{"id":15153,"date":"2022-11-19T23:23:22","date_gmt":"2022-11-19T23:23:22","guid":{"rendered":"https:\/\/www.fraczinet.cl\/sitio\/?p=15153"},"modified":"2022-11-19T23:28:56","modified_gmt":"2022-11-19T23:28:56","slug":"erastostenes-mido-hace-2000-anos-la-circunferencia-de-la-tierra","status":"publish","type":"post","link":"https:\/\/www.fraczinet.cl\/sitio\/2022\/11\/19\/erastostenes-mido-hace-2000-anos-la-circunferencia-de-la-tierra\/","title":{"rendered":"Erast\u00f3stenes Mid\u00f3 Hace 2000 A\u00f1os La Circunferencia De La Tierra"},"content":{"rendered":"<figure id=\"attachment_15154\" aria-describedby=\"caption-attachment-15154\" style=\"width: 300px\" class=\"wp-caption alignleft\"><img fetchpriority=\"high\" decoding=\"async\" class=\"size-medium wp-image-15154\" src=\"https:\/\/www.fraczinet.cl\/sitio\/wp-content\/uploads\/2022\/11\/Eratostenes-ensenando-300x190.jpeg\" alt=\"Eratosthenes ense\u00f1ando en Alejandr\u00eda. Una pintura de Bernardo Strozzi.\" width=\"300\" height=\"190\" srcset=\"https:\/\/www.fraczinet.cl\/sitio\/wp-content\/uploads\/2022\/11\/Eratostenes-ensenando-300x190.jpeg 300w, https:\/\/www.fraczinet.cl\/sitio\/wp-content\/uploads\/2022\/11\/Eratostenes-ensenando.jpeg 570w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-15154\" class=\"wp-caption-text\">Eratosthenes ense\u00f1ando en Alejandr\u00eda. Una pintura de Bernardo Strozzi.<\/figcaption><\/figure>\n<h4><span style=\"font-family: arial;\">No hace falta ir al espacio para averiguar la circunferencia de la Tierra\u00a0<\/span><\/h4>\n<div dir=\"auto\"><span style=\"font-family: arial;\"><span style=\"color: #222222;\">\u00a0<\/span><\/span><\/div>\n<div dir=\"auto\"><span style=\"font-family: arial;\"><span style=\"color: #222222;\">Hace m\u00e1s de 2000 a\u00f1os, el matem\u00e1tico Erast\u00f3stenes hab\u00eda o\u00eddo q<\/span><\/span><span style=\"color: #222222; font-family: arial;\">ue en Syene, una ciudad al sur de Alejandr\u00eda, no se proyectaban sombras verticales al\u00a0mediod\u00eda\u00a0en el solsticio de verano. El Sol estaba directamente encima. Se pregunt\u00f3 si esto tambi\u00e9n era cierto en Alejandr\u00eda.\u00a0<\/span><\/div>\n<div dir=\"auto\"><span style=\"font-family: arial;\">\u00a0<\/span><\/div>\n<div dir=\"auto\"><span style=\"font-family: arial;\"><span style=\"color: #222222;\">Entonces, el 21 de Junio,\u00a0clav\u00f3\u00a0un palo directamente en el suelo y espero para ver si se proyectaba una sombra al mediod\u00eda. Resulta que si proyect\u00f3 y que media unos 7 grados.\u00a0<\/span><\/span><\/div>\n<div dir=\"auto\"><span style=\"font-family: arial;\">\u00a0<\/span><\/div>\n<div dir=\"auto\"><span style=\"font-family: arial;\">Ahora, si los rayos del Sol est\u00e1n entrando en el mismo \u00e1ngulo a la misma hora del d\u00eda y un palo en Alejandr\u00eda est\u00e1 proyectando, mientras que un palo en Syene no lo est\u00e1, eso significa que la superficie de la Tierra est\u00e1 curvada. La cabeza de Erast\u00f3tenes comenz\u00f3 a llenarse de c\u00e1lculos.