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词条 Johannes van Laar
释义

  1. Biography

  2. References

  3. External links

Johannes van Laar (10 July 1860 in 's-Gravenhage – 9 December 1938 in Montreux) was a Dutch chemist who is best known for the equations regarding chemical activity (Van Laar equation).

Biography

Van Laar lost his parents early, his mother in 1862 and his father 1873. From that point on his uncle N. A. Rost van Tonningen was responsible for him. He finished school in 1876 and joined the Royal Naval Institute at Willemsoord. After several trips on steam ships and reaching the rank of a sub-lieutenant he asked for discharge when he became of age.

Van Laar started his studies of physics, chemistry and mathematics at the University of Amsterdam in 1891. Johannes van der Waals, and Jacobus Henricus van 't Hoff both were professors at that University in that time.

His education deprived him from obtaining a Ph.D. and therefore a career at a Dutch University was nearly impossible. After being a teacher at a middle school he became unsalaried lecturer at the University of Amsterdam 1898 and assistant of Bakhuis Roozeboom in 1902. Van der Waals opposed several of the promotions of van Laar, for example becoming a paid lecturer in 1902 and after the death of Roozeboom the attempt to get lecturer for mathematical chemistry in 1907. Van Laar was appointed lecturer of mathematics in 1907 but was rejected becoming professor in 1910. This rejection lead to a mental breakdown and had to resign his position. He went to Tavelsur-Clarens in Switzerland until his death in 1938.

In 1930 he became a member of the Royal Netherlands Academy of Arts and Sciences.[1]

References

1. ^{{cite web|author= |url=http://www.dwc.knaw.nl/biografie/pmknaw/?pagetype=authorDetail&aId=PE00001450 |title=Johannes Jacobus van Laar (1860 - 1938) |language=Dutch |publisher=Royal Netherlands Academy of Arts and Sciences |date= |accessdate=13 July 2015}}
  • {{cite web |url = http://repository.tudelft.nl/view/ir/uuid%3Ac1977ab2-b8c3-4c12-ac9c-daa985ee624f/ | title = Dissertation: J. J. van Laar (1860–1938) :--a mathematical chemist | last = Van Emmerik | first = E. P.| publisher = Technical University Delft | date = 1991-03-21 | accessdate = 2011-03-06}}
  • {{cite web |url = http://www.biografischportaal.nl/persoon/02527674 | title = Johannes Jacobus van Laar | publisher = Biografisch Portaal van Nederland| accessdate = 2011-03-06}}
  • {{cite web |url = http://www.inghist.nl/Onderzoek/Projecten/BWN/lemmata/bwn2/laar | title = LAAR, Johannes Jacobus van (1860–1938) | publisher = Biografisch Woordenboek van Nederland| accessdate = 2011-03-06}}
  • {{cite web |url = http://www.dwc.knaw.nl/english/academy/past-members/?pagetype=authorDetail&aId=PE00001450 | title = Past Members of the Koninklijke Nederlandse Academie van Wetenshappen: J.J. van Laar (1860–1938) | accessdate = 2011-03-06}}
  • {{cite web |url = http://www.math.ru.nl/~ahml/wkl_thermo.pdf | title = Van der Waals, Korteweg, van Laar: a Maple Excursion into the Thermodynamics of Binary | first = A. H. M. | last = Levelt| accessdate = 2011-03-06}}
  • {{cite journal |last1 = Snelders |first1 = H. A. M. |title = The Dutch Physical Chemist J. J. van Laar (1860?1938) Versus J. H. van 't Hoff's ?Osmotic School? |journal = Centaurus |volume = 29 |issue = 1 |pages = 53–71 |year = 1986 |doi = 10.1111/j.1600-0498.1986.tb00881.x|bibcode = 1986Cent...29...53S }}
  • {{cite journal |last1 = Wisniak |first1 = Jaime |title = Johannes Jacobus van Laar Unappreciated Scientist |journal = The Chemical Educator |volume = 5 |issue = 6 |pages = 335–339 |year = 2000 |doi = 10.1007/s00897000429a}}
  • {{cite journal |last1 = Van Klooster |first1 = H. S. |title = J. J. van Laar: Pioneer in chemical thermodynamics |journal = Journal of Chemical Education |volume = 39 |issue = 2 |pages = 74 |year = 1962 |doi = 10.1021/ed039p74|bibcode = 1962JChEd..39...74V }}

External links

  • http://www.inghist.nl/Onderzoek/Projecten/BWN/lemmata/bwn2/laar
{{Authority control}}{{DEFAULTSORT:Laar, Johannes van}}

7 : 1860 births|1938 deaths|Dutch physical chemists|Members of the Royal Netherlands Academy of Arts and Sciences|People from The Hague|University of Amsterdam alumni|University of Amsterdam faculty

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