{"id":1091,"date":"2021-02-10T23:24:41","date_gmt":"2021-02-10T21:24:41","guid":{"rendered":"http:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/?post_type=portfolio&#038;p=1091"},"modified":"2021-02-10T23:24:41","modified_gmt":"2021-02-10T21:24:41","slug":"surveyors-prism-2","status":"publish","type":"portfolio","link":"https:\/\/www.museoscienzebergamo.it\/fisicaalmuseo\/en\/strumenti-en\/surveyors-prism-2\/","title":{"rendered":"Surveyor&#8217;s prism"},"content":{"rendered":"<p class=\"p1\"><span class=\"s1\">Cylindrical surveying tool with eight vertical slits arranged symmetrically around the side. It is mounted on a rod with a joint that fits onto a tripod base. A plumb bob fixed to a screw on the side allows the instrument to be set up vertically.<br \/>\n<\/span><span style=\"font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen-Sans, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;\">By sighting markers on the ground through the slits, lines at angles that were multiples of 45\u00b0 could be laid out.<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\">Device on display.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Cylindrical surveying tool with eight vertical slits arranged symmetrically around the side. It is mounted on a rod with a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":521,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"open","template":"","meta":{"footnotes":""},"portfolio_category":[25],"class_list":["post-1091","portfolio","type-portfolio","status-publish","has-post-thumbnail","hentry","portfolio_category-measurement"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Surveyor&#039;s prism | fisicaalmuseo.it<\/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.museoscienzebergamo.it\/fisicaalmuseo\/en\/strumenti-en\/surveyors-prism-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Surveyor&#039;s prism | fisicaalmuseo.it\" \/>\n<meta property=\"og:description\" content=\"Cylindrical surveying tool with eight vertical slits arranged symmetrically around the side. 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