{"id":1146,"date":"2023-09-23T22:14:36","date_gmt":"2023-09-23T20:14:36","guid":{"rendered":"https:\/\/fabiomelicianiscience.com\/?p=1146"},"modified":"2023-12-02T13:25:52","modified_gmt":"2023-12-02T12:25:52","slug":"quincunx-colursudoku-spider-web","status":"publish","type":"post","link":"https:\/\/www.din.usi.ch\/blog\/2023\/09\/23\/quincunx-colursudoku-spider-web\/","title":{"rendered":"Galton board"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"1146\" class=\"elementor elementor-1146\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-13acb9d4 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"13acb9d4\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2a57a036\" data-id=\"2a57a036\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-44a50013 elementor-widget elementor-widget-text-editor\" data-id=\"44a50013\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.16.0 - 20-09-2023 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p>The Galton board or Galton machine (<b>QUINCUNX<\/b>) is named after Sir Francis Galton, an English mathematician and statistician who developed it in the late 19th century to explain some statistical concepts. Sir Francis Galton was a cousin of Charles Darwin and was greatly influenced by Darwin&#8217;s work on evolution and natural selection. QUINCUNX: The word comes from the Latin &#8216;quinque,&#8217; five. The distribution of the pegs resembles that of the dots on the No. 5 face of a die.<\/p>\n<figure>\n<p><!-- \/wp:image --><\/p>\n<\/figure>\n<p><!-- \/wp:gallery --><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-986bb26 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"986bb26\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-fbe29b4\" data-id=\"fbe29b4\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-75cc134 elementor-arrows-position-inside elementor-pagination-position-outside elementor-widget elementor-widget-image-carousel\" data-id=\"75cc134\" data-element_type=\"widget\" data-settings=\"{&quot;slides_to_show&quot;:&quot;2&quot;,&quot;navigation&quot;:&quot;both&quot;,&quot;autoplay&quot;:&quot;yes&quot;,&quot;pause_on_hover&quot;:&quot;yes&quot;,&quot;pause_on_interaction&quot;:&quot;yes&quot;,&quot;autoplay_speed&quot;:5000,&quot;infinite&quot;:&quot;yes&quot;,&quot;speed&quot;:500,&quot;image_spacing_custom&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:20,&quot;sizes&quot;:[]},&quot;image_spacing_custom_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;image_spacing_custom_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"image-carousel.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.16.0 - 20-09-2023 *\/\n.elementor-widget-image-carousel .swiper,.elementor-widget-image-carousel .swiper-container{position:static}.elementor-widget-image-carousel .swiper-container .swiper-slide figure,.elementor-widget-image-carousel .swiper .swiper-slide figure{line-height:inherit}.elementor-widget-image-carousel .swiper-slide{text-align:center}.elementor-image-carousel-wrapper:not(.swiper-container-initialized):not(.swiper-initialized) .swiper-slide{max-width:calc(100% \/ var(--e-image-carousel-slides-to-show, 3))}<\/style>\t\t<div class=\"elementor-image-carousel-wrapper swiper-container\" dir=\"ltr\">\n\t\t\t<div class=\"elementor-image-carousel swiper-wrapper swiper-image-stretch\" aria-live=\"off\">\n\t\t\t\t\t\t\t\t<div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"1 of 17\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/www.din.usi.ch\/blog\/wp-content\/uploads\/2023\/09\/PHOTO_quincunx_17-640x640.png\" alt=\"PHOTO_quincunx_17\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"2 of 17\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/www.din.usi.ch\/blog\/wp-content\/uploads\/2023\/09\/PHOTO_quincunx_16-640x640.jpg\" alt=\"PHOTO_quincunx_16\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"3 of 17\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/www.din.usi.ch\/blog\/wp-content\/uploads\/2023\/09\/PHOTO_quincunx_11-640x640.jpg\" alt=\"PHOTO_quincunx_11\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"4 of 17\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/www.din.usi.ch\/blog\/wp-content\/uploads\/2023\/09\/PHOTO_quincunx_12-640x640.jpg\" alt=\"PHOTO_quincunx_12\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"5 of 17\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/www.din.usi.ch\/blog\/wp-content\/uploads\/2023\/09\/PHOTO_quincunx_13-640x640.jpg\" alt=\"PHOTO_quincunx_13\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"6 of 17\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/www.din.usi.ch\/blog\/wp-content\/uploads\/2023\/09\/PHOTO_quincunx_1-640x640.jpg\" alt=\"PHOTO_quincunx_1\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"7 of 17\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/www.din.usi.ch\/blog\/wp-content\/uploads\/2023\/09\/PHOTO_quincunx_14-640x640.jpg\" alt=\"PHOTO_quincunx_14\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"8 of 17\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/www.din.usi.ch\/blog\/wp-content\/uploads\/2023\/09\/PHOTO_quincunx_9-640x640.jpg\" alt=\"PHOTO_quincunx_9\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"9 of 