{"id":10958,"date":"2020-10-29T22:00:59","date_gmt":"2020-10-30T02:00:59","guid":{"rendered":"https:\/\/mathemalchemy.org\/?p=10958"},"modified":"2023-07-17T23:10:33","modified_gmt":"2023-07-18T03:10:33","slug":"lhistoire-de-tess-la-tortue","status":"publish","type":"post","link":"https:\/\/mathemalchemy.org\/fr\/2020\/10\/29\/lhistoire-de-tess-la-tortue\/","title":{"rendered":"L&rsquo;histoire de Tess la Tortue"},"content":{"rendered":"\n<p>Lorsque Dominique a demand\u00e9 des id\u00e9es de sc\u00e8nes pour Math\u00e9malchemy, je lui ai envoy\u00e9 une proposition comme celle-ci : \u00ab\u00a0Quelque chose autour de l&rsquo;infini&#8230; Le chemin de Z\u00e9non (li\u00e9 au <a href=\"https:\/\/en.wikipedia.org\/wiki\/Zeno%27s_paradoxes\">paradoxe de la dichotomie de Z\u00e9non<\/a>), une colline dont le volume est approxim\u00e9 par des cubo\u00efdes, des flocons de Koch\u00a0\u00bb.<\/p>\n\n<p>La r\u00e9ponse de Dominique a \u00e9t\u00e9 polie : \u00ab\u00a0Je vois que je n&rsquo;ai pas communiqu\u00e9 clairement ce dont nous avons besoin. Je cherche des histoires\u00a0\u00bb.<\/p>\n\n<p><em>Oh, une histoire !<\/em> Je me suis dit que <em>je pouvais \u00e9crire une histoire<\/em>! C&rsquo;est ainsi que, ayant choisi une tortue comme protagoniste (clin d&rsquo;\u0153il au <a href=\"https:\/\/en.wikipedia.org\/wiki\/Zeno%27s_paradoxes\">paradoxe d&rsquo;Achille de Z\u00e9non<\/a>), j&rsquo;ai envoy\u00e9 \u00e0 Dominique le r\u00e9cit suivant.<\/p>\n\n<div class=\"wp-block-group has-primary-color has-background-light-background-color has-text-color has-background coblocks-animate has-huge-padding\" data-coblocks-animation=\"fadeIn\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<h2 class=\"has-text-align-center wp-block-heading\">L&rsquo;histoire de la Tortue<\/h2>\n\n\n\n<p>C&rsquo;est l&rsquo;histoire de la Tortue, qui part \u00e0 l&rsquo;aventure et d\u00e9couvre les limites et les processus infinis. <\/p>\n\n\n\n<p>Un beau jour, la Tortue se r\u00e9veille dans sa chambre de l&rsquo;<a href=\"https:\/\/en.wikipedia.org\/wiki\/Hilbert%27s_paradox_of_the_Grand_Hotel\">h\u00f4tel de Hilbert<\/a> et d\u00e9cide de grimper jusqu&rsquo;au pic de Koch, le sommet de la colline de Riemann. Elle se met en route.<\/p>\n\n\n\n<p>Alors qu&rsquo;elle se prom\u00e8ne sur le chemin de Z\u00e9non, un chemin d&rsquo;un mile qui va de sa maison \u00e0 la colline, elle r\u00e9fl\u00e9chit : pour arriver \u00e0 la colline de Riemann, elle doit parcourir la moiti\u00e9 du chemin, puis la moiti\u00e9 de la distance qui reste \u00e0 parcourir, etc. Elle doit donc se d\u00e9placer le long d&rsquo;un nombre infini de segments de droite. Comment y parviendra-t-elle ? Elle passe devant des balises qui lui indiquent qu&rsquo;elle a parcouru 0 mile, \u00bd mile, \u00be mile, \u215e mile, le long du chemin. Elle passe devant des arbres fractals et peut-\u00eatre d&rsquo;autres choses.<\/p>\n\n\n\n<p>Elle arrive \u00e0 la colline de Riemann. En grimpant la colline, la Tortue se demande : quel est le volume de la colline ? Elle se rend compte qu&rsquo;elle peut l&rsquo;estimer \u00e0 l&rsquo;aide de cubo\u00efdes.<\/p>\n\n\n\n<p>Tortue atteint le pic de Koch, enl\u00e8ve son sac \u00e0 dos et regarde le ciel o\u00f9 tombent les <a href=\"https:\/\/en.wikipedia.org\/wiki\/Koch_snowflake\">flocons de Koch<\/a>!<\/p>\n\n\n\n<p class=\"has-text-align-center has-large-font-size\"><strong><em>FIN<\/em><\/strong><\/p>\n<\/div><\/div>\n\n<p>\u00ab\u00a0Merveilleux !\u00a0\u00bb Dominique lui a r\u00e9pondu. \u00ab\u00a0Je la vois d\u00e9j\u00e0 avec son petit sac \u00e0 dos !