{"id":27,"date":"2011-06-01T13:56:25","date_gmt":"2011-06-01T17:56:25","guid":{"rendered":"http:\/\/blog.beliefnet.com\/dadequate\/?p=27"},"modified":"2011-05-31T18:02:11","modified_gmt":"2011-05-31T22:02:11","slug":"the-lego-difference-engine","status":"publish","type":"post","link":"https:\/\/www.beliefnet.com\/columnists\/dadequate\/2011\/06\/the-lego-difference-engine.html","title":{"rendered":"The LEGO Difference Engine"},"content":{"rendered":"<p><strong>This is what I make with LEGOs.<\/strong> Spaceships are my specialty.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" src=\"https:\/\/boyett.smugmug.com\/Publicity\/Jason-Boyett-Blog\/i-SSvxBT3\/0\/O\/lego.jpg\" alt=\"\" width=\"500\" height=\"375\" \/><\/p>\n<p><strong>This is what<\/strong> <a href=\"http:\/\/acarol.woz.org\" target=\"_blank\">Apple software engineer Andrew Carol<\/a> makes with LEGOs:<\/p>\n<p><a href=\"http:\/\/acarol.woz.org\/difference_engine.html\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" src=\"https:\/\/boyett.smugmug.com\/Publicity\/Jason-Boyett-Blog\/i-vrsb42p\/0\/O\/FullEngineFrontLarge.jpg\" alt=\"\" width=\"500\" height=\"373\" \/><\/a><\/p>\n<p>It&#8217;s a <a href=\"http:\/\/acarol.woz.org\/difference_engine.html\" target=\"_blank\">Babbage Difference Engine<\/a>, a working model of a mid-19th century machine designed to &#8220;evaluate polynomials of the form Ax^2 + Bx + C for x=0, 1, 2, \u2026n with 3 digit results.&#8221; I wish I understood what that meant, because whatever it is, this LEGO model actually does it. It&#8217;s a mechanical calculator. You crank it and make actual mathematical calculations.<\/p>\n<p>Here&#8217;s a <a href=\"http:\/\/www.youtube.com\/watch?v=i_u3hpYMySk\" target=\"_blank\">video of the engine in action<\/a>.<\/p>\n<p>You know what happens if you crank <em>my<\/em> LEGO spaceships? They fall apart. But you can make &#8220;pio! pio!&#8221; noises to simulate the sweet laser gun action.<\/p>\n<p>Sigh.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This is what I make with LEGOs. Spaceships are my specialty. This is what Apple software engineer Andrew Carol makes with LEGOs: It&#8217;s a Babbage Difference Engine, a working model of a mid-19th century machine designed to &#8220;evaluate polynomials of the form Ax^2 + Bx + C for x=0, 1, 2, \u2026n with 3 digit&hellip;<\/p>\n","protected":false},"author":84,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10,9],"tags":[13,12,11],"class_list":["post-27","post","type-post","status-publish","format-standard","hentry","category-awesome","category-insecurity","tag-andrew-carol","tag-babbage-difference-engine","tag-lego"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>The LEGO Difference Engine - Dadequate<\/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.beliefnet.com\/columnists\/dadequate\/2011\/06\/the-lego-difference-engine.html\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The LEGO Difference Engine - Dadequate\" \/>\n<meta property=\"og:description\" content=\"This is what I make with LEGOs. Spaceships are my specialty. This is what Apple software engineer Andrew Carol makes with LEGOs: It&#8217;s a Babbage Difference Engine, a working model of a mid-19th century machine designed to &#8220;evaluate polynomials of the form Ax^2 + Bx + C for x=0, 1, 2, \u2026n with 3 digit&hellip;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.beliefnet.com\/columnists\/dadequate\/2011\/06\/the-lego-difference-engine.html\" \/>\n<meta property=\"og:site_name\" content=\"Dadequate\" \/>\n<meta property=\"article:published_time\" content=\"2011-06-01T17:56:25+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2011-05-31T22:02:11+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/boyett.smugmug.com\/Publicity\/Jason-Boyett-Blog\/i-SSvxBT3\/0\/O\/lego.jpg\" \/>\n<meta name=\"author\" content=\"Jason Boyett\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"The LEGO Difference Engine - Dadequate","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.beliefnet.com\/columnists\/dadequate\/2011\/06\/the-lego-difference-engine.html","og_locale":"en_US","og_type":"article","og_title":"The LEGO Difference Engine - Dadequate","og_description":"This is what I make with LEGOs. Spaceships are my specialty. 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