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Extensible Markup Language - Définition

Source: Wikipédia sous licence CC-BY-SA 3.0.
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- Introduction - Historique - Composants et syntaxe d'un document XML - Comparaison à d'autres formats - Outils et processus XML - Utilisations et langages dérivés

Comparaison à d'autres formats

Pour savoir à quoi ressemble du XML, le mieux est certainement d'en voir. Commençons par un exemple simplifié. Il propose une transposition du début de cet article dans un langage XML appliqué à la documentation technique, DocBook.

                        xmlns="http://docbook.org/ns/docbook">            >Extensible Markup Language>                >                                                     >XML> (Extensible Markup Language,             « langage de balisage extensible »)...          >        >

Dans ce code, chacun peut identifier des portions de texte (exemple : Extensible, XML…) et des mots clés encadrés de chevrons (<, >) :

, , <para>… Ce <span class='lienGlossaire'><a href='https://www.techno-science.net/definition/221.html'>document</a></span> est ouvert par le mot clé <article>, et clos par </article>. Notez la <span class='lienGlossaire'><a href='https://www.techno-science.net/definition/10865.html'>barre oblique</a></span>, elle signifie la <span class='lienGlossaire'><a href='https://www.techno-science.net/definition/5308.html'>fermeture</a></span> de la balise article. En XML, une balise doit toujours être <i>fermée</i>. À l'intérieur de cet <i>article</i>, il y a un titre (<<span class="lang-en" lang="en" xml:lang="en"><i>title</i></span>>), un paragraphe (<para>), et un acronyme (<<span class="lang-en" lang="en" xml:lang="en"><i>acronym</i></span>>).</p> <p>Ce qui est spécifique à XML, c'est le choix des chevrons pour identifier les balises, et l'obligation de les fermer. Les mots clés ne sont pas définis par la <span class='lienGlossaire'><a href='https://www.techno-science.net/glossaire-definition/Norme.html'>norme</a></span> XML, mais par le vocabulaire choisi. En XHTML, l'élément racine aurait été <html>, en XSLT, cela peut être <xsl:stylesheet> ou <xsl:transform>. Ceci illustre la nature extensible d'XML. Ce n'est pas un jeu de noms réservés (exemple : <span class="lang-en" lang="en" xml:lang="en">echo, for, public, function, <span class='lienGlossaire'><a href='https://www.techno-science.net/glossaire-definition/CLASS.html'>class</a></span></span>…), mais plutôt des caractères réservés permettant de définir un « langage ».</p> <div lazyload="view"><!--lazy <div class="conteneurEncadre alignleft"> <div class="encadre encadreleft encadrePub"> <ins class="adsbygoogle" style="display:inline-block;width:300px;height:250px" data-ad-client="ca-pub-6990544335324031" data-ad-slot="7286811235"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script> </div> </div> lazy--></div> <p>Cet exemple illustre une autre spécificité de ce format. À part SGML, peu d'autres syntaxes permettent de séparer la <span class='lienGlossaire'><a href='https://www.techno-science.net/definition/6402.html'>définition</a></span> sémantique de l'information (qu'est-ce qui est titre, lien, section…), de l'apparence qu'on lui souhaite (aujourd'hui un titre est souligné, demain on le voudra peut-être en bleu). Cela fait d'XML un excellent format pour conserver des textes ou des <span class='lienGlossaire'><a href='https://www.techno-science.net/definition/222.html'>données</a></span>. Pour s'en convaincre, regardons ce que la même information donne dans d'autres formats.</p> <h3> <span class="mw-headline" id="Formats_binaires_.28un_exemple_Microsoft_Word.29">Formats binaires (un exemple <span class='lienGlossaire'><a href='https://www.techno-science.net/definition/416.html'>Microsoft</a></span> Word)</span></h3> <p>Les logiciels, surtout pour le grand public, aboutissent généralement à des fichiers. Le format se soucie d'abord d'être fiable et performant, mais est-il échangeable ? Le format d'enregistrement natif du traitement de texte Word est l'exemple du <span class="need_ref" style="cursor:help;" title="Ce passage nécessite une référence.">format binaire le plus déployé</span>. Il n'est pas lisible par l'humain. Le texte est difficile à extraire, le lien avec sa structuration (gras, italique…) est difficile à reconstruire. Dans la pratique, un document Word pose beaucoup de problèmes de conservation sur le long terme.</p> <pre> ÐÏ à¡± á > þÿ ! # þÿÿÿ ÿÿ% ð ¿ a bjbj%ç%ç Extensible Markup Language XML (Extensible Markup Language, « langage de balisage extensible ») i 8 @ñÿ 8 N o r m a l CJ _H aJ mH sH tH N @ N T i t r e 1 ÿ <b>[… beaucoup d'informations binaires supprimées ]</b> ÿ ÿÿÿÿ À F Document <span class='lienGlossaire'><a href='https://www.techno-science.net/glossaire-definition/Microsoft-Word.html'>Microsoft Word</a></span> MSWordDoc Word.Document.8 ô9²q </pre> <p>L'éditeur, Microsoft, propose désormais un format d'enregistrement en XML.