\u00a0\u00bb<\/p>\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h3 class=\"wp-block-heading\">Le Groupe de la Tortue<\/h3>\n\n<h4 class=\"has-text-color wp-block-heading\" style=\"color:#f4a811\">Tess prend vie<\/h4>\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large is-resized coblocks-animate\" data-coblocks-animation=\"fadeIn\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/shell-mathemalchemy-art-project.jpg?resize=332%2C332&#038;ssl=1\" alt=\"La Carapace par Elizabeth Paley | Projet Mathemalchemy\" class=\"wp-image-959\" width=\"332\" height=\"332\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/shell-mathemalchemy-art-project.jpg?w=400&amp;ssl=1 400w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/shell-mathemalchemy-art-project.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/shell-mathemalchemy-art-project.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/shell-mathemalchemy-art-project.jpg?resize=200%2C200&amp;ssl=1 200w\" sizes=\"auto, (max-width: 332px) 100vw, 332px\" \/><figcaption>La carapace de Tess par <a href=\"https:\/\/mathemalchemy.org\/team-23-mathematicians-artists-of-mathemalchemy\/#Elizabeth-Paley\">Elizabeth Paley<\/a><\/figcaption><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>C&rsquo;est ainsi qu&rsquo;<a href=\"https:\/\/mathemalchemy.org\/team-23-mathematicians-artists-of-mathemalchemy\/#Elizabeth-Paley\">Elizabeth<\/a>, <a href=\"https:\/\/mathemalchemy.org\/team-23-mathematicians-artists-of-mathemalchemy\/#Kimberly-Roth\">Kimberly<\/a>, <a href=\"https:\/\/mathemalchemy.org\/team-23-mathematicians-artists-of-mathemalchemy\/#Bronna-Butler\">Bronna<\/a>, <a href=\"https:\/\/mathemalchemy.org\/team-23-mathematicians-artists-of-mathemalchemy\/#Tasha-Pruitt\">Tasha<\/a>, <a href=\"https:\/\/mathemalchemy.org\/team-23-mathematicians-artists-of-mathemalchemy\/#Edward-Vogel\">Edward<\/a>, <a href=\"https:\/\/mathemalchemy.org\/team-23-mathematicians-artists-of-mathemalchemy\/#Ingrid-Daubechies\">Ingrid<\/a>, <a href=\"https:\/\/mathemalchemy.org\/team-23-mathematicians-artists-of-mathemalchemy\/#Dominique-Ehrmann\">Dominique<\/a> et <a href=\"https:\/\/mathemalchemy.org\/team-23-mathematicians-artists-of-mathemalchemy\/#Jessica-K.-Sklar\">moi-m\u00eame<\/a> &#8211; le\u00a0\u00bbgroupe de la tortue\u00a0\u00bb &#8211; avons commenc\u00e9 \u00e0 travailler \u00e0 la r\u00e9alisation de l&rsquo;histoire. Tr\u00e8s t\u00f4t, il a \u00e9t\u00e9 d\u00e9cid\u00e9 que la carapace de la Tortue serait <a href=\"https:\/\/en.wikipedia.org\/wiki\/Tessellation#:~:text=A%20tiling%20or%20tessellation%20of,tiling%20has%20a%20repeating%20pattern.\">pav\u00e9e<\/a> (tesselated en anglais) d&rsquo;heptagones, ce qui a incit\u00e9 Edward et Tasha \u00e0 surnommer la Tortue \u00ab\u00a0Tess\u00a0\u00bb.<\/p>\n<\/div>\n<\/div>\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h4 class=\"has-text-color wp-block-heading\" style=\"color:#f4a811\">L&rsquo;histoire \u00e9volue<\/h4>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-top coblocks-animate is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\" data-coblocks-animation=\"fadeIn\">\n<div class=\"wp-block-column is-vertically-aligned-top is-layout-flow wp-block-column-is-layout-flow\">\n<p>Certains \u00e9l\u00e9ments de l&rsquo;histoire ont chang\u00e9 au fil du temps. Il a \u00e9t\u00e9 d\u00e9cid\u00e9 que l&rsquo;h\u00f4tel Hilbert ne ferait pas partie de l&rsquo;installation, mais qu&rsquo;un panneau d&rsquo;affichage l&rsquo;indiquerait. Le groupe de la Tortue ne voulant pas cacher le pavage de la carapace de Tess, le sac \u00e0 dos a \u00e9t\u00e9 remplac\u00e9 par un chariot que Tess tirait derri\u00e8re elle. Mais cela pose aussi des probl\u00e8mes : comment va-t-elle s&rsquo;y prendre exactement ? Peut-elle s&rsquo;y atteler ? Aurait-elle besoin d&rsquo;un ami l\u00e9zard pour l&rsquo;aider ? Un chariot bloquerait-il trop le chemin de Zeno ?