{"id":5641,"date":"2021-12-25T22:33:03","date_gmt":"2021-12-25T22:33:03","guid":{"rendered":"https:\/\/presswiki.allmath.gr\/wpwiki18\/?p=5641"},"modified":"2021-12-25T22:36:45","modified_gmt":"2021-12-25T22:36:45","slug":"%ce%ba%ce%ac%ce%bd%ce%bf%ce%bd%cf%84%ce%b1%cf%82-%cf%84%ce%b5%cf%84%cf%81%ce%ac%ce%b3%cf%89%ce%bd%ce%b5%cf%82-%cf%84%cf%81%cf%8d%cf%80%ce%b5%cf%82-%cf%84%cf%81%ce%af%ce%b3%cf%89%ce%bd%ce%b1-re","status":"publish","type":"post","link":"https:\/\/presswiki.allmath.gr\/wpwiki18\/2021\/12\/25\/22\/33\/03\/5641\/","title":{"rendered":"\u039a\u03ac\u03bd\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b5\u03c4\u03c1\u03ac\u03b3\u03c9\u03bd\u03b5\u03c2 \u03c4\u03c1\u03cd\u03c0\u03b5\u03c2\u00a0 &#8211; \u03a4\u03c1\u03af\u03b3\u03c9\u03bd\u03b1 Reuleaux &#8211; Drilling Square Holes &#8211; YouTube"},"content":{"rendered":"<p><a href=\"https:\/\/youtu.be\/rjckF0-VeGI\">https:\/\/youtu.be\/rjckF0-VeGI<\/a><\/p>\n<p>\u00a0<\/p>\n<p><span class=\"css-901oao css-16my406 r-poiln3 r-bcqeeo r-qvutc0\">A Reuleaux triangle\u2014a shape of constant width\u2014can rotate in a square so that it fills the whole square except little bits in the corners. So, in 1914 Harry James Watts designed a drill bit that can drill a square hole. Here&#8217;s a video of the bit in action<\/span><\/p>\n\n\n<figure class=\"wp-block-embed-youtube wp-block-embed is-type-video is-provider-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"Triangle wheeled bike - Burning Man 2012\" width=\"840\" height=\"473\" src=\"https:\/\/www.youtube.com\/embed\/BeOS9pG6vjU?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<figure class=\"wp-block-embed-youtube wp-block-embed\"><div class=\"wp-block-embed__wrapper\">\nhttps:\/\/youtu.be\/rjckF0-VeGI\n<\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>https:\/\/youtu.be\/rjckF0-VeGI \u00a0 A Reuleaux triangle\u2014a shape of constant width\u2014can rotate in a square so that it fills the whole square except little bits in the corners. So, in 1914 Harry James Watts designed a drill bit that can drill a square hole. Here&#8217;s a video of the bit in action<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[390,16],"tags":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/presswiki.allmath.gr\/wpwiki18\/wp-json\/wp\/v2\/posts\/5641"}],"collection":[{"href":"https:\/\/presswiki.allmath.gr\/wpwiki18\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/presswiki.allmath.gr\/wpwiki18\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/presswiki.allmath.gr\/wpwiki18\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/presswiki.allmath.gr\/wpwiki18\/wp-json\/wp\/v2\/comments?post=5641"}],"version-history":[{"count":2,"href":"https:\/\/presswiki.allmath.gr\/wpwiki18\/wp-json\/wp\/v2\/posts\/5641\/revisions"}],"predecessor-version":[{"id":5643,"href":"https:\/\/presswiki.allmath.gr\/wpwiki18\/wp-json\/wp\/v2\/posts\/5641\/revisions\/5643"}],"wp:attachment":[{"href":"https:\/\/presswiki.allmath.gr\/wpwiki18\/wp-json\/wp\/v2\/media?parent=5641"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/presswiki.allmath.gr\/wpwiki18\/wp-json\/wp\/v2\/categories?post=5641"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/presswiki.allmath.gr\/wpwiki18\/wp-json\/wp\/v2\/tags?post=5641"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}