</p> <h3> <span class="mw-headline" id="RTF_.28Rich_Text_Format.29">RTF (Rich Text Format)</span></h3> <p>Afin de favoriser l'échange avec d'autres traitements de texte, Microsoft proposa RTF <span class="lang-en" lang="en" xml:lang="en"><i>Rich Text Format</i></span> « format texte riche » (1987). Ce n'est pas un format binaire, les commandes sont inscrites en texte lisible, mais elles ne sont pas destinées à être écrites par un humain.</p> <pre> {\rtf {\f2\fs36\b <b>Extensible Markup Language</b>}\par {\b <b>XML</b>} <b>(Extensible Markup Language,</b> <b>« langage de balisage extensible »)...</b> \par } </pre> <p>On retrouve le <span class='lienGlossaire'><a href='https://www.techno-science.net/definition/686.html'>besoin</a></span> d'encadrer du contenu avec un marqueur (ici les accolades {}), d'attacher des propriétés à ces groupes. Ainsi, {\b XML} indique que les lettres XML sont en gras, <i>bold</i> : \b. Pour le titre, humains comme logiciels ne peuvent pas l'identifier par "\f2\fs36\b", ce code indique en fait l'apparence du paragraphe (gras, gros…). Ce format a montré qu'il pouvait fonctionner dans des logiciels, mais sa croissante <span class='lienGlossaire'><a href='https://www.techno-science.net/glossaire-definition/Complexite.html'>complexité</a></span> nous instruit sur ses limites. Il est difficilement extensible, et en tous cas, inutilisable pour structurer la sémantique d'un texte.</p> <h3> <span class="mw-headline" id="TEX">TX</span></h3> <p><span class='lienGlossaire'><a href='https://www.techno-science.net/glossaire-definition/Donald-Knuth.html'>Donald Knuth</a></span>, auteur de <span class="lang-en" lang="en" xml:lang="en"><i>The Art of Computer Programming</i></span> « l'Art de la programmation » s'est interrompu en 1977, excédé par la mauvaise qualité d'impression de ses ouvrages. Il développa TX, une syntaxe très élaborée destinée à l'écriture humaine, spécialement puissante pour les équations <span class='lienGlossaire'><a href='https://www.techno-science.net/glossaire-definition/Mathematiques.html'>mathématiques</a></span>. On remarquera que RTF lui a repris ses séparateurs (<i>\</i>, <i>{</i>, <i>}</i>), mais pas son système de macros pour factoriser les commandes.</p> <div dir="ltr" class="mw-geshi" style="text-align: left;"> <div class="latex source-latex" style="font-family:monospace;"> <pre class="de1"> <span class="sy0">\</span><span class="kw1">documentclass</span><span class="sy0">[</span><span class="re2">a4paper, 11pt</span><span class="sy0">]{</span><span class="re9">article</span><span class="sy0">}</span> <span class="sy0">\</span><span class="kw1">title</span><span class="sy0">{</span><span class="re9">Extensible Markup Language</span><span class="sy0">}</span> <span class="re8">\begin</span><span class="sy0">{</span><span class="re9"><span class="re7">document</span></span><span class="sy0">}</span> <span class="sy0">\</span><span class="kw1">maketitle</span> <span class="re8">\end</span><span class="sy0">{</span><span class="re9"><span class="re7">document</span></span><span class="sy0">}</span> </pre></div> </div> <p>TX reste le standard de l'édition <span class='lienGlossaire'><a href='https://www.techno-science.net/definition/2872.html'>scientifique</a></span> de qualité, en particulier pour la mise en forme des équations complexes. Toutefois, cela reste un <span class='lienGlossaire'><a href='https://www.techno-science.net/glossaire-definition/Langage-de-programmation.html'>langage de programmation</a></span> dédié à la mise en forme, davantage conçu pour l'apparence des documents que pour stocker/transférer des données.</p> <h3> <span class="mw-headline" id="wiki"><span class='lienGlossaire'><a href='https://www.techno-science.net/glossaire-definition/Wiki.html'>wiki</a></span></span></h3> <p>Une syntaxe wiki sait aussi séparer le contenu de la présentation.</p> <pre> =={{lang|en|Extensible Markup Language}}== '''XML''' ({{lang|en|Extensible Markup Language}}, « langage de balisage extensible »)… </pre> <p>Cependant, cette structuration repose ici sur des séquences de caractères particulières (<code>==, '''</code>). Or, le <span class='lienGlossaire'><a href='https://www.techno-science.net/glossaire-definition/Nombre.html'>nombre</a></span> de caractères sans signification n'est pas indéfini. Un tel format peut être approprié pour un seul type de document, mais ce n'est pas une syntaxe générique et facilement extensible.</p> <h3> <span class="mw-headline" id="XML.2C_format_textuel.2C_structur.C3.A9.2C_et_extensible">XML, format textuel, structuré, et extensible</span></h3> <p>Comparé aux langages plus haut, XML est une syntaxe générique et extensible. Il permet de structurer une grande variété de contenus, car son « langage » (vocabulaire et grammaire) peut être redéfini.</p> <!-- google_ad_section_end --> <div lazyload="view"><!