<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-top is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/hilbert-s-hotel-tess-tortoise-story-mathemalchemy-art-project.jpg?resize=480%2C360&#038;ssl=1\" alt=\"Enseigne de l'h&#xF4;tel de Hilbert\" class=\"wp-image-1310\" width=\"480\" height=\"360\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/hilbert-s-hotel-tess-tortoise-story-mathemalchemy-art-project.jpg?w=640&amp;ssl=1 640w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/hilbert-s-hotel-tess-tortoise-story-mathemalchemy-art-project.jpg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/hilbert-s-hotel-tess-tortoise-story-mathemalchemy-art-project.jpg?resize=400%2C300&amp;ssl=1 400w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/hilbert-s-hotel-tess-tortoise-story-mathemalchemy-art-project.jpg?resize=200%2C150&amp;ssl=1 200w\" sizes=\"auto, (max-width: 480px) 100vw, 480px\" \/><figcaption>Panneau d&rsquo;affichage de l&rsquo;h\u00f4tel Hilbert par <a href=\"https:\/\/mathemalchemy.org\/team-23-mathematicians-artists-of-mathemalchemy\/#Dominique-Ehrmann\">Dominique Ehrmann<\/a><\/figcaption><\/figure><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n<p>Alors que les discussions sur le charriot se poursuivaient, Dominique a sugg\u00e9r\u00e9 de r\u00e9fl\u00e9chir \u00e0 des alternatives. Apr\u00e8s plusieurs jours de r\u00e9flexion, il m&rsquo;est venu \u00e0 l&rsquo;esprit que, si nous ne voulions pas cacher sa coquille ou le chemin, Tess pourrait peut-\u00eatre tenir quelque chose qui flotterait au-dessus d&rsquo;elle. Peut-\u00eatre un ballon ? Peut-\u00eatre m\u00eame un ballon toro\u00efdal ?<\/p>\n\n<figure class=\"wp-block-gallery columns-2 is-cropped coblocks-animate has-lightbox wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\" data-coblocks-animation=\"clipVertical\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"852\" height=\"600\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/tasha-preliminary-sketch-tess-with-cart-mathemalchemy-art-project.jpg?resize=852%2C600&#038;ssl=1\" alt=\"Croquis pr&#xE9;liminaire de Tasha Pruitt\" data-id=\"1315\" data-full-url=\"https:\/\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/tasha-preliminary-sketch-tess-with-cart-mathemalchemy-art-project.jpg\" data-link=\"https:\/\/mathemalchemy.org\/?attachment_id=1315\" class=\"wp-image-1315\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/tasha-preliminary-sketch-tess-with-cart-mathemalchemy-art-project.jpg?w=852&amp;ssl=1 852w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/tasha-preliminary-sketch-tess-with-cart-mathemalchemy-art-project.jpg?resize=300%2C211&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/tasha-preliminary-sketch-tess-with-cart-mathemalchemy-art-project.jpg?resize=768%2C541&amp;ssl=1 768w\" sizes=\"auto, (max-width: 852px) 100vw, 852px\" \/><figcaption class=\"blocks-gallery-item__caption\">Croquis pr\u00e9liminaire de <a href=\"https:\/\/mathemalchemy.org\/team-23-mathematicians-artists-of-mathemalchemy\/#Tasha-Pruitt\">Tasha Pruitt<\/a><\/figcaption><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"284\" height=\"213\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/torus-balloon-jessica-k-sklar-mathemalchemy-art-project-collaboration-mathematics.jpg?resize=284%2C213&#038;ssl=1\" alt=\"Croquis pr&#xE9;liminaire : Tess avec un ballon