{"id":20601,"date":"2026-04-01T07:11:33","date_gmt":"2026-04-01T06:11:33","guid":{"rendered":"https:\/\/lyonelkaufmann.ch\/histoire\/?p=20601"},"modified":"2026-04-01T07:16:23","modified_gmt":"2026-04-01T06:16:23","slug":"exposition-la-figure-de-la-terre-un-debat-scientifique-franco-anglais-xvii%e1%b5%89-xxi%e1%b5%89-siecle","status":"publish","type":"post","link":"https:\/\/lyonelkaufmann.ch\/histoire\/2026\/04\/01\/exposition-la-figure-de-la-terre-un-debat-scientifique-franco-anglais-xvii%e1%b5%89-xxi%e1%b5%89-siecle\/","title":{"rendered":"Exposition : La figure de la Terre. Un d\u00e9bat scientifique franco-anglais (XVII\u1d49-XXI\u1d49 si\u00e8cle)"},"content":{"rendered":"\n<p>L\u2019Acad\u00e9mie des sciences et la Royal Society pr\u00e9sentent, du 1er avril au 20 juin 2026, l\u2019exposition \u00ab&nbsp;<a href=\"https:\/\/www.academie-sciences.fr\/exposition-la-figure-de-la-terre-un-debat-scientifique-franco-anglais-xvii-xxi-siecle\" target=\"_blank\" rel=\"noreferrer noopener\">La figure de la Terre. Un d\u00e9bat scientifique franco-anglais (XVII\u1d49-XXI\u1d49 si\u00e8cle)<\/a>&nbsp;\u00bb, dans les locaux de la biblioth\u00e8que Mazarine, au coeur de l\u2019Institut de France. Con\u00e7ue par l\u2019Acad\u00e9mie des sciences et la Royal Society, avec le concours des biblioth\u00e8ques Mazarine et de l\u2019Institut de France, l&rsquo;exposition&nbsp;retrace plus de trois si\u00e8cles de d\u00e9bats, d\u2019exp\u00e9riences et de coop\u00e9rations autour d\u2019une question fondamentale : quelle est la forme exacte de la Terre ?&nbsp;<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><a href=\"https:\/\/lyonelkaufmann.ch\/histoire\/2026\/04\/01\/exposition-la-figure-de-la-terre-un-debat-scientifique-franco-anglais-xvii%e1%b5%89-xxi%e1%b5%89-siecle\/bafkreihdut6jrlnafndsvzkzk7rtpsanb2gsfdjo52urpgeqg7tsfb53ra\/\" target=\"_blank\" rel=\" noreferrer noopener\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"512\" data-attachment-id=\"20602\" data-permalink=\"https:\/\/lyonelkaufmann.ch\/histoire\/2026\/04\/01\/exposition-la-figure-de-la-terre-un-debat-scientifique-franco-anglais-xvii%e1%b5%89-xxi%e1%b5%89-siecle\/bafkreihdut6jrlnafndsvzkzk7rtpsanb2gsfdjo52urpgeqg7tsfb53ra\/\" data-orig-file=\"https:\/\/i0.wp.com\/lyonelkaufmann.ch\/histoire\/wp-content\/uploads\/2026\/04\/bafkreihdut6jrlnafndsvzkzk7rtpsanb2gsfdjo52urpgeqg7tsfb53ra.webp?fit=993%2C727&amp;ssl=1\" data-orig-size=\"993,727\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"bafkreihdut6jrlnafndsvzkzk7rtpsanb2gsfdjo52urpgeqg7tsfb53ra\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/lyonelkaufmann.ch\/histoire\/wp-content\/uploads\/2026\/04\/bafkreihdut6jrlnafndsvzkzk7rtpsanb2gsfdjo52urpgeqg7tsfb53ra.webp?fit=700%2C512&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/lyonelkaufmann.ch\/histoire\/wp-content\/uploads\/2026\/04\/bafkreihdut6jrlnafndsvzkzk7rtpsanb2gsfdjo52urpgeqg7tsfb53ra.webp?resize=700%2C512&#038;ssl=1\" alt=\"\" class=\"wp-image-20602\" srcset=\"https:\/\/i0.wp.com\/lyonelkaufmann.ch\/histoire\/wp-content\/uploads\/2026\/04\/bafkreihdut6jrlnafndsvzkzk7rtpsanb2gsfdjo52urpgeqg7tsfb53ra.webp?resize=700%2C512&amp;ssl=1 700w, https:\/\/i0.wp.com\/lyonelkaufmann.ch\/histoire\/wp-content\/uploads\/2026\/04\/bafkreihdut6jrlnafndsvzkzk7rtpsanb2gsfdjo52urpgeqg7tsfb53ra.webp?resize=300%2C220&amp;ssl=1 