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

List of years in science (table)
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Astronomy

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Biology

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Chemistry

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Geology

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Mathematics

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Paleontology

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Physics

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Physiology and medicine

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Technology

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Events

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Awards

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Births

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Deaths

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References

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  1. ^ Buchwald, Greg; Dimario, Michael; Wild, Walter (2000). "Pluto is Discovered Back in Time". Amateur–Professional Partnerships in Astronomy. 220. San Francisco: 335. Bibcode:2000ASPC..220..355B. ISBN 978-1-58381-052-1.
  2. ^ Johannsen, W. (1909). Elemente der exakten Erblichkeitslehre [Elements of the exact theory of heredity] (in German). Jena: G. Fischer. doi:10.5962/bhl.title.94247.
  3. ^ Paul, J. R. (1971). A History of Poliomyelitis. Yale studies in the history of science and medicine. New Haven: Yale University Press. ISBN 978-0-300-01324-5.
  4. ^ "New Chemical Substance" (PDF). The New York Times. 1909-02-06.
  5. ^ "Original Patent for Synthesis of Ammonia". European Patent Office. Retrieved 12 April 2011.
  6. ^ 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.
  7. ^ Sorensen, S. P. L. (1909). "Enzymstudien. II, Über die Messung und die Bedeutung der Wasserstoffionenkonzentration bei enzymatischen Prozessen". Biochemische Zeitschrift. 21: 131–304.
  8. ^ "The Magnetic South Pole". Woods Hole Oceanographic Institution, Magnetics Group, Ocean Bottom Magnetology Laboratory. Archived from the original on 2016-04-21. Retrieved 2011-02-25.
  9. ^ Crilly, Tony (2007). 50 Mathematical Ideas you really need to know. London: Quercus. p. 97. ISBN 978-1-84724-008-8.
  10. ^ Douglass, G. E. (2009). Speak to the Earth and It Will Teach You: The Life and Times of Earl Douglass, 1862–1931. Charleston, South Carolina: BookSurge.
  11. ^ Ehrenfest, Paul (1909). "Gleichförmige Rotation starrer Körper und Relativitätstheorie"  [Uniform Rotation of Rigid Bodies and the Theory of Relativity]. Physikalische Zeitschrift. 10: 918.
  12. ^ Cooke, A. M. (1972). A history of the Royal College of Physicians of London. Vol. 3. Clarendon Press for the Royal College of Physicians. p. 976.
  13. ^ Witz, Anne (2016). Professions and Patriarchy. London: Routledge. ISBN 9781138135796. OCLC 938993033.
  14. ^ Brodmann, K. (1909), Vergleichende Lokalisationslehre der Großhirnrinde in ihren Prinzipien dargestellt auf Grund des Zellenbaues.
  15. ^ Chagas, C. (1909). "Neue Trypanosomen". Vorläufige Mitteilung Archiv für Schiffs-und Tropenhygiene. 13: 120–2.
  16. ^ 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.
  17. ^ 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.
  18. ^ 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. doi:10.1590/s0104-59702009000500002. PMID 20027916.
  19. ^ Lombard, É. (1911). "Le signe de l'élévation de la voix". Annales des Maladies de l'Oreille et du Larynx. XXXVII (2): 101–9.
  20. ^ Lane, H.; Tranel, B. (1971). "The Lombard sign and the role of hearing in speech". Journal of Speech and Hearing Research. 14 (4): 677–709. doi:10.1044/jshr.1404.677.
  21. ^ 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 2022-03-04. Retrieved 2012-02-16. (subscription or participating institution membership required)
  22. ^ "First Broadcast by Ham Radio Operator". The Story of Information. 2013-03-18. Retrieved 2019-10-17.
  23. ^ F. E. Shailor (1910-02-22) "Electric heater" U.S. patent 950,058.
  24. ^ Norcross, Eric (2006). "1900–1920". The Cyber Toaster Museum. The Toaster Museum Foundation. Archived from the original on 2008-08-15. Retrieved 2022-11-20 – via Wayback Machine.
  25. ^ "Rescue at Sea". The American Experience. PBS. Archived from the original on 2012-11-09. Retrieved 2012-03-22.
  26. ^ Flayhart, William H. (2005). Disaster at Sea. W. W. Norton & Company. pp. 206–210.
  27. ^ Dickinson, H. W. (1938). A Short History of the Steam Engine. Cambridge University Press.
  28. ^ "About us". Science Museum. Retrieved 2020-05-06.