--lazy <div class="conteneurEncadre aligncenter"> <div class="encadre encadrecenter encadrePub encadrePubBas"> <ins class="adsbygoogle" style="display:block" data-ad-format="autorelaxed" data-ad-client="ca-pub-6990544335324031" data-ad-slot="5195528847"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script> </div> </div> lazy--></div> <div class="naviguation"><div class="naviguationPrecedent"><a href="https://www.techno-science.net/glossaire-definition/Extensible-Markup-Language-page-2.html">Composants et syntaxe d'un document XML</a></div> <div class="naviguationSuivant"><a href="https://www.techno-science.net/glossaire-definition/Extensible-Markup-Language-page-4.html">Outils et processus XML</a></div></div><div class="blocSommaire blocSommaireBas"><div class="listeSommaire"><a href="https://www.techno-science.net/glossaire-definition/Extensible-Markup-Language.html"> - Introduction</a><a href="https://www.techno-science.net/glossaire-definition/Extensible-Markup-Language.html#ref_1"> - Historique</a><a href="https://www.techno-science.net/glossaire-definition/Extensible-Markup-Language-page-2.html"> - Composants et syntaxe d'un document XML</a><a href="https://www.techno-science.net/glossaire-definition/Extensible-Markup-Language-page-3.html"> - Comparaison à d'autres formats</a><a href="https://www.techno-science.net/glossaire-definition/Extensible-Markup-Language-page-4.html"> - Outils et processus XML</a><a href="https://www.techno-science.net/glossaire-definition/Extensible-Markup-Language-page-5.html"> - Utilisations et langages dérivés</a></div></div></div> </div> <div class="listeParticipationsBas"> <div class="sharethis sharethis-inline-share-buttons"></div> </div></div><div class="module moduleListeNewsRecentes"> <div class="listeTitres"> <div class="titres parite0" style="min-height:110px"> <a href="https://www.techno-science.net/actualite/hotel-lune-vous-pouvez-deja-reserver-chambre-N28220.html" aria-label="miniature"> <div class="miniature" style="width:110px; 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height:110px; overflow:hidden; position:relative;"> <picture> <source srcset='https://static.techno-science.net/illustrationWebp-mini/Libre/PXB/26/playstation-2618902-1280.jpg' type='image/webp'> <img src='https://static.techno-science.net/illustration-mini/Libre/PXB/26/playstation-2618902-1280.jpg' alt="miniature" style="width: 100%; height: 100%; object-fit: cover; object-position: center;" loading='lazy'> </picture> </div> </a> <div class="lienTitre"> <div class="entete2"><a href="https://www.techno-science.net/forum/viewtopic.php?t=71450#num1" target="_blank" aria-label="Forum"><div class="iconeCommentaires" nbCommentairesNewsID="28212" style="background-image:url(https://static.techno-science.net/graphisme/discussion.png);"></div></a></div><a href="https://www.techno-science.net/actualite/jeux-video-dela-cette-limite-tout-va-mal-brutal-N28212.html"><div class="lien">🎮 Jeux vidéo: au delà de cette limite, tout va mal, et c'est brutal</div></a> <div class="entete"><span class="dateRelative" data-timestamp="1770015603000"></span></div> </div> </div> <div class="titres parite1" style="min-height:110px"> <a href="https://www.techno-science.net/actualite/ancien-vaccin-contre-cancer-incompris-epoque-montre-efficacite-redoutable-N28211.html" aria-label="miniature"> <div class="miniature" style="width:110px; 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height:110px; overflow:hidden; position:relative;"> <picture> <source srcset='https://static.techno-science.net/illustrationWebp-mini/Libre/2026/02/02/uO6GIQr2Sl609-fDPXXCKw-2k.jpg' type='image/webp'> <img src='https://static.techno-science.net/illustration-mini/Libre/2026/02/02/uO6GIQr2Sl609-fDPXXCKw-2k.jpg' alt="miniature" style="width: 100%; height: 100%; object-fit: cover; object-position: center;" loading='lazy'> </picture> </div> </a> <div class="lienTitre"> <div class="entete2"><a href="https://www.techno-science.net/forum/viewtopic.php?t=71443#num1" target="_blank" aria-label="Forum"><div class="iconeCommentaires" nbCommentairesNewsID="28210" style="background-image:url(https://static.techno-science.net/graphisme/discussion.png);"></div></a></div><a href="https://www.techno-science.net/actualite/lune-aussi-massive-qu-planete-geante-N28210.html"><div class="lien">🪐 Une lune aussi massive qu'une planète géante ?</div></a> <div class="entete"><span class="dateRelative" data-timestamp="1770008408000"></span></div> </div> </div> <div class="titres parite1" style="min-height:110px"> <a href="https://www.techno-science.net/actualite/antarctique-plus-forte-anomalie-gravitationnelle-terre-N28209.html" aria-label="miniature"> <div class="miniature" style="width:110px; height:110px; overflow:hidden; position:relative;"> <picture> <source srcset='https://static.techno-science.net/illustrationWebp-mini/Libre/2026/01/26/visuel-article-terre-1571x711.jpg' type='image/webp'> <img src='https://static.techno-science.net/illustration-mini/Libre/2026/01/26/visuel-article-terre-1571x711.jpg' alt="miniature" style="width: 100%; height: 100%; object-fit: cover; object-position: center;" loading='lazy'> </picture> </div> </a> <div class="lienTitre"> <div class="entete2"><a href="https://www.techno-science.net/forum/viewtopic.php?t=71442#num1" target="_blank" aria-label="Forum"><div class="iconeCommentaires" nbCommentairesNewsID="28209" style="background-image:url(https://static.techno-science.net/graphisme/discussion.png);"></div></a></div><a href="https://www.techno-science.net/actualite/antarctique-plus-forte-anomalie-gravitationnelle-terre-N28209.html"><div class="lien">🌍 Sous l'Antarctique, la plus forte anomalie gravitationnelle de la Terre</div></a> <div class="entete"><span class="dateRelative" data-timestamp="1770008404000"></span></div> </div> </div> <div class="titres pub" lazyload="view"><!