WolframAlpha search engine WolframAlpha is a privately owned search engine that allows you to “compute expérimenté-level answers using Wolfram’s breakthrough algorithms, knowledgebase, and Détiens technology.”
— модель расстояний Солнечной системы, https://telegra.ph/Comment-calculer-le-coût-dune-heure-de-Main-dÅ“uvre-06-28