{"id":194,"date":"2018-04-29T18:05:15","date_gmt":"2018-04-29T16:05:15","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/lehning\/?p=194"},"modified":"2018-05-15T19:58:29","modified_gmt":"2018-05-15T17:58:29","slug":"les-philosophes-font-ils-la-cuisine","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/lehning\/2018\/04\/29\/les-philosophes-font-ils-la-cuisine\/","title":{"rendered":"Les philosophes font-ils la cuisine ?"},"content":{"rendered":"<p>Un c\u00e9l\u00e8bre philosophe contemporain aurait affirm\u00e9 : &#8220;les math\u00e9matiques ne servent \u00e0 rien dans la vie quotidienne&#8221;. Pourtant, je me souviens parfaitement de ma m\u00e8re me demandant : &#8220;quatre tiers de 200 grammes, \u00e7a fait combien Herv\u00e9 ?&#8221;.<\/p>\n<h2>Des maths \u00e0 la cuisine<\/h2>\n<p>Pourquoi cette question ? Pas pour tester ma capacit\u00e9s en calcul mental. Tout simplement parce que nous \u00e9tions 8 \u00e0 table et que ma m\u00e8re utilisait une recette de cuisine donn\u00e9e pour 6. Les ingr\u00e9dients devaient donc \u00eatre multipli\u00e9s par 8\/6, soit 4\/3.\u00a0 Vue la pr\u00e9cision des balances, une r\u00e9ponse pr\u00e9cise \u00e9tait 270 grammes, r\u00e9pondre 266,666&#8230; aurait \u00e9t\u00e9 ridicule.<\/p>\n<h2>Des notions subtiles<\/h2>\n<p>Autrement dit, nous avons affaire ici, dans la vie quotidienne, \u00e0 deux notions math\u00e9matiques subtiles : la multiplication par une fraction et la notion d&#8217;approximation. Pour r\u00e9pondre \u00e0 la question avec toute la rigueur math\u00e9matique qu&#8217;elle exige, nous dirons donc : &#8220;certains philosophes ne font pas la cuisine&#8221;.<\/p>\n<!-- AddThis Advanced Settings generic via filter on the_content --><!-- AddThis Share Buttons generic via filter on the_content -->","protected":false},"excerpt":{"rendered":"<p>Un c\u00e9l\u00e8bre philosophe contemporain aurait affirm\u00e9 : &#8220;les math\u00e9matiques ne servent \u00e0 rien dans la vie quotidienne&#8221;. Pourtant, je me souviens parfaitement de ma m\u00e8re me demandant : &#8220;quatre tiers de 200 grammes, \u00e7a fait combien Herv\u00e9 ?&#8221;. Des maths \u00e0 la cuisine Pourquoi cette question ? Pas pour tester ma capacit\u00e9s en calcul mental. &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/lehning\/2018\/04\/29\/les-philosophes-font-ils-la-cuisine\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">Les philosophes font-ils la cuisine ?<\/span>  <span class=\"meta-nav\">&rarr;<\/span><\/a><!-- AddThis Advanced Settings generic via filter on get_the_excerpt --><!-- AddThis Share Buttons generic via filter on get_the_excerpt --><\/p>\n","protected":false},"author":12,"featured_media":197,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[29,104,15,98],"tags":[97,40,96,95],"class_list":["post-194","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-maths-2","category-philosophie","category-reflexions","category-viequotidienne","tag-luc-ferry","tag-mathematiques","tag-philosophie","tag-vie-quotidienne"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Les philosophes font-ils la cuisine ?, par Herv\u00e9 Lehning<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogs.futura-sciences.com\/lehning\/2018\/04\/29\/les-philosophes-font-ils-la-cuisine\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Les philosophes font-ils la cuisine ?, par Herv\u00e9 Lehning\" \/>\n<meta property=\"og:description\" content=\"Un c\u00e9l\u00e8bre philosophe contemporain aurait affirm\u00e9 : &#8220;les math\u00e9matiques ne servent \u00e0 rien dans la vie quotidienne&#8221;. Pourtant, je me souviens parfaitement de ma m\u00e8re me demandant : &#8220;quatre tiers de 200 grammes, \u00e7a fait combien Herv\u00e9 ?&#8221;. Des maths \u00e0 la cuisine Pourquoi cette question ? 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