300w, https:\/\/i0.wp.com\/lyonelkaufmann.ch\/histoire\/wp-content\/uploads\/2026\/04\/bafkreihdut6jrlnafndsvzkzk7rtpsanb2gsfdjo52urpgeqg7tsfb53ra.webp?resize=768%2C562&amp;ssl=1 768w, https:\/\/i0.wp.com\/lyonelkaufmann.ch\/histoire\/wp-content\/uploads\/2026\/04\/bafkreihdut6jrlnafndsvzkzk7rtpsanb2gsfdjo52urpgeqg7tsfb53ra.webp?w=993&amp;ssl=1 993w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/a><figcaption class=\"wp-element-caption\">Exposition Royal Society\/Acad\u00e9mie des sciences, Londres, 2024 :<br><a href=\"https:\/\/royalsociety.org\/blog\/2024\/08\/figuring-the-earth\/\" target=\"_blank\" rel=\"noreferrer noopener\">Exhibit: Figuring the Earth &#8211; perspectives from the Acad\u00e9mie des Sciences and the Royal Society<\/a><br><a href=\"https:\/\/www.academie-sciences.fr\/sites\/default\/files\/2026-02\/DP_expo%20Figure%20de%20la%20Terre_23_02.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">T\u00e9l\u00e9charger le dossier de presse<\/a><\/figcaption><\/figure>\n<\/div>\n\n\n<p>Cette exposition propose une travers\u00e9e historique et scientifique de plus de trois si\u00e8cles de recherches consacr\u00e9es \u00e0 la mesure, la mod\u00e9lisation et la compr\u00e9hension de la forme de notre plan\u00e8te, depuis le XVIIe si\u00e8cle jusqu\u2019\u00e0 l\u2019\u00e8re spatiale. Depuis l\u2019Antiquit\u00e9, on sait que la Terre est, dans ses grandes lignes, une sph\u00e8re. Reste une question essentielle : est-elle l\u00e9g\u00e8rement aplatie aux p\u00f4les, ou bien allong\u00e9e ? Pour r\u00e9pondre \u00e0 cette question, savants, astronomes, math\u00e9maticiens et g\u00e9od\u00e9siens ont \u00e9labor\u00e9 des mod\u00e8les th\u00e9oriques, con\u00e7u des instruments innovants et men\u00e9 de vastes campagnes d\u2019observation \u00e0 travers le monde. L\u2019exposition met en regard des sources exceptionnelles issues essentiellement des collections de l\u2019Acad\u00e9mie des sciences et de la Royal Society, t\u00e9moignant de l\u2019intensit\u00e9 des \u00e9changes scientifiques entre Paris et Londres et du r\u00f4le d\u00e9cisif de la coop\u00e9ration internationale dans la production des savoirs.<\/p>\n\n\n\n<p>Lire la suite : <a href=\"https:\/\/cartonumerique.blogspot.com\/2026\/03\/figure-de-la-Terre.html\" target=\"_blank\" rel=\"noreferrer noopener\">La figure de la Terre. Un d\u00e9bat scientifique franco-anglais (XVII\u1d49-XXI\u1d49 si\u00e8cle)  | Cartographie num\u00e9rique<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>L\u2019Acad\u00e9mie des sciences et la Royal Society pr\u00e9sentent, du 1er avril au 20 juin 2026, l\u2019exposition \u00ab&nbsp;La figure de la Terre. Un d\u00e9bat scientifique franco-anglais (XVII\u1d49-XXI\u1d49 si\u00e8cle)&nbsp;\u00bb, dans les locaux de la biblioth\u00e8que Mazarine, au coeur de l\u2019Institut de France. Con\u00e7ue par l\u2019Acad\u00e9mie des sciences et la Royal Society, avec le concours des biblioth\u00e8ques Mazarine [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":20602,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","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":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[5,11,15,16],"tags":[],"class_list":{"0":"post-20601","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-histoire-savante","8":"category-nouvelles-de-lhistoire","9":"category-outils-enseignement","10":"category-publications","11":"entry"},"jetpack_publicize_connections":[],"featured_image_src":"https:\/\/i0.wp.com\/lyonelkaufmann.ch\/histoire\/wp-content\/uploads\/2026\/04\/bafkreihdut6jrlnafndsvzkzk7rtpsanb2gsfdjo52urpgeqg7tsfb53ra.webp?resize=600%2C400&ssl=1","featured_image_src_square":"https:\/\/i0.wp.com\/lyonelkaufmann.ch\/histoire\/wp-content\/uploads\/2026\/04\/bafkreihdut6jrlnafndsvzkzk7rtpsanb2gsfdjo52urpgeqg7tsfb53ra.webp?resize=600%2C600&ssl=1","author_info":{"display_name":"Lyonel Kaufmann","author_link":"https:\/\/lyonelkaufmann.ch\/histoire\/author\/lyonelk\/"},"jetpack_featured_media_url":"https:\/\/i0.wp.com\/lyonelkaufmann.ch\/histoire\/wp-content\/uploads\/2026\/04\/bafkreihdut6jrlnafndsvzkzk7rtpsanb2gsfdjo52urpgeqg7tsfb53ra.webp?fit=993%2C727&ssl=1","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p1rJVM-5mh","jetpack_likes_enabled":true,"jetpack-related-posts":[{"id":13554,"url":"https:\/\/lyonelkaufmann.ch\/histoire\/2017\/11\/06\/lencyclopedie-de-diderot-et-dalembert-disponible-integralement-en-ligne\/","url_meta":{"origin":20601,"position":0},"title":"L&rsquo;Encyclop\u00e9die de Diderot et d&rsquo;Alembert disponible int\u00e9gralement en ligne","author":"Lyonel Kaufmann","date":"6 novembre 2017","format":false,"excerpt":"Pas moins de 6 ann\u00e9es auront \u00e9t\u00e9 n\u00e9cessaires pour un travail de conservation et de collaboration sans pr\u00e9c\u00e9dent : l\u2019Encyclop\u00e9die de Diderot, d\u2019Alembert et Jaucourt est d\u00e9sormais disponible en ligne sur le site de l\u2019Acad\u00e9mie des Sciences, pour la premi\u00e8re fois enrichie d\u2019un appareil critique in\u00e9dit. Une exposition \u00e0 la\u2026","rel":"","context":"Dans &quot;Humanit\u00e9s Digitales&quot;","block_context":{"text":"Humanit\u00e9s Digitales","link":"https:\/\/lyonelkaufmann.ch\/histoire\/category\/humanites-digitales\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/lyonelkaufmann.ch\/histoire\/wp-content\/uploads\/2017\/11\/Image-06.11.17-18-25.04e7f62ef8564a28b9b4a00106daac27.jpeg?fit=1200%2C575&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/lyonelkaufmann.ch\/histoire\/wp-content\/uploads\/2017\/11\/Image-06.11.17-18-25.04e7f62ef8564a28b9b4a00106daac27.jpeg?fit=1200%2C575&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/lyonelkaufmann.ch\/histoire\/wp-content\/uploads\/2017\/11\/Image-06.11.17-18-25.04e7f62ef8564a28b9b4a00106daac27.jpeg?fit=1200%2C575&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/lyonelkaufmann.ch\/histoire\/wp-content\/uploads\/2017\/11\/Image-06.11.17-18-25.04e7f62ef8564a28b9b4a00106daac27.jpeg?fit=1200%2C575&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/lyonelkaufmann.ch\/histoire\/wp-content\/uploads\/2017\/11\/Image-06.11.17-18-25.04e7f62ef8564a28b9b4a00106daac27.jpeg?fit=1200%2C575&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":20416,"url":"https:\/\/lyonelkaufmann.ch\/histoire\/2025\/09\/16\/colloque-infoclio-ch-2025-open-science-in-history-ouvrir-les-sciences-des-lumieres-a-lintelligence-articifielle-21-11-2025\/","url_meta":{"origin":20601,"position":1},"title":"Colloque infoclio.ch 2025: Open Science in History. Ouvrir les sciences des Lumi\u00e8res \u00e0 l&rsquo;intelligence articifielle (21.11.2025)","author":"Lyonel Kaufmann","date":"16 septembre 