{"id":1630,"date":"2013-05-01T18:30:20","date_gmt":"2013-05-01T18:30:20","guid":{"rendered":"http:\/\/artscistaging1.case.edu\/?p=1630"},"modified":"2017-01-24T21:07:03","modified_gmt":"2017-01-24T21:07:03","slug":"conductors-as-a-model-for-elliptical-coffee-stains","status":"publish","type":"post","link":"https:\/\/casgroups.case.edu\/physics-senior-projects\/conductors-as-a-model-for-elliptical-coffee-stains\/","title":{"rendered":"Conductors as a model for elliptical coffee stains"},"content":{"rendered":"<h3 style=\"text-align: center\">Mason Eastman with Harsh Mathur<\/h3>\n<h3 style=\"text-align: center\">Conductors as a model for elliptical coffee stains<\/h3>\n<div class=\"panel panel-default\">\n\t\t\t\t<div class=\"panel-heading\">\n\t\t\t\t\t<h4 class=\"panel-title\">\n\t\t\t\t\t\t<a class=\"collapsed\" data-toggle=\"collapse\" data-parent=\"#single-collapse\" href=\"#single-collapse-0\">\u201dPoster\u201d<\/a>\n\t\t\t\t\t<\/h4>\n\t\t\t\t<\/div>\n\t\t\t\t<div id=\"single-collapse-0\" class=\"panel-collapse collapse\">\n\t\t\t\t\t<div class=\"panel-body\">\n<p><img loading=\"lazy\" class=\"alignnone size-full wp-image-2070\" src=\"https:\/\/artscimedia.case.edu\/wp-content\/uploads\/sites\/176\/2013\/05\/15022519\/Eastman-Mathur-2013.jpg\" alt=\"Microsoft PowerPoint - Time-delay poster 2nd draft\" width=\"3300\" height=\"2475\" srcset=\"https:\/\/artscimedia.case.edu\/wp-content\/uploads\/sites\/176\/2013\/05\/15022519\/Eastman-Mathur-2013.jpg 3300w, https:\/\/artscimedia.case.edu\/wp-content\/uploads\/sites\/176\/2013\/05\/15022519\/Eastman-Mathur-2013-300x225.jpg 300w, https:\/\/artscimedia.case.edu\/wp-content\/uploads\/sites\/176\/2013\/05\/15022519\/Eastman-Mathur-2013-768x576.jpg 768w, https:\/\/artscimedia.case.edu\/wp-content\/uploads\/sites\/176\/2013\/05\/15022519\/Eastman-Mathur-2013-1024x768.jpg 1024w, https:\/\/artscimedia.case.edu\/wp-content\/uploads\/sites\/176\/2013\/05\/15022519\/Eastman-Mathur-2013-500x375.jpg 500w\" sizes=\"(max-width: 3300px) 100vw, 3300px\" \/><\/p>\n<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n<p>In electrostatics, conductors exhibit a number of interesting properties. Among these is the \u2018lightning rod\u2019 effect, whereby electric fields are significantly greater near areas of high curvature. In 1997, Nagel et al. published a paper likening the behavior of a spilled liquid on a surface \u2013 e.g., a drop of coffee on a table \u2013 to a conductor. When a drop of coffee is spilled, the water evaporates in such a way that the remaining solute is concentrated on the boundary in a way analogous to the \u2018lightning rod\u2019 effect. We will extend this idea to an elliptical, rather than spherical, drop by applying mathematical models and simulations. We expect a higher concentration of solute on the areas of higher curvature.<\/p>\n<p style=\"text-align: center\"><a href=\"https:\/\/artscimedia.case.edu\/wp-content\/uploads\/sites\/176\/2013\/05\/15022539\/Eastman-Mathur-2013.pdf\" target=\"_blank\">Paper<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mason Eastman with Harsh Mathur<br \/>\nConductors as a model for elliptical coffee stains<\/p>\n<p>In electrostatics, conductors exhibit a number of interesting properties. Among these is the \u2018lightning rod\u2019 effect, whereby electric fields are significantly greater near areas of high curvature. In 1997, Nagel et al. published a paper likening the behavior of a spilled liquid on a surface \u2013 e.g., a drop of coffee on a table \u2013 to a conductor. When a drop of coffee is spilled, the water evaporates in such a way that the remaining solute is concentrated on the boundary in a way analogous to the \u2018lightning rod\u2019 effect.<\/p>\n<p><a href=\"https:\/\/casgroups.case.edu\/physics-senior-projects\/conductors-as-a-model-for-elliptical-coffee-stains\/\" class=\"more-link\">Continue reading&#8230; <span class=\"screen-reader-text\">Conductors as a model for elliptical coffee stains<\/span><\/a><\/p>\n","protected":false},"author":245,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"spay_email":""},"categories":[45,1,35,5,11,19],"tags":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/casgroups.case.edu\/physics-senior-projects\/wp-json\/wp\/v2\/posts\/1630"}],"collection":[{"href":"https:\/\/casgroups.case.edu\/physics-senior-projects\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/casgroups.case.edu\/physics-senior-projects\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/casgroups.case.edu\/physics-senior-projects\/wp-json\/wp\/v2\/users\/245"}],"replies":[{"embeddable":true,"href":"https:\/\/casgroups.case.edu\/physics-senior-projects\/wp-json\/wp\/v2\/comments?post=1630"}],"version-history":[{"count":10,"href":"https:\/\/casgroups.case.edu\/physics-senior-projects\/wp-json\/wp\/v2\/posts\/1630\/revisions"}],"predecessor-version":[{"id":3018,"href":"https:\/\/casgroups.case.edu\/physics-senior-projects\/wp-json\/wp\/v2\/posts\/1630\/revisions\/3018"}],"wp:attachment":[{"href":"https:\/\/casgroups.case.edu\/physics-senior-projects\/wp-json\/wp\/v2\/media?parent=1630"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casgroups.case.edu\/physics-senior-projects\/wp-json\/wp\/v2\/categories?post=1630"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casgroups.case.edu\/physics-senior-projects\/wp-json\/wp\/v2\/tags?post=1630"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}