--lazy <ins class="adsbygoogle" style="display:block" data-ad-format="fluid" data-ad-layout-key="-h1+16-52-fv+1bz" data-ad-client="ca-pub-6990544335324031" data-ad-slot="3794245011"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script> lazy--></div> <div class="titres parite0" style="min-height:110px"> <a href="https://www.techno-science.net/actualite/astronomes-observent-nombreuses-collisions-planetaires-N28208.html" aria-label="miniature"> <div class="miniature" style="width:110px; height:110px; overflow:hidden; position:relative;"> <picture> <source srcset='https://static.techno-science.net/illustrationWebp-mini/Source/SC/2026/01/31/bVh55HcGedfdi9nRWvYoxa-1600-80.png' type='image/webp'> <img src='https://static.techno-science.net/illustration-mini/Source/SC/2026/01/31/bVh55HcGedfdi9nRWvYoxa-1600-80.png' alt="miniature" style="width: 100%; height: 100%; object-fit: cover; object-position: center;" loading='lazy'> </picture> </div> </a> <div class="lienTitre"> <div class="entete2"><a href="https://www.techno-science.net/forum/viewtopic.php?t=71441#num1" target="_blank" aria-label="Forum"><div class="iconeCommentaires" nbCommentairesNewsID="28208" style="background-image:url(https://static.techno-science.net/graphisme/discussion.png);"></div></a></div><a href="https://www.techno-science.net/actualite/astronomes-observent-nombreuses-collisions-planetaires-N28208.html"><div class="lien">🪐 Des astronomes observent de nombreuses collisions planétaires</div></a> <div class="entete"><span class="dateRelative" data-timestamp="1769929204000"></span></div> </div> </div> <div class="titres parite1" style="min-height:110px"> <a href="https://www.techno-science.net/actualite/vers-nouveaux-traitements-maladies-auto-immunes-N28207.html" aria-label="miniature"> <div class="miniature" style="width:110px; height:110px; overflow:hidden; position:relative;"> <picture> <source srcset='https://static.techno-science.net/illustrationWebp-mini/Source/Universite-Laval/2026/01/13/732a922f-1e4b-4252-b4f6-2cc91b102fdb.jpg' type='image/webp'> <img src='https://static.techno-science.net/illustration-mini/Source/Universite-Laval/2026/01/13/732a922f-1e4b-4252-b4f6-2cc91b102fdb.jpg' alt="miniature" style="width: 100%; height: 100%; object-fit: cover; object-position: center;" loading='lazy'> </picture> </div> </a> <div class="lienTitre"> <div class="entete2"><a href="https://www.techno-science.net/forum/viewtopic.php?t=71440#num1" target="_blank" aria-label="Forum"><div class="iconeCommentaires" nbCommentairesNewsID="28207" style="background-image:url(https://static.techno-science.net/graphisme/discussion.png);"></div></a></div><a href="https://www.techno-science.net/actualite/vers-nouveaux-traitements-maladies-auto-immunes-N28207.html"><div class="lien">💊 Vers de nouveaux traitements pour les maladies auto-immunes</div></a> <div class="entete"><span class="dateRelative" data-timestamp="1769922005000"></span></div> </div> </div> <div class="titres parite0" style="min-height:110px"> <a href="https://www.techno-science.net/actualite/objet-interstellaire-3i-atlas-refait-parler-lui-avec-observations-tess-N28206.html" aria-label="miniature"> <div class="miniature" style="width:110px; height:110px; overflow:hidden; position:relative;"> <picture> <source srcset='https://static.techno-science.net/illustrationWebp-mini/Source/SC/2026/01/29/VXDG9MtMBkCTTQdEdEtmej-1920-80.jpg' type='image/webp'> <img src='https://static.techno-science.net/illustration-mini/Source/SC/2026/01/29/VXDG9MtMBkCTTQdEdEtmej-1920-80.jpg' alt="miniature" style="width: 100%; height: 100%; object-fit: cover; object-position: center;" loading='lazy'> </picture> </div> </a> <div class="lienTitre"> <div class="entete2"><a href="https://www.techno-science.net/forum/viewtopic.php?t=71439#num1" target="_blank" aria-label="Forum"><div class="iconeCommentaires" nbCommentairesNewsID="28206" style="background-image:url(https://static.techno-science.net/graphisme/discussion.png);"></div></a></div><a href="https://www.techno-science.net/actualite/objet-interstellaire-3i-atlas-refait-parler-lui-avec-observations-tess-N28206.html"><div class="lien">🛰️ L'objet interstellaire 3I/ATLAS refait parler de lui avec des observations de TESS</div></a> <div class="entete"><span class="dateRelative" data-timestamp="1769922004000"></span></div> </div> </div> <div class="titres parite1" style="min-height:110px"> <a href="https://www.techno-science.net/actualite/transport-pierres-stonehenge-hypothese-invalidee-par-science-N28205.html" aria-label="miniature"> <div class="miniature" style="width:110px; height:110px; overflow:hidden; position:relative;"> <picture> <source srcset='https://static.techno-science.net/illustrationWebp-mini/Libre/PXB/72/stonehenge-7289389-1280.jpg' type='image/webp'> <img src='https://static.techno-science.net/illustration-mini/Libre/PXB/72/stonehenge-7289389-1280.jpg' alt="miniature" style="width: 100%; height: 100%; object-fit: cover; object-position: center;" loading='lazy'> </picture> </div> </a> <div