torique\" data-id=\"887\" data-full-url=\"https:\/\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/torus-balloon-jessica-k-sklar-mathemalchemy-art-project-collaboration-mathematics.jpg\" data-link=\"https:\/\/mathemalchemy.org\/team-23-mathematicians-artists-of-mathemalchemy\/torus-balloon-jessica-k-sklar-mathemalchemy-art-project-collaboration-mathematics\/\" class=\"wp-image-887\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/torus-balloon-jessica-k-sklar-mathemalchemy-art-project-collaboration-mathematics.jpg?w=284&amp;ssl=1 284w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/torus-balloon-jessica-k-sklar-mathemalchemy-art-project-collaboration-mathematics.jpg?resize=200%2C150&amp;ssl=1 200w\" sizes=\"auto, (max-width: 284px) 100vw, 284px\" \/><figcaption class=\"blocks-gallery-item__caption\"><br\/>Croquis pr\u00e9liminaire de <a rel=\"noreferrer noopener\" href=\"https:\/\/mathemalchemy.org\/team-23-mathematicians-artists-of-mathemalchemy\/#Jessica-K.-Sklar\" target=\"_blank\">Jessica K. Sklar<\/a>. Tortue photographi\u00e9e par Amoury Laporte, <a rel=\"noreferrer noopener\" href=\"http:\/\/pix.alaporte.net\/\" target=\"_blank\">pix.alaporte.net<\/a><\/figcaption><\/figure><\/li><\/ul><\/figure>\n<p><\/p>\n\n<p><\/p>\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<div class=\"wp-block-columns coblocks-animate is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\" data-coblocks-animation=\"slideInRight\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-gallery columns-2 is-cropped wp-block-gallery-2 is-layout-flex wp-block-gallery-is-layout-flex\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"268\" height=\"300\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/tetra-3.jpg?resize=268%2C300&#038;ssl=1\" alt=\"\" data-id=\"1319\" class=\"wp-image-1319\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/tetra-3.jpg?resize=268%2C300&amp;ssl=1 268w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/tetra-3.jpg?resize=768%2C858&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/tetra-3.jpg?w=900&amp;ssl=1 900w\" sizes=\"auto, (max-width: 268px) 100vw, 268px\" \/><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"239\" height=\"300\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/tetra-1.jpg?resize=239%2C300&#038;ssl=1\" alt=\"\" data-id=\"1317\" class=\"wp-image-1317\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/tetra-1.jpg?resize=239%2C300&amp;ssl=1 239w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/tetra-1.jpg?resize=817%2C1024&amp;ssl=1 817w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/tetra-1.jpg?resize=768%2C963&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/tetra-1.jpg?w=900&amp;ssl=1 900w\" sizes=\"auto, (max-width: 239px) 100vw, 239px\" \/><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"274\" height=\"300\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/tetra-2.jpg?resize=274%2C300&#038;ssl=1\" alt=\"\" data-id=\"1318\" class=\"wp-image-1318\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/tetra-2.jpg?resize=274%2C300&amp;ssl=1 274w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/tetra-2.jpg?resize=768%2C840&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/tetra-2.jpg?w=823&amp;ssl=1 823w\" sizes=\"auto, (max-width: 274px) 100vw, 274px\" \/><\/figure><\/li><\/ul><figcaption class=\"blocks-gallery-caption\">Mod\u00e8le d&rsquo;une partie de cerf-volant par <a href=\"https:\/\/mathemalchemy.org\/team-23-mathematicians-artists-of-mathemalchemy\/#Bronna-Butler\">Bronna Butler<\/a><\/figcaption><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>J&rsquo;ai pr\u00e9sent\u00e9 ces id\u00e9es au groupe, et