{"id":1197,"date":"2015-08-26T14:28:44","date_gmt":"2015-08-26T12:28:44","guid":{"rendered":"http:\/\/le-bars.net\/yoann\/?p=1197"},"modified":"2015-09-16T13:05:07","modified_gmt":"2015-09-16T11:05:07","slug":"un-eloge-du-temps-long","status":"publish","type":"post","link":"https:\/\/le-bars.net\/yoann\/fr\/2015\/08\/26\/un-eloge-du-temps-long\/","title":{"rendered":"Un \u00e9loge du temps long"},"content":{"rendered":"<figure style=\"width: 1073px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/cds.cern.ch\/record\/39444\" title=\"L\u2019image sur le site du CERN\" target=\"_blank\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/cds.cern.ch\/record\/39444\/files\/9710002_05.jpeg?resize=660%2C628\" width=\"660\" height=\"628\" alt=\"Un exemple de simulation d\u2019une exp\u00e9rience du LHC\" class \/><\/a><figcaption class=\"wp-caption-text\">Un exemple de simulation d\u2019une exp\u00e9rience du LHC \u2013 \u00a9\u00a01997\u00a0\u2013\u00a02015\u00a0<a href=\"http:\/\/home.web.cern.ch\/fr\" title=\"CERN\" target=\"_blank\">CERN<\/a> sous contrat <a href=\"http:\/\/creativecommons.org\/licenses\/by-sa\/4.0\/\" title=\"CC-BY-SA-4.0\" target=\"_blank\">CC-BY-SA-4.0<\/a>.<\/figcaption><\/figure>\n<p>Le 4 juillet 2012, <a href=\"http:\/\/home.web.cern.ch\/fr\/topics\/higgs-boson\" title=\"Pr\u00e9sentation du boson de Higgs par le CERN\" target=\"_blank\">les exp\u00e9riences Atlas et CMS du Grand collisionneur de hadron (LHC)<\/a> ont annonc\u00e9 avoir identifi\u00e9 <a href=\"http:\/\/home.web.cern.ch\/fr\/about\/updates\/2013\/05\/basics-higgs-boson\" title=\"Les bases de la th\u00e9orie physique du boson de Higgs\" target=\"_blank\">le boson BEH<\/a>. Cela conduira \u00e0 l\u2019attribution du prix Nobel de physique 2013 \u00e0  <a href=\"https:\/\/fr.wikipedia.org\/wiki\/Fran%C3%A7ois_Englert\" title=\"Fran\u00e7ois Englert\" target=\"_blank\">Fran\u00e7ois\u00a0<span style=\"font-variant: small-caps;\">Englert<\/span><\/a> et <a href=\"https:\/\/fr.wikipedia.org\/wiki\/Peter_Higgs\" title=\"Peter Higgs\" target=\"_blank\">Peter\u00a0<span style=\"font-variant: small-caps;\">Higgs<\/span><\/a>. Au moment o\u00f9 j\u2019\u00e9cris ces lignes, les exp\u00e9riences du LHC continuent, tandis qu\u2019il monte dans les niveaux d\u2019\u00e9nergie. Le 6 ao\u00fbt 2014, <a href=\"http:\/\/sciences.blogs.liberation.fr\/home\/2014\/08\/rosetta-rejoint-sa-com%C3%A8te.html\" title=\"Rosetta rejoint sa comte par Science\u00b2\" target=\"_blank\">la sonde Rosetta rejoint la com\u00e8te 67P\/Tchourioumov-Gu\u00e9rassimenko<\/a>, notamment pour y d\u00e9poser un module appel\u00e9 Philae. Cette mission est \u00e0 l\u2019heure actuelle toujours en cours.<\/p>\n<p>Quel est le point commun entre une exp\u00e9rience de physique des particules et une mission scientifique spatiale\u202f? Elles s\u2019inscrivent toutes les deux dans une longue dur\u00e9e\u00a0: les premiers articles th\u00e9orisant le boson BEH ont \u00e9t\u00e9 publi\u00e9 en 1964<span class=\"footnote_referrer\"><a role=\"button\" tabindex=\"0\" onclick=\"footnote_moveToReference_1197_1('footnote_plugin_reference_1197_1_1');\" onkeypress=\"footnote_moveToReference_1197_1('footnote_plugin_reference_1197_1_1');\" ><sup id=\"footnote_plugin_tooltip_1197_1_1\" class=\"footnote_plugin_tooltip_text\">1<\/sup><\/a><span id=\"footnote_plugin_tooltip_text_1197_1_1\" class=\"footnote_tooltip\">Fran\u00e7ois\u00a0<span style=\"font-variant: small-caps;\">Englert<\/span> et Robert\u00a0<span style=\"font-variant: small-caps;\">Brout<\/span>, 1964. \u00ab\u202fBroken symmetry and the mass of gauge vector mesons\u202f\u00bb, <em>Physical Review Letters<\/em>, vol.