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Luigi Galvani

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Italian scientist (1737–1798)
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"Galvani" redirects here. For other uses, seeGalvani (disambiguation).
Luigi Galvani
Portrait of Galvani at thePalazzo Poggi
Born(1737-09-09)9 September 1737
Died4 December 1798(1798-12-04) (aged 61)
Known forGalvanism
SpouseLucia Galeazzi Galvani
RelativesGiovanni Aldini (nephew)
Scientific career
FieldsPhysics
InstitutionsUniversity of Bologna

Luigi Galvani (/ɡælˈvɑːni/gal-VAH-nee,US also/ɡɑːl-/gahl-,[1][2][3][4]Italian:[luˈiːdʒiɡalˈvaːni];Latin:Aloysius Galvanus; 9 September 1737 – 4 December 1798) was an Italianphysician,physicist,biologist andphilosopher who studiedanimal electricity. In 1780, using a frog, he discovered that the muscles of dead frogs' legs twitched when struck by an electrical spark.[5]: 67–71  This was an early study ofbioelectricity, following experiments byJohn Walsh andHugh Williamson.

Early life and career

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Luigi Galvani was born togoldsmith Domenico Galvani and Barbara Caterina Foschi, inBologna, then part of thePapal States.[6] A portion of his childhood home still stands in the Giardino Salvatore Pincherle.[7][8]

In 1759, Galvani graduated with a degree in medicine and philosophy and began to practice medicine at nearby hospitals.[6] He published his first work, a paper on the anatomy and physiology of bones, in 1762, when he was 25 years old. Galvani presented the work at theArchiginnasio di Bologna, which allowed him to start lecturing at theAcademy of Sciences of the Institue of Bologna (now part of theUniversity of Bologna) where he taught anatomy for most of his career.[6]

In 1766, Galvani was appointed curator of the anatomical museum by the senate of Bologna. This position "required him to give lectures and demonstrations of anatomical operations before surgeons, painters and sculptors."[6] In 1782, he was appointed Professor ofObstetric Arts, which he remained for the next 16 years.

Animal electricity

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Galvani then began taking an interest in the field of "medical electricity". This field emerged in the middle of the 18th century, following electrical researches and the discovery of the effects of electricity on the human body by scientists including Bertrand Bajon andRamón María Termeyer in the 1760s,[9] and byJohn Walsh[10][11] andHugh Williamson in the 1770s.[12][13] The publication in 1791 of Galvani’s main work (De Viribus Electricitatis in Motu Musculari Commentarius), summarizing and discussing more than 10 years of research on the effect of electricity on animal preparations, had an enormous impact on thescientific community and sparked heated controversy in Europe.[14]

  • Experiment De viribus electricitatis in motu musculari.
    ExperimentDe viribus electricitatis in motu musculari.
  • Late 1780s diagram of Galvani's experiment on frog legs.
    Late 1780s diagram of Galvani's experiment on frog legs.
  • Electrodes touch a frog, and the legs twitch into the upward position.[15] (see also: Frog galvanoscope)
    Electrodes touch a frog, and the legs twitch into the upward position.[15] (see also:Frog galvanoscope)

Galvani vs. Volta

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Further information:Galvanism

Alessandro Volta, a professor of experimental physics in theUniversity of Pavia, was among the first scientists who repeated and checked Galvani’s experiments. At first, he embraced animal electricity. However, he started to doubt that the conductions were caused by specific electricity intrinsic to the animal's legs or other body parts. Volta believed that the contractions depended on the metal cable Galvani used to connect the nerves and muscles in his experiments.[13]

Every cell has acell potential; biological electricity has the same chemical underpinnings as the current betweenelectrochemical cells, and thus can be duplicated outside the body. Volta's intuition was correct. Volta, essentially, objected to Galvani’s conclusions about "animal electric fluid", but the two scientists disagreed respectfully and Volta coined the term "Galvanism" for a direct current of electricity produced by chemical action.[16]

Since Galvani was reluctant to intervene in the controversy with Volta, he trusted his nephew,Giovanni Aldini, to act as the main defender of the theory of animal electricity.[13]

Personal life

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1862 painting of Luigi Galvani and Lucia Galeazzi Galvani.

Galvani married scientistLucia Galeazzi, daughter of his mentorDomenico Gusmano Galeazzi, in 1762.[6] After her death in 1790, Galvani moved in with his brother, who was living in their childhood home in Bologna.

