{"id":10423,"date":"2026-10-01T05:51:00","date_gmt":"2026-10-01T04:51:00","guid":{"rendered":"https:\/\/robotechno.casciani.fr\/?p=10423"},"modified":"2026-09-18T05:52:37","modified_gmt":"2026-09-18T04:52:37","slug":"comment-nos-ancetres-ont-traverse-la-terre-pieds-nus","status":"publish","type":"post","link":"https:\/\/robotechno.casciani.fr\/?p=10423","title":{"rendered":"Comment nos anc\u00eatres ont travers\u00e9 la Terre pieds nus"},"content":{"rendered":"\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Comment nos anc\u00eatres ont travers\u00e9 la Terre pieds nus\" width=\"474\" height=\"267\" src=\"https:\/\/www.youtube.com\/embed\/ywwkM_BQNsM?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Ce matin, tu as parcouru des dizaines de kilom\u00e8tres assis. Il y a cent mille ans, le m\u00eame trajet, c&rsquo;\u00e9tait deux jours de marche pieds nus. Pendant des centaines de milliers d&rsquo;ann\u00e9es, aucun humain n&rsquo;est jamais all\u00e9 plus vite que ses propres jambes. Pas de roue, pas d&rsquo;animal \u00e0 monter, rien pour porter un corps. Et pourtant, ces gens-l\u00e0 ont fini par s&rsquo;installer sur presque toutes les terres du globe. Dans cette vid\u00e9o, on regarde de pr\u00e8s la machine qui a rendu \u00e7a possible : une vo\u00fbte plantaire qui fonctionne comme un ressort, un tendon d&rsquo;Achille qui relance le pas, un ligament qui stabilise la t\u00eate \u00e0 chaque impact, et une peau nue qui refroidit le corps pendant qu&rsquo;il continue d&rsquo;avancer. Un animal incapable de rattraper quoi que ce soit \u00e0 la course, mais capable de suivre une piste toute la journ\u00e9e. On suit ensuite les traces de ce corps de marcheur : les empreintes de Laetoli vieilles de 3,6 millions d&rsquo;ann\u00e9es, les lames d&rsquo;obsidienne transport\u00e9es \u00e0 des centaines de kilom\u00e8tres de leur volcan, les coquillages retrouv\u00e9s au c\u0153ur des terres. Puis on arrive devant la seule chose que la marche n&rsquo;a jamais pu franchir : l&rsquo;eau. Les outils de l&rsquo;\u00eele de Flor\u00e8s, la travers\u00e9e vers l&rsquo;Australie, le tronc \u00e9vid\u00e9 de Pesse, et les pirogues polyn\u00e9siennes parties sans un seul instrument.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ce matin, tu as parcouru des dizaines de kilom\u00e8tres assis. Il y a cent mille ans, le m\u00eame trajet, c&rsquo;\u00e9tait deux jours de marche pieds nus. Pendant des centaines de milliers d&rsquo;ann\u00e9es, aucun humain n&rsquo;est jamais all\u00e9 plus vite que ses propres jambes. Pas de roue, pas d&rsquo;animal \u00e0 monter, rien pour porter un corps. &hellip; <a href=\"https:\/\/robotechno.casciani.fr\/?p=10423\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">Comment nos anc\u00eatres ont travers\u00e9 la Terre pieds nus<\/span>  <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1293],"tags":[1885,2304,366],"class_list":["post-10423","post","type-post","status-publish","format-standard","hentry","category-technologie","tag-marcher","tag-pied","tag-technologie"],"_links":{"self":[{"href":"https:\/\/robotechno.casciani.fr\/index.php?rest_route=\/wp\/v2\/posts\/10423","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/robotechno.casciani.fr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/robotechno.casciani.fr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/robotechno.casciani.fr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/robotechno.casciani.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10423"}],"version-history":[{"count":1,"href":"https:\/\/robotechno.casciani.fr\/index.php?rest_route=\/wp\/v2\/posts\/10423\/revisions"}],"predecessor-version":[{"id":10424,"href":"https:\/\/robotechno.casciani.fr\/index.php?rest_route=\/wp\/v2\/posts\/10423\/revisions\/10424"}],"wp:attachment":[{"href":"https:\/\/robotechno.casciani.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10423"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/robotechno.casciani.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10423"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/robotechno.casciani.fr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10423"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}