Hermann Emil Fischer proposes the structure of purine, a key component in many biomolecules, which he synthesizes in 1898; he also begins work on the chemistry of glucose and related sugars.[2]
First known case of artificial insemination by sperm donation: William H. Pancoast, a professor in Philadelphia, takes sperm from his "best looking" student to inseminate an anesthetized woman without her knowledge, not reported for 25 years.[12][13][14]
Thomas Parker builds a practical production electric car in Wolverhampton (England) using his own specially designed high-capacity rechargeable batteries.
^Koch, R. (20 March 1884) "Sechster Bericht der deutschen wissenschaftlichen Commission zur Erforschung der Cholera" (Sixth report of the German scientific commission for research on cholera), Deutsche medizinische Wochenscrift (German Medical Weekly), 10 (12): 191–192. On page 191, he mentions the characteristic comma shape of Vibrio cholerae: "Im letzten Berichte konnte ich bereits gehorsamst mittheilen, dass an den Bacillen des Choleradarms besondere Eigenschaften aufgefunden wurden, durch welche sie mit aller Sicherheit von anderen Bakterien zu unterscheiden sind. Von diesen Merkmalen sind folgende die am meisten charakteristischen: Die Bacillen sind nicht ganz geradlinig, wie die übrigen Bacillen, sondern ein wenig gekrümmt, einem Komma ähnlich." (In the last report, I could already respectfully report that unusual characteristics were discovered in the bacteria of enteric cholera, by which they are to be distinguished with complete certainty from other bacteria. Of these features, the following are the most characteristic: the bacteria are not quite straight, like the rest of the bacilli, but a little bent, similar to a comma.)
^Hardy, A. (August 1999). "Food, hygiene, and the laboratory. A short history of food poisoning in Britain, circa 1850-1950". Social History of Medicine. 12 (2): 293–311. doi:10.1093/shm/12.2.293. PMID11623930.
^At a medical congress in Heidelberg, Germany, September 15. Honegger, H.; Hessler, H. (September 1970). "[Discovery of local anesthesia by Karl Koller. I]". Klinische Monatsblätter für Augenheilkunde (in German). 157 (3). West Germany: 428–38. ISSN0023-2165. PMID4922411.
^"Charles Parsons (1854–1931)". Profiles of Scientists from Irish Universities. Archived from the original on January 10, 2008. Retrieved November 3, 2024 – via Wayback Machine.
^Winter, Lumen; Degner, Glenn (1933). Minute Epics of Flight. New York: Grosset & Dunlap. pp. 49–50.
^Guarnieri, M. (2013). "Who Invented the Transformer?". IEEE Industrial Electronics Magazine. 7 (4): 56–59. doi:10.1109/MIE.2013.2283834.
^Moseley, Brian (August 2007). "Smeaton's Tower". The Encyclopaedia of Plymouth History. Plymouth Data. Archived from the original on March 16, 2011. Retrieved February 13, 2015.