bien que les gens aient aim\u00e9 l&rsquo;id\u00e9e du ballon, nous n&rsquo;\u00e9tions pas s\u00fbrs de la mani\u00e8re de le cr\u00e9er. C&rsquo;est alors que <a href=\"https:\/\/mathemalchemy.org\/team-23-mathematicians-artists-of-mathemalchemy\/#Edward-Vogel\">Edward<\/a>&#8211; qui se trouve \u00eatre un concepteur de cerf-volant &#8211; sugg\u00e9ra qu&rsquo;au lieu de tenir un ballon, Tess pourrait faire voler un cerf-volant. Le groupe a imm\u00e9diatement compris qu&rsquo;il s&rsquo;agissait du choix id\u00e9al pour notre tortue curieuse . Le cerf-volant de Tess sera un <a href=\"https:\/\/mathworld.wolfram.com\/Tetrix.html\">t\u00e9tra\u00e8dre de Sierpi\u0144ski<\/a>de deuxi\u00e8me it\u00e9ration, qui s&rsquo;int\u00e8gre au motif de l&rsquo;infini de l&rsquo;histoire de Tess.<\/p>\n<\/div>\n<\/div>\n\n<div class=\"wp-block-group alignfull has-background-light-background-color has-background coblocks-animate\" data-coblocks-animation=\"fadeIn\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<h4 class=\"has-text-color wp-block-heading\" style=\"color:#f4a811\">D\u00e9placer des montagnes <\/h4>\n\n\n\n<p>La colline a \u00e9galement \u00e9volu\u00e9. Ingrid a propos\u00e9 une autre architecture &#8211; en partie des terrasses, en partie des falaises &#8211; qui correspondrait mieux \u00e0 l&rsquo;aspect naturaliste de l&rsquo;installation, et qui repr\u00e9senterait les deux types d&rsquo;int\u00e9grale : de <a href=\"https:\/\/en.wikipedia.org\/wiki\/Riemann_integral\">Riemann<\/a> et de<a href=\"https:\/\/en.wikipedia.org\/wiki\/Lebesgue_integration\">Lebesgue<\/a>. Le groupe a accept\u00e9 avec enthousiasme ce changement, et c&rsquo;est ainsi qu&rsquo;est n\u00e9e la Colline Int\u00e9grale.<\/p>\n\n\n\n<div class=\"wp-block-columns alignwide are-vertically-aligned-bottom is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-bottom is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"604\" height=\"389\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/original-Riemann-Hill-design.jpg?resize=604%2C389&#038;ssl=1\" alt=\"\" class=\"wp-image-1323\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/original-Riemann-Hill-design.jpg?w=604&amp;ssl=1 604w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/original-Riemann-Hill-design.jpg?resize=300%2C193&amp;ssl=1 300w\" sizes=\"auto, (max-width: 604px) 100vw, 604px\" \/><figcaption>Conception originale de la Colline de Riemann. par Tom Edgar<\/figcaption><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-bottom is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"788\" height=\"758\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/second_example_reworked_a-1.png?resize=788%2C758&#038;ssl=1\" alt=\"\" class=\"wp-image-1372\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/second_example_reworked_a-1.png?w=788&amp;ssl=1 788w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/second_example_reworked_a-1.png?resize=300%2C289&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/second_example_reworked_a-1.png?resize=768%2C739&amp;ssl=1 768w\" sizes=\"auto, (max-width: 788px) 100vw, 788px\" \/><figcaption>Plan de la Colline Int\u00e9grale, par <a href=\"https:\/\/mathemalchemy.org\/team-23-mathematicians-artists-of-mathemalchemy\/#Ingrid-Daubechies\">Ingrid Debauchies<\/a><\/figcaption><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-bottom is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"554\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/tortoise-hill-mathmalchemy-art-project-collaboration-mathematics.jpg?resize=900%2C554&#038;ssl=1\" alt=\"Photo de la Colline de la