{"id":1190,"date":"2021-02-11T13:17:28","date_gmt":"2021-02-11T11:17:28","guid":{"rendered":"http:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/?post_type=portfolio&#038;p=1190"},"modified":"2021-02-11T13:17:28","modified_gmt":"2021-02-11T11:17:28","slug":"perpetual-swing-device","status":"publish","type":"portfolio","link":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/strumenti-en\/perpetual-swing-device\/","title":{"rendered":"Perpetual swing device"},"content":{"rendered":"<p class=\"p1\"><span class=\"s1\">The walnut-wood box contains three pairs of dry cells (so-called due to the lack of a liquid electrolyte) designed in 1812 by the Italian physicist Giuseppe Zamboni (1776-1846). These consist of a stack of paper discs, each with manganese dioxide powder glued on one face and a thin sheet of tin on the other. The discs are tied together with thin silk threads and covered with a solid insulator. The cylinders\u2019 external contacts are connected to the pile\u2019s positive and negative terminals (respectively manganese dioxide and tin) and to the two brass caps placed at the top of the glass tubes on the upper part of the instrument. There was an oscillating apparatus (now missing) between the two terminals.<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\">The instrument was part of the bequest of Francesco Maccarani (1776 \u2013 1846), who taught at the Liceo Dipartimentale in Bergamo from 1801 until 1845.<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\">Device on display.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The walnut-wood box contains three pairs of dry cells (so-called due to the lack of a liquid electrolyte) designed in [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":356,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"open","template":"","meta":{"footnotes":""},"portfolio_category":[22],"class_list":["post-1190","portfolio","type-portfolio","status-publish","has-post-thumbnail","hentry","portfolio_category-electricity"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Perpetual swing device | fisicaalmuseo.it<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/strumenti-en\/perpetual-swing-device\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Perpetual swing device | fisicaalmuseo.it\" \/>\n<meta property=\"og:description\" content=\"The walnut-wood box contains three pairs of dry cells (so-called due to the lack of a liquid electrolyte) designed in [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/strumenti-en\/perpetual-swing-device\/\" \/>\n<meta property=\"og:site_name\" content=\"fisicaalmuseo.it\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/wp-content\/uploads\/2020\/11\/13-ME_0198.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"900\" \/>\n\t<meta property=\"og:image:height\" content=\"599\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/strumenti-en\/perpetual-swing-device\/\",\"url\":\"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/strumenti-en\/perpetual-swing-device\/\",\"name\":\"Perpetual swing device | fisicaalmuseo.it\",\"isPartOf\":{\"@id\":\"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/strumenti-en\/perpetual-swing-device\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/strumenti-en\/perpetual-swing-device\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/wp-content\/uploads\/2020\/11\/13-ME_0198.jpg\",\"datePublished\":\"2021-02-11T11:17:28+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/strumenti-en\/perpetual-swing-device\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/strumenti-en\/perpetual-swing-device\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/strumenti-en\/perpetual-swing-device\/#primaryimage\",\"url\":\"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/wp-content\/uploads\/2020\/11\/13-ME_0198.jpg\",\"contentUrl\":\"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/wp-content\/uploads\/2020\/11\/13-ME_0198.jpg\",\"width\":900,\"height\":599,\"caption\":\"Apparato per l\u2019altalena perpetua\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/strumenti-en\/perpetual-swing-device\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Strumenti\",\"item\":\"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/strumenti-en\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Perpetual swing device\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/#website\",\"url\":\"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/\",\"name\":\"fisicaalmuseo.it\",\"description\":\"Gli strumenti di fisica del Museo\",\"publisher\":{\"@id\":\"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/#organization\",\"name\":\"Museo Civico di Scienze Naturali \u201cEnrico Caffi\u201d\",\"url\":\"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/wp-content\/uploads\/2020\/12\/logo-museo-blu.jpg\",\"contentUrl\":\"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/wp-content\/uploads\/2020\/12\/logo-museo-blu.jpg\",\"width\":2294,\"height\":500,\"caption\":\"Museo Civico di Scienze Naturali \u201cEnrico Caffi\u201d\"},\"image\":{\"@id\":\"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/#\/schema\/logo\/image\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Perpetual swing device | fisicaalmuseo.it","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/strumenti-en\/perpetual-swing-device\/","og_locale":"en_US","og_type":"article","og_title":"Perpetual swing device | fisicaalmuseo.it","og_description":"The walnut-wood box contains three pairs of dry cells (so-called due to the lack of a liquid electrolyte) designed in [&hellip;]","og_url":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/strumenti-en\/perpetual-swing-device\/","og_site_name":"fisicaalmuseo.it","og_image":[{"width":900,"height":599,"url":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/wp-content\/uploads\/2020\/11\/13-ME_0198.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/strumenti-en\/perpetual-swing-device\/","url":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/strumenti-en\/perpetual-swing-device\/","name":"Perpetual swing device | fisicaalmuseo.it","isPartOf":{"@id":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/strumenti-en\/perpetual-swing-device\/#primaryimage"},"image":{"@id":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/strumenti-en\/perpetual-swing-device\/#primaryimage"},"thumbnailUrl":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/wp-content\/uploads\/2020\/11\/13-ME_0198.jpg","datePublished":"2021-02-11T11:17:28+00:00","breadcrumb":{"@id":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/strumenti-en\/perpetual-swing-device\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/strumenti-en\/perpetual-swing-device\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/strumenti-en\/perpetual-swing-device\/#primaryimage","url":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/wp-content\/uploads\/2020\/11\/13-ME_0198.jpg","contentUrl":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/wp-content\/uploads\/2020\/11\/13-ME_0198.jpg","width":900,"height":599,"caption":"Apparato per l\u2019altalena perpetua"},{"@type":"BreadcrumbList","@id":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/strumenti-en\/perpetual-swing-device\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/"},{"@type":"ListItem","position":2,"name":"Strumenti","item":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/strumenti-en\/"},{"@type":"ListItem","position":3,"name":"Perpetual swing device"}]},{"@type":"WebSite","@id":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/#website","url":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/","name":"fisicaalmuseo.it","description":"Gli strumenti di fisica del Museo","publisher":{"@id":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/#organization","name":"Museo Civico di Scienze Naturali \u201cEnrico Caffi\u201d","url":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/#\/schema\/logo\/image\/","url":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/wp-content\/uploads\/2020\/12\/logo-museo-blu.jpg","contentUrl":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/wp-content\/uploads\/2020\/12\/logo-museo-blu.jpg","width":2294,"height":500,"caption":"Museo Civico di Scienze Naturali \u201cEnrico Caffi\u201d"},"image":{"@id":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/wp-json\/wp\/v2\/portfolio\/1190"}],"collection":[{"href":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/wp-json\/wp\/v2\/portfolio"}],"about":[{"href":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/wp-json\/wp\/v2\/types\/portfolio"}],"author":[{"embeddable":true,"href":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/wp-json\/wp\/v2\/comments?post=1190"}],"version-history":[{"count":5,"href":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/wp-json\/wp\/v2\/portfolio\/1190\/revisions"}],"predecessor-version":[{"id":1195,"href":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/wp-json\/wp\/v2\/portfolio\/1190\/revisions\/1195"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/wp-json\/wp\/v2\/media\/356"}],"wp:attachment":[{"href":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/wp-json\/wp\/v2\/media?parent=1190"}],"wp:term":[{"taxonomy":"portfolio_category","embeddable":true,"href":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/wp-json\/wp\/v2\/portfolio_category?post=1190"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}