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Jacques Inaudi

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Giacomo Inaudi

Giacomo Inaudi (13 October 1867[1] – 10 November 1950), also known as Jacques Inaudi in France, was an Italian calculating prodigy.

He was born in Onorato, 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.[2]

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.[3]

References

  1. ^ Cnum.cnam.fr
  2. ^ Nicholas, S.; Gounden, Y.; Levine, Z. (2011). "The memory of two great mental calculators: Charcot and Binet's neglected 1893 experiments". American Journal of Psychology. 124 (2): 235–242. doi:10.5406/amerjpsyc.124.2.0235. PMID 21834408.
  3. ^ Metchnikoff, É., 1905. The Nature of Man: Studies in optimistic philosophy. New York & London: G.P. Putnam's Sons. pp.56–59

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See also