Portuguese Protótipo internacional do quilograma Cited by user Cadnero on 15 May 2023 [[Ficheiro:International_prototype_of_the_kilogram_aka_Le_Grand_K.jpg|miniaturadaimagem|O protótipo internacional do quilograma, também conhecido como Le Grand K ou Big…
English International Prototype of the Kilogram Cited by user Citation bot on 19 Mar 2023 The International Prototype of the Kilogram is an object that was used to define the magnitude of the mass of the kilogram from 1889, when it replaced the Kilogramme des…