class="lienTitre"> <div class="entete2"><a href="https://www.techno-science.net/forum/viewtopic.php?t=71437#num1" target="_blank" aria-label="Forum"><div class="iconeCommentaires" nbCommentairesNewsID="28205" style="background-image:url(https://static.techno-science.net/graphisme/discussion.png);">1</div></a></div><a href="https://www.techno-science.net/actualite/transport-pierres-stonehenge-hypothese-invalidee-par-science-N28205.html"><div class="lien">🪨 Transport des pierres de Stonehenge: une hypothèse invalidée par la science</div></a> <div class="entete"><span class="dateRelative" data-timestamp="1769842804000"></span></div> </div> </div> <div class="titres parite0" style="min-height:110px"> <a href="https://www.techno-science.net/actualite/atterrissage-spectaculaire-ventre-avion-recherche-nasa-N28204.html" aria-label="miniature"> <div class="miniature" style="width:110px; height:110px; overflow:hidden; position:relative;"> <picture> <source srcset='https://static.techno-science.net/illustrationWebp-mini/Libre/2026/01/31/d5d2e7a3-ba3b-43d5-9b4d-340ee6077a9b.jpg' type='image/webp'> <img src='https://static.techno-science.net/illustration-mini/Libre/2026/01/31/d5d2e7a3-ba3b-43d5-9b4d-340ee6077a9b.jpg' alt="miniature" style="width: 100%; height: 100%; object-fit: cover; object-position: center;" loading='lazy'> </picture> </div> </a> <div class="lienTitre"> <div class="entete2"><a href="https://www.techno-science.net/forum/viewtopic.php?t=71436#num1" target="_blank" aria-label="Forum"><div class="iconeCommentaires" nbCommentairesNewsID="28204" style="background-image:url(https://static.techno-science.net/graphisme/discussion.png);"></div></a></div><a href="https://www.techno-science.net/actualite/atterrissage-spectaculaire-ventre-avion-recherche-nasa-N28204.html"><div class="lien">🛬 Atterrissage spectaculaire sur le ventre pour un avion de recherche de la NASA</div></a> <div class="entete"><span class="dateRelative" data-timestamp="1769835605000"></span></div> </div> </div> <div class="titres pub" lazyload="view"><!--lazy <ins class="adsbygoogle" style="display:block" data-ad-format="fluid" data-ad-layout-key="-h1+16-52-fv+1bz" data-ad-client="ca-pub-6990544335324031" data-ad-slot="3794245011"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script> lazy--></div> <div class="titres parite1" style="min-height:110px"> <a href="https://www.techno-science.net/actualite/schizophrenie-role-inattendu-cervelet-N28203.html" aria-label="miniature"> <div class="miniature" style="width:110px; height:110px; overflow:hidden; position:relative;"> <picture> <source srcset='https://static.techno-science.net/illustrationWebp-mini/Libre/PXB/49/woman-4982957-1280.jpg' type='image/webp'> <img src='https://static.techno-science.net/illustration-mini/Libre/PXB/49/woman-4982957-1280.jpg' alt="miniature" style="width: 100%; height: 100%; object-fit: cover; object-position: center;" loading='lazy'> </picture> </div> </a> <div class="lienTitre"> <div class="entete2"><a href="https://www.techno-science.net/forum/viewtopic.php?t=71435#num1" target="_blank" aria-label="Forum"><div class="iconeCommentaires" nbCommentairesNewsID="28203" style="background-image:url(https://static.techno-science.net/graphisme/discussion.png);"></div></a></div><a href="https://www.techno-science.net/actualite/schizophrenie-role-inattendu-cervelet-N28203.html"><div class="lien">🧠 Schizophrénie: le rôle inattendu du cervelet</div></a> <div class="entete"><span class="dateRelative" data-timestamp="1769835602000"></span></div> </div> </div> <div class="titres parite0" style="min-height:110px"> <a href="https://www.techno-science.net/actualite/nouvelle-phase-eau-decouverte-plus-repandue-notre-systeme-solaire-N28202.html" aria-label="miniature"> <div class="miniature" style="width:110px; height:110px; overflow:hidden; position:relative;"> <picture> <source srcset='https://static.techno-science.net/illustrationWebp-mini/Source/STD/2026/01/25/Microscopic-Structure-Superionic-Water-Schematic-2048x1152.jpg' type='image/webp'> <img src='https://static.techno-science.net/illustration-mini/Source/STD/2026/01/25/Microscopic-Structure-Superionic-Water-Schematic-2048x1152.jpg' alt="miniature" style="width: 100%; height: 100%; object-fit: cover; object-position: center;" loading='lazy'> </picture> </div> </a> <div class="lienTitre"> <div class="entete2"><a href="https://www.techno-science.net/forum/viewtopic.php?t=71426#num1" target="_blank" aria-label="Forum"><div class="iconeCommentaires" nbCommentairesNewsID="28202" style="background-image:url(https://static.techno-science.net/graphisme/discussion.png);"></div></a></div><a href="https://www.techno-science.net/actualite/nouvelle-phase-eau-decouverte-plus-repandue-notre-systeme-solaire-N28202.html"><div class="lien">💧 Une nouvelle phase de l'eau découverte, et c'est la plus répandue dans notre Système solaire</div></a> <div class="entete"><span class="dateRelative" data-timestamp="1769774408000"></span></div> </div> </div> <div class="titres parite1" style="min-height:110px"> <a href="https://www.techno-science.net/actualite/pourquoi-parlons-nous-maniere-fluide-sans-effort-N28201.html" aria-label="miniature"> <div