{"id":5296,"date":"2023-05-11T11:52:00","date_gmt":"2023-05-11T09:52:00","guid":{"rendered":"https:\/\/micronora.com\/?p=5296"},"modified":"2023-05-11T11:53:49","modified_gmt":"2023-05-11T09:53:49","slug":"des-telescopes-sous-la-mer","status":"publish","type":"post","link":"https:\/\/micronora.com\/en\/des-telescopes-sous-la-mer\/","title":{"rendered":"Des t\u00e9lescopes sous la mer"},"content":{"rendered":"<p><strong><em>Cela peut sembler \u00e9tonnant mais l\u2019astronomie et la physique ne se contentent pas de prouesses technologiques et spatiales comme les t\u00e9lescopes James Webb ou Edwin Hubble, d\u2019acc\u00e9l\u00e9rateurs g\u00e9ants ou encore d\u2019immenses champs d\u2019antennes ou de t\u00e9lescopes de tous types. La physique des particules, qui est celle qui tend \u00e0 expliquer l\u2019univers, recherche d\u00e9sesp\u00e9r\u00e9ment \u00e0 mettre en \u00e9vidence et surtout \u00e0 compter certaines particules tr\u00e8s discr\u00e8tes comme les neutrinos. Il existe d\u00e9j\u00e0 des appareillages \u00e0 l\u2019abri de perturbations cach\u00e9s sous des massifs montagneux notamment, mais leur sensibilit\u00e9 reste insuffisante. Avec le projet international KM3NeT la science passe la vitesse sup\u00e9rieure\u00a0!<\/em><\/strong><\/p>\n<p><strong>C\u2019est quoi un neutrino\u00a0?<\/strong><\/p>\n<p>Des 5 % de l\u2019univers connu, les neutrinos seraient le composant principal. Le probl\u00e8me c\u2019est que le neutrino n\u2019interagit pas avec la mati\u00e8re ce qui le rend quasi ind\u00e9tectable. Pourtant des milliards de neutrinos nous traversent chaque seconde, sans effet aucun. Le neutrino est produit en masse par les r\u00e9actions nucl\u00e9aires de fusion, notamment, au c\u0153ur des \u00e9toiles, mais aussi lors d\u2019\u00e9v\u00e8nements cataclysmiques ou d\u2019interactions de rayons cosmiques avec l\u2019atmosph\u00e8re. Il en existe trois types\u00a0: rouge, bleu et vert. Ils peuvent aussi osciller en changeant de couleur. Pouvoir les compter et savoir pourquoi certains disparaissent en se transformant, est essentiel pour comprendre notre univers.<\/p>\n<p><strong>Le projet KM3NeT<\/strong><\/p>\n<p>Il s\u2019agit de faire appel aux limites de la technologie m\u00e9canique et \u00e9lectronique pour immerger dans les profondeurs de la M\u00e9diterran\u00e9e des centaines de d\u00e9tecteurs en r\u00e9seau et d\u2019en r\u00e9cup\u00e9rer les donn\u00e9es lorsque des \u00e9v\u00e8nements (passage d\u2019un neutrino) seront comptabilis\u00e9s et film\u00e9s. La th\u00e9orie est s\u00e9duisante &#8230;<\/p>\n<p><a href=\"https:\/\/micronora-informations.fr\/actu-microtechnique\/des-telescopes-sous-la-mer\/\" target=\"_blank\" rel=\"noopener\"><em><strong>Lire la suite\u00a0<\/strong><\/em><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Cela peut sembler \u00e9tonnant mais l\u2019astronomie et la physique ne  [&#8230;]<\/p>\n","protected":false},"author":5,"featured_media":5297,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-5296","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Des t\u00e9lescopes sous la mer - Micronora<\/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:\/\/micronora.com\/en\/des-telescopes-sous-la-mer\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Des t\u00e9lescopes sous la mer - 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