{"id":625,"date":"2022-03-16T23:42:26","date_gmt":"2022-03-16T22:42:26","guid":{"rendered":"https:\/\/eratosthenes.eu\/wordpress\/?page_id=625"},"modified":"2026-01-16T21:35:17","modified_gmt":"2026-01-16T20:35:17","slug":"how-big-is-our-planet","status":"publish","type":"page","link":"https:\/\/eratosthenes.eu\/wordpress\/","title":{"rendered":"How big is our planet?"},"content":{"rendered":"<div\n    \tclass=\"free align wp-block-csb-content-slider-block\"    id='csbContentSlider-1' \n    data-attributes='{&quot;slides&quot;:[{&quot;background&quot;:{&quot;color&quot;:&quot;#00000080&quot;,&quot;type&quot;:&quot;image&quot;,&quot;gradient&quot;:&quot;linear-gradient(135deg, #4527a4, #8344c5)&quot;,&quot;image&quot;:{&quot;id&quot;:508,&quot;url&quot;:&quot;https:\\\/\\\/eratosthenes.eu\\\/wordpress\\\/wp-content\\\/uploads\\\/2022\\\/02\\\/peda-1600-560.jpg&quot;,&quot;alt&quot;:&quot;&quot;,&quot;title&quot;:&quot;peda 1600-560&quot;},&quot;position&quot;:&quot;center 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class=\"wp-block-columns has-background is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\" style=\"background:linear-gradient(135deg,rgb(255,255,255) 0%,rgb(248,248,248) 100%)\">\n<div class=\"wp-block-column has-white-background-color has-background is-layout-flow wp-block-column-is-layout-flow\">\n<h4 class=\"wp-block-heading has-text-align-center\"><a href=\"https:\/\/sites.google.com\/view\/newsletters-eratosthenes\" target=\"_blank\" rel=\"noreferrer noopener\">Newsletters<\/a> <a href=\"https:\/\/perbosceratos.wixsite.com\/appli\/ephemeride\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>\u279a<\/strong><\/a><\/h4>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"508\" src=\"https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/03\/newsletters.jpg\" alt=\"\" class=\"wp-image-660\" srcset=\"https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/03\/newsletters.jpg 1000w, https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/03\/newsletters-300x152.jpg 300w, https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/03\/newsletters-768x390.jpg 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<p class=\"has-text-align-center has-medium-font-size\"><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column has-white-background-color has-background is-layout-flow wp-block-column-is-layout-flow\">\n<h4 class=\"wp-block-heading has-text-align-center\"><a href=\"https:\/\/perbosceratos.wixsite.com\/appli\/ephemeride\" target=\"_blank\" rel=\"noreferrer noopener\">Ephemeride <strong>\u279a<\/strong><\/a><\/h4>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"508\" src=\"https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/03\/ephemeride.jpg\" alt=\"\" class=\"wp-image-661\" srcset=\"https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/03\/ephemeride.jpg 1000w, https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/03\/ephemeride-300x152.jpg 300w, https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/03\/ephemeride-768x390.jpg 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<p class=\"has-text-align-center has-medium-font-size\"><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column has-white-background-color has-background is-layout-flow wp-block-column-is-layout-flow\">\n<h4 class=\"wp-block-heading has-text-align-center\"><a href=\"https:\/\/sites.google.com\/view\/eratosthenes-transdisciplinar\" target=\"_blank\" rel=\"noreferrer noopener\">Transdisciplinar activities<\/a> <a href=\"https:\/\/perbosceratos.wixsite.com\/appli\/ephemeride\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>\u279a<\/strong><\/a><\/h4>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"508\" src=\"https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/03\/transdisciplinar.jpg\" alt=\"\" class=\"wp-image-662\" srcset=\"https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/03\/transdisciplinar.jpg 1000w, https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/03\/transdisciplinar-300x152.jpg 300w, https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/03\/transdisciplinar-768x390.jpg 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<p class=\"has-text-align-center has-medium-font-size\"><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h4 class=\"wp-block-heading has-text-align-center\"><a href=\"https:\/\/perbosceratos.wixsite.com\/eratosthenes-code\" target=\"_blank\" rel=\"noreferrer noopener\">Code Week <strong>\u279a<\/strong><\/a> <\/h4>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/10\/website.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"718\" height=\"547\" src=\"https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/10\/website.jpg\" alt=\"\" class=\"wp-image-675\" srcset=\"https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/10\/website.jpg 718w, https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/10\/website-300x229.jpg 300w\" sizes=\"auto, (max-width: 718px) 100vw, 718px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h4 class=\"wp-block-heading has-text-align-center\"><a href=\"https:\/\/sites.google.com\/view\/eratosthenes-wsw\" target=\"_blank\" rel=\"noreferrer noopener\">World Space Week <strong>\u279a<\/strong><\/a> <\/h4>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/10\/wsw-logo-eratos-eu.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"954\" height=\"650\" src=\"https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/10\/wsw-logo-eratos-eu.jpg\" alt=\"\" class=\"wp-image-678\" srcset=\"https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/10\/wsw-logo-eratos-eu.jpg 954w, https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/10\/wsw-logo-eratos-eu-300x204.jpg 300w, https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/10\/wsw-logo-eratos-eu-768x523.jpg 768w\" sizes=\"auto, (max-width: 954px) 100vw, 954px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns has-background is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\" style=\"background:linear-gradient(90deg,rgb(255,255,255) 0%,rgb(0,0,0) 100%)\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.facebook.com\/groups\/Eratos\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"512\" height=\"360\" src=\"https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/03\/fb.png\" alt=\"\" class=\"wp-image-648\" srcset=\"https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/03\/fb.png 512w, https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/03\/fb-300x211.png 300w\" sizes=\"auto, (max-width: 512px) 100vw, 512px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.youtube.com\/c\/EratosthenesWorld\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"512\" height=\"360\" src=\"https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/03\/youtube.png\" alt=\"\" class=\"wp-image-649\" srcset=\"https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/03\/youtube.png 512w, https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/03\/youtube-300x211.png 300w\" sizes=\"auto, (max-width: 512px) 100vw, 512px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.flickr.com\/photos\/129846629@N04\/collections\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"512\" height=\"360\" src=\"https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/03\/flickr.png\" alt=\"\" class=\"wp-image-650\" srcset=\"https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/03\/flickr.png 512w, https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/03\/flickr-300x211.png 300w\" sizes=\"auto, (max-width: 512px) 100vw, 512px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/school-education.ec.europa.eu\/en\/etwinning\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"512\" height=\"360\" src=\"https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/03\/etw.png\" alt=\"\" class=\"wp-image-651\" srcset=\"https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/03\/etw.png 512w, https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/03\/etw-300x211.png 300w\" sizes=\"auto, (max-width: 512px) 100vw, 512px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/fondation-lamap.org\/participez\/sur-les-pas-d-eratosthene-mesurer-la-circonference-terrestre-avec-un-baton\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"512\" height=\"360\" src=\"https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/03\/lamap.png\" alt=\"\" class=\"wp-image-652\" srcset=\"https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/03\/lamap.png 512w, https:\/\/eratosthenes.eu\/wordpress\/wp-content\/uploads\/2022\/03\/lamap-300x211.png 300w\" sizes=\"auto, (max-width: 512px) 100vw, 512px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Newsletters \u279a Ephemeride \u279a Transdisciplinar activities \u279a Code Week \u279a World Space Week \u279a<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-625","page","type-page","status-publish"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.7 - 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