This law helped in a more complete understanding of a similar law announced by John Dalton , called the law of multiple proportions, which governed the combining weights of an element that formed more than one compound with another element. In order to take readings at even greater heights, Gay-Lussac made another ascent, this time alone, and was able to achieve an elevation of seven thousand meters, a record for that time. In , he published a document that described the physical properties of the acid, and later on in revealed more information about its chemical composition. Gay-Lussac's results were expressed as the expansion of gases for a temperature difference equal to that of the freezing and boiling points of water. He collaborated with the eminent mathematician Pierre-Simon Laplace to conduct experiments on capillarity in order to study short-range forces. Their memoir, read at a meeting of the Institute on 27 February , contains the following remark, the wording of which should be carefully noted:. He became a member of the government gunpowder commission in and was appointed as director of the assay department at the Paris Mint in where he came up with an accurate method for the assaying of silver.
Joseph-Louis Gay-Lussac | French scientist | FILMEONLINE.CLUB
Joseph Louis Gay-Lussac Facts
At the Polytechnique, he received a rigorous introduction to advanced mathematics, physics and chemistry. To answer these a lots of other questions, Gay-Lussac took a record-breaking flight in a hydrogen filled balloon to the incredible height of 23, feet in But his last great piece of pure research was on prussic acid. In order to take readings at even greater heights, Gay-Lussac made another ascent, this time alone, and was able to achieve an elevation of seven thousand meters, a record for that time. Gay-Lussac presented a much more complete study of iodine in a long memoir presented to the National Institute on August 1, , and subsequently published in the Annales de chimie.
Childhood and youth
He was also an inventor and is credited with the development of portable barometer, steam injector pump, and air thermometer. He became a member of the government gunpowder commission in and was appointed as director of the assay department at the Paris Mint in where he came up with an accurate method for the assaying of silver. Interesting stories about famous people, biographies, humorous stories, photos and videos. In the year of revolutions Gay-Lussac resigned from his various appointments in Paris, and he retired to a country house in the neighbourhood of his youth that was stocked with his library and a private laboratory. Joseph had four siblings.
This is a beta version of NNDB. Gay-Lussac, however, wished to find the relationship between heat absorbed and heat evolved in the two flasks, and from his experiments he drew the valuable conclusion that these were equal within the limits of experimental error. They too decided to perform the same task, but they had no battery at their disposal as Davy had, so they had to form another way to chemically prepare the two elements. After carrying out a large number of experiments with an excess of first one gas and then the other, they calculated—making allowance for a slight impurity in the test oxygen—that parts by volume of oxygen combined with The magnetic observations, though imperfect, led him to the conclusion that the magnetic effect at all attainable elevations above the earth's surface remains constant; and on analyzing the samples of air he could find no difference of composition at different heights. In December Davy succeeded in decomposing boric acid. His thermal decomposition of sulfuric acid in a porcelain tube showed the volumetric composition of sulfur trioxide to be parts sulfur dioxide and