Galvani was described by contemporaries as an "honest, mild, modest man, polite, charitable to the unfortunate and always a noble and generous friend."[6] He was noted for his religious devotion and saw his medical work as being a spiritual mission. French dermatologistJean-Louis-Marc Alibert said of Galvani that he never ended his lessons “without exhorting his hearers and leading them back to the idea of that eternal Providence, which develops, conserves, and circulates life among so many diverse beings.”[17]

Death and legacy

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Galvani actively investigated animal electricity until the end of his life. In April 1798, theCisalpine Republic, a French client state founded after the French occupation of Northern Italy, required every university professor to swear loyalty to the new authority. Galvani disagreed with the oath and refused to take it; as a result, he was stripped of his offices and sent into poverty. Aldini led a movement to restore him to his university position — it was successful, but his restoration was only announced shortly before his death. Galvani died in his brother’s house on 4 December 1798.[13]

Luigi Galvani'smonument in Piazza Luigi Galvani (Luigi Galvani Square), inBologna.

Galvani's report of his investigations were mentioned specifically byMary Shelley as part of the summer reading list leading up to anad hocghost story contest on a rainy day in Switzerland — and the resultant novelFrankenstein — and its reanimated construct. InFrankenstein, Victor studies the principles of galvanism but it is not mentioned in reference to the creation of the Monster.

Galvani's name also survives in everyday language as the verb 'galvanize' as well as in more specialized terms:Galvani potential,galvanic anode,galvanic bath,galvanic cell,galvanic corrosion,galvanic couple,galvanic current,galvanic isolation,galvanic series,galvanic skin response,galvanism,galvanization,hot-dip galvanization,galvanometer, Galvalume, and psycho-galvanic reflex.

Works

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See also

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References

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  1. ^"Galvani".The American Heritage Dictionary of the English Language (5th ed.). HarperCollins. Retrieved31 May 2019.
  2. ^"Galvani".Collins English Dictionary.HarperCollins. Retrieved31 May 2019.
  3. ^"Galvani, Luigi" (US) and"Galvani, Luigi".Lexico UK English Dictionary.Oxford University Press. Archived fromthe original on 2020-10-26.
  4. ^"Galvani".Merriam-Webster.com Dictionary. Merriam-Webster. Retrieved31 May 2019.
  5. ^Whittaker, E. T. (1951),A History of the Theories of Aether and Electricity. Vol 1, Nelson, London
  6. ^abcdefGalvani, Luigi; Pupilli, Giulio C. (1953).Commentary On The Effect Of Electricity On Muscular Motion. Universal Digital Library. Elizabeth Licht. pp. ix–xx.
  7. ^Vietto, Sonja (2022-11-24)."Bologna, nuova vita al giardino Pincherle".Bologna24ore.it (in Italian). Retrieved2025-09-04.
  8. ^"La casa di Galvani diventa succursale di una banca".bibliotecasalaborsa.it (in Italian). 2019-11-07. Retrieved2025-09-04.
  9. ^de Asúa, Miguel (9 April 2008). "The Experiments of Ramón M. Termeyer SJ on the Electric Eel in the River Plate Region (c. 1760) and other Early Accounts of Electrophorus electricus".Journal of the History of the Neurosciences.17 (2):160–174.doi:10.1080/09647040601070325.PMID 18421634.
  10. ^Edwards, Paul (10 November 2021)."A Correction to the Record of Early Electrophysiology Research on the 250th Anniversary of a Historic Expedition to Île de Ré". HAL open-access archive. hal-03423498. Retrieved6 May 2022.
  11. ^Alexander, Mauro (1969). "The role of the voltaic pile in the Galvani-Volta controversy concerning animal vs. metallic electricity".Journal of the History of Medicine and Allied Sciences.XXIV (2):140–150.doi:10.1093/jhmas/xxiv.2.140.PMID 4895861.
  12. ^VanderVeer, Joseph B. (6 July 2011). "Hugh Williamson: Physician, Patriot, and Founding Father".Journal of the American Medical Association.306 (1).doi:10.1001/jama.2011.933.
  13. ^abcdBresadola, Marco (15 July 1998). "Medicine and science in the life of Luigi Galvani".Brain Research Bulletin.46 (5):367–380.doi:10.1016/s0361-9230(98)00023-9.PMID 9739000.S2CID 13035403.
  14. ^Piccolino 1998, p. 381.
  15. ^David Ames Wells,The science of common things: a familiar explanation of the first, 323 pages ( page 290)
  16. ^Luigi Galvani – IEEE Global History Network.
  17. ^"CATHOLIC ENCYCLOPEDIA: Luigi Galvani". Retrieved1 September 2014.

Sources

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External links

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