{"id":11276,"date":"2022-02-23T16:11:43","date_gmt":"2022-02-23T16:11:43","guid":{"rendered":"https:\/\/summitinterconnect.ca\/blog\/article\/le-petit-moteur-qui-pourrait-changer-le-monde\/"},"modified":"2025-12-17T10:48:38","modified_gmt":"2025-12-17T10:48:38","slug":"the-little-engine-that-could-change-the-world","status":"publish","type":"post","link":"https:\/\/summitinterconnect.ca\/fr\/blog\/article\/the-little-engine-that-could-change-the-world\/","title":{"rendered":"Le petit moteur qui pourrait changer le monde"},"content":{"rendered":"<p>La premi\u00e8re machine \u00e0 vapeur \u00e9tait une pompe \u00e0 eau destin\u00e9e \u00e0 maintenir les mines au sec. Apr\u00e8s de nombreuses r\u00e9visions, vers la fin du XVIIIe si\u00e8cle, des moteurs \u00e0 vapeur \u00e9quipaient d\u00e9j\u00e0 les trains et les navires. Ces inventions ont contribu\u00e9 \u00e0 transformer le monde. La population humaine sur la plan\u00e8te a commenc\u00e9 \u00e0 cro\u00eetre de mani\u00e8re exponentielle \u00e0 cette \u00e9poque \u2013 vous l\u2019avez peut-\u00eatre \u00e9tudi\u00e9 en cours d\u2019histoire \u2013 c\u2019est la r\u00e9volution industrielle.<\/p>\n<p>Disons que vous devez construire un train ou un navire. Comment vous y prenez-vous ? Que devez-vous d\u00e9terminer ? Le type de carburant est-il important ? Influence-t-il la distance que vous pouvez parcourir ? Le poids du train ou du navire, la quantit\u00e9 de fret transport\u00e9e, le type de moteur utilis\u00e9 sont-ils des facteurs d\u00e9terminants ? Chaque tonne suppl\u00e9mentaire de carburant signifie une tonne de cargaison en moins \u2013 mais trop peu de carburant, et vous risquez de ne pas atteindre votre destination, ce qui pose un s\u00e9rieux probl\u00e8me si vous d\u00e9rivez au milieu de l\u2019Atlantique Nord.<\/p>\n<p>Les scientifiques avaient besoin d\u2019un moyen simple pour comparer diff\u00e9rents carburants, moteurs, navires et trains. Ils ont donc d\u00e9velopp\u00e9 une s\u00e9rie d\u2019\u00e9quations permettant d\u2019obtenir un chiffre commun \u00e0 toutes les exp\u00e9riences. Ce chiffre repr\u00e9sentait la quantit\u00e9 d\u2019eau pouvant \u00eatre port\u00e9e \u00e0 \u00e9bullition avec une quantit\u00e9 donn\u00e9e de carburant ; il indiquait la distance qu\u2019un train ou un navire pouvait parcourir, la hauteur d\u2019une colline que le train pouvait gravir, ou encore la vitesse d\u2019un train en descente. Gr\u00e2ce \u00e0 ces \u00e9quations, ils ont pu comprendre et optimiser les moteurs \u00e0 vapeur. L\u2019id\u00e9e a tellement bien fonctionn\u00e9 qu\u2019ils ont adapt\u00e9 ces m\u00eames techniques \u00e0 d\u2019autres branches de la physique : m\u00e9canique, thermodynamique, \u00e9lectricit\u00e9 et magn\u00e9tisme, hydrodynamique, etc.<\/p>\n<p>L\u2019\u00e9nergie est le concept \u00e9labor\u00e9 par les scientifiques et les math\u00e9maticiens pour traiter toutes ces diff\u00e9rentes notions.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>La premi\u00e8re machine \u00e0 vapeur \u00e9tait une pompe \u00e0 eau destin\u00e9e \u00e0 maintenir les mines au sec. Apr\u00e8s de nombreuses r\u00e9visions, vers la fin du XVIIIe si\u00e8cle, des moteurs \u00e0 vapeur \u00e9quipaient d\u00e9j\u00e0 les trains et les navires. Ces inventions ont contribu\u00e9 \u00e0 transformer le monde. La population humaine sur la plan\u00e8te a commenc\u00e9 \u00e0 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","footnotes":""},"categories":[87],"tags":[],"class_list":["post-11276","post","type-post","status-publish","format-standard","hentry","category-theorie"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Le petit moteur qui pourrait changer le monde - Summit Interconnect CA<\/title>\n<meta name=\"description\" content=\"Summit Interconnect, une soci\u00e9t\u00e9 de fabrication de circuits imprim\u00e9s, explique le r\u00f4le jou\u00e9 par l&#039;\u00e9nergie et son importance dans les processus de fabrication de circuits imprim\u00e9s \u00e0 rotation rapide\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/summitinterconnect.ca\/fr\/blog\/article\/the-little-engine-that-could-change-the-world\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Le petit moteur qui pourrait changer le monde - 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