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1 Institut d'histoire et de philosophie des sciences et des techniques (IHPST), UMR 8590, Université Paris-1, CNRS, ENS, 6, rue du Four, 75006 Paris, France. Electronic address: jean.gayon@univ-paris1.fr.
2 Académie des sciences, 23, quai de Conti, 75006 Paris, France. Electronic address: francois.gros@academie-sciences.fr.
3 USR3608 Centre Cavaillès - République des Savoirs, École normale supérieure, 29, rue d'Ulm, 75230 Paris cedex 5, France. Electronic address: michel.morange@ens.fr.
1 Institut d'histoire et de philosophie des sciences et des techniques (IHPST), UMR 8590, Université Paris-1, CNRS, ENS, 6, rue du Four, 75006 Paris, France. Electronic address: jean.gayon@univ-paris1.fr.
2 Académie des sciences, 23, quai de Conti, 75006 Paris, France. Electronic address: francois.gros@academie-sciences.fr.
3 USR3608 Centre Cavaillès - République des Savoirs, École normale supérieure, 29, rue d'Ulm, 75230 Paris cedex 5, France. Electronic address: michel.morange@ens.fr.