2025","format":false,"excerpt":"L\u2019Open Science met les chercheuses et chercheurs au-devant de choix toujours plus complexes relatifs au partage de leurs r\u00e9sultats, m\u00e9thodes, outils et donn\u00e9es de recherche. Le colloque infoclio.ch 2025 explore les ant\u00e9c\u00e9dents intellectuels et techniques de la notion d\u2019Open science et discute des enjeux pratiques de sa mise en \u0153uvre\u2026","rel":"","context":"Dans &quot;histodons&quot;","block_context":{"text":"histodons","link":"https:\/\/lyonelkaufmann.ch\/histoire\/category\/humanites-digitales\/histodons\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/lyonelkaufmann.ch\/histoire\/wp-content\/uploads\/2025\/09\/Infoclio2025.png?fit=800%2C1122&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/lyonelkaufmann.ch\/histoire\/wp-content\/uploads\/2025\/09\/Infoclio2025.png?fit=800%2C1122&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/lyonelkaufmann.ch\/histoire\/wp-content\/uploads\/2025\/09\/Infoclio2025.png?fit=800%2C1122&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/lyonelkaufmann.ch\/histoire\/wp-content\/uploads\/2025\/09\/Infoclio2025.png?fit=800%2C1122&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":10921,"url":"https:\/\/lyonelkaufmann.ch\/histoire\/2016\/01\/10\/ecoutez-le-paris-du-xviiie-siecle-cnrs-le-journal\/","url_meta":{"origin":20601,"position":2},"title":"\u00c9coutez le Paris du XVIIIe si\u00e8cle | CNRS Le journal","author":"Lyonel Kaufmann","date":"10 janvier 2016","format":"video","excerpt":"La musicologue Myl\u00e8ne Pardoen a reconstitu\u00e9 l\u2019ambiance sonore du quartier du Grand Ch\u00e2telet \u00e0 Paris, au XVIIIe si\u00e8cle. Pr\u00e9sent\u00e9 au salon de la valorisation en sciences humaines et sociales, \u00e0 la Cit\u00e9 des sciences et de l\u2019industrie, son projet associe historiens et sp\u00e9cialistes de la 3D. https:\/\/youtu.be\/YP__1eHeyo4 Paris comme vous\u2026","rel":"","context":"Dans &quot;Histoire active&quot;","block_context":{"text":"Histoire active","link":"https:\/\/lyonelkaufmann.ch\/histoire\/category\/didactique\/histoire-active\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/img.youtube.com\/vi\/YP__1eHeyo4\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":14063,"url":"https:\/\/lyonelkaufmann.ch\/histoire\/2018\/04\/23\/les-agriculteurs-du-neolithique-ont-coexiste-avec-les-chasseurs-cueilleurs-pendant-des-siecles-les-decouvertes-archeologiques\/","url_meta":{"origin":20601,"position":3},"title":"Les agriculteurs du n\u00e9olithique ont coexist\u00e9 avec les chasseurs-cueilleurs pendant des si\u00e8cles | Les D\u00e9couvertes arch\u00e9ologiques","author":"Lyonel Kaufmann","date":"23 avril 2018","format":false,"excerpt":"Une nouvelle \u00e9tude apporte une r\u00e9ponse \u00e0 une question longuement d\u00e9battue parmi les anthropologues et les g\u00e9n\u00e9ticiens: lorsque les agriculteurs sont arriv\u00e9s en Europe, comment ont-ils r\u00e9agi avec les groupes de chasseurs-cueilleurs existants ? Les chercheurs ont utilis\u00e9 des m\u00e9thodes g\u00e9notypiques de haute r\u00e9solution pour analyser le g\u00e9nome de 180\u2026","rel":"","context":"Dans &quot;Histoire savante&quot;","block_context":{"text":"Histoire