{"id":1943,"date":"2012-09-27T12:00:42","date_gmt":"2012-09-27T18:00:42","guid":{"rendered":"https:\/\/blogs.ubc.ca\/mmilner\/?p=1943"},"modified":"2012-09-27T12:03:02","modified_gmt":"2012-09-27T18:03:02","slug":"playing-with-iron-fillings","status":"publish","type":"post","link":"https:\/\/blogs.ubc.ca\/mmilner\/2012\/09\/27\/playing-with-iron-fillings\/","title":{"rendered":"Playing with Iron Fillings"},"content":{"rendered":"<p>I teach a physics methods course for future physics teachers and it makes me think about different ideas and concepts we encounter while learning physics. As I was thinking of how we help our students to visualize the invisible, I started playing with iron fillings suspended it oil. I placed a magnet in the centre of the oil filled box and observed how the 3D shape was formed. I could only imagine how Michael Faraday felt when he came up with the idea of magnetic field lines&#8230;<\/p>\n<p><a href=\"https:\/\/blogs.ubc.ca\/mmilner\/files\/2012\/09\/Figure-23-2b.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-1944 alignright\" title=\"Iron fillings suspended in oil.\" src=\"https:\/\/blogs.ubc.ca\/mmilner\/files\/2012\/09\/Figure-23-2b-224x300.jpg\" alt=\"\" width=\"224\" height=\"300\" srcset=\"https:\/\/blogs.ubc.ca\/mmilner\/files\/2012\/09\/Figure-23-2b-224x300.jpg 224w, https:\/\/blogs.ubc.ca\/mmilner\/files\/2012\/09\/Figure-23-2b-768x1024.jpg 768w\" sizes=\"auto, (max-width: 224px) 100vw, 224px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I teach a physics methods course for future physics teachers and it makes me think about different ideas and concepts we encounter while learning physics. As I was thinking of how we help our students to visualize the invisible, I&#8230; <a href=\"https:\/\/blogs.ubc.ca\/mmilner\/2012\/09\/27\/playing-with-iron-fillings\/\" class=\"readmore\">Read more<span class=\"screen-reader-text\">Playing with Iron Fillings<\/span><span class=\"fa fa-angle-double-right\" aria-hidden=\"true\"><\/span><\/a><\/p>\n","protected":false},"author":1525,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6989,6981,6696,236253,2708],"tags":[],"class_list":["post-1943","post","type-post","status-publish","format-standard","hentry","category-general-teaching","category-interactivity-in-the-classroom","category-science-education","category-science-in-everyday-life","category-teacher-education","content-layout-excerpt-thumb"],"_links":{"self":[{"href":"https:\/\/blogs.ubc.ca\/mmilner\/wp-json\/wp\/v2\/posts\/1943","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.ubc.ca\/mmilner\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.ubc.ca\/mmilner\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.ubc.ca\/mmilner\/wp-json\/wp\/v2\/users\/1525"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.ubc.ca\/mmilner\/wp-json\/wp\/v2\/comments?post=1943"}],"version-history":[{"count":5,"href":"https:\/\/blogs.ubc.ca\/mmilner\/wp-json\/wp\/v2\/posts\/1943\/revisions"}],"predecessor-version":[{"id":1948,"href":"https:\/\/blogs.ubc.ca\/mmilner\/wp-json\/wp\/v2\/posts\/1943\/revisions\/1948"}],"wp:attachment":[{"href":"https:\/\/blogs.ubc.ca\/mmilner\/wp-json\/wp\/v2\/media?parent=1943"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.ubc.ca\/mmilner\/wp-json\/wp\/v2\/categories?post=1943"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.ubc.ca\/mmilner\/wp-json\/wp\/v2\/tags?post=1943"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}