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Giacomo Inaudi (13 October 1867 – 10 November 1950), also known as Jacques Inaudi in France, was an Italian
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.
Flammarion article on Inaudi
1867 births 1950 deaths People from the Province of Cuneo Mental calculators 19th-century Italian mathematicians 20th-century Italian mathematicians Shepherds {{entertainer-stub
Giacomo Inaudi (13 October 1867 – 10 November 1950), also known as Jacques Inaudi in France, was an Italian calculating prodigy
Human calculator is a term to describe a person with a prodigious ability in some area of mental calculation (such as adding, subtracting, multiplying or dividing large numbers).
The world's best mental calculators are invited every two yea ...
.
He was born in Roccabruna
Roccabruna (; oc, La Ròcha de Draonier or ; pms, La Ròcia ëd Droné) is a commune in the Province of Cuneo and the Italian region of Piedmont, located about southwest of Turin and about northwest of Cuneo.
Roccabruna borders the following m ...
, 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
Jean-Martin Charcot (; 29 November 1825 – 16 August 1893) was a French neurology, neurologist and professor of anatomical pathology. He worked on hypnosis and hysteria, in particular with his hysteria patient Louise Augustine Gleizes. 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 * *References
External links
Flammarion article on Inaudi
1867 births 1950 deaths People from the Province of Cuneo Mental calculators 19th-century Italian mathematicians 20th-century Italian mathematicians Shepherds {{entertainer-stub