class="miniature" style="width:110px; height:110px; overflow:hidden; position:relative;"> <picture> <source srcset='https://static.techno-science.net/illustrationWebp-mini/Libre/PXB/86/woman-8676532-1280.jpg' type='image/webp'> <img src='https://static.techno-science.net/illustration-mini/Libre/PXB/86/woman-8676532-1280.jpg' alt="miniature" style="width: 100%; height: 100%; object-fit: cover; object-position: center;" loading='lazy'> </picture> </div> </a> <div class="lienTitre"> <div class="entete2"><a href="https://www.techno-science.net/forum/viewtopic.php?t=71425#num1" target="_blank" aria-label="Forum"><div class="iconeCommentaires" nbCommentairesNewsID="28201" style="background-image:url(https://static.techno-science.net/graphisme/discussion.png);"></div></a></div><a href="https://www.techno-science.net/actualite/pourquoi-parlons-nous-maniere-fluide-sans-effort-N28201.html"><div class="lien">💬 Pourquoi parlons-nous de manière fluide sans effort ?</div></a> <div class="entete"><span class="dateRelative" data-timestamp="1769774403000"></span></div> </div> </div> <div class="titres parite0" style="min-height:110px"> <a href="https://www.techno-science.net/actualite/zone-habitable-nous-cherchions-vie-extraterrestre-mauvais-endroit-N28200.html" aria-label="miniature"> <div class="miniature" style="width:110px; 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</script> lazy--></div> <div class="titres parite1" style="min-height:110px"> <a href="https://www.techno-science.net/actualite/cannabis-contre-douleur-finalement-efficace-pas-N28183.html" aria-label="miniature"> <div class="miniature" style="width:110px; height:110px; overflow:hidden; position:relative;"> <picture> <source srcset='https://static.techno-science.net/illustrationWebp-mini/Libre/PXB/36/marijuana-3678222-1280.jpg' type='image/webp'> <img src='https://static.techno-science.net/illustration-mini/Libre/PXB/36/marijuana-3678222-1280.jpg' alt="miniature" style="width: 100%; height: 100%; object-fit: cover; object-position: center;" loading='lazy'> </picture> </div> </a> <div class="lienTitre"> <div class="entete2"><a href="https://www.techno-science.net/forum/viewtopic.php?t=71386#num1" target="_blank" aria-label="Forum"><div class="iconeCommentaires" nbCommentairesNewsID="28183" style="background-image:url(https://static.techno-science.net/graphisme/discussion.png);">2</div></a></div><a href="https://www.techno-science.net/actualite/cannabis-contre-douleur-finalement-efficace-pas-N28183.html"><div class="lien">🌿 La cannabis contre la douleur: finalement, efficace ou pas ?</div></a> <div class="entete"><span class="dateRelative" data-timestamp="1769515201000"></span></div> </div> </div> <div class="titres parite0" style="min-height:110px"> <a href="https://www.techno-science.net/actualite/ice-memory-sanctuaire-glace-siecles-venir-N28182.html" aria-label="miniature"> <div class="miniature" style="width:110px; 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height:110px; overflow:hidden; position:relative;"> <img src='https://static.techno-science.net/illustration-mini/Source/CNRS-INSIS/2026/01/12/Vector-field-800Hz.gif' alt="miniature" style="width: 100%; height: 100%; object-fit: cover; object-position: center;" loading='lazy'> </div> </a> <div class="lienTitre"> <div class="entete2"><a href="https://www.techno-science.net/forum/viewtopic.php?t=71384#num1" target="_blank" aria-label="Forum"><div class="iconeCommentaires" nbCommentairesNewsID="28181" style="background-image:url(https://static.techno-science.net/graphisme/discussion.png);"></div></a></div><a href="https://www.techno-science.net/actualite/metamateriaux-panneau-absorbe-diffuse-son-N28181.html"><div class="lien">🔊 Métamatériaux: un panneau qui absorbe et diffuse le son</div></a> <div class="entete"><span class="dateRelative" data-timestamp="1769497203000"></span></div> </div> </div> <div class="titres parite0" style="min-height:110px"> <a href="https://www.techno-science.net/actualite/matiere-noire-ultrarelativiste-hypothese-cosmologique-innovante-N28180.html" aria-label="miniature"> <div class="miniature" style="width:110px; height:110px; overflow:hidden; position:relative;"> <picture> <source srcset='https://static.techno-science.net/illustrationWebp-mini/Libre/PXB/79/explosion-7910812-1280.jpg' type='image/webp'> <img src='https://static.techno-science.net/illustration-mini/Libre/PXB/79/explosion-7910812-1280.jpg' alt="miniature" style="width: 100%; height: 100%; object-fit: cover; object-position: center;" loading='lazy'> </picture> </div> </a> <div class="lienTitre"> <div class="entete2"><a href="https://www.techno-science.net/forum/viewtopic.php?t=71383#num1" target="_blank" aria-label="Forum"><div class="iconeCommentaires" nbCommentairesNewsID="28180" style="background-image:url(https://static.techno-science.net/graphisme/discussion.png);">1</div></a></div><a href="https://www.techno-science.net/actualite/matiere-noire-ultrarelativiste-hypothese-cosmologique-innovante-N28180.html"><div class="lien">⚛️ La matière noire ultrarelativiste: une hypothèse cosmologique innovante</div></a> <div class="entete"><span