\u00a0<\/span><\/div>\n<div dir=\"auto\"><span style=\"font-family: arial;\">\u00a0<\/span><\/div>\n<div dir=\"auto\"><span style=\"font-family: arial;\">Dado que la diferencia en la longitud de la sombra es de 7 grados en Alejandr\u00eda y Syene, eso significa que<\/span><\/div>\n<p><img decoding=\"async\" class=\" wp-image-15158 alignright\" src=\"https:\/\/www.fraczinet.cl\/sitio\/wp-content\/uploads\/2022\/11\/erastotenes2-300x170.jpg\" alt=\"\" width=\"423\" height=\"240\" srcset=\"https:\/\/www.fraczinet.cl\/sitio\/wp-content\/uploads\/2022\/11\/erastotenes2-300x170.jpg 300w, https:\/\/www.fraczinet.cl\/sitio\/wp-content\/uploads\/2022\/11\/erastotenes2-768x435.jpg 768w, https:\/\/www.fraczinet.cl\/sitio\/wp-content\/uploads\/2022\/11\/erastotenes2.jpg 942w\" sizes=\"(max-width: 423px) 100vw, 423px\" \/><\/p>\n<div dir=\"auto\"><span style=\"font-family: arial;\">\u00a0las dos ciudades est\u00e1n separadas por 7 grados en la superficie de 360 grados d\u00e9 la Tierra. Erast\u00f3tenes contrat\u00f3 a un hombre para recorrer la distancia entre las dos ciudades, y se enter\u00f3 de que estaban separadas por 5000 estadios (800 km).\u00a0<\/span><\/div>\n<div dir=\"auto\"><span style=\"font-family: arial;\">\u00a0<\/span><\/div>\n<div dir=\"auto\"><span style=\"font-family: arial;\">Luego uso proporciones simples para encontrar la circunferencia de la Tierra: 7.2 grados es 1\\50 de 360 grados, por lo que 800 veces 50 equivalen a 40.000 km.\u00a0<\/span><\/div>\n<div dir=\"auto\"><span style=\"font-family: arial;\">\u00a0<\/span><\/div>\n<div dir=\"auto\"><span style=\"font-family: arial;\">Y as\u00ed, un hombre de hace 2.000 a\u00f1os, encontr\u00f3 la circunferencia de la Tierra usando un palo y su cerebro.\u00a0<\/span><\/div>\n<div dir=\"auto\"><\/div>\n<div dir=\"auto\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>No hace falta ir al espacio para averiguar la circunferencia de la Tierra. Erast\u00f3stenes lo hizo usando la sombra que da el Sol<\/p>\n","protected":false},"author":1,"featured_media":15154,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[],"class_list":["post-15153","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-historia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Erast\u00f3stenes Mid\u00f3 Hace 2000 A\u00f1os La Circunferencia De La Tierra - Nuestro Bio B\u00edo<\/title>\n<meta name=\"description\" content=\"No hace falta ir al espacio para averiguar la circunferencia de la Tierra. Erast\u00f3stenes lo hizo usando la sombra que da el Sol.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.fraczinet.cl\/sitio\/2022\/11\/19\/erastostenes-mido-hace-2000-anos-la-circunferencia-de-la-tierra\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Erast\u00f3stenes Mid\u00f3 Hace 2000 A\u00f1os La Circunferencia De La Tierra - Nuestro Bio B\u00edo\" \/>\n<meta property=\"og:description\" content=\"No hace falta ir al espacio para averiguar la circunferencia de la Tierra. Erast\u00f3stenes lo hizo usando la sombra que da el Sol.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.fraczinet.cl\/sitio\/2022\/11\/19\/erastostenes-mido-hace-2000-anos-la-circunferencia-de-la-tierra\/\" \/>\n<meta property=\"og:site_name\" content=\"Nuestro Bio B\u00edo\" \/>\n<meta property=\"article:published_time\" content=\"2022-11-19T23:23:22+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-11-19T23:28:56+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.fraczinet.cl\/sitio\/wp-content\/uploads\/2022\/11\/Eratostenes-ensenando.jpeg\" \/>\n\t<meta property=\"og:image:width\" content=\"570\" \/>\n\t<meta property=\"og:image:height\" content=\"361\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@nuestrobiobio\" \/>\n<meta