1909 in science

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The year 1909 in science and technology involved some significant events, listed below.

Astronomy[edit]

  • Comet Halley first becomes visible on a photographic plate.

Chemistry[edit]

Earth sciences[edit]

Mathematics[edit]

Medicine[edit]

Paleontology[edit]

Physics[edit]

Technology[edit]

Events[edit]

Awards[edit]

Births[edit]

Deaths[edit]

References[edit]

  1. ^ "New Chemical Substance" (PDF). The New York Times. 1909-02-06. 
  2. ^ "Original Patent for Synthesis of Ammonia". European Patent Office. Retrieved 12 April 2011. 
  3. ^ Bowlby, Chris (2011-04-12). "Fritz Haber: Jewish chemist whose work led to Zyklon B". BBC News. Archived from the original on 12 April 2011. Retrieved 2011-04-12. 
  4. ^ Sorensen, S. P. L. (1909). "Enzymstudien. II, Über die Messung und die Bedeutung der Wasserstoffionenkonzentration bei enzymatischen Prozessen". Biochemische Zeitschrift 21: 131–304. 
  5. ^ "The Magnetic South Pole". Woods Hole Oceanographic Institution, Magnetics Group, Ocean Bottom Magnetology Laboratory. Retrieved 2011-02-25. 
  6. ^ Crilly, Tony (2007). 50 Mathematical Ideas you really need to know. London: Quercus. p. 97. ISBN 978-1-84724-008-8. 
  7. ^ Chagas, C. (1909). "Neue Trypanosomen". Vorläufige Mitteilung Archiv für Schiffs-und Tropenhygiene 13: 120–2. 
  8. ^ Redhead, S. A.; Cushion, M. T.; Frenkel, J. K.; Stringer, J. R. (2006). "Pneumocystis and Trypanosoma cruzi: nomenclature and typifications". Journal of Eukaryotic Microbiology 53 (1): 2–11. doi:10.1111/j.1550-7408.2005.00072.x. PMID 16441572. 
  9. ^ Chagas, C. (1909). "Nova tripanozomiase humana: Estudos sobre a morfolojia e o ciclo evolutivo do Schizotrypanum cruzi n. gen., n. sp., ajente etiolojico de nova entidade morbida do homem [New human trypanosomiasis: Studies about the morphology and life-cycle of Schizotripanum cruzi, etiological agent of a new morbid entity of man]". Memórias do Instituto Oswaldo Cruz 1 (2): 159–218. doi:10.1590/S0074-02761909000200008. ISSN 0074-0276. 
  10. ^ Kropf, S. P.; Sá, Magali Romero (July 2009). "The discovery of Trypanosoma cruzi and Chagas disease (1908–1909): tropical medicine in Brazil". História, ciências, saúde – Manguinhos 16 (Suppl 1): 13–34. PMID 20027916. 
  11. ^ Lectures on the Experimental Psychology of the Thought-Processes. New York: Macmillan, 1909. "empathy, n.". Oxford English Dictionary online version. Oxford University Press. December 2011. Archived from the original on 2012-02-18. Retrieved 2012-02-16.  (subscription or UK public library membership required)
  12. ^ Douglass, G. E. (2009). Speak to the Earth and It Will Teach You: The Life and Times of Earl Douglass, 1862–1931. Charleston, S.C.: BookSurge. 
  13. ^ "Rescue at Sea". The American Experience. PBS. Retrieved 2012-03-22. 
  14. ^ Flayhart, William H. (2005). Disaster at Sea. W. W. Norton & Company. pp. 206–210. 
  15. ^ "About Us – History". Science Museum. Archived from the original on 21 July 2010. Retrieved 2010-07-07.