class="dateRelative" data-timestamp="1769490005000"></span></div> </div> </div> <div class="titres parite1" style="min-height:110px"> <a href="https://www.techno-science.net/actualite/plus-80-ans-memoire-exceptionnelle-comment-possible-N28179.html" aria-label="miniature"> <div class="miniature" style="width:110px; height:110px; overflow:hidden; position:relative;"> <picture> <source srcset='https://static.techno-science.net/illustrationWebp-mini/Libre/PXB/33/older-adult-3358587-1280.jpg' type='image/webp'> <img src='https://static.techno-science.net/illustration-mini/Libre/PXB/33/older-adult-3358587-1280.jpg' alt="miniature" style="width: 100%; height: 100%; object-fit: cover; object-position: center;" loading='lazy'> </picture> </div> </a> <div class="lienTitre"> <div class="entete2"><a href="https://www.techno-science.net/forum/viewtopic.php?t=71382#num1" target="_blank" aria-label="Forum"><div class="iconeCommentaires" nbCommentairesNewsID="28179" style="background-image:url(https://static.techno-science.net/graphisme/discussion.png);"></div></a></div><a href="https://www.techno-science.net/actualite/plus-80-ans-memoire-exceptionnelle-comment-possible-N28179.html"><div class="lien">🧠 Plus de 80 ans et une mémoire exceptionnelle: comment est-ce possible ?</div></a> <div class="entete"><span class="dateRelative" data-timestamp="1769490003000"></span></div> </div> </div> <div class="titres pub" lazyload="view"><!--lazy <ins class="adsbygoogle" style="display:block" data-ad-format="fluid" data-ad-layout-key="-h1+16-52-fv+1bz" data-ad-client="ca-pub-6990544335324031" data-ad-slot="3794245011"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script> lazy--></div> <div class="titres parite0" style="min-height:110px"> <a href="https://www.techno-science.net/actualite/decouverte-etoile-morte-sillonne-univers-comme-bateau-fend-eau-N28178.html" aria-label="miniature"> <div class="miniature" style="width:110px; height:110px; overflow:hidden; position:relative;"> <picture> <source srcset='https://static.techno-science.net/illustrationWebp-mini/Source/SC/2026/01/18/26aztjBm3WqT2UgnHmtURe-1200-80.png' type='image/webp'> <img src='https://static.techno-science.net/illustration-mini/Source/SC/2026/01/18/26aztjBm3WqT2UgnHmtURe-1200-80.png' alt="miniature" style="width: 100%; height: 100%; object-fit: cover; object-position: center;" loading='lazy'> </picture> </div> </a> <div class="lienTitre"> <div class="entete2"><a href="https://www.techno-science.net/forum/viewtopic.php?t=71367#num1" target="_blank" aria-label="Forum"><div class="iconeCommentaires" nbCommentairesNewsID="28178" style="background-image:url(https://static.techno-science.net/graphisme/discussion.png);"></div></a></div><a href="https://www.techno-science.net/actualite/decouverte-etoile-morte-sillonne-univers-comme-bateau-fend-eau-N28178.html"><div class="lien">🌠 Découverte d'une étoile morte qui sillonne l'Univers comme un bateau fend l'eau</div></a> <div class="entete"><span class="dateRelative" data-timestamp="1769428811000"></span></div> </div> </div> <div class="titres parite1" style="min-height:110px"> <a href="https://www.techno-science.net/actualite/cet-iceberg-derivant-depuis-40-ans-change-subitement-couleur-pourquoi-N28177.html" aria-label="miniature"> <div class="miniature" style="width:110px; height:110px; overflow:hidden; position:relative;"> <picture> <source srcset='https://static.techno-science.net/illustrationWebp-mini/Source/SC/2026/01/25/vistNBPkDoah5gyH9adVCg-1920-80.jpg' type='image/webp'> <img src='https://static.techno-science.net/illustration-mini/Source/SC/2026/01/25/vistNBPkDoah5gyH9adVCg-1920-80.jpg' alt="miniature" style="width: 100%; height: 100%; object-fit: cover; object-position: center;" loading='lazy'> </picture> </div> </a> <div class="lienTitre"> <div class="entete2"><a href="https://www.techno-science.net/forum/viewtopic.php?t=71366#num1" target="_blank" aria-label="Forum"><div class="iconeCommentaires" nbCommentairesNewsID="28177" style="background-image:url(https://static.techno-science.net/graphisme/discussion.png);"></div></a></div><a href="https://www.techno-science.net/actualite/cet-iceberg-derivant-depuis-40-ans-change-subitement-couleur-pourquoi-N28177.html"><div class="lien">❄️ Cet iceberg dérivant depuis 40 ans change subitement de couleur: pourquoi ?</div></a> <div class="entete"><span class="dateRelative" data-timestamp="1769428803000"></span></div> </div> </div> <div class="titres parite0" style="min-height:110px"> <a href="https://www.techno-science.net/actualite/chine-depose-demande-lancer-constellation-200-000-satellites-N28176.html" aria-label="miniature"> <div class="miniature" style="width:110px; height:110px; overflow:hidden; position:relative;"> <picture> <source srcset='https://static.techno-science.net/illustrationWebp-mini/Libre/2026/01/26/fe5d5edb-5b41-426b-bd88-7a401ab076b2-jpg.jpg' type='image/webp'> <img src='https://static.techno-science.net/illustration-mini/Libre/2026/01/26/fe5d5edb-5b41-426b-bd88-7a401ab076b2-jpg.jpg' alt="miniature" style="width: 100%; height: 100%; object-fit: cover; object-position: center;" loading='lazy'> </picture> </div> </a> <div class="lienTitre"> <div class="entete2"><a href="https://www.techno-science.net/forum/viewtopic.php?t=71365#num1" target="_blank" aria-label="Forum"><div class="iconeCommentaires" nbCommentairesNewsID="28176" style="background-image:url(https://static.techno-science.net/graphisme/discussion.png);"></div></a></div><a href="https://www.techno-science.net/actualite/chine-depose-demande-lancer-constellation-200-000-satellites-N28176.html"><div class="lien">🛰️ La Chine dépose une demande pour lancer une constellation de... 200 000 satellites !