{"id":2751,"date":"2013-05-31T17:01:22","date_gmt":"2013-05-31T12:01:22","guid":{"rendered":"http:\/\/www.cawater-info.net\/all_about_water\/en\/?p=2751"},"modified":"2013-05-31T17:21:53","modified_gmt":"2013-05-31T12:21:53","slug":"science-off-the-sphere-astro-puffs","status":"publish","type":"post","link":"http:\/\/www.cawater-info.net\/all_about_water\/en\/?p=2751","title":{"rendered":"Science off the Sphere: Astro Puffs"},"content":{"rendered":"<p><em>Astronaut and chemist Dr. Don Pettit does physics demos that are out of this world. Currently on board the International Space Station, Dr. Pettit presents fantastic physics that can only be demonstrated in micro-gravity.<\/em><\/p>\n<p style=\"text-align: center;\"><a href=\"http:\/\/www.cawater-info.net\/all_about_water\/en\/wp-content\/uploads\/2013\/05\/Astro-Puffs.jpg\"><img loading=\"lazy\" class=\"aligncenter size-full wp-image-2755 colorbox-2751\" alt=\"Astro-Puffs\" src=\"http:\/\/www.cawater-info.net\/all_about_water\/en\/wp-content\/uploads\/2013\/05\/Astro-Puffs.jpg\" width=\"512\" height=\"288\" srcset=\"http:\/\/www.cawater-info.net\/all_about_water\/en\/wp-content\/uploads\/2013\/05\/Astro-Puffs.jpg 512w, http:\/\/www.cawater-info.net\/all_about_water\/en\/wp-content\/uploads\/2013\/05\/Astro-Puffs-300x168.jpg 300w\" sizes=\"(max-width: 512px) 100vw, 512px\" \/><\/a><\/p>\n<p style=\"text-align: center;\"><strong>Episode 13: Astro Puffs<\/strong><\/p>\n<p><strong>Challenge Question:<\/strong>\u00a0How does volume affect how the spheres react to the waves?<!--more--><\/p>\n<p><strong>Challenge Answer:<\/strong>\u00a0As the volume of the sphere increases, the mass increases and the sphere will have more inertia. More of the momentum from the shot of air will go towards creating waves and less towards moving the sphere. The greater body oscillations will make more water recoil backwards than in the case of lower volume. Also, the surface oscillations will take longer to travel to the back of the sphere.<\/p>\n<p>Challenge Winner: Daniel Chamudot, Riverdale, NY<\/p>\n<div align=\"center\">\n<table width=\"10%\" border=\"0\">\n<tbody>\n<tr>\n<td colspan=\"3\" bgcolor=\"#CCCCCC\"><strong>VIDEO<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"1\" height=\"150\"><\/td>\n<td style=\"text-align: center;\" width=\"200\">[cvg-video videoId=&#8217;7&#8242; width=&#8217;525&#8242; height=&#8217;400&#8242; \/]<\/td>\n<td style=\"text-align: center;\" width=\"1\"><\/td>\n<\/tr>\n<tr>\n<td colspan=\"3\" bgcolor=\"#CCCCCC\">\n<div align=\"center\"><strong>For video viewing click on a picture<\/strong><\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p style=\"text-align: right;\">Source:\u00a0<a href=\"http:\/\/physicscentral.com\/explore\/sots\/episode13.cfm\" target=\"_blank\">http:\/\/physicscentral.com\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Astronaut and chemist Dr. Don Pettit does physics demos that are out of this world. Currently on board the International Space Station, Dr. Pettit presents fantastic physics that can only be demonstrated in micro-gravity. Episode 13: Astro Puffs Challenge Question:\u00a0How does volume affect how the spheres react to the waves?<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[4],"tags":[],"amp_enabled":true,"_links":{"self":[{"href":"http:\/\/www.cawater-info.net\/all_about_water\/en\/index.php?rest_route=\/wp\/v2\/posts\/2751"}],"collection":[{"href":"http:\/\/www.cawater-info.net\/all_about_water\/en\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.cawater-info.net\/all_about_water\/en\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.cawater-info.net\/all_about_water\/en\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.cawater-info.net\/all_about_water\/en\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2751"}],"version-history":[{"count":0,"href":"http:\/\/www.cawater-info.net\/all_about_water\/en\/index.php?rest_route=\/wp\/v2\/posts\/2751\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.cawater-info.net\/all_about_water\/en\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2751"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.cawater-info.net\/all_about_water\/en\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2751"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.cawater-info.net\/all_about_water\/en\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2751"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}