Tortue\" class=\"wp-image-1149\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/tortoise-hill-mathmalchemy-art-project-collaboration-mathematics.jpg?w=1000&amp;ssl=1 1000w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/tortoise-hill-mathmalchemy-art-project-collaboration-mathematics.jpg?resize=300%2C185&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/tortoise-hill-mathmalchemy-art-project-collaboration-mathematics.jpg?resize=768%2C472&amp;ssl=1 768w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption>Mod\u00e8le de la Colline Int\u00e9grale par <a href=\"https:\/\/mathemalchemy.org\/team-23-mathematicians-artists-of-mathemalchemy\/#Dominique-Ehrmann\">Dominique Ehrmann<\/a><\/figcaption><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-bottom is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"675\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/tortoise-hill-in-maquette-mathemalchemy-art-project.jpg?resize=900%2C675&#038;ssl=1\" alt=\"\" class=\"wp-image-1325\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/tortoise-hill-in-maquette-mathemalchemy-art-project.jpg?w=900&amp;ssl=1 900w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/tortoise-hill-in-maquette-mathemalchemy-art-project.jpg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/tortoise-hill-in-maquette-mathemalchemy-art-project.jpg?resize=768%2C576&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/tortoise-hill-in-maquette-mathemalchemy-art-project.jpg?resize=800%2C600&amp;ssl=1 800w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/tortoise-hill-in-maquette-mathemalchemy-art-project.jpg?resize=400%2C300&amp;ssl=1 400w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/tortoise-hill-in-maquette-mathemalchemy-art-project.jpg?resize=200%2C150&amp;ssl=1 200w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption>Colline de Riemann dans la maquette de Mathemalchemy<\/figcaption><\/figure><\/div>\n<\/div>\n<\/div><\/div>\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<div class=\"wp-block-columns alignwide are-vertically-aligned-top is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-top is-layout-flow wp-block-column-is-layout-flow\">\n<h4 class=\"has-text-color wp-block-heading\" id=\"zenospath\" style=\"color:#f4a811\">Le chemin de Z\u00e9non<\/h4>\n\n\n\n<p>Enfin, les bornes du chemin de Z\u00e9non ont \u00e9t\u00e9 remplac\u00e9es par une disposition des pav\u00e9s sp\u00e9cifique (avec l&rsquo;aimable autorisation d&rsquo;Ingrid) : la taille des pav\u00e9s sera divis\u00e9e par deux \u00e0 la moiti\u00e9 du chemin, de m\u00eame aux \u00be etc.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-top is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"432\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/ingrid-daubechies-zeno-s-path-design-marhemalchemy-art-project.jpg?resize=900%2C432&#038;ssl=1\" alt=\"Chemin de Z&#xE9;non, con&#xE7;u par Ingrid Daubechies\" class=\"wp-image-1327\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/ingrid-daubechies-zeno-s-path-design-marhemalchemy-art-project.jpg?w=900&amp;ssl=1 900w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/ingrid-daubechies-zeno-s-path-design-marhemalchemy-art-project.jpg?resize=300%2C144&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/ingrid-daubechies-zeno-s-path-design-marhemalchemy-art-project.jpg?resize=768%2C369&amp;ssl=1 768w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption>Chemin de Z\u00e9non, con\u00e7u par <a href=\"https:\/\/mathemalchemy.org\/team-23-mathematicians-artists-of-mathemalchemy\/#Ingrid-Daubechies\">Ingrid