\u00a013, n\u00b0\u00a09,\u200e pp.\u00a0321\u00a0\u2013\u00a0323. <a href=\"http:\/\/dx.doi.org\/10.1103\/PhysRevLett.13.321\" title=\"10.1103\/PhysRevLett.13.321\" target=\"_blank\">DOI\u00a0: 10.1103\/PhysRevLett.13.321<\/a>, <a href=\"http:\/\/journals.aps.org\/prl\/pdf\/10.1103\/PhysRevLett.13.321\" title=\"Article de Englert et Brout\" target=\"_blank\">consultable en ligne<\/a>.<\/span><\/span><script type=\"text\/javascript\"> jQuery('#footnote_plugin_tooltip_1197_1_1').tooltip({ tip: '#footnote_plugin_tooltip_text_1197_1_1', tipClass: 'footnote_tooltip', effect: 'fade', predelay: 0, fadeInSpeed: 200, delay: 400, fadeOutSpeed: 200, position: 'top right', relative: true, offset: [10, 10], });<\/script>\u202f<span class=\"footnote_referrer\"><a role=\"button\" tabindex=\"0\" onclick=\"footnote_moveToReference_1197_1('footnote_plugin_reference_1197_1_2');\" onkeypress=\"footnote_moveToReference_1197_1('footnote_plugin_reference_1197_1_2');\" ><sup id=\"footnote_plugin_tooltip_1197_1_2\" class=\"footnote_plugin_tooltip_text\">2<\/sup><\/a><span id=\"footnote_plugin_tooltip_text_1197_1_2\" class=\"footnote_tooltip\">Peter W. Higgs, 1964. \u00ab\u202fBroken symmetries and the masses of gauge bosons\u202f\u00bb, <em>Physical Review Letters<\/em>, vol.\u00a013, n\u00b0\u00a016,\u200e pp.\u00a0508 \u2013\u00a0509. <a href=\"http:\/\/dx.doi.org\/10.1103\/PhysRevLett.13.508\" title=\"10.1103\/PhysRevLett.13.508\" target=\"_blank\">DOI\u00a0: 10.1103\/PhysRevLett.13.508<\/a>, <a href=\"http:\/\/journals.aps.org\/prl\/pdf\/10.1103\/PhysRevLett.13.508\" title=\"Article de Higgs\" target=\"_blank\">consultable en ligne<\/a>.<\/span><\/span><script type=\"text\/javascript\"> jQuery('#footnote_plugin_tooltip_1197_1_2').tooltip({ tip: '#footnote_plugin_tooltip_text_1197_1_2', tipClass: 'footnote_tooltip', effect: 'fade', predelay: 0, fadeInSpeed: 200, delay: 400, fadeOutSpeed: 200, position: 'top right', relative: true, offset: [10, 10], });<\/script> et <a href=\"http:\/\/cds.cern.ch\/record\/1164451\/files\/CERN-Brochure-2009-003-Fre.pdf\" title=\"Guide du LHC par le CERN\" target=\"_blank\">la conception du LHC a d\u00e9but\u00e9 en 1994<\/a>. <a href=\"http:\/\/www.lemonde.fr\/idees\/article\/2014\/11\/12\/rosetta-une-reussite-europeenne_4522149_3232.html\" title=\"Rosetta, une r\u00e9ussite europ\u00e9enne\" target=\"_blank\">Les pr\u00e9mices de la mission Rosetta, quant \u00e0 elles, remontent \u00e0 1984 avec la validation du projet Horizon\u00a02000<\/a>.<\/p>\n<p><!--more--><\/p>\n<p>Ces derniers temps, <a href=\"https:\/\/fr.wikipedia.org\/wiki\/Michel_Onfray\" title=\"Michel\u00a0Onfray\" target=\"_blank\">Michel\u00a0<span style=\"font-variant: small-caps;\">Onfray<\/span><\/a> se demande <a href=\"https:\/\/www.youtube.com\/watch?v=WwnueV9xM94\" title=\"Quand on est assimil\u00e9 \u00e0 Hitler, on n\u2019a pas les \u00e9paules \u00e0 30 ans\u202f!