• Source: Jacques Inaudi

Giacomo Inaudi (13 October 1867 – 10 November 1950), also known as Jacques Inaudi in France, was an Italian calculating prodigy.
He was born in Roccabruna, Piedmont, Italy. As a child he was a shepherd but showed aptitude for mental calculation. Inaudi's abilities attracted the interest of showmen and he toured around the world.
French scientists like Jean-Martin Charcot investigated his abilities, French astronomer Camille Flammarion praised him in strong terms, and Alfred Binet wrote a book on him. Inaudi would repeat the numbers he was given before he began his mental calculations.
Inaudi was referred to by the Nobel-prize-winning immunologist, Élie Metchnikoff (Ilya Ilyich Mechnikov), in his book The Nature of Man: Studies in Optimistic Philosophy (1905). Metchnikoff regarded Inaudi as an example of a mutation, in the sense announced by the Dutch botanist Hugo de Vries (Die Mutationstheorie, Vol. 1, Leipzig, 1901), i.e., a sudden leap to a distinct new type that might be regarded as a new species. Metchnikoff argued that this kind of abrupt leap in evolution might explain how humans had emerged from apes and that Inaudi was proof that such a mutation was possible.




See also


Serge Nicolas & Alessandro Guida, Charcot and the Mental Calculator Jacques Inaudi, in The European Yearbook of the History of Psychology 1 (2015), p. 107-138
Burman, J. T.; Guida, A.; Nicolas, S. (2015), "Hearing the inaudible experimental subject: Echoes of Inaudi, Binet's calculating prodigy.", History of Psychology, 18 (1): 47–68, doi:10.1037/a0038448, PMID 25664885
Endersby, Jim (September 2013), "Mutant Utopias: Evening Primroses and Imagined Futures in Early Twentieth-Century America" (PDF), Isis, 104 (3): 471–503, doi:10.1086/673270, JSTOR 10.1086/673270, PMID 24341261, S2CID 12125667




References






External links



Flammarion article on Inaudi Archived 2008-12-01 at the Wayback Machine

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