{"id":123773,"date":"2019-06-20T17:10:09","date_gmt":"2019-06-20T17:10:09","guid":{"rendered":"https:\/\/www.bnreport.com\/50-years-ago-bulletproof-armor-was-getting-light-enough-to-wear\/"},"modified":"2019-06-20T17:10:09","modified_gmt":"2019-06-20T17:10:09","slug":"50-years-ago-bulletproof-armor-was-getting-light-enough-to-wear","status":"publish","type":"post","link":"https:\/\/www.bnreport.com\/en\/50-years-ago-bulletproof-armor-was-getting-light-enough-to-wear\/","title":{"rendered":"50 years ago, bulletproof armor was getting light enough to wear"},"content":{"rendered":"<p><strong>Lighter bulletproof vest<\/strong> \u2014<\/p>\n<p>A new, lighter bulletproof armor \u2026 composed of boron carbide fibers \u2026 [is] capable of stopping a .30-caliber bullet\u2026. The armor weighs about six pounds per square foot, compared to previous boron carbide armor of seven pounds per square foot\u2026. Until now boron carbide armor has been used mainly to protect vital helicopter parts, but the lighter weight means it could be worn by ground troops. \u2014 <em><a href=\"http:\/\/www.sciencenews.org\/archive\/engineering-sciences-25\" rel=\"noreferrer noopener\" target=\"_blank\">Science News<\/a>,<\/em> June 21, 1969<\/p>\n<h4><strong>Update<\/strong>[hhmc]<br \/>\n<\/h4>\n<p>Many boron carbide armor components have been replaced by <a href=\"https:\/\/www.sciencenews.org\/blog\/context\/top-10-science-anniversaries-2015\" rel=\"noreferrer noopener\" target=\"_blank\">Kevlar<\/a>, which was developed around the same time (<em>SN Online: 4\/8\/15<\/em>). Made of woven synthetic polymer chains, Kevlar fast became essential wear for soldiers and law enforcement officers. More than eight times the tensile strength of steel, the textile distributes the energy of a bullet impact over a large area. Some modern body armor syste<a href=\"https:\/\/www.sciencenews.org\/article\/50-years-ago-bulletproof-armor-was-getting-light-enough-wear\" rel=\"noreferrer noopener\" target=\"_blank\"><strong>Read More \u2013 Source<\/strong><\/a><br \/>\n[contf]<br \/>\n[contfnew]<br \/>\n        <img decoding=\"async\" src=\"https:\/\/www.sciencenews.org\/profiles\/sn\/themes\/science_news\/logo.png\"\/><\/p>\n<h5><a href=\"https:\/\/app.newswirenow.co.uk\/www.sciencenews.org\" rel=\"noreferrer noopener\" target=\"_blank\">science news<\/a><\/h5>\n<p>[contfnewc]<br \/>\n[contfnewc]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Lighter bulletproof vest \u2014<\/p>\n<p>A new, lighter bulletproof armor \u2026 composed of boron carbide fibers \u2026 [i..<\/p>\n","protected":false},"author":1,"featured_media":123774,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[49],"tags":[],"class_list":["post-123773","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-science"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - 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