name=\"twitter:site\" content=\"@nuestrobiobio\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tiempo de lectura\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.fraczinet.cl\/sitio\/2022\/11\/19\/erastostenes-mido-hace-2000-anos-la-circunferencia-de-la-tierra\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.fraczinet.cl\/sitio\/2022\/11\/19\/erastostenes-mido-hace-2000-anos-la-circunferencia-de-la-tierra\/\"},\"author\":{\"name\":\"admin\",\"@id\":\"https:\/\/www.fraczinet.cl\/sitio\/#\/schema\/person\/bc30f98e9cb10ae7e119dbe14bc93784\"},\"headline\":\"Erast\u00f3stenes Mid\u00f3 Hace 2000 A\u00f1os La Circunferencia De La Tierra\",\"datePublished\":\"2022-11-19T23:23:22+00:00\",\"dateModified\":\"2022-11-19T23:28:56+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.fraczinet.cl\/sitio\/2022\/11\/19\/erastostenes-mido-hace-2000-anos-la-circunferencia-de-la-tierra\/\"},\"wordCount\":290,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.fraczinet.cl\/sitio\/#\/schema\/person\/aec8ee4da68df2b9b0eefdad24a0d582\"},\"image\":{\"@id\":\"https:\/\/www.fraczinet.cl\/sitio\/2022\/11\/19\/erastostenes-mido-hace-2000-anos-la-circunferencia-de-la-tierra\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.fraczinet.cl\/sitio\/wp-content\/uploads\/2022\/11\/Eratostenes-ensenando.jpeg\",\"articleSection\":[\"Historia\"],\"inLanguage\":\"es\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.fraczinet.cl\/sitio\/2022\/11\/19\/erastostenes-mido-hace-2000-anos-la-circunferencia-de-la-tierra\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.fraczinet.cl\/sitio\/2022\/11\/19\/erastostenes-mido-hace-2000-anos-la-circunferencia-de-la-tierra\/\",\"url\":\"https:\/\/www.fraczinet.cl\/sitio\/2022\/11\/19\/erastostenes-mido-hace-2000-anos-la-circunferencia-de-la-tierra\/\",\"name\":\"Erast\u00f3stenes Mid\u00f3 Hace 2000 A\u00f1os La Circunferencia De La Tierra - Nuestro Bio B\u00edo\",\"isPartOf\":{\"@id\":\"https:\/\/www.fraczinet.cl\/sitio\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.fraczinet.cl\/sitio\/2022\/11\/19\/erastostenes-mido-hace-2000-anos-la-circunferencia-de-la-tierra\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.fraczinet.cl\/sitio\/2022\/11\/19\/erastostenes-mido-hace-2000-anos-la-circunferencia-de-la-tierra\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.fraczinet.cl\/sitio\/wp-content\/uploads\/2022\/11\/Eratostenes-ensenando.jpeg\",\"datePublished\":\"2022-11-19T23:23:22+00:00\",\"dateModified\":\"2022-11-19T23:28:56+00:00\",\"description\":\"No hace falta ir al espacio para averiguar la circunferencia de la Tierra. Erast\u00f3stenes lo hizo usando la sombra que da el Sol.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.fraczinet.cl\/sitio\/2022\/11\/19\/erastostenes-mido-hace-2000-anos-la-circunferencia-de-la-tierra\/#breadcrumb\"},\"inLanguage\":\"es\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.fraczinet.cl\/sitio\/2022\/11\/19\/erastostenes-mido-hace-2000-anos-la-circunferencia-de-la-tierra\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"es\",\"@id\":\"https:\/\/www.fraczinet.cl\/sitio\/2022\/11\/19\/erastostenes-mido-hace-2000-anos-la-circunferencia-de-la-tierra\/#primaryimage\",\"url\":\"https:\/\/www.fraczinet.cl\/sitio\/wp-content\/uploads\/2022\/11\/Eratostenes-ensenando.jpeg\",\"contentUrl\":\"https:\/\/www.fraczinet.cl\/sitio\/wp-content\/uploads\/2022\/11\/Eratostenes-ensenando.jpeg\",\"width\":570,\"height\":361,\"caption\":\"Eratosthenes ense\u00f1ando en Alejandr\u00eda. Una pintura de Bernardo Strozzi.