\" target=\"_blank\">o\u00f9 sont nos cath\u00e9drales<\/a>. Par cette formule, il critique le fait que notre civilisation d\u00e9cadente ne serait plus que consum\u00e9riste, d\u00e9sormais incapable de mener des projets de grande ambition et de longue dur\u00e9e. Le LHC et Rosetta sont pourtant des exemples de projets qui se sont inscrits dans des temps plus longs que les carri\u00e8res des individus qui les ont men\u00e9 \u00e0 terme. Voil\u00e0 bien des exemples d\u2019entreprises qui d\u00e9passaient ceux qui les ont entrepris, qui non seulement ont conduit \u00e0 des r\u00e9alisations mat\u00e9riels, mais ont \u00e9galement permis d\u2019avancer dans notre compr\u00e9hension du monde.<\/p>\n<p>Si l\u2019on veut s\u2019en tenir aux seuls projets architecturaux, on peut par exemple noter que le concours pour s\u00e9lectionner le projet de b\u00e2timent qui deviendra <a href=\"http:\/\/www.quaibranly.fr\/\" title=\"Site du mus\u00e9e du quai Branly\" target=\"_blank\">le mus\u00e9e du quai Branly<\/a> a \u00e9t\u00e9 <a href=\"https:\/\/fr.wikipedia.org\/wiki\/Mus%C3%A9e_du_quai_Branly\" title=\"Le mus\u00e9e du quai Branly sur Wikip\u00e9dia\" target=\"_blank\">ouvert en 1999, tandis que l\u2019inauguration du mus\u00e9e a eu lieu en 2006<\/a>. La superficie de l\u2019\u00e9difice est bien plus importante que celle de la cath\u00e9drale Notre-dame de Paris et il est d\u00e9di\u00e9 aux cultures et \u00e0 l\u2019Histoire. Je ne suis pas certain qu\u2019il faille regretter que les m\u00e9thodes de constructions moderne permettent de r\u00e9aliser des b\u00e2timents encore plus ambitieux que des cath\u00e9drales en bien moins de temps qu\u2019il n\u2019\u00e9tait n\u00e9cessaire pour terminer ces derni\u00e8res\u2026<\/p>\n<p>\u00c0 mon sens, voici au moins trois exemples, mais je pourrais en donner bien d\u2019autres, qui prouvent que l\u2019esprit des b\u00e2tisseurs de cath\u00e9drales est toujours bien vivant. C\u2019est-\u00e0-dire la volont\u00e9 de r\u00e9aliser des projets ambitieux qui d\u00e9passent ceux qui les mettent en \u0153uvre. Plus encore, au-del\u00e0 de toute conviction religieuse, que les projets d\u2019envergures ne soient d\u00e9sormais plus uniquement assujettis \u00e0 la religion ou au prestige du pouvoir politique me semble de toute fa\u00e7on un bon signe.<\/p>\n<p>Enfin, je consid\u00e8re qu\u2019au moins les deux premiers exemples sont clairement des r\u00e9ussites europ\u00e9ennes. Sans l\u2019Europe, on peut douter qu\u2019une coordination d\u2019autant de pays sur une dur\u00e9e aussi longue ait pu \u00eatre aussi fructueuse, si m\u00eame elle ait pu exister. Si l\u2019Europe montre, au moment o\u00f9 j\u2019\u00e9cris ces lignes, de graves dysfonctionnements, comme sur <a href=\"http:\/\/www.lemonde.fr\/europe\/article\/2015\/08\/22\/yanis-varoufakis-la-veritable-cible-du-docteur-schauble-est-la-france-et-son-etat-providence_4733532_3214.html\" title=\"Yanis Varoufakis\u00a0: \u00ab\u202fla v\u00e9ritable cible du docteur Sha\u00fcble est la France et son \u00e9tat providence\u202f\u00bb\" target=\"_blank\">le cas de la Gr\u00e8ce<\/a> ou sur <a href=\"http:\/\/www.lemonde.fr\/idees\/article\/2015\/08\/24\/migrants-europe-reveille-toi_4734984_3232.html\" title=\"Migrants et r\u00e9fugi\u00e9s\u00a0: Europe, r\u00e9veille toi\u202f!\" target=\"_blank\">celui des migrants<\/a>, il me semblerait dommage que ces difficult\u00e9s objectives soient l\u2019occasion de jeter le b\u00e9b\u00e9 avec l\u2019eau du bain.