17\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/www.din.usi.ch\/blog\/wp-content\/uploads\/2023\/09\/PHOTO_quincunx_15-640x640.jpg\" alt=\"PHOTO_quincunx_15\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"10 of 17\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/www.din.usi.ch\/blog\/wp-content\/uploads\/2023\/09\/PHOTO_quincunx_2-640x640.jpg\" alt=\"PHOTO_quincunx_2\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"11 of 17\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/www.din.usi.ch\/blog\/wp-content\/uploads\/2023\/09\/PHOTO_quincunx_4-640x640.jpg\" alt=\"PHOTO_quincunx_4\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"12 of 17\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/www.din.usi.ch\/blog\/wp-content\/uploads\/2023\/09\/PHOTO_quincunx_3-640x640.jpg\" alt=\"PHOTO_quincunx_3\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"13 of 17\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/www.din.usi.ch\/blog\/wp-content\/uploads\/2023\/09\/PHOTO_quincunx_6-640x640.jpg\" alt=\"PHOTO_quincunx_6\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"14 of 17\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/www.din.usi.ch\/blog\/wp-content\/uploads\/2023\/09\/PHOTO_quincunx_7-640x640.jpg\" alt=\"PHOTO_quincunx_7\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"15 of 17\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/www.din.usi.ch\/blog\/wp-content\/uploads\/2023\/09\/PHOTO_quincunx_5-640x640.jpg\" alt=\"PHOTO_quincunx_5\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"16 of 17\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/www.din.usi.ch\/blog\/wp-content\/uploads\/2023\/09\/PHOTO_quincunx_8-640x640.jpg\" alt=\"PHOTO_quincunx_8\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"17 of 17\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/www.din.usi.ch\/blog\/wp-content\/uploads\/2023\/09\/DIN_GALTON_BOARD_version_2-640x640.jpg\" alt=\"DIN_GALTON_BOARD_version_2\" \/><\/figure><\/div>\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-swiper-button elementor-swiper-button-prev\" role=\"button\" tabindex=\"0\">\n\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-angle-double-left\"><\/i>\t\t\t\t\t<\/div>\n\t\t\t\t\t<div class=\"elementor-swiper-button elementor-swiper-button-next\" role=\"button\" tabindex=\"0\">\n\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-angle-double-right\"><\/i>\t\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<div class=\"swiper-pagination\"><\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-ba4eb8c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ba4eb8c\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-dca044a\" data-id=\"dca044a\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a5a6dd3 elementor-widget elementor-widget-heading\" data-id=\"a5a6dd3\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.16.0 - 20-09-2023 *\/\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h2 class=\"elementor-heading-title elementor-size-default\">How to play<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2a13df1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2a13df1\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-7da9632\" data-id=\"7da9632\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-cd996a1 elementor-widget elementor-widget-text-editor\" data-id=\"cd996a1\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Pour the balls into the opening at the top. Try to guess how they will be distributed and why. Once all the balls have fallen and are in place, open the base and have the balls collected in the bucket. Repeat the operation. In the version made for DIN and offered here, there is a lever that, when operated in a vertical motion, allows the balls not to block the funnel opening.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-73266de elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"73266de\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-ee84257\" data-id=\"ee84257\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-594c62a elementor-tabs-view-horizontal elementor-widget elementor-widget-tabs\" data-id=\"594c62a\" data-element_type=\"widget\" data-widget_type=\"tabs.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.16.0 - 20-09-2023 *\/\n.elementor-widget-tabs.elementor-tabs-view-vertical .elementor-tabs-wrapper{width:25%;flex-shrink:0}.elementor-widget-tabs.elementor-tabs-view-vertical .elementor-tab-desktop-title.elementor-active{border-right-style:none}.elementor-widget-tabs.elementor-tabs-view-vertical .elementor-tab-desktop-title.elementor-active:after,.elementor-widget-tabs.elementor-tabs-view-vertical .elementor-tab-desktop-title.elementor-active:before{height:999em;width:0;right:0;border-right-style:solid}.elementor-widget-tabs.elementor-tabs-view-vertical .elementor-tab-desktop-title.elementor-active:before{top:0;transform:translateY(-100%)}.elementor-widget-tabs.elementor-tabs-view-vertical .elementor-tab-desktop-title.elementor-active:after{top:100%}.elementor-widget-tabs.elementor-tabs-view-horizontal .elementor-tab-desktop-title{display:table-cell}.elementor-widget-tabs.elementor-tabs-view-horizontal .elementor-tab-desktop-title.elementor-active{border-bottom-style:none}.elementor-widget-tabs.elementor-tabs-view-horizontal .elementor-tab-desktop-title.elementor-active:after,.elementor-widget-tabs.elementor-tabs-view-horizontal .elementor-tab-desktop-title.elementor-active:before{bottom:0;height:0;width:999em;border-bottom-style:solid}.elementor-widget-tabs.elementor-tabs-view-horizontal .elementor-tab-desktop-title.elementor-active:before{right:100%}.elementor-widget-tabs.elementor-tabs-view-horizontal .elementor-tab-desktop-title.elementor-active:after{left:100%}.elementor-widget-tabs .elementor-tab-content,.elementor-widget-tabs .elementor-tab-title,.elementor-widget-tabs .elementor-tab-title:after,.elementor-widget-tabs .elementor-tab-title:before,.elementor-widget-tabs .elementor-tabs-content-wrapper{border:1px #d5d8dc}.elementor-widget-tabs .elementor-tabs{text-align:left}.elementor-widget-tabs .elementor-tabs-wrapper{overflow:hidden}.elementor-widget-tabs .elementor-tab-title{cursor:pointer;outline:var(--focus-outline,none)}.elementor-widget-tabs .elementor-tab-desktop-title{position:relative;padding:20px 25px;font-weight:700;line-height:1;border:solid transparent}.elementor-widget-tabs .elementor-tab-desktop-title.elementor-active{border-color:#d5d8dc}.elementor-widget-tabs .elementor-tab-desktop-title.elementor-active:after,.elementor-widget-tabs .elementor-tab-desktop-title.elementor-active:before{display:block;content:\"\";position:absolute}.elementor-widget-tabs .elementor-tab-desktop-title:focus-visible{border:1px solid #000}.elementor-widget-tabs .elementor-tab-mobile-title{padding:10px;cursor:pointer}.elementor-widget-tabs .elementor-tab-content{padding:20px;display:none}@media (max-width:767px){.elementor-tabs .elementor-tab-content,.elementor-tabs .elementor-tab-title{border-style:solid solid none}.elementor-tabs .elementor-tabs-wrapper{display:none}.elementor-tabs .elementor-tabs-content-wrapper{border-bottom-style:solid}.elementor-tabs .elementor-tab-content{padding:10px}}@media (min-width:768px){.elementor-widget-tabs.elementor-tabs-view-vertical .elementor-tabs{display:flex}.elementor-widget-tabs.elementor-tabs-view-vertical .elementor-tabs-wrapper{flex-direction:column}.elementor-widget-tabs.elementor-tabs-view-vertical .elementor-tabs-content-wrapper{flex-grow:1;border-style:solid solid solid none}.elementor-widget-tabs.elementor-tabs-view-horizontal .elementor-tab-content{border-style:none solid solid}.elementor-widget-tabs.elementor-tabs-alignment-center .elementor-tabs-wrapper,.elementor-widget-tabs.elementor-tabs-alignment-end .elementor-tabs-wrapper,.elementor-widget-tabs.elementor-tabs-alignment-stretch .elementor-tabs-wrapper{display:flex}.elementor-widget-tabs.elementor-tabs-alignment-center .elementor-tabs-wrapper{justify-content:center}.elementor-widget-tabs.elementor-tabs-alignment-end .elementor-tabs-wrapper{justify-content:flex-end}.elementor-widget-tabs.elementor-tabs-alignment-stretch.elementor-tabs-view-horizontal .elementor-tab-title{width:100%}.elementor-widget-tabs.elementor-tabs-alignment-stretch.elementor-tabs-view-vertical .elementor-tab-title{height:100%}.elementor-tabs .elementor-tab-mobile-title{display:none}}<\/style>\t\t<div class=\"elementor-tabs\">\n\t\t\t<div class=\"elementor-tabs-wrapper\" role=\"tablist\" >\n\t\t\t\t\t\t\t\t\t<div id=\"elementor-tab-title-9361\" class=\"elementor-tab-title elementor-tab-desktop-title\" aria-selected=\"true\" data-tab=\"1\" role=\"tab\" tabindex=\"0\" aria-controls=\"elementor-tab-content-9361\" aria-expanded=\"false\">FOR TEACHER<\/div>\n\t\t\t\t\t\t\t\t\t<div id=\"elementor-tab-title-9362\" class=\"elementor-tab-title elementor-tab-desktop-title\" aria-selected=\"false\" data-tab=\"2\" role=\"tab\" tabindex=\"-1\" aria-controls=\"elementor-tab-content-9362\" aria-expanded=\"false\">FOR SCIENTIFIC EXPLAINER<\/div>\n\t\t\t\t\t\t\t\t\t<div id=\"elementor-tab-title-9363\" class=\"elementor-tab-title elementor-tab-desktop-title\" aria-selected=\"false\" data-tab=\"3\" role=\"tab\" tabindex=\"-1\" aria-controls=\"elementor-tab-content-9363\" aria-expanded=\"false\">ASSEMBLY SHEET GALTON BOARD<\/div>\n\t\t\t\t\t\t\t\t\t<div id=\"elementor-tab-title-9364\" class=\"elementor-tab-title elementor-tab-desktop-title\" aria-selected=\"false\" data-tab=\"4\" role=\"tab\" tabindex=\"-1\" aria-controls=\"elementor-tab-content-9364\" aria-expanded=\"false\">ASSEMBLY SHEET N. 3 EXHIBIT<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t<div class=\"elementor-tabs-content-wrapper\" role=\"tablist\" aria-orientation=\"vertical\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-tab-title elementor-tab-mobile-title\" aria-selected=\"true\" data-tab=\"1\" role=\"tab\" tabindex=\"0\" aria-controls=\"elementor-tab-content-9361\" aria-expanded=\"false\">FOR TEACHER<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-9361\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"1\" role=\"tabpanel\" aria-labelledby=\"elementor-tab-title-9361\" tabindex=\"0\" hidden=\"false\"><p>Most of the balls accumulate in the middle part. Why? Each ball that encounters a peg has two equiprobable alternatives: going left or right. The number of paths leading left or right is fewer than those leading to the center, as indicated by the table below (Tartaglia&#8217;s triangle), which shows the number of possible paths for each rung:<\/p><p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter\" src=\"https:\/\/fabiomelicianiscience.com\/wp-content\/uploads\/2023\/09\/tartaglia_2.png\" alt=\"\" width=\"189\" height=\"213\" \/><\/p><p>The top of Galton&#8217;s machine, the balls fall haphazardly and chaotically but, &#8220;as if by magic,&#8221; at the base they are funneled into different boxes, ALWAYS forming the outline of a &#8220;bell&#8221; known as a Gaussian or normal distribution. How is this regularity justified? On each rung the individual ball can &#8220;decide&#8221; to bounce left or right. If the ball &#8220;wanted&#8221; to go to the last square on the right, it would have to &#8220;decide&#8221; to always bounce to the right. In other words, there is only one path that takes the ball to the last square on the right. The same is true for the last square on the left. Instead, there are many more paths that take the ball to the middle squares.<\/p><p>For example, one bounce to the right followed by one to the left and so on, bring the ball to the center square. But also: two bounces to the right and two to the left and so on bring the ball to the center square. In general, it is enough that the number of steps\/rebounds made to the right is equal to the number of steps\/rebounds made to the left for the ball to end up exactly in the center square.<\/p><p>If there were only 4 layers of pegs, the number of paths leading to exactly the center square would be 6, as shown in the last row of the Tartaglia triangle below. Can you find all the possible paths leading to the center square?<\/p><p><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/fabiomelicianiscience.com\/wp-content\/uploads\/2023\/09\/tartaglia_3.jpg\" alt=\"\" width=\"964\" height=\"314\" \/><\/p><p>In Tartaglia&#8217;s triangle, each number is the sum of the numbers preceding it, as in the image.<\/p><p>How do you complete the triangle if you add more layers?<br \/>Still with 4 layers, the number of paths leading to exactly the second-to-last box on the left would be 4, as shown in the last line of Tartaglia&#8217;s triangle below:<\/p><p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone wp-image-1235 size-full\" src=\"https:\/\/fabiomelicianiscience.com\/wp-content\/uploads\/2023\/09\/tartaglia_4.jpg\" alt=\"\" width=\"964\" height=\"342\" srcset=\"https:\/\/www.din.usi.ch\/blog\/wp-content\/uploads\/2023\/09\/tartaglia_4.jpg 964w, https:\/\/www.din.usi.ch\/blog\/wp-content\/uploads\/2023\/09\/tartaglia_4-300x106.jpg 300w, https:\/\/www.din.usi.ch\/blog\/wp-content\/uploads\/2023\/09\/tartaglia_4-768x272.jpg 768w\" sizes=\"(max-width: 964px) 100vw, 964px\" \/><\/p><p>Can you find all these paths? And what is the number of paths leading to the second-to-last box on the right? There are interesting symmetries! <br \/><br \/>If instead of 4 there were 6 layers of pegs at the top of this post, the number of paths leading exactly to the center would be 20 as shown in the last line of Tartaglia&#8217;s triangle (try completing it with the sixth line). <\/p><p>Tartaglia&#8217;s triangle is also important in calculating the coefficients in the development of the n-th power of the binomial (a+b)^n.<br \/><br \/>The Gaussian distribution is symmetric with respect to the mean, which is also the fashion and median, and this symmetry is &#8220;similar&#8221; to what we observe in Tartaglia&#8217;s triangle.<br \/>It is the Central Limit Theorem that underlies the regularity we observe in the squares of this station in which the balls are channeled in an orderly fashion, an order that contrasts with the randomness observed at the top of the station. It is also because of this regularity, dictated by the Central Limit Theorem, that statisticians are able to make predictions based on large samples.<\/p><p>\u00a0<\/p><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-tab-title elementor-tab-mobile-title\" aria-selected=\"false\" data-tab=\"2\" role=\"tab\" tabindex=\"-1\" aria-controls=\"elementor-tab-content-9362\" aria-expanded=\"false\">FOR SCIENTIFIC EXPLAINER<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-9362\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"2\" role=\"tabpanel\" aria-labelledby=\"elementor-tab-title-9362\" tabindex=\"0\" hidden=\"hidden\"><p><b>STEP 1<\/b>: Drop a ball first and try to guess which bottom box it will end up in. This is quite difficult to predict! If a child guesses exactly the square, he gets 3 points. If he misses by one box (left or right), the child gets 2 points. If he misses by 2 squares he gets only 1 point. Otherwise zero points. The one who scores the most points wins.<\/p><p><b>STEP 2<\/b>: Now drop a handful of balls and try to guess how many will end up in the most lateral boxes (far right or far left). If the child says 10 balls will fall in the far right box and no balls end up in that box, he loses 10 points. If the child says &#8220;10&#8221; and one ball ends up in the far right, he loses 9 points (10-1). And so on.<\/p><p><b>STEP 3<\/b>: Now drop all the balls. What do you think will happen? Can we predict where they will end up?