This article is about the Danish physicist Martin Knudsen. For the Norwegian footballer, see Martin Knudsen (footballer) . Martin Knudsen (born January 4, 1978 in Bergen) is a loyal footballer from Stavanger.
Martin Hans Christian Knudsen (born February 15, 1871 in Hasmark, died May 27, 1949 in Copenhagen) was a Danish physicist who taught and conducted research at the Technical University of Denmark
He is primarily known for his study of molecular gas flow and the development of the Knudsen cell, which is a primary component of molecular beam epitaxy systems. Events 590 - Khosrau II is crowned as king of Persia 1637 - Ferdinand III becomes Holy Roman Emperor Year 1871 ( MDCCCLXXI) was a Common year starting on Sunday (link will display the full calendar of the Gregorian calendar (or a Common Events 927 - Simeon the Great, Tsar of Bulgaria, dies 1120 - Richard III of Capua is anointed Year 1949 ( MCMXLIX) was a Common year starting on Saturday (link will display the full calendar of the Gregorian calendar. The Kingdom of Denmark ( ˈd̥ænmɑɡ̊ (archaic ˈd̥anmɑːɡ̊ commonly known as Denmark, is a country in the Scandinavian region of northern Europe The Technical University of Denmark ( Danish: Danmarks Tekniske Universitet, DTU was founded in 1829 as the 'College of Advanced Technology' (Danish Den In crystal growth Knudsen Cells are often used as sources evaporators for relatively low partial pressure elementary sources e Molecular beam Epitaxy (MBE, is one of several methods of depositing Single crystals It was invented in the late 1960s at Bell Telephone Laboratories
Knudsen received the University's gold medal in 1895 and earned his master's degree in physics the following year. He became lecturer in physics at the University in 1901 and professor in 1912, when C. Christiansen (1843-1917) retired. He held this post until his own retirement in 1941.
Knudsen was renowned for his work on kinetic-molecular theory and low-pressure phenomena in gases. Kinetic theory (or kinetic theory of gases) attempts to explain Macroscopic properties of Gases such as pressure temperature or volume by considering His name is associated with the Knudsen flow, Knudsen number, and Knudsen gases. The Knudsen number ( Kn) is a Dimensionless number defined as the Ratio of the molecular Mean free path length to a representative physical length A Knudsen gas is a model for gases where particle collisions are ignored as opposed to the Lorenz gas where collisions are considered Also there is the Knudsen Equation, and two instruments, the Knudsen absolute manometer and Knudsen gauge. His book, The Kinetic Theory of Gases (London, 1934), contains the main results of his research.
Knudsen was also very active in physical oceanography, developing methods of defining properties of seawater. Oceanography (from the greek words Ωκεανός meaning Ocean and γράφω meaning to write also called oceanology or He was editor of Hydrological Tables (Copenhagen-London, 1901).
He was awarded the Alexander Agassiz Medal of the U. The Alexander Agassiz Medal is awarded by the US National Academy of Sciences for an original contribution in the science of Oceanography. S. National Academy of Sciences in 1935. The National Academy of Sciences (NAS is a corporation in the United States whose members serve Pro bono as "advisers to the nation on science
References
- Matematiken i Danmark (Mathematics in Denmark) by Niels Nielsen, Gyldendalske Boghandel, Nordisk Forlag, København. Vol. I: 1801-1908, published 1910; Vol. II: 1528-1800, published 1912. (In Danish). Note: This important work is a compilation of Danish mathematical writings. In addition to mathematicians, the short biographical notes include many physicists, astronomers, and early natural philosophers, including medical practitioners.
- Kemien i Danmark (Chemistry in Denmark) by Stig E. Veibel. Vol. I: Kemiens historie i Danmark (The History of Chemistry in Denmark), 1939. Vol. II: Dansk Kemisk Bibliografi, 1800-1935 (Danish Chemistry Bibliography), 1943. Vol III: Danske Kemikere (Danish Chemists), edited by Bodil Jerslev, 1968 (Three of six chapters by Stig Veibel). All published by Nyt Nordisk Forlag, Copenhagen. (In Danish). Note: Vol. II is a compilation of Danish publications in chemistry and includes works by physicists, geologists, biologists, and physicians, along with biographical information.
- Dictionary of Scientific Biography, Charles Coulston Gillispie, editor, Scribner's & Sons, New York, 1980 (16 Volumes). Supplement of 1990 (Volumes 17 and 18).
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