<\/p>\n<div class=\"speaker-mute footnotes_reference_container\"> <div class=\"footnote_container_prepare\"><p><span role=\"button\" tabindex=\"0\" class=\"footnote_reference_container_label pointer\" onclick=\"footnote_expand_collapse_reference_container_1197_1();\">Notes<\/span><span role=\"button\" tabindex=\"0\" class=\"footnote_reference_container_collapse_button\" style=\"display: none;\" onclick=\"footnote_expand_collapse_reference_container_1197_1();\">[<a id=\"footnote_reference_container_collapse_button_1197_1\">+<\/a>]<\/span><\/p><\/div> <div id=\"footnote_references_container_1197_1\" style=\"\"><table class=\"footnotes_table footnote-reference-container\"><caption class=\"accessibility\">Notes<\/caption> <tbody> \r\n\r\n<tr class=\"footnotes_plugin_reference_row\"> <th scope=\"row\" class=\"footnote_plugin_index_combi pointer\"  onclick=\"footnote_moveToAnchor_1197_1('footnote_plugin_tooltip_1197_1_1');\"><a id=\"footnote_plugin_reference_1197_1_1\" class=\"footnote_backlink\"><span class=\"footnote_index_arrow\">&#8593;<\/span>1<\/a><\/th> <td class=\"footnote_plugin_text\">Fran\u00e7ois\u00a0<span style=\"font-variant: small-caps;\">Englert<\/span> et Robert\u00a0<span style=\"font-variant: small-caps;\">Brout<\/span>, 1964. \u00ab\u202fBroken symmetry and the mass of gauge vector mesons\u202f\u00bb, <em>Physical Review Letters<\/em>, vol.\u00a013, n\u00b0\u00a09,\u200e pp.\u00a0321\u00a0\u2013\u00a0323. <a href=\"http:\/\/dx.doi.org\/10.1103\/PhysRevLett.13.321\" title=\"10.1103\/PhysRevLett.13.321\" target=\"_blank\">DOI\u00a0: 10.1103\/PhysRevLett.13.321<\/a>, <a href=\"http:\/\/journals.aps.org\/prl\/pdf\/10.1103\/PhysRevLett.13.321\" title=\"Article de Englert et Brout\" target=\"_blank\">consultable en ligne<\/a>.<\/td><\/tr>\r\n\r\n<tr class=\"footnotes_plugin_reference_row\"> <th scope=\"row\" class=\"footnote_plugin_index_combi pointer\"  onclick=\"footnote_moveToAnchor_1197_1('footnote_plugin_tooltip_1197_1_2');\"><a id=\"footnote_plugin_reference_1197_1_2\" class=\"footnote_backlink\"><span class=\"footnote_index_arrow\">&#8593;<\/span>2<\/a><\/th> <td class=\"footnote_plugin_text\">Peter W. Higgs, 1964. \u00ab\u202fBroken symmetries and the masses of gauge bosons\u202f\u00bb, <em>Physical Review Letters<\/em>, vol.\u00a013, n\u00b0\u00a016,\u200e pp.\u00a0508 \u2013\u00a0509. <a href=\"http:\/\/dx.doi.org\/10.1103\/PhysRevLett.13.508\" title=\"10.1103\/PhysRevLett.13.508\" target=\"_blank\">DOI\u00a0: 10.1103\/PhysRevLett.13.508<\/a>, <a href=\"http:\/\/journals.aps.org\/prl\/pdf\/10.1103\/PhysRevLett.13.508\" title=\"Article de Higgs\" target=\"_blank\">consultable en ligne<\/a>.<\/td><\/tr>\r\n\r\n <\/tbody> <\/table> <\/div><\/div><script type=\"text\/javascript\"> function footnote_expand_reference_container_1197_1() { jQuery('#footnote_references_container_1197_1').show(); jQuery('#footnote_reference_container_collapse_button_1197_1').text('\u2212'); } function footnote_collapse_reference_container_1197_1() { jQuery('#footnote_references_container_1197_1').hide(); jQuery('#footnote_reference_container_collapse_button_1197_1').text('+'); } function footnote_expand_collapse_reference_container_1197_1() { if (jQuery('#footnote_references_container_1197_1').is(':hidden')) { footnote_expand_reference_container_1197_1(); } else { footnote_collapse_reference_container_1197_1(); } } function footnote_moveToReference_1197_1(p_str_TargetID) { footnote_expand_reference_container_1197_1(); var l_obj_Target = jQuery('#' + p_str_TargetID); if (l_obj_Target.length) { jQuery( 'html, body' ).delay( 0 ); jQuery('html, body').animate({ scrollTop: l_obj_Target.offset().top - window.innerHeight * 0.2 }, 380); } } function footnote_moveToAnchor_1197_1(p_str_TargetID) { footnote_expand_reference_container_1197_1(); var l_obj_Target = jQuery('#' + p_str_TargetID); if (l_obj_Target.length) { jQuery( 'html, body' ).delay( 0 ); jQuery('html, body').animate({ scrollTop: l_obj_Target.offset().top - window.innerHeight * 0.2 }, 380); } }<\/script>","protected":false},"excerpt":{"rendered":"<p>Le 4 juillet 2012, les exp\u00e9riences Atlas et CMS du Grand collisionneur de hadron (LHC) ont annonc\u00e9 avoir identifi\u00e9 le boson BEH. Cela conduira \u00e0 l\u2019attribution du prix Nobel de physique 2013 \u00e0 Fran\u00e7ois\u00a0Englert et Peter\u00a0Higgs. Au moment o\u00f9 j\u2019\u00e9cris ces lignes, les exp\u00e9riences du LHC continuent, tandis qu\u2019il monte dans les niveaux d\u2019\u00e9nergie. Le &hellip; <a href=\"https:\/\/le-bars.net\/yoann\/fr\/2015\/08\/26\/un-eloge-du-temps-long\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">Un \u00e9loge du temps long<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[79],"tags":[112,81,83],"class_list":["post-1197","post","type-post","status-publish","format-standard","hentry","category-point-de-vue","tag-culture-fr","tag-science","tag-societe"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Un \u00e9loge du 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Lucr\u00e8ce Borgia, Cin\u00e9dis.)), c\u2019est en 1960 qu\u2019il tiendra\u2026","rel":"","context":"Dans &quot;Culture&quot;","block_context":{"text":"Culture","link":"https:\/\/le-bars.net\/yoann\/fr\/category\/culture\/"},"img":{"alt_text":"Claude Carliez","src":"https:\/\/i0.wp.com\/le-bars.net\/yoann\/wordpress\/wp-content\/uploads\/2015\/06\/IMG_3095-768x1024.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/le-bars.net\/yoann\/wordpress\/wp-content\/uploads\/2015\/06\/IMG_3095-768x1024.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/le-bars.net\/yoann\/wordpress\/wp-content\/uploads\/2015\/06\/IMG_3095-768x1024.jpg?resize=525%2C300 1.5x"},"classes":[]},{"id":6223,"url":"https:\/\/le-bars.net\/yoann\/fr\/2025\/01\/30\/voulez-vous-etre-de-ceux-la\/","url_meta":{"origin":1197,"position":3},"title":"Voulez-vous \u00eatre de ceux-l\u00e0\u202f?","author":"Yoann Le Bars","date":"30 janvier 2025","format":false,"excerpt":"Qu\u2019est-ce que le harc\u00e8lement\u202f? La lutte contre le harc\u00e8lement fait partie, avec ma comparse Chlo\u00e9\u00a0Debauges, de nos engagements. Force est de constater que sur ce sujet, il y a beaucoup de coups \u00e0 prendre, que c\u2019est une lutte sans cesse recommenc\u00e9e. Mais qu\u2019est-ce que le harc\u00e8lement\u202f? \u00c0 quel moment d\u00e9passe-t-on\u2026","rel":"","context":"Dans &quot;Point de vue&quot;","block_context":{"text":"Point de vue","link":"https:\/\/le-bars.net\/yoann\/fr\/category\/point-de-vue\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":627,"url":"https:\/\/le-bars.net\/yoann\/fr\/2015\/07\/23\/le-big-bang-quand-lunivers-ne-fait-pas-boum%e2%80%af\/","url_meta":{"origin":1197,"position":4},"title":"Le Big\u00a0bang\u00a0: quand l\u2019Univers ne fait pas boum\u202f!","author":"Yoann Le Bars","date":"23 juillet 2015","format":false,"excerpt":"Est-ce parce qu\u2019il touche \u00e0 l\u2019origine des choses\u202f? 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