 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 present-day department of Haute-Vienne.

The father of Joseph Louis Gay, Anthony Gay, son of a doctor, was a lawyer and prosecutor and worked as a judge in Noblat Bridge. Father of two sons and three daughters, he owned much of the Lussac village and usually added the name of this hamlet of the Haute-Vienne to his name, following a custom of the Ancien Régime. Towards the year 1803, father and son finally adopted the name Gay-Lussac. During the Revolution, on behalf of the Law of Suspects, his father, former king's attorney, was imprisoned in Saint Léonard from 1793 to 1794.

He received his early education at the hands of the Catholic Abbey of Bourdeix, though later in life became an atheist. In the care of the Abbot of Dumonteil he began his education in Paris, finally entering the École Polytechnique in 1798.

Gay-Lussac and Biot ascend in a hot air balloon, 1804. Illustration from the late 19th century.

Three years later, Gay-Lussac transferred to the École des Ponts et Chaussées, and shortly afterward was assigned to C. L. Berthollet as his assistant. In 1802, he was appointed demonstrator to A. F. Fourcroy at the École Polytechnique, wherein 1809 he became the professor of chemistry. From 1808 to 1832, he was the professor of physics at the Sorbonne, a post which he only resigned for the chair of chemistry at the Jardin des Plantes. In 1821, he was elected a foreign member of the Royal Swedish Academy of Sciences. In 1831 he was elected to represent Haute-Vienne in the chamber of deputies, and in 1839 he entered the chamber of peers. He was elected a Foreign Honorary Member of the American Academy of Arts and Sciences in 1832.

Gay-Lussac married Geneviève-Marie-Joseph Rojot in 1809. He had first met her when she worked as a linen draper's shop assistant and was studying a chemistry textbook under the counter. He fathered five children, of whom the eldest Jules became assistant to Justus Liebig in Giessen. Some publications by Jules are mistaken as his father's today since they share the same first initial J. Gay-Lussac.

Gay-Lussac died in Paris, and his grave is there at Père Lachaise Cemetery. His name is one of the 72 names inscribed on the Eiffel Tower.

Achievements

  • 1802 – Gay-Lussac first formulated the law, Gay-Lussac's Law, stating that if the mass and volume of a gas are held constant then gas pressure increases linearly as the temperature rises. His work was preceded by that of Guillaume Amontons, who established the rough relation without the use of accurate thermometers. The law is sometimes written as p = k T, where k is a constant dependent on the mass and volume of the gas and T is temperature on an absolute scale in terms of the ideal gas law, k = n·R/V.
  • 1804 – He and Jean-Baptiste Biot made a hot-air balloon ascent to a height of 7,016 metres 23,018 ft in an early investigation of the Earth's atmosphere. He wanted to collect samples of the air at different heights to record differences in temperature and moisture.
  • 1805 – Together with his friend and scientific collaborator Alexander von Humboldt, he discovered that the composition of the atmosphere does not change with decreasing pressure increasing altitude. They also discovered that water is formed by two parts of hydrogen and one part of oxygen by volume.
  • 1808 – He was the co-discoverer of boron.
  • 1810 – In collaboration with Louis Thenard, he developed a method for quantitative elemental analysis by measuring the CO2 and O2 evolved by reaction with potassium chlorate. He also summarised the equation of alcoholic fermentation.
  • 1811 – He recognized iodine as a new element, described its properties, and suggested the name iode.
  • 1815 – He synthesized cyanogen, determined its empirical formula and named it.
  • 1824 – He developed an improved version of the burette that included a side arm, and coined the terms "pipette" and "burette" in an 1824 paper about the standardization of indigo solutions.

Honors

  • In Paris, a street and a hotel near the Sorbonne are named after him as are a square and a street in his birthplace, Saint-Léonard-de-Noblat.
  • In Australia, the "Gay-Lussac Room" at AB Mauri STC, Sydney was named after him in honour of his work with yeast fermentation.

Academic lineage

Publications

  • Chemistry courses of the École Polytechnique, Vol.1&2
  • Lessons of Physics, Faculty of Sciences in Paris, November 6, 1827, March 18, 1828

More facts

Gender: Male
Best Known For: Gay-Lussac's law
Fulfilled his Potential: Yes
Citizen Of: France
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