</div></a> <div class="entete"><span class="dateRelative" data-timestamp="1769410806000"></span></div> </div> </div> <div class="titres parite1" style="min-height:110px"> <a href="https://www.techno-science.net/actualite/fin-mythe-non-cerveau-arrete-pas-son-developpement-25-ans-quel-age-alors-N28175.html" aria-label="miniature"> <div class="miniature" style="width:110px; height:110px; overflow:hidden; position:relative;"> <picture> <source srcset='https://static.techno-science.net/illustrationWebp-mini/Libre/2025/09/24/brain-1845962-960-720.jpg' type='image/webp'> <img src='https://static.techno-science.net/illustration-mini/Libre/2025/09/24/brain-1845962-960-720.jpg' alt="miniature" style="width: 100%; height: 100%; object-fit: cover; object-position: center;" loading='lazy'> </picture> </div> </a> <div class="lienTitre"> <div class="entete2"><a href="https://www.techno-science.net/forum/viewtopic.php?t=71364#num1" target="_blank" aria-label="Forum"><div class="iconeCommentaires" nbCommentairesNewsID="28175" style="background-image:url(https://static.techno-science.net/graphisme/discussion.png);"></div></a></div><a href="https://www.techno-science.net/actualite/fin-mythe-non-cerveau-arrete-pas-son-developpement-25-ans-quel-age-alors-N28175.html"><div class="lien">🧠 Fin du mythe: non, le cerveau n'arrête pas son développement à 25 ans ! A quel âge alors ?</div></a> <div class="entete"><span class="dateRelative" data-timestamp="1769410803000"></span></div> </div> </div> <div class="titres parite0" style="min-height:110px"> <a href="https://www.techno-science.net/actualite/sens-science-compte-plus-20-notre-corps-N28174.html" aria-label="miniature"> <div class="miniature" style="width:110px; height:110px; overflow:hidden; position:relative;"> <picture> <source srcset='https://static.techno-science.net/illustrationWebp-mini/Libre/PXB/12/person-1270953-1280.jpg' type='image/webp'> <img src='https://static.techno-science.net/illustration-mini/Libre/PXB/12/person-1270953-1280.jpg' alt="miniature" style="width: 100%; height: 100%; object-fit: cover; object-position: center;" loading='lazy'> </picture> </div> </a> <div class="lienTitre"> <div class="entete2"><a href="https://www.techno-science.net/forum/viewtopic.php?t=71363#num1" target="_blank" aria-label="Forum"><div class="iconeCommentaires" nbCommentairesNewsID="28174" style="background-image:url(https://static.techno-science.net/graphisme/discussion.png);"></div></a></div><a href="https://www.techno-science.net/actualite/sens-science-compte-plus-20-notre-corps-N28174.html"><div class="lien">🧠 5 sens ? La science en compte plus de 20 dans notre corps</div></a> <div class="entete"><span class="dateRelative" data-timestamp="1769403603000"></span></div> </div> </div> <div class="titres pub" lazyload="view"><!--lazy <ins class="adsbygoogle" style="display:block" data-ad-format="fluid" data-ad-layout-key="-h1+16-52-fv+1bz" data-ad-client="ca-pub-6990544335324031" data-ad-slot="3794245011"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script> lazy--></div> <div class="titres parite1" style="min-height:110px"> <a href="https://www.techno-science.net/actualite/nanomateriaux-intelligents-adaptent-lumiere-N28173.html" aria-label="miniature"> <div class="miniature" style="width:110px; height:110px; overflow:hidden; position:relative;"> <picture> <source srcset='https://static.techno-science.net/illustrationWebp-mini/Libre/2026/01/20/41467-2025-65338-Fig4-HTML.png' type='image/webp'> <img src='https://static.techno-science.net/illustration-mini/Libre/2026/01/20/41467-2025-65338-Fig4-HTML.png' alt="miniature" style="width: 100%; height: 100%; object-fit: cover; object-position: center;" loading='lazy'> </picture> </div> </a> <div class="lienTitre"> <div class="entete2"><a href="https://www.techno-science.net/forum/viewtopic.php?t=71362#num1" target="_blank" aria-label="Forum"><div class="iconeCommentaires" nbCommentairesNewsID="28173" style="background-image:url(https://static.techno-science.net/graphisme/discussion.png);"></div></a></div><a href="https://www.techno-science.net/actualite/nanomateriaux-intelligents-adaptent-lumiere-N28173.html"><div class="lien">🔦 Des nanomatériaux "intelligents" qui s'adaptent à la lumière</div></a> <div class="entete"><span class="dateRelative" data-timestamp="1769403602000"></span></div> </div> </div> <div class="titres parite0" style="min-height:110px"> <a href="https://www.techno-science.net/actualite/observation-inedite-jets-torsades-emis-par-couple-trous-noirs-supermassifs-N28172.html" aria-label="miniature"> <div class="miniature" style="width:110px; height:110px; overflow:hidden; 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