{"id":43688,"date":"2017-02-22T15:14:21","date_gmt":"2017-02-22T19:14:21","guid":{"rendered":"https:\/\/brocku.ca\/brock-news\/?p=43688"},"modified":"2017-02-22T15:14:21","modified_gmt":"2017-02-22T19:14:21","slug":"nserc-video-contest-grains-chains-and-solitary-waves","status":"publish","type":"post","link":"https:\/\/brocku.ca\/brock-news\/2017\/02\/nserc-video-contest-grains-chains-and-solitary-waves\/","title":{"rendered":"NSERC VIDEO CONTEST: Grains, Chains and Solitary Waves"},"content":{"rendered":"<p>It was an endless source of fascination that sat on the desks of many executives in the late 1970s and throughout the 1980s.<\/p>\n<p><span style=\"font-weight: 400;\">With its signature row of five silver balls suspended from a metal frame, it was known as Newton\u2019s Cradle or the Executive Ball Clicker.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">When a ball was lifted at one end of the row and dropped back into place, it would cause the ball at the opposite end to swing upward while the middle balls stayed put.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Far from being just a passing fad, the desk toy illustrates the theories and principles behind PhD student Michelle Przedborski\u2019s physics research.<\/span><\/p>\n<p>She explains her work in Grains, Chains and Solitary Waves, a 60-second video she created and submitted to the NSERC (Natural Sciences and Engineering Research Council of Canada) Science, Action! Competition.<\/p>\n<p><iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/AmGPqA5Y0SU\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p><span style=\"font-weight: 400;\">Przedborski\u2019s entry, along with three others submitted by Brock students, made it into the Top 40 in the national student research contest and is in the race to make the finals.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The 25 videos with the most views on YouTube between Feb. 1 and Feb. 28 will proceed to the final round, where a panel of judges will select the winners.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Przedborski studies how energy moves through balls of various sizes.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">These balls, which can be made out of steel, rubber or any other material, are called \u2018grains\u2019 and are placed side-by-side, slightly touching in rows called \u2018chains.\u2019<\/span><\/p>\n<p><span style=\"font-weight: 400;\">When the ball on one end is hit, the force creates energy in the shape of a wave that surges through the row of balls. This energy is called a \u2018solitary wave.\u2019<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u201cI\u2019m studying how the solitary wave properties depend on the grain shapes or grain materials or other factors,\u201d Przedborski explained. \u201cIf you have softer grains, for example, then the wave travels slower.\u201d<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Knowing how and why the balls are able to slow down or speed up energy waves is crucial for the design of components, such as shock absorbers, in machinery dealing with movement.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The scope of Przedborski\u2019s work looks beyond the machinery components.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">When she snagged a prestigious Vanier Canada Graduate Scholarship back in 2013, Przedborski started out by studying superconductors \u2014 materials ranging from elements, such as aluminum and mercury to metallic alloys, to compounds, such as the high-temperature copper oxides, which show unusual electrical and magnetic properties below certain temperatures.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u201cIf superconductors were implemented into the world\u2019s electrical power grid, energy losses could be minimized,\u201d Przedborski said at the time of receiving the scholarship. \u201cThis could help to sustain the world\u2019s increasing power needs.\u201d<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Motivated by her passion for clean energy, Przedborski\u2019s research eventually led her to examine concepts of solitary wave movement.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">She sees tremendous potential in the fact that softer balls can absorb energy.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u201cThis can be used to develop energy harvesters,\u201d Przedborski said. \u201cThe idea is that you would take some ambient vibration and focus that energy to some point in the chain, where that energy will be stored.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u201cYou can connect these soft balls to an electrical setup and actually tap into that energy when you need it and convert it into some useful form.\u201d<\/span><\/p>\n<p>The 15 NSERC competition finalists will be announced no later than April 5.<\/p>\n<p><em>Editor\u2019s Note: This is the fourth\u00a0in a series of four stories profiling the four Brock University students in the running to win the NSERC (Natural Sciences and Engineering Research Council of Canada) Science, Action! competition. All four videos are available for viewing on a <a href=\"https:\/\/brocku.ca\/brock-news\/2017\/02\/views-needed-to-win-national-video-competition\/\" target=\"_blank\">recent article published in The Brock News<\/a>.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Michelle Przedborski is using a classic desk toy to illustrate the physics research she&#8217;s conducting that may someday lead to useful energy harvesters being developed.<\/p>\n","protected":false},"author":20,"featured_media":43689,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[188,41,1,4],"tags":[4955,4954,2195,4953],"_links":{"self":[{"href":"https:\/\/brocku.ca\/brock-news\/wp-json\/wp\/v2\/posts\/43688"}],"collection":[{"href":"https:\/\/brocku.ca\/brock-news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/brocku.ca\/brock-news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/brocku.ca\/brock-news\/wp-json\/wp\/v2\/users\/20"}],"replies":[{"embeddable":true,"href":"https:\/\/brocku.ca\/brock-news\/wp-json\/wp\/v2\/comments?post=43688"}],"version-history":[{"count":1,"href":"https:\/\/brocku.ca\/brock-news\/wp-json\/wp\/v2\/posts\/43688\/revisions"}],"predecessor-version":[{"id":43690,"href":"https:\/\/brocku.ca\/brock-news\/wp-json\/wp\/v2\/posts\/43688\/revisions\/43690"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/brocku.ca\/brock-news\/wp-json\/wp\/v2\/media\/43689"}],"wp:attachment":[{"href":"https:\/\/brocku.ca\/brock-news\/wp-json\/wp\/v2\/media?parent=43688"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/brocku.ca\/brock-news\/wp-json\/wp\/v2\/categories?post=43688"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/brocku.ca\/brock-news\/wp-json\/wp\/v2\/tags?post=43688"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}