{"id":133855,"date":"2025-08-01T14:00:10","date_gmt":"2025-08-01T14:00:10","guid":{"rendered":"http:\/\/cryptospotters.net\/?p=133855"},"modified":"2025-08-01T14:00:10","modified_gmt":"2025-08-01T14:00:10","slug":"chinese-scientists-double-artillery-gun-lifespan-with-ancient-chromium-tech","status":"publish","type":"post","link":"http:\/\/cryptospotters.net\/?p=133855","title":{"rendered":"Chinese scientists double artillery gun lifespan with ancient chromium tech"},"content":{"rendered":"<p>Source: China &#8211; South China Morning PostScientists in northwest China have doubled the service life of high-temperature, high-pressure artillery barrels by refining a chromium plating technique first used by the Chinese military before 200BC.<br \/>\nBronze swords buried with the Terracotta Army of China\u2019s first emperor, Qin Shi Huang, remained sharp and untarnished after more than 2,000 years underground.<br \/>\nMicroscopic analysis revealed a thin layer of chromium salts \u2013 just 10 to 15 micrometres thick \u2013 on their surfaces, protected by an&#8230;<a href=\"https:\/\/www.scmp.com\/news\/china\/science\/article\/3320219\/chinese-scientists-double-artillery-gun-lifespan-2000-year-old-chromium-tech-upgrade?utm_source=rss_feed\" target=\"_blank\" class=\"feedzy-rss-link-icon\" rel=\"noopener\">Read More<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Source: China &#8211; South China Morning PostScientists in northwest China have doubled the service life of high-temperature, high-pressure artillery barrels by refining a chromium plating technique first used by the&hellip; <\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[3],"tags":[],"_links":{"self":[{"href":"http:\/\/cryptospotters.net\/index.php?rest_route=\/wp\/v2\/posts\/133855"}],"collection":[{"href":"http:\/\/cryptospotters.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/cryptospotters.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"http:\/\/cryptospotters.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=133855"}],"version-history":[{"count":0,"href":"http:\/\/cryptospotters.net\/index.php?rest_route=\/wp\/v2\/posts\/133855\/revisions"}],"wp:attachment":[{"href":"http:\/\/cryptospotters.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=133855"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/cryptospotters.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=133855"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/cryptospotters.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=133855"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}