William Prout (January 15, 1785 – April 9, 1850) was an English chemist and physician. His life was spent as a practising physician in London, but he also occupied himself with chemical research. He was an active worker in biological chemistry and carried out many analyses of the secretions of living organisms, which he believed were produced by the breakdown of bodily tissues. In 1823, he discovered that stomach juices contain hydrochloric acid, which can be separated from gastric juice by distillation. In 1827, he proposed the classification of substances in food into carbohydrates, fats, and proteins. January 15 is the 15th day of the year in the Gregorian Calendar. ... 1785 was a common year starting on Saturday (see link for calendar). ... April 9 is the 99th day of the year in the Gregorian calendar (100th in leap years). ... 1850 was a common year starting on Tuesday (see link for calendar). ... Royal motto: Dieu et mon droit (French: God and my right) Englands location within the UK Official language English de facto Capital London de facto Largest city London Area - Total Ranked 1st UK 130,395 km² Population - Total (mid-2004) - Density Ranked 1st UK 50. ... A chemist is a scientist who specializes in chemistry. ... A physician is a person who practices medicine. ... The Clock Tower of the Palace of Westminster, which contains Big Ben London is the capital city of the United Kingdom and of England. ... In biology and ecology, an organism (in Greek organon = instrument) is an assembly of organs that influence each other in such a way that they function as a more or less stable whole and have properties of life. ... 1823 was a common year starting on Wednesday (see link for calendar). ... In anatomy, the stomach (in ancient Greek στόμαχος) is an organ in the alimentary canal used to digest food. ... The chemical substance hydrochloric acid is the aqueous (water-based) solution of hydrogen chloride (HCl) gas. ... Strathisla whisky distillery in Keith, Scotland Distillation is a means of separating liquids through differences in their boiling points. ... 1827 was a common year starting on Monday (see link for calendar). ... Carbohydrates (literally hydrates of carbon) are chemical compounds that act as the primary biological means of storing or consuming energy, other forms being fat and protein. ... Look up fat in Wiktionary, the free dictionary Fat is one of the three main classes of food and, at approximately 38 kJ (9 kilocalories) per gram, as compared to sugar with 17 kJ (4 kcal) per gram or ethanol with 29 kJ (7 kcal) per gram, the most concentrated... A representation of the 3D structure of myoglobin, showing coloured alpha helices. ...

He is better remembered, however, for his researches into physical chemistry. In 1815, based on the tables of atomic weights available at the time, he hypothesized that the atomic weight of every element is an integer multiple of that of hydrogen, suggesting that the hydrogen atom is the only truly fundamental particle, and that the atoms of the other elements are made of groupings of various numbers of hydrogen atoms. While Prout's hypothesis was not borne out by later more accurate measurements of the atomic weights, it was a sufficiently fundamental insight into the structure of the atom that in 1920, Ernest Rutherford chose the name of the newly-discovered proton to, among other reasons, give credit to Prout. Physical Chemistry is the combined science of physics, chemistry, thermodynamics, and quantum mechanics which functions to provide molecular-level interpretations of observed macroscopic phenomena. ... The Battle of New Orleans 1815 was a common year starting on Sunday (see link for calendar). ... ... The integers consist of the positive natural numbers (1, 2, 3, …), their negatives (−1, −2, −3, ...) and the number zero. ... General Name, Symbol, Number hydrogen, H, 1 Chemical series nonmetals Group, Period, Block 1, 1, s Appearance colorless Atomic mass 1. ... Properties For alternative meanings see atom (disambiguation). ... A chemical element, often called simply element, is the class of atoms which contain the same number of protons. ... Prouts hypothesis was an early 19th century attempt to explain the existence of the various chemical elements through a hypothesis regarding the internal structure of the atom. ... 1920 is a leap year starting on Thursday (link will take you to calendar) // Events January January 7 - Forces of Russian White admiral Kolchak surrender in Krasnoyarsk. ... Ernest Rutherford, 1st Baron Rutherford of Nelson, OM, FRS (August 30, 1871 - October 19, 1937), called father of nuclear physics, pioneered the orbital theory of the atom notably in his discovery of rutherford scattering off the nucleus with his gold foil experiment. ... Properties In physics, the proton (Greek proton = first) is a subatomic particle with an electric charge of one positive fundamental unit (1. ...

Prout contributed to the improvement of the barometer, and the Royal Society of London adopted his design as a national standard. Schematic drawing of a simple mercury barometer with vertical mercury column and reservoir at base A barometer is an instrument used to measure atmospheric pressure. ... The Royal Society of London is claimed to be the oldest learned society still in existence and was founded in 1660. ...