<\/p><p><b>What do we learn from this game with reference to everyday life?<\/b><br \/>&#8211; Each ball can be thought of as a person<br \/>&#8211; When people make binary decisions (with only 2 possible options, such as to vote or not to vote, to go to school or not to go to school, to travel or not to travel) they behave like a ball that &#8220;decides&#8221; to go left or right.<br \/>&#8211; If people&#8217;s decisions are independent of each other, we can study the result of many decisions made by many people using the Gaussian curve.<br \/>&#8211; Carl Friedrich Gauss was a German mathematician, physicist and astronomer who lived from 1777 to 1855. He is considered one of the greatest mathematicians of all time.<\/p><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-tab-title elementor-tab-mobile-title\" aria-selected=\"false\" data-tab=\"3\" role=\"tab\" tabindex=\"-1\" aria-controls=\"elementor-tab-content-9363\" aria-expanded=\"false\">ASSEMBLY SHEET GALTON BOARD<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-9363\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"3\" role=\"tabpanel\" aria-labelledby=\"elementor-tab-title-9363\" tabindex=\"0\" hidden=\"hidden\"><div><a href=\"https:\/\/fabiomelicianiscience.com\/wp-content\/uploads\/2023\/09\/DIN_GALTON_BOARD_version_1_assembly_sheet_1.pdf\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/fabiomelicianiscience.com\/wp-content\/uploads\/2023\/09\/DIN_GALTON_BOARD_version_1_assembly_sheet_1.png\" alt=\"\" width=\"2800\" height=\"1416\" \/><\/a> Galton board (Quincunx) VERSION DIN<\/div><p><a href=\"https:\/\/fabiomelicianiscience.com\/wp-content\/uploads\/2023\/09\/DIN_GALTON_BOARD_version_1_assembly_sheet_2.pdf\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/fabiomelicianiscience.com\/wp-content\/uploads\/2023\/09\/DIN_GALTON_BOARD_version_1_assembly_sheet_2.png\" alt=\"\" width=\"2788\" height=\"1406\" \/><\/a>Galton board (Quincunx) VERSION DIN<img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/fabiomelicianiscience.com\/wp-content\/uploads\/2023\/09\/DIN_GALTON_BOARD_version_1-scaled.jpg\" alt=\"\" width=\"1707\" height=\"2560\" \/>Galton board (Quincunx) VERSION DIN<\/p><p><b>ATTENTION<\/b>! The project below is not the Galton board in the version of Let&#8217;s Dial (DIN), but another version of the Galton board, made for a project in India, and in a slanted version:<\/p><p><a href=\"https:\/\/fabiomelicianiscience.com\/wp-content\/uploads\/2023\/09\/DIN_GALTON_BOARD_version_2_assembly_sheet_inclined.pdf\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/fabiomelicianiscience.com\/wp-content\/uploads\/2023\/09\/DIN_GALTON_BOARD_version_2_assembly_sheet_inclined.png\" alt=\"\" width=\"2354\" height=\"1654\" \/><\/a>Galton board VERSION B (inclined)<\/p><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-tab-title elementor-tab-mobile-title\" aria-selected=\"false\" data-tab=\"4\" role=\"tab\" tabindex=\"-1\" aria-controls=\"elementor-tab-content-9364\" aria-expanded=\"false\">ASSEMBLY SHEET N. 3 EXHIBIT<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-9364\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"4\" role=\"tabpanel\" aria-labelledby=\"elementor-tab-title-9364\" tabindex=\"0\" hidden=\"hidden\"><p><a href=\"https:\/\/fabiomelicianiscience.com\/wp-content\/uploads\/2023\/09\/DIN_QUINCUNX_COLORSUDOKU_SPIDER_WEB_assembly_sheet.pdf\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone wp-image-1348 size-full\" src=\"https:\/\/fabiomelicianiscience.com\/wp-content\/uploads\/2023\/09\/DIN_QUINCUNX_COLORSUDOKU_SPIDER_WEB_assembly_sheet-scaled.jpg\" alt=\"\" width=\"2560\" height=\"1810\" srcset=\"https:\/\/www.din.usi.ch\/blog\/wp-content\/uploads\/2023\/09\/DIN_QUINCUNX_COLORSUDOKU_SPIDER_WEB_assembly_sheet-scaled.jpg 2560w, https:\/\/www.din.usi.ch\/blog\/wp-content\/uploads\/2023\/09\/DIN_QUINCUNX_COLORSUDOKU_SPIDER_WEB_assembly_sheet-300x212.jpg 300w, https:\/\/www.din.usi.ch\/blog\/wp-content\/uploads\/2023\/09\/DIN_QUINCUNX_COLORSUDOKU_SPIDER_WEB_assembly_sheet-1024x724.jpg 1024w, https:\/\/www.din.usi.ch\/blog\/wp-content\/uploads\/2023\/09\/DIN_QUINCUNX_COLORSUDOKU_SPIDER_WEB_assembly_sheet-768x543.jpg 768w, https:\/\/www.din.usi.ch\/blog\/wp-content\/uploads\/2023\/09\/DIN_QUINCUNX_COLORSUDOKU_SPIDER_WEB_assembly_sheet-1536x1086.jpg 1536w, https:\/\/www.din.usi.ch\/blog\/wp-content\/uploads\/2023\/09\/DIN_QUINCUNX_COLORSUDOKU_SPIDER_WEB_assembly_sheet-2048x1448.jpg 2048w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/a><\/p><\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b34c165 elementor-widget elementor-widget-spacer\" data-id=\"b34c165\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.16.0 - 20-09-2023 *\/\n.elementor-column .elementor-spacer-inner{height:var(--spacer-size)}.e-con{--container-widget-width:100%}.e-con-inner>.elementor-widget-spacer,.e-con>.elementor-widget-spacer{width:var(--container-widget-width,var(--spacer-size));--align-self:var(--container-widget-align-self,initial);--flex-shrink:0}.e-con-inner>.elementor-widget-spacer>.elementor-widget-container,.e-con>.elementor-widget-spacer>.elementor-widget-container{height:100%;width:100%}.e-con-inner>.elementor-widget-spacer>.elementor-widget-container>.elementor-spacer,.e-con>.elementor-widget-spacer>.elementor-widget-container>.elementor-spacer{height:100%}.e-con-inner>.elementor-widget-spacer>.elementor-widget-container>.elementor-spacer>.elementor-spacer-inner,.e-con>.elementor-widget-spacer>.elementor-widget-container>.elementor-spacer>.elementor-spacer-inner{height:var(--container-widget-height,var(--spacer-size))}.e-con-inner>.elementor-widget-spacer.elementor-widget-empty,.e-con>.elementor-widget-spacer.elementor-widget-empty{position:relative;min-height:22px;min-width:22px}.e-con-inner>.elementor-widget-spacer.elementor-widget-empty .elementor-widget-empty-icon,.e-con>.elementor-widget-spacer.elementor-widget-empty .elementor-widget-empty-icon{position:absolute;top:0;bottom:0;left:0;right:0;margin:auto;padding:0;width:22px;height:22px}<\/style>\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-f3ee3f0 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"f3ee3f0\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5e6e787\" data-id=\"5e6e787\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-421e164 elementor-widget__width-inherit elementor-widget elementor-widget-html\" data-id=\"421e164\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<iframe loading=\"lazy\" scrolling=\"no\" title=\"Customizable Galton board\" src=\"https:\/\/www.geogebra.org\/material\/iframe\/id\/dty99uef\/width\/1300\/height\/587\/border\/888888\/sfsb\/true\/smb\/false\/stb\/false\/stbh\/false\/ai\/false\/asb\/false\/sri\/false\/rc\/false\/ld\/false\/sdz\/true\/ctl\/false\" width=\"1300px\" height=\"287px\" style=\"border:0px;\"> <\/iframe>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-041d6ad elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"041d6ad\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-8182de3\" data-id=\"8182de3\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6e95c27 elementor-widget elementor-widget-html\" data-id=\"6e95c27\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<p class=\"codepen\" data-height=\"900\" data-theme-id=\"dark\" data-default-tab=\"css\" data-slug-hash=\"NWPxomj\" data-editable=\"true\" data-user=\"lmeetr\" style=\"height: 600px; box-sizing: border-box; display: flex; align-items: center; justify-content: center; border: 2px solid; margin: 1em 0; padding: 1em;\">\n  <span>See the Pen <a href=\"https:\/\/codepen.io\/lmeetr\/pen\/NWPxomj\">\n  Quincunx (Galton Board) in Matter.js<\/a> by Richard Lau (<a href=\"https:\/\/codepen.io\/lmeetr\">@lmeetr<\/a>)\n  on <a href=\"https:\/\/codepen.io\">CodePen<\/a>.<\/span>\n<\/p>\n<script async src=\"https:\/\/cpwebassets.codepen.io\/assets\/embed\/ei.js\"><\/script>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c2a37e8 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c2a37e8\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d0b5d0b\" data-id=\"d0b5d0b\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2b20529 elementor-widget elementor-widget-heading\" data-id=\"2b20529\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">How to build<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-25047f7 elementor-section-full_width elementor-section-content-space-between elementor-section-height-default elementor-section-height-default\" data-id=\"25047f7\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-22cb463\" data-id=\"22cb463\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1f14f81 elementor-widget elementor-widget-text-editor\" data-id=\"1f14f81\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<h6><strong>EXHIBIT MATERIAL DIN \/\/ <\/strong>VERSION<strong> A<br \/><\/strong><\/h6><ul><li>Galton machine<\/li><li>Cardboard panel 54&#215;29 cm<\/li><li>Cardboard title 100&#215;20 cm<\/li><li>Bucket for ball<\/li><li><a href=\"https:\/\/www.amazon.it\/PALLINI-SOFTAIR-GRAMMI-JS-TACTICAL-BIANCHI\/dp\/B00NR1W2GO\/ref=sr_1_1?__mk_it_IT=%C3%85M%C3%85%C5%BD%C3%95%C3%91&amp;crid=103JIF7T8TP75&amp;keywords=BUSTA+5000+PALLINI+SOFTAIR+SOFT+AIR+0.20+GR+GRAMMI+JS-TACTICAL&amp;qid=1700039735&amp;sprefix=busta+5000+pallini+softair+soft+air+0.20+gr+grammi+js-tactical+%2Caps%2C98&amp;sr=8-1\">6 mm softair balls \/\/ If the measurements of the galton machine are the same as those given in the DIN version (click here)<\/a><\/li><li>Base pallet 100&#215;60 cm<\/li><li>Vertical paller 100&#215;215 cm \/\/ With fixing system for the Galton machine<\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-65bce36\" data-id=\"65bce36\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f9896a3 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"f9896a3\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><strong><span style=\"color: #333333; font-size: 17px; text-transform: uppercase;\">CLICK AND DOWNLOAD PRINT-READY .PDF FILES:<\/span><\/strong><\/p><ul><li style=\"font-size: 14px;\"><a href=\"https:\/\/fabiomelicianiscience.com\/wp-content\/uploads\/2023\/09\/ITA_Quinconce_panel_54x29cm.pdf\">CARDBOARD PANEL 54X29 cm (ITA)<\/a><\/li><li style=\"font-size: 14px;\"><a href=\"https:\/\/fabiomelicianiscience.com\/wp-content\/uploads\/2023\/09\/FRA_Quinconce_panel_54x29cm.pdf\">CARDBOARD PANEL 54&#215;29 cm (FRA)<\/a><\/li><li style=\"font-size: 14px;\"><a href=\"https:\/\/fabiomelicianiscience.com\/wp-content\/uploads\/2023\/09\/DIN_QUINCUNX_COLORSUDOKU_SPIDER_WEB_assembly_sheet.pdf\">DIN TOTAL ASSEMBLY SHEET<\/a> \/\/ The three exhibits (Quincunx, Spider web and Coloursudoku) are designed to be set up on three vertical pallets side by side and connected by hinges, as in the assembly sheet, which can be downloaded here.