{"id":13580,"date":"2025-02-16T10:00:00","date_gmt":"2025-02-16T10:00:00","guid":{"rendered":"https:\/\/modernsciences.org\/staging\/4414\/?p=13580"},"modified":"2025-02-04T05:37:19","modified_gmt":"2025-02-04T05:37:19","slug":"metal-expands-when-heated-railroads-february-2025","status":"publish","type":"post","link":"https:\/\/modernsciences.org\/staging\/4414\/metal-expands-when-heated-railroads-february-2025\/","title":{"rendered":"Metal expands when heated. What does that mean for railroads?"},"content":{"rendered":"\n<figure class=\"wp-embed-aspect-16-9 wp-has-aspect-ratio wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Why Don\u2019t Railroads Need Expansion Joints?\" width=\"1200\" height=\"675\" src=\"https:\/\/www.youtube.com\/embed\/Rdj5-6t6QI8?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p class=\"\">Hans Goldschmidt discovered that metal oxides, such as rust, react with aluminum powder to produce pure liquid metal, a process now widely used in thermite welding.<\/p>\n","protected":false},"excerpt":{"rendered":"Hans Goldschmidt discovered that metal oxides, such as rust, react with aluminum powder to produce pure liquid metal,&hellip;\n","protected":false},"author":4,"featured_media":13582,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"video","meta":{"nf_dc_page":"","fifu_image_url":"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/2\/23\/Thermite_welding_08.jpg","fifu_image_alt":"","footnotes":""},"categories":[15,17],"tags":[4639,4638,4628,4634,4642,4631,4633,4644,4643,4632,4636,4641,4630,4637,4645,4646,4640,4627,216,4635,4629,4647,189],"class_list":{"0":"post-13580","1":"post","2":"type-post","3":"status-publish","4":"format-video","5":"has-post-thumbnail","7":"category-engineering","8":"category-math-and-the-sciences","9":"tag-aluminum-powder-reaction","10":"tag-controlled-cooling-in-welding","11":"tag-exothermic-welding","12":"tag-global-railway-infrastructure","13":"tag-hans-goldschmidt","14":"tag-high-temperature-welding","15":"tag-metal-expansion","16":"tag-molten-metal-welding","17":"tag-preheating-process","18":"tag-rail-expansion","19":"tag-rail-safety-improvements","20":"tag-railroad-construction","21":"tag-railway-maintenance","22":"tag-seamless-rail-connections","23":"tag-steel-rail-welding","24":"tag-thermal-expansion-effects","25":"tag-thermite-welding","26":"tag-track-stability","27":"tag-veritasium-2","28":"tag-vibration-control","29":"tag-wear-reduction","30":"tag-welding-engineering","31":"tag-youtube","32":"post_format-post-format-video","33":"cs-entry","34":"cs-video-wrap"},"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/modernsciences.org\/staging\/4414\/wp-json\/wp\/v2\/posts\/13580","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/modernsciences.org\/staging\/4414\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/modernsciences.org\/staging\/4414\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/modernsciences.org\/staging\/4414\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/modernsciences.org\/staging\/4414\/wp-json\/wp\/v2\/comments?post=13580"}],"version-history":[{"count":1,"href":"https:\/\/modernsciences.org\/staging\/4414\/wp-json\/wp\/v2\/posts\/13580\/revisions"}],"predecessor-version":[{"id":13581,"href":"https:\/\/modernsciences.org\/staging\/4414\/wp-json\/wp\/v2\/posts\/13580\/revisions\/13581"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/modernsciences.org\/staging\/4414\/wp-json\/wp\/v2\/media\/13582"}],"wp:attachment":[{"href":"https:\/\/modernsciences.org\/staging\/4414\/wp-json\/wp\/v2\/media?parent=13580"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/modernsciences.org\/staging\/4414\/wp-json\/wp\/v2\/categories?post=13580"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/modernsciences.org\/staging\/4414\/wp-json\/wp\/v2\/tags?post=13580"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}