{"id":6160,"date":"2020-03-24T15:08:34","date_gmt":"2020-03-24T20:08:34","guid":{"rendered":"https:\/\/www.rushworth.us\/lisa\/?p=6160"},"modified":"2020-04-07T09:59:20","modified_gmt":"2020-04-07T14:59:20","slug":"potato-powered","status":"publish","type":"post","link":"https:\/\/www.rushworth.us\/lisa\/?p=6160","title":{"rendered":"Science Experiment: Potato Powered"},"content":{"rendered":"<p>I came up with a bunch of science experiments for Anya&#8217;s covid not-a-break. Some are really straight-forward, some are open-ended design challenges, and some are pretty tricky. I <em>thought<\/em> the potato powered LED experiment was straight-forward. A list of materials, step-by-step instructions, and a clear visual product. Except &#8230; one potato generated like 0.8 volts. Cut the potato in half, get some extra clips, and we&#8217;re up to 1.6 volts.<\/p>\n<p>I&#8217;d read about a research project where <a href=\"https:\/\/pdfs.semanticscholar.org\/da0e\/f4972c6b05844f883986f6bad0a7b9a3ff69.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">energy production was increased by using a boiled potato<\/a> &#8230; I needed to make lunch anyway, so I boiled a bit of potato. I also microwaved another bit of the potato &#8212; so we&#8217;ve got two raw quarters, a boiled quarter, and a microwaved quarter. All four produced about 0.8 volts. In combination, this <em>was<\/em> enough to light up an LED.<\/p>\n<p><a href=\"https:\/\/www.rushworth.us\/lisa\/?attachment_id=6229\" rel=\"attachment wp-att-6229\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-6229\" src=\"https:\/\/www.rushworth.us\/lisa\/wp-content\/uploads\/2020\/03\/IMG_20200325_112950.jpg\" alt=\"\" width=\"1024\" height=\"768\" srcset=\"https:\/\/www.rushworth.us\/lisa\/wp-content\/uploads\/2020\/03\/IMG_20200325_112950.jpg 1024w, https:\/\/www.rushworth.us\/lisa\/wp-content\/uploads\/2020\/03\/IMG_20200325_112950-300x225.jpg 300w, https:\/\/www.rushworth.us\/lisa\/wp-content\/uploads\/2020\/03\/IMG_20200325_112950-768x576.jpg 768w, https:\/\/www.rushworth.us\/lisa\/wp-content\/uploads\/2020\/03\/IMG_20200325_112950-750x563.jpg 750w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/p>\n<p>Reading the article, it looks like Wh capacity is what is increasing &#8230; not output voltage. Connecting all four quarters (plus finding more pennies, nails, and clips) produced enough power to light up our LED. Now we&#8217;re seeing how long the potato-powered LED lasts. From 3PM on 24 March 2020 until &#8230; well, it needed to get cleaned up on 26 March as the potatoes started getting dodgy.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I came up with a bunch of science experiments for Anya&#8217;s covid not-a-break. Some are really straight-forward, some are open-ended design challenges, and some are pretty tricky. I thought the potato powered LED experiment was straight-forward. A list of materials, step-by-step instructions, and a clear visual product. Except &#8230; one potato generated like 0.8 volts. &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[507],"tags":[938,941],"class_list":["post-6160","post","type-post","status-publish","format-standard","hentry","category-parenting","tag-science-education","tag-science-experiment"],"_links":{"self":[{"href":"https:\/\/www.rushworth.us\/lisa\/index.php?rest_route=\/wp\/v2\/posts\/6160","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.rushworth.us\/lisa\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.rushworth.us\/lisa\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.rushworth.us\/lisa\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.rushworth.us\/lisa\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6160"}],"version-history":[{"count":4,"href":"https:\/\/www.rushworth.us\/lisa\/index.php?rest_route=\/wp\/v2\/posts\/6160\/revisions"}],"predecessor-version":[{"id":6235,"href":"https:\/\/www.rushworth.us\/lisa\/index.php?rest_route=\/wp\/v2\/posts\/6160\/revisions\/6235"}],"wp:attachment":[{"href":"https:\/\/www.rushworth.us\/lisa\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6160"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.rushworth.us\/lisa\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6160"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.rushworth.us\/lisa\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6160"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}