<\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4945b76 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4945b76\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-e89cedf\" data-id=\"e89cedf\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ee8b3e4 elementor-widget elementor-widget-gallery\" data-id=\"ee8b3e4\" data-element_type=\"widget\" data-settings=\"{&quot;gallery_layout&quot;:&quot;masonry&quot;,&quot;columns&quot;:2,&quot;gap&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:100,&quot;sizes&quot;:[]},&quot;overlay_description&quot;:&quot;caption&quot;,&quot;lazyload&quot;:&quot;yes&quot;,&quot;columns_tablet&quot;:2,&quot;columns_mobile&quot;:1,&quot;gap_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:10,&quot;sizes&quot;:[]},&quot;gap_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:10,&quot;sizes&quot;:[]},&quot;overlay_background&quot;:&quot;yes&quot;,&quot;content_hover_animation&quot;:&quot;fade-in&quot;}\" data-widget_type=\"gallery.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor-pro - v3.16.0 - 20-09-2023 *\/\n.elementor-gallery__container{min-height:1px}.elementor-gallery-item{position:relative;overflow:hidden;display:block;text-decoration:none;border:solid var(--image-border-width) var(--image-border-color);border-radius:var(--image-border-radius)}.elementor-gallery-item__content,.elementor-gallery-item__overlay{height:100%;width:100%;position:absolute;top:0;left:0}.elementor-gallery-item__overlay{mix-blend-mode:var(--overlay-mix-blend-mode);transition-duration:var(--overlay-transition-duration);transition-property:mix-blend-mode,transform,opacity,background-color}.elementor-gallery-item__image.e-gallery-image{transition-duration:var(--image-transition-duration);transition-property:filter,transform}.elementor-gallery-item__content{display:flex;flex-direction:column;justify-content:var(--content-justify-content,center);align-items:center;text-align:var(--content-text-align);padding:var(--content-padding)}.elementor-gallery-item__content>div{transition-duration:var(--content-transition-duration)}.elementor-gallery-item__content.elementor-gallery--sequenced-animation>div:nth-child(2){transition-delay:calc(var(--content-transition-delay) \/ 3)}.elementor-gallery-item__content.elementor-gallery--sequenced-animation>div:nth-child(3){transition-delay:calc(var(--content-transition-delay) \/ 3 * 2)}.elementor-gallery-item__content.elementor-gallery--sequenced-animation>div:nth-child(4){transition-delay:calc(var(--content-transition-delay) \/ 3 * 3)}.elementor-gallery-item__description{color:var(--description-text-color,#fff);width:100%}.elementor-gallery-item__title{color:var(--title-text-color,#fff);font-weight:700;width:100%}.elementor-gallery__titles-container{display:flex;flex-wrap:wrap;justify-content:var(--titles-container-justify-content,center);margin-bottom:20px}.elementor-gallery__titles-container:not(.e--pointer-framed) .elementor-item:after,.elementor-gallery__titles-container:not(.e--pointer-framed) .elementor-item:before{background-color:var(--galleries-pointer-bg-color-hover)}.elementor-gallery__titles-container:not(.e--pointer-framed) .elementor-item.elementor-item-active:after,.elementor-gallery__titles-container:not(.e--pointer-framed) .elementor-item.elementor-item-active:before{background-color:var(--galleries-pointer-bg-color-active)}.elementor-gallery__titles-container.e--pointer-framed .elementor-item:before{border-color:var(--galleries-pointer-bg-color-hover);border-width:var(--galleries-pointer-border-width)}.elementor-gallery__titles-container.e--pointer-framed .elementor-item:after{border-color:var(--galleries-pointer-bg-color-hover)}.elementor-gallery__titles-container.e--pointer-framed .elementor-item.elementor-item-active:after,.elementor-gallery__titles-container.e--pointer-framed .elementor-item.elementor-item-active:before{border-color:var(--galleries-pointer-bg-color-active)}.elementor-gallery__titles-container.e--pointer-framed.e--animation-draw .elementor-item:before{border-left-width:var(--galleries-pointer-border-width);border-bottom-width:var(--galleries-pointer-border-width);border-right-width:0;border-top-width:0}.elementor-gallery__titles-container.e--pointer-framed.e--animation-draw .elementor-item:after{border-left-width:0;border-bottom-width:0;border-right-width:var(--galleries-pointer-border-width);border-top-width:var(--galleries-pointer-border-width)}.elementor-gallery__titles-container.e--pointer-framed.e--animation-corners .elementor-item:before{border-left-width:var(--galleries-pointer-border-width);border-bottom-width:0;border-right-width:0;border-top-width:var(--galleries-pointer-border-width)}.elementor-gallery__titles-container.e--pointer-framed.e--animation-corners .elementor-item:after{border-left-width:0;border-bottom-width:var(--galleries-pointer-border-width);border-right-width:var(--galleries-pointer-border-width);border-top-width:0}.elementor-gallery__titles-container .e--pointer-double-line .elementor-item:after,.elementor-gallery__titles-container .e--pointer-double-line .elementor-item:before,.elementor-gallery__titles-container .e--pointer-overline .elementor-item:before,.elementor-gallery__titles-container .e--pointer-underline .elementor-item:after{height:var(--galleries-pointer-border-width)}.elementor-gallery-title{--space-between:10px;cursor:pointer;color:#6d7882;font-weight:500;position:relative;padding:7px 14px;transition:all .3s}.elementor-gallery-title--active{color:#495157}.elementor-gallery-title:not(:last-child){margin-right:var(--space-between)}.elementor-gallery-item__title+.elementor-gallery-item__description{margin-top:var(--description-margin-top)}.e-gallery-item.elementor-gallery-item{transition-property:all}.e-gallery-item.elementor-animated-content .elementor-animated-item--enter-from-bottom,.e-gallery-item.elementor-animated-content .elementor-animated-item--enter-from-left,.e-gallery-item.elementor-animated-content .elementor-animated-item--enter-from-right,.e-gallery-item.elementor-animated-content .elementor-animated-item--enter-from-top,.e-gallery-item:focus .elementor-gallery__item-overlay-bg,.e-gallery-item:focus .elementor-gallery__item-overlay-content,.e-gallery-item:focus .elementor-gallery__item-overlay-content__description,.e-gallery-item:focus .elementor-gallery__item-overlay-content__title,.e-gallery-item:hover .elementor-gallery__item-overlay-bg,.e-gallery-item:hover .elementor-gallery__item-overlay-content,.e-gallery-item:hover .elementor-gallery__item-overlay-content__description,.e-gallery-item:hover .elementor-gallery__item-overlay-content__title{opacity:1}a.elementor-item.elementor-gallery-title{color:var(--galleries-title-color-normal)}a.elementor-item.elementor-gallery-title.elementor-item-active,a.elementor-item.elementor-gallery-title.highlighted,a.elementor-item.elementor-gallery-title:focus,a.elementor-item.elementor-gallery-title:hover{color:var(--galleries-title-color-hover)}a.elementor-item.elementor-gallery-title.elementor-item-active{color:var(--gallery-title-color-active)}.e-con-inner>.elementor-widget-gallery,.e-con>.elementor-widget-gallery{width:var(--container-widget-width);--flex-grow:var(--container-widget-flex-grow)}<\/style>\t\t<div class=\"elementor-gallery__container\">\n\t\t\t\t\t\t\t<div class=\"e-gallery-item elementor-gallery-item elementor-animated-content\">\n\t\t\t\t\t<div class=\"e-gallery-image elementor-gallery-item__image\" data-thumbnail=\"https:\/\/www.din.usi.ch\/blog\/wp-content\/uploads\/2023\/04\/moebelpalette-120-x-80-cm-moebelpalette-1-300x150.jpg\" data-width=\"300\" data-height=\"150\" aria-label=\"\" role=\"img\" ><\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-gallery-item__overlay\"><\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-gallery-item__content\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-gallery-item__description\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tpallet\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"e-gallery-item elementor-gallery-item elementor-animated-content\">\n\t\t\t\t\t<div class=\"e-gallery-image elementor-gallery-item__image\" data-thumbnail=\"https:\/\/www.din.usi.ch\/blog\/wp-content\/uploads\/2023\/04\/WabenplattenGraphilite-1-300x150.jpg\" data-width=\"300\" data-height=\"150\" aria-label=\"\" role=\"img\" ><\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-gallery-item__overlay\"><\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-gallery-item__content\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-gallery-item__description\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\thoneycomb cardboard \/ laminated honeycomb cardboard\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>The Galton board or Galton machine (QUINCUNX) is named after Sir Francis Galton, an English mathematician and statistician who developed it in the late 19th century to explain some statistical&hellip; <\/p>\n","protected":false},"author":1,"featured_media":1195,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[37],"tags":[38,28],"_links":{"self":[{"href":"https:\/\/www.din.usi.ch\/blog\/wp-json\/wp\/v2\/posts\/1146"}],"collection":[{"href":"https:\/\/www.din.usi.ch\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.din.usi.ch\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.din.usi.ch\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.din.usi.ch\/blog\/wp-json\/wp\/v2\/comments?post=1146"}],"version-history":[{"count":155,"href":"https:\/\/www.din.usi.ch\/blog\/wp-json\/wp\/v2\/posts\/1146\/revisions"}],"predecessor-version":[{"id":3719,"href":"https:\/\/www.din.usi.ch\/blog\/wp-json\/wp\/v2\/posts\/1146\/revisions\/3719"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.din.usi.ch\/blog\/wp-json\/wp\/v2\/media\/1195"}],"wp:attachment":[{"href":"https:\/\/www.din.usi.ch\/blog\/wp-json\/wp\/v2\/media?parent=1146"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.din.usi.ch\/blog\/wp-json\/wp\/v2\/categories?post=1146"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.din.usi.ch\/blog\/wp-json\/wp\/v2\/tags?post=1146"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}