savante","link":"https:\/\/lyonelkaufmann.ch\/histoire\/category\/didactique\/histoire-savante\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/lyonelkaufmann.ch\/histoire\/wp-content\/uploads\/2018\/04\/DAF12DAF-BF85-4A14-9822-9C1F6568D42A.80e5cf8e26854206b5151034880ac2d3.jpeg?fit=426%2C319&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":13295,"url":"https:\/\/lyonelkaufmann.ch\/histoire\/2017\/09\/07\/enseigner-avec-le-numerique-lhistoire-des-femmes\/","url_meta":{"origin":20601,"position":4},"title":"Enseigner avec le num\u00e9rique : l&rsquo;histoire des femmes","author":"Lyonel Kaufmann","date":"7 septembre 2017","format":false,"excerpt":"A l\u2019occasion de le rentr\u00e9e scolaire, le bulletin \u00c9du_Num Histoire-g\u00e9ographie, No 38 propose une certain nombre de ressources en ligne en relation avec les programmes du cycle 4 invitant \u00e0 enseigner une histoire mixte. Des ressources sont \u00e9galement propos\u00e9s pour les Lyc\u00e9es professionnels. Les programmes de cycle 4 invitent, en\u2026","rel":"","context":"Dans &quot;Nouvelles de l'histoire&quot;","block_context":{"text":"Nouvelles de l'histoire","link":"https:\/\/lyonelkaufmann.ch\/histoire\/category\/nouvelles-de-lhistoire\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/lyonelkaufmann.ch\/histoire\/wp-content\/uploads\/2017\/09\/Image-07.09.17-12-22.38cc6a525e5549bcae8ae77e9cef5f2d.jpeg?fit=500%2C281&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":7600,"url":"https:\/\/lyonelkaufmann.ch\/histoire\/2013\/10\/14\/le-blogging-academique-entre-art-et-science-latelier-des-icones\/","url_meta":{"origin":20601,"position":5},"title":"Le blogging acad\u00e9mique, entre art et science &#124; L&#039;Atelier des ic\u00f4nes","author":"Lyonel Kaufmann","date":"14 octobre 2013","format":false,"excerpt":"La micro-publication est un nouvel outil de la recherche. Et comme tous les nouveaux outils, elle bouscule le paysage existant. On peut adopter trois attitudes face \u00e0 cette nouvelle donne. Soit l\u2019ignorer, et continuer comme avant. Soit tenter de minimiser ces aspects d\u00e9rangeants, pour les int\u00e9grer en produisant le moins\u2026","rel":"","context":"Dans &quot;Nouvelles de l'histoire&quot;","block_context":{"text":"Nouvelles de l'histoire","link":"https:\/\/lyonelkaufmann.ch\/histoire\/category\/nouvelles-de-lhistoire\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"_links":{"self":[{"href":"https:\/\/lyonelkaufmann.ch\/histoire\/wp-json\/wp\/v2\/posts\/20601","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lyonelkaufmann.ch\/histoire\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lyonelkaufmann.ch\/histoire\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lyonelkaufmann.ch\/histoire\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lyonelkaufmann.ch\/histoire\/wp-json\/wp\/v2\/comments?post=20601"}],"version-history":[{"count":0,"href":"https:\/\/lyonelkaufmann.ch\/histoire\/wp-json\/wp\/v2\/posts\/20601\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lyonelkaufmann.ch\/histoire\/wp-json\/wp\/v2\/media\/20602"}],"wp:attachment":[{"href":"https:\/\/lyonelkaufmann.ch\/histoire\/wp-json\/wp\/v2\/media?parent=20601"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lyonelkaufmann.ch\/histoire\/wp-json\/wp\/v2\/categories?post=20601"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lyonelkaufmann.ch\/histoire\/wp-json\/wp\/v2\/tags?post=20601"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}