\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.fraczinet.cl\/sitio\/2022\/11\/19\/erastostenes-mido-hace-2000-anos-la-circunferencia-de-la-tierra\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Portada\",\"item\":\"https:\/\/www.fraczinet.cl\/sitio\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Erast\u00f3stenes Mid\u00f3 Hace 2000 A\u00f1os La Circunferencia De La Tierra\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.fraczinet.cl\/sitio\/#website\",\"url\":\"https:\/\/www.fraczinet.cl\/sitio\/\",\"name\":\"Nuestro Bio B\u00edo\",\"description\":\"Tierra de Encuentros\",\"publisher\":{\"@id\":\"https:\/\/www.fraczinet.cl\/sitio\/#\/schema\/person\/aec8ee4da68df2b9b0eefdad24a0d582\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.fraczinet.cl\/sitio\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"es\"},{\"@type\":[\"Person\",\"Organization\"],\"@id\":\"https:\/\/www.fraczinet.cl\/sitio\/#\/schema\/person\/aec8ee4da68df2b9b0eefdad24a0d582\",\"name\":\"Luis Fernando Fraczinet\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"es\",\"@id\":\"https:\/\/www.fraczinet.cl\/sitio\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/www.fraczinet.cl\/sitio\/wp-content\/uploads\/2021\/07\/bannerlogo-1.gif\",\"contentUrl\":\"https:\/\/www.fraczinet.cl\/sitio\/wp-content\/uploads\/2021\/07\/bannerlogo-1.gif\",\"width\":159,\"height\":79,\"caption\":\"Luis Fernando Fraczinet\"},\"logo\":{\"@id\":\"https:\/\/www.fraczinet.cl\/sitio\/#\/schema\/person\/image\/\"},\"sameAs\":[\"https:\/\/www.fraczinet.cl\/sitio\/\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.fraczinet.cl\/sitio\/#\/schema\/person\/bc30f98e9cb10ae7e119dbe14bc93784\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"es\",\"@id\":\"https:\/\/www.fraczinet.cl\/sitio\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/d5ad3cf7ef3b23a2bb5be73be780c86b2fc8545c3ad6b149f3913ff458c00099?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/d5ad3cf7ef3b23a2bb5be73be780c86b2fc8545c3ad6b149f3913ff458c00099?s=96&d=mm&r=g\",\"caption\":\"admin\"},\"sameAs\":[\"https:\/\/www.fraczinet.cl\/sitio\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Erast\u00f3stenes Mid\u00f3 Hace 2000 A\u00f1os La Circunferencia De La Tierra - Nuestro Bio B\u00edo","description":"No hace falta ir al espacio para averiguar la circunferencia de la Tierra. Erast\u00f3stenes lo hizo usando la sombra que da el Sol.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.fraczinet.cl\/sitio\/2022\/11\/19\/erastostenes-mido-hace-2000-anos-la-circunferencia-de-la-tierra\/","og_locale":"es_ES","og_type":"article","og_title":"Erast\u00f3stenes Mid\u00f3 Hace 2000 A\u00f1os La Circunferencia De La Tierra - Nuestro Bio B\u00edo","og_description":"No hace falta ir al espacio para averiguar la circunferencia de la Tierra. Erast\u00f3stenes lo hizo usando la sombra que da el Sol.","og_url":"https:\/\/www.fraczinet.cl\/sitio\/2022\/11\/19\/erastostenes-mido-hace-2000-anos-la-circunferencia-de-la-tierra\/","og_site_name":"Nuestro Bio