Daubechies<\/a><\/figcaption><\/figure>\n\n\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"405\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/tortoise-zeno-path-mathemalchemy-art-project.jpg?resize=900%2C405&#038;ssl=1\" alt=\"Tess la tortue marchant sur le chemin de Z&#xE9;non dans la maquette de Mathemalchemy\" class=\"wp-image-1328\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/tortoise-zeno-path-mathemalchemy-art-project.jpg?w=1000&amp;ssl=1 1000w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/tortoise-zeno-path-mathemalchemy-art-project.jpg?resize=300%2C135&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/tortoise-zeno-path-mathemalchemy-art-project.jpg?resize=768%2C346&amp;ssl=1 768w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption>Tess la tortue marchant sur le chemin de Z\u00e9non dans la maquette de Mathemalchemy<\/figcaption><\/figure><\/div>\n<\/div>\n\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image alignwide size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"675\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/test-turtoise-2-kimberly-roth-mathemalchemy-art-project-collaboration-mathematics.jpg?resize=900%2C675&#038;ssl=1\" alt=\"\" class=\"wp-image-1313\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/test-turtoise-2-kimberly-roth-mathemalchemy-art-project-collaboration-mathematics.jpg?resize=1024%2C768&amp;ssl=1 1024w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/test-turtoise-2-kimberly-roth-mathemalchemy-art-project-collaboration-mathematics.jpg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/test-turtoise-2-kimberly-roth-mathemalchemy-art-project-collaboration-mathematics.jpg?resize=768%2C576&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/test-turtoise-2-kimberly-roth-mathemalchemy-art-project-collaboration-mathematics.jpg?resize=800%2C600&amp;ssl=1 800w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/test-turtoise-2-kimberly-roth-mathemalchemy-art-project-collaboration-mathematics.jpg?resize=400%2C300&amp;ssl=1 400w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/test-turtoise-2-kimberly-roth-mathemalchemy-art-project-collaboration-mathematics.jpg?resize=200%2C150&amp;ssl=1 200w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/test-turtoise-2-kimberly-roth-mathemalchemy-art-project-collaboration-mathematics.jpg?w=1200&amp;ssl=1 1200w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption>La carapace de Tess par <a href=\"https:\/\/mathemalchemy.org\/team-23-mathematicians-artists-of-mathemalchemy\/#Elizabeth-Paley\">Elizabeth Paley<\/a>, et le corps par <a href=\"https:\/\/mathemalchemy.org\/team-23-mathematicians-artists-of-mathemalchemy\/#Kimberly-Roth\">Kimberly Roth<\/a><\/figcaption><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"has-large-font-size\">Ce fut un plaisir de voir Tess et son histoire prendre vie.<\/p>\n<\/div>\n<\/div>\n\n<figure class=\"wp-block-image alignwide size-large coblocks-animate\" data-coblocks-animation=\"slideInBottom\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"675\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/zenos-path-tess-tortoise-mathemalchemy-art-project.jpg?resize=900%2C675&#038;ssl=1\" alt=\"\" class=\"wp-image-1346\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/zenos-path-tess-tortoise-mathemalchemy-art-project.jpg?resize=1024%2C768&amp;ssl=1 1024w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/zenos-path-tess-tortoise-mathemalchemy-art-project.jpg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/zenos-path-tess-tortoise-mathemalchemy-art-project.jpg?resize=768%2C576&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/zenos-path-tess-tortoise-mathemalchemy-art-project.jpg?resize=800%2C600&amp;ssl=1 