Leopold Pfaundler

Leopold Pfaundler von Hadermur (14 February 1839 – 6 May 1920) was an Austrian physicist and chemist born in Innsbruck. He was the father of pediatrician Meinhard von Pfaundler (1872-1947), and the father-in-law of pediatrician Theodor Escherich (1857-1911).

He studied under chemist Heinrich Hlasiwetz (1825-1875) at Innsbruck, with Justus von Liebig (1803-1873) at the University of Munich, and with Henri Victor Regnault (1810-1878) and Charles Adolphe Wurtz (1817-1884) in Paris. In 1861 he received his doctorate, and in 1867 was appointed professor of physics at the University of Innsbruck. In 1891 he succeeded Ludwig Boltzmann (1844-1906) as professor of physics at the University of Graz. In 1887 he became a full member of the Vienna Academy of Sciences.[1][2]

Pfaundler is remembered today for his kinetic-molecular explanation of gas reactions under the condition of equilibrium.[3] He was the inventor of a number of scientific apparatuses — devices he often utilized in classroom demonstrations. These included a temperature regulator (1863), a Stromkalorimeter (1869), a differential air thermometer (1875), a seismograph (1897) and a distance meter (1915), to name a few.[2] He is also credited with creating a device for optical demonstration of Lissajous figures (1873).[4]

In 1863-64 he performed a survey of the Stubaier Alps with Ludwig Barth zu Barthenau (1839-1890), and in 1864 he was the first person to ascend to the summit of the Hofmannspitze (3112m).[5]

Selected written works
  • Die Physik des täglichen Lebens, gemeinverständlich dargestellt (1906).
  • Die physik des täglichen Lebens mit 467 Abbildungen (1913).
  • Ueber die Wärmekapazität des Wassers und eine Methode den Ort ihres Minimums zu messen (1915).
  • Ueber einen neuen Distanzmesser (1915).
  • Chronik der Familie Pfaundler von 1486 bis 1915 (1915).
  • Die Innsbrucker Studenten-Kompagnie 1859 und 1866 (1917).
  • Das chinesisch-japanische GO-Spiel: eine systematische Darstellung und Anleitung zum Spielen desselben.[6]

He also published Müller-Pouillet's Lehrbuch der Physik und Meteorologie ("Johann Heinrich Jakob Müller–Claude Pouillet's textbook of physics and meteorology"), (9th edition, 1886–98, 3 volumes).[7]

Awards and honors

Pfaundler’s 1867 publication entitled “Beiträge zur chemischen Statik” [“A Contribution to Chemical Statics”] was a major contribution to the kinetic theory of chemical reactions. This publication was honored by a Citation for Chemical Breakthrough Award from the Division of History of Chemistry of the American Chemical Society presented to the University of Innsbruck in 2016.[8][9][10][11]

gollark: I MAY have to go back in time and erase "shingled magnetic recording" from existence.
gollark: They don't seem to have many WD disks in that.
gollark: Hmm. Perhaps seagate somewhat bad then.
gollark: ```ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 2 3 Spin_Up_Time 0x0027 179 171 021 Pre-fail Always - 2033 4 Start_Stop_Count 0x0032 001 001 000 Old_age Always - 168316 5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0 7 Seek_Error_Rate 0x002f 200 200 051 Pre-fail Always - 0 9 Power_On_Hours 0x0032 079 079 000 Old_age Always - 15354 10 Spin_Retry_Count 0x0032 100 100 000 Old_age Always - 0 11 Calibration_Retry_Count 0x0032 100 100 000 Old_age Always - 0 12 Power_Cycle_Count 0x0032 098 098 000 Old_age Always - 2564192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 320193 Load_Cycle_Count 0x0032 088 088 000 Old_age Always - 336830194 Temperature_Celsius 0x0022 126 080 000 Old_age Always - 21196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 0198 Offline_Uncorrectable 0x0030 100 253 000 Old_age Offline - 0199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 2200 Multi_Zone_Error_Rate 0x0008 200 200 000 Old_age Offline - 0240 Head_Flying_Hours 0x0032 088 088 000 Old_age Always - 8931```Wow, this disk is in a great state.
gollark: I don't see why I would want dead ones.

References
  1. Leopold Pfaundler von Hadermur Austria Forum
  2. Pfaundler, Leopold (1839-1920), Chemiker und Physiker at Kipnis de.
  3. A treatise on the principles of chemistry Matthew Moncrieff Pattison Muir - 1884
  4. phsik.uibk Pfaundler's apparatus
  5. Stubaier Alpen alpin: Alpenvereinsführer für Hochalpenwanderer und ... by Walter Klier
  6. "Archived copy". Archived from the original on 2016-03-03. Retrieved 2011-12-15.CS1 maint: archived copy as title (link) Katalog der Deutschen Nationalbibliothek
  7. Worldcat Identities
  8. "2016 Awardees". American Chemical Society, Division of the History of Chemistry. University of Illinois at Urbana-Champaign School of Chemical Sciences. 2016. Retrieved 14 June 2017.
  9. "Citation for Chemical Breakthrough Award" (PDF). American Chemical Society, Division of the History of Chemistry. University of Illinois at Urbana-Champaign School of Chemical Sciences. 2016. Retrieved 14 June 2017.
  10. Jensen, William B.; Kuhlmann, Julia (2012). "LEOPOLD PFAUNDLER AND THE ORIGINS OF THE KINETIC THEORY OF CHEMICAL REACTIONS" (PDF). Bull. Hist. Chem. 37 (1). Retrieved 15 June 2017.
  11. Pfaundler, Leopold (1867). ""Beiträge zur chemischen Statik" ["A Contribution to Chemical Statics"]". Annalen der Physik und Chemie (131): 55–85.
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