B\u00edo","article_published_time":"2022-11-19T23:23:22+00:00","article_modified_time":"2022-11-19T23:28:56+00:00","og_image":[{"width":570,"height":361,"url":"https:\/\/www.fraczinet.cl\/sitio\/wp-content\/uploads\/2022\/11\/Eratostenes-ensenando.jpeg","type":"image\/jpeg"}],"author":"admin","twitter_card":"summary_large_image","twitter_creator":"@nuestrobiobio","twitter_site":"@nuestrobiobio","twitter_misc":{"Escrito por":"admin","Tiempo de lectura":"2 minutos"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.fraczinet.cl\/sitio\/2022\/11\/19\/erastostenes-mido-hace-2000-anos-la-circunferencia-de-la-tierra\/#article","isPartOf":{"@id":"https:\/\/www.fraczinet.cl\/sitio\/2022\/11\/19\/erastostenes-mido-hace-2000-anos-la-circunferencia-de-la-tierra\/"},"author":{"name":"admin","@id":"https:\/\/www.fraczinet.cl\/sitio\/#\/schema\/person\/bc30f98e9cb10ae7e119dbe14bc93784"},"headline":"Erast\u00f3stenes Mid\u00f3 Hace 2000 A\u00f1os La Circunferencia De La Tierra","datePublished":"2022-11-19T23:23:22+00:00","dateModified":"2022-11-19T23:28:56+00:00","mainEntityOfPage":{"@id":"https:\/\/www.fraczinet.cl\/sitio\/2022\/11\/19\/erastostenes-mido-hace-2000-anos-la-circunferencia-de-la-tierra\/"},"wordCount":290,"commentCount":0,"publisher":{"@id":"https:\/\/www.fraczinet.cl\/sitio\/#\/schema\/person\/aec8ee4da68df2b9b0eefdad24a0d582"},"image":{"@id":"https:\/\/www.fraczinet.cl\/sitio\/2022\/11\/19\/erastostenes-mido-hace-2000-anos-la-circunferencia-de-la-tierra\/#primaryimage"},"thumbnailUrl":"https:\/\/www.fraczinet.cl\/sitio\/wp-content\/uploads\/2022\/11\/Eratostenes-ensenando.jpeg","articleSection":["Historia"],"inLanguage":"es","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.fraczinet.cl\/sitio\/2022\/11\/19\/erastostenes-mido-hace-2000-anos-la-circunferencia-de-la-tierra\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.fraczinet.cl\/sitio\/2022\/11\/19\/erastostenes-mido-hace-2000-anos-la-circunferencia-de-la-tierra\/","url":"https:\/\/www.fraczinet.cl\/sitio\/2022\/11\/19\/erastostenes-mido-hace-2000-anos-la-circunferencia-de-la-tierra\/","name":"Erast\u00f3stenes Mid\u00f3 Hace 2000 A\u00f1os La Circunferencia De La Tierra - Nuestro Bio B\u00edo","isPartOf":{"@id":"https:\/\/www.fraczinet.cl\/sitio\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.fraczinet.cl\/sitio\/2022\/11\/19\/erastostenes-mido-hace-2000-anos-la-circunferencia-de-la-tierra\/#primaryimage"},"image":{"@id":"https:\/\/www.fraczinet.cl\/sitio\/2022\/11\/19\/erastostenes-mido-hace-2000-anos-la-circunferencia-de-la-tierra\/#primaryimage"},"thumbnailUrl":"https:\/\/www.fraczinet.cl\/sitio\/wp-content\/uploads\/2022\/11\/Eratostenes-ensenando.jpeg","datePublished":"2022-11-19T23:23:22+00:00","dateModified":"2022-11-19T23:28:56+00:00","description":"No hace falta ir al espacio para averiguar la circunferencia de la Tierra. Erast\u00f3stenes lo hizo usando la sombra que da el Sol.","breadcrumb":{"@id":"https:\/\/www.fraczinet.cl\/sitio\/2022\/11\/19\/erastostenes-mido-hace-2000-anos-la-circunferencia-de-la-tierra\/#breadcrumb"},"inLanguage":"es","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.fraczinet.cl\/sitio\/2022\/11\/19\/erastostenes-mido-hace-2000-anos-la-circunferencia-de-la-tierra\/"]}]},{"@type":"ImageObject","inLanguage":"es","@id":"https:\/\/www.fraczinet.cl\/sitio\/2022\/11\/19\/erastostenes-mido-hace-2000-anos-la-circunferencia-de-la-tierra\/#primaryimage","url":"https:\/\/www.fraczinet.cl\/sitio\/wp-content\/uploads\/2022\/11\/Eratostenes-ensenando.jpeg","contentUrl":"https:\/\/www.fraczinet.cl\/sitio\/wp-content\/uploads\/2022\/11\/Eratostenes-ensenando.jpeg","width":570,"height":361,"caption":"Eratosthenes ense\u00f1ando en Alejandr\u00eda. Una pintura de Bernardo Strozzi."