{"id":407873,"date":"2017-05-12T02:00:00","date_gmt":"2017-05-11T23:00:00","guid":{"rendered":"https:\/\/www.fyysika.ee\/?guid=a7698bd6dcd72934055b8055355145b3"},"modified":"2017-05-12T02:00:00","modified_gmt":"2017-05-11T23:00:00","slug":"measurements-of-drag-and-lift-on-smooth-balls-in-flight-2","status":"publish","type":"post","link":"https:\/\/www.fyysika.ee\/?p=407873","title":{"rendered":"Measurements of drag and lift on smooth balls in flight"},"content":{"rendered":"<p>Measurements are presented on the drag and lift coefficients for three relatively smooth balls<br \/>\nlaunched in air and tracked with two cameras separated horizontally by 6.4 m. The ball spin was<br \/>\nvaried in order to investigate whether the Magnus force would increase or decrease when the ball<br \/>\nspin was increased. For one ball, the Magnus force increased. For another ball, the Magnus force<br \/>\ndecreased almost to zero after reaching a maximum. For the third ball, the Magnus force was negative<br \/>\nat low ball spins and positive at high ball spins. For one of the balls, the ball spin increased<br \/>\nwith time as it travelled through the air.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Measurements are presented on the drag and lift coefficients for three relatively smooth balls<br \/>\nlaunched in air and tracked with two cameras separated horizontally by 6.4 m. The ball spin was<br \/>\nvaried in order to investigate whether the Magnus force wou&#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-407873","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\/407873","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=407873"}],"version-history":[{"count":0,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/407873\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=407873"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=407873"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=407873"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}