{"id":1329,"date":"2014-02-16T14:09:48","date_gmt":"2014-02-16T13:09:48","guid":{"rendered":"http:\/\/www.sciencetronics.com\/greenphotons\/?p=1329"},"modified":"2025-06-16T18:38:09","modified_gmt":"2025-06-16T16:38:09","slug":"optical-illusions","status":"publish","type":"post","link":"https:\/\/www.sciencetronics.com\/greenphotons\/?p=1329","title":{"rendered":"Optical illusions"},"content":{"rendered":"<p>On <a href=\"http:\/\/www.nationalgeographic.com\/\" target=\"_blank\">National Geographic<\/a> there is right now a science show called <a href=\"http:\/\/braingames.nationalgeographic.com\" target=\"_blank\">Brain Games<\/a>. Even though a lot of the contents is not new, there was one optical illusion which really fascinated me:<\/p>\n<figure id=\"attachment_1330\" aria-describedby=\"caption-attachment-1330\" style=\"width: 700px\" class=\"wp-caption alignright\"><a href=\"http:\/\/www.moillusions.com\/in-which-direction-do-they-spin\/\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.sciencetronics.com\/greenphotons\/wp-content\/uploads\/2014\/02\/Rotating-dots_v05-sh.gif\" alt=\"Which direction are the black and white balls moving?\" width=\"700\" height=\"480\" class=\"size-full wp-image-1330\" \/><\/a><figcaption id=\"caption-attachment-1330\" class=\"wp-caption-text\">Which direction are the black and white balls moving?<\/figcaption><\/figure>\n<p>Look at the full image, look at the red circle, look at the yellow circle&#8230;<\/p>\n<p>(image found at <a href=\"http:\/\/www.moillusions.com\/\" title=\"Mighty Optical Illusions\" target=\"_blank\">Mighty Optical Illusions<\/a>)<\/p>\n<p><!--more--><\/p>\n","protected":false},"excerpt":{"rendered":"<p>On National Geographic there is right now a science show called Brain Games. Even though a lot of the contents is not new, there was one optical illusion which really fascinated me: Look at the full image, look at the red circle, look at the yellow circle&#8230; (image found at Mighty Optical Illusions)<\/p>\n","protected":false},"author":1,"featured_media":1330,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"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,"enabled":false},"version":2}},"categories":[29,27],"tags":[],"class_list":["post-1329","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-media_en","category-science_en","entry","has-media"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/www.sciencetronics.com\/greenphotons\/wp-content\/uploads\/2014\/02\/Rotating-dots_v05-sh.gif","jetpack_shortlink":"https:\/\/wp.me\/p48grL-lr","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.sciencetronics.com\/greenphotons\/index.php?rest_route=\/wp\/v2\/posts\/1329","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sciencetronics.com\/greenphotons\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sciencetronics.com\/greenphotons\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sciencetronics.com\/greenphotons\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sciencetronics.com\/greenphotons\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1329"}],"version-history":[{"count":4,"href":"https:\/\/www.sciencetronics.com\/greenphotons\/index.php?rest_route=\/wp\/v2\/posts\/1329\/revisions"}],"predecessor-version":[{"id":2437,"href":"https:\/\/www.sciencetronics.com\/greenphotons\/index.php?rest_route=\/wp\/v2\/posts\/1329\/revisions\/2437"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.sciencetronics.com\/greenphotons\/index.php?rest_route=\/wp\/v2\/media\/1330"}],"wp:attachment":[{"href":"https:\/\/www.sciencetronics.com\/greenphotons\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1329"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sciencetronics.com\/greenphotons\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1329"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sciencetronics.com\/greenphotons\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1329"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}