},{"@type":"BreadcrumbList","@id":"https:\/\/www.fraczinet.cl\/sitio\/2022\/11\/19\/erastostenes-mido-hace-2000-anos-la-circunferencia-de-la-tierra\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Portada","item":"https:\/\/www.fraczinet.cl\/sitio\/"},{"@type":"ListItem","position":2,"name":"Erast\u00f3stenes Mid\u00f3 Hace 2000 A\u00f1os La Circunferencia De La Tierra"}]},{"@type":"WebSite","@id":"https:\/\/www.fraczinet.cl\/sitio\/#website","url":"https:\/\/www.fraczinet.cl\/sitio\/","name":"Nuestro Bio B\u00edo","description":"Tierra de Encuentros","publisher":{"@id":"https:\/\/www.fraczinet.cl\/sitio\/#\/schema\/person\/aec8ee4da68df2b9b0eefdad24a0d582"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.fraczinet.cl\/sitio\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"es"},{"@type":["Person","Organization"],"@id":"https:\/\/www.fraczinet.cl\/sitio\/#\/schema\/person\/aec8ee4da68df2b9b0eefdad24a0d582","name":"Luis Fernando Fraczinet","image":{"@type":"ImageObject","inLanguage":"es","@id":"https:\/\/www.fraczinet.cl\/sitio\/#\/schema\/person\/image\/","url":"https:\/\/www.fraczinet.cl\/sitio\/wp-content\/uploads\/2021\/07\/bannerlogo-1.gif","contentUrl":"https:\/\/www.fraczinet.cl\/sitio\/wp-content\/uploads\/2021\/07\/bannerlogo-1.gif","width":159,"height":79,"caption":"Luis Fernando Fraczinet"},"logo":{"@id":"https:\/\/www.fraczinet.cl\/sitio\/#\/schema\/person\/image\/"},"sameAs":["https:\/\/www.fraczinet.cl\/sitio\/"]},{"@type":"Person","@id":"https:\/\/www.fraczinet.cl\/sitio\/#\/schema\/person\/bc30f98e9cb10ae7e119dbe14bc93784","name":"admin","image":{"@type":"ImageObject","inLanguage":"es","@id":"https:\/\/www.fraczinet.cl\/sitio\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/d5ad3cf7ef3b23a2bb5be73be780c86b2fc8545c3ad6b149f3913ff458c00099?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/d5ad3cf7ef3b23a2bb5be73be780c86b2fc8545c3ad6b149f3913ff458c00099?s=96&d=mm&r=g","caption":"admin"},"sameAs":["https:\/\/www.fraczinet.cl\/sitio"]}]}},"_links":{"self":[{"href":"https:\/\/www.fraczinet.cl\/sitio\/wp-json\/wp\/v2\/posts\/15153","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fraczinet.cl\/sitio\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fraczinet.cl\/sitio\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fraczinet.cl\/sitio\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fraczinet.cl\/sitio\/wp-json\/wp\/v2\/comments?post=15153"}],"version-history":[{"count":3,"href":"https:\/\/www.fraczinet.cl\/sitio\/wp-json\/wp\/v2\/posts\/15153\/revisions"}],"predecessor-version":[{"id":15161,"href":"https:\/\/www.fraczinet.cl\/sitio\/wp-json\/wp\/v2\/posts\/15153\/revisions\/15161"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fraczinet.cl\/sitio\/wp-json\/wp\/v2\/media\/15154"}],"wp:attachment":[{"href":"https:\/\/www.fraczinet.cl\/sitio\/wp-json\/wp\/v2\/media?parent=15153"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fraczinet.cl\/sitio\/wp-json\/wp\/v2\/categories?post=15153"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fraczinet.cl\/sitio\/wp-json\/wp\/v2\/tags?post=15153"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}