800w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/zenos-path-tess-tortoise-mathemalchemy-art-project.jpg?resize=400%2C300&amp;ssl=1 400w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/zenos-path-tess-tortoise-mathemalchemy-art-project.jpg?resize=200%2C150&amp;ssl=1 200w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/zenos-path-tess-tortoise-mathemalchemy-art-project.jpg?w=1200&amp;ssl=1 1200w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption>Tess sur le chemin de Z\u00e9non dans la maquette de Mathemalchemy<\/figcaption><\/figure>\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Lorsque Dominique a demand\u00e9 des id\u00e9es de sc\u00e8nes pour Math\u00e9malchemy, je lui ai envoy\u00e9 une proposition comme celle-ci : \u00ab\u00a0Quelque chose autour de l&rsquo;infini&#8230; Le chemin de Z\u00e9non (li\u00e9 au paradoxe de la dichotomie de Z\u00e9non), une colline dont le volume est approxim\u00e9 par des cubo\u00efdes, des flocons de Koch\u00a0\u00bb. La r\u00e9ponse de Dominique a<a class=\"more-link\" href=\"https:\/\/mathemalchemy.org\/fr\/2020\/10\/29\/lhistoire-de-tess-la-tortue\/\">Lire la suite <span class=\"screen-reader-text\">\u00ab\u00a0L&rsquo;histoire de Tess la Tortue\u00a0\u00bb<\/span><\/a><\/p>\n","protected":false},"author":44503776,"featured_media":9063,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","_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_post_was_ever_published":false},"categories":[6674],"tags":[6778,6747,6856,6859,6788,6712,6779,6858,6857,6715,6804,6745,7163,6753,6834,6831],"class_list":["post-10958","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cartographier-mathemalchemy","tag-cerf-volant","tag-chemin-de-zenon","tag-colline-integrale","tag-flocons-de-neige-de-koch","tag-fractales","tag-hotel-hilbert","tag-infinite","tag-integration-de-lebesgue","tag-integration-de-riemann","tag-jessica-k-sklar-fr","tag-limites","tag-paradoxe-de-zenon","tag-tetraedre-de-sierpinski","tag-tess-fr","tag-tessellation-fr","tag-tortue","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>L&#039;histoire de Tess la Tortue - Mathemalchemy<\/title>\n<meta name=\"description\" content=\"Lisez l&#039;histoire de Tess la tortue, qui part \u00e0 l&#039;aventure et d\u00e9couvre les limites et les processus infinis sur le chemin de Z\u00e9non de Mathemalchemy.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mathemalchemy.org\/fr\/2023\/06\/07\/lhistoire-de-tess-la-tortue\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"L&#039;histoire de Tess la Tortue - Mathemalchemy\" \/>\n<meta property=\"og:description\" content=\"Lisez l&#039;histoire de Tess la tortue, qui part \u00e0 l&#039;aventure et d\u00e9couvre les limites et les processus infinis sur le chemin de Z\u00e9non de Mathemalchemy.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/mathemalchemy.org\/fr\/2023\/06\/07\/lhistoire-de-tess-la-tortue\/\" \/>\n<meta property=\"og:site_name\" content=\"Mathemalchemy\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/Mathemalchemy-103377841519027\" \/>\n<meta property=\"article:published_time\" content=\"2020-10-30T02:00:59+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-07-18T03:10:33+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/mathemalchemy.org\/wp-content\/uploads\/2020\/10\/test-turtoise-2-kimberly-roth-mathemalchemy-art-project-collaboration-mathematics.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"900\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Jessica K. 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