{"id":3628,"date":"2009-09-15T03:00:14","date_gmt":"2009-09-15T08:00:14","guid":{"rendered":"http:\/\/blogs.scienceforums.net\/swansont\/?p=3628"},"modified":"2009-09-15T03:00:14","modified_gmt":"2009-09-15T08:00:14","slug":"pink-and-green","status":"publish","type":"post","link":"http:\/\/blogs.scienceforums.net\/swansont\/archives\/3628","title":{"rendered":"Pink and Green"},"content":{"rendered":"<p><a href=\"http:\/\/juliensorelsblog.blogspot.com\/2009\/09\/pink-green.html\">Pink, green<\/a><\/p>\n<p>There is no <del datetime=\"2009-09-14T17:40:47+00:00\">spoon<\/del> green dot.  It&#8217;s an afterimage from seeing the pink.<\/p>\n<p>Things to add  \u2014 if you look away, you&#8217;ll see green afterimages.  Also, if you stare at <em>any<\/em> of the pink dots for a while, they (or the rest) will still tend to disappear.  When you stare at one point, images can fade, especially if they are dim and away from the point at which you are looking, which is a problem in astronomy \u2014 you&#8217;re looking at a dim star, and it has a tendency to just disappear.  This, I&#8217;ve learned, is called <a href=\"http:\/\/en.wikipedia.org\/wiki\/Troxler's_fading\">Troxler&#8217;s fading<\/a> (the wikipedia page uses this illusion as an example).  We normally don&#8217;t experience this, because we tend to move our eyes a few times per second.<\/p>\n<p>Update:  The &#8220;pink, green&#8221; link is dead, so try this one :  <a href=\"http:\/\/en.wikipedia.org\/wiki\/Lilac_chaser\">Lilac chaser<\/a> <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pink, green There is no spoon green dot. It&#8217;s an afterimage from seeing the pink. Things to add \u2014 if you look away, you&#8217;ll see green afterimages. Also, if you stare at any of the pink dots for a while, &hellip; <a href=\"http:\/\/blogs.scienceforums.net\/swansont\/archives\/3628\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,23,39],"tags":[],"class_list":["post-3628","post","type-post","status-publish","format-standard","hentry","category-body","category-illusions","category-physics"],"_links":{"self":[{"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/posts\/3628","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/comments?post=3628"}],"version-history":[{"count":0,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/posts\/3628\/revisions"}],"wp:attachment":[{"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/media?parent=3628"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/categories?post=3628"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/tags?post=3628"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}