{"id":319009,"date":"2016-11-07T03:00:00","date_gmt":"2016-11-07T00:00:00","guid":{"rendered":"https:\/\/www.fyysika.ee\/?guid=9b9b9d14059e9b9b25491423d365e133"},"modified":"2016-11-07T03:00:00","modified_gmt":"2016-11-07T00:00:00","slug":"the-role-of-emissivity-during-the-cooling-of-a-body-an-experimental-design-for-a-laboratoryclassroom-2","status":"publish","type":"post","link":"https:\/\/www.fyysika.ee\/?p=319009","title":{"rendered":"The role of emissivity during the cooling of a body: an experimental design for a laboratory\r\nclassroom"},"content":{"rendered":"<p>Mechanisms of heat transfer and Newton\u2019s law of cooling are introduced in the first physics and<br \/>\nbiophysics courses for a number of university science majors. Several papers have commented on the<br \/>\nderivation of the exponential decay and validity of this law. However, the description of the<br \/>\nphenomena is traditionally described without consideration of basic factors that contribute to the<br \/>\ncooling rate of a body. One of these key factors is the emissivity of the body, which requires<br \/>\nspecific instrumentation to be measured. In particular, we present in this paper an experiment to<br \/>\nrecord the cooling temperatures of an avian egg by means of a thermal camera. The objective is to<br \/>\ncomment on the dependence of the cooling process on emissivity, and then propose a methodology for<br \/>\nestimating the emissivity of the cooling object. The method can be applied a priori to other bodies<br \/>\nand is suitable for a biophysics laboratory classroom in higher education.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mechanisms of heat transfer and Newton\u2019s law of cooling are introduced in the first physics and<br \/>\nbiophysics courses for a number of university science majors. Several papers have commented on the<br \/>\nderivation of the exponential decay and validity of t&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[178],"tags":[],"class_list":{"0":"post-319009","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-rss-fuusikaharidus","7":"entry"},"_links":{"self":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/319009","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=319009"}],"version-history":[{"count":0,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/319009\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=319009"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=319009"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=319009"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}