{"id":473,"date":"2019-11-06T21:02:01","date_gmt":"2019-11-06T21:02:01","guid":{"rendered":"https:\/\/eportfolios.capilanou.ca\/szewong2\/?p=473"},"modified":"2019-12-03T23:56:00","modified_gmt":"2019-12-03T23:56:00","slug":"survey-8-geopolitics-during-ww1","status":"publish","type":"post","link":"https:\/\/eportfolios.capilanou.ca\/szewong2\/2019\/11\/06\/survey-8-geopolitics-during-ww1\/","title":{"rendered":"Survey 8 (Geopolitics during WW1)"},"content":{"rendered":"\n<p>Sisy Wong<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"413\" src=\"https:\/\/eportfolios.capilanou.ca\/szewong2\/wp-content\/uploads\/sites\/9744\/2019\/12\/Artillery_sound_ranging_schematic_-_en.png\" alt=\"\" class=\"wp-image-620\" srcset=\"https:\/\/eportfolios.capilanou.ca\/szewong2\/wp-content\/uploads\/sites\/9744\/2019\/12\/Artillery_sound_ranging_schematic_-_en.png 500w, https:\/\/eportfolios.capilanou.ca\/szewong2\/wp-content\/uploads\/sites\/9744\/2019\/12\/Artillery_sound_ranging_schematic_-_en-300x248.png 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><figcaption>Triangulation<\/figcaption><\/figure><\/div>\n\n\n\n<p>During the beginning of World War I, neither sides have effective methods that can pinpoint the location of the enemy artillery and they have no clue where were the big guns as there were usually placed outside sight. Thus, they created a tactic called <strong>Triangulation<\/strong>.<\/p>\n\n\n\n<p>Triangulation is a technique for the soldiers to determine the location of a ship\u2019s or aircraft, and the direction of roads, tunnels, or other structures under construction. \u00a0It is based on the laws of\u00a0plane trigonometry, which state that, if one side and two angles of a triangle are known, the other two sides and angles can be readily calculated.\u00a0One side of the selected triangle is measured; this is the baseline. The two\u00a0adjacent angles are measured by means of a surveying device known as a\u00a0theodolite, and the entire triangle is established.\u00a0By constructing a series of such triangles, each adjacent to at least one other triangle, values can be obtained for distances and angles not otherwise measurable. This triangulation method has been used by the ancient Egyptians, Greeks, and other peoples\u00a0in the early centuries.<\/p>\n\n\n\n<p>This new triangulation method was conceived by the Danish astronomer\u00a0<em>Tycho Brahe<\/em>\u00a0before the end of the 16th century but was actually created by a contemporary Dutch mathematician called\u00a0Willebrord van Roijen Snell as a science. <\/p>\n\n\n\n<p>In 1669, a French astronomer called Jean Picard. He first used a telescope in determining the latitude and in measuring angles in triangulation that consisted of 13 triangles and extended from Paris 1.2\u00b0 northward. His observations and results were very important as his length of the arc on a perfect circle corresponding to 1\u00b0 were used by the English physicist and mathematician\u00a0Sir Isaac Newton\u00a0in his theoretical calculations to prove that the attraction of Earth is the principal force governing the motion of the Moon in its orbit.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignleft\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"243\" src=\"https:\/\/eportfolios.capilanou.ca\/szewong2\/wp-content\/uploads\/sites\/9744\/2019\/12\/500px-GeneralSchematic.png\" alt=\"\" class=\"wp-image-621\" srcset=\"https:\/\/eportfolios.capilanou.ca\/szewong2\/wp-content\/uploads\/sites\/9744\/2019\/12\/500px-GeneralSchematic.png 500w, https:\/\/eportfolios.capilanou.ca\/szewong2\/wp-content\/uploads\/sites\/9744\/2019\/12\/500px-GeneralSchematic-300x146.png 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><figcaption>Triangulation<\/figcaption><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignright\"><img loading=\"lazy\" decoding=\"async\" width=\"550\" height=\"371\" src=\"https:\/\/eportfolios.capilanou.ca\/szewong2\/wp-content\/uploads\/sites\/9744\/2019\/12\/WWI-image3.jpg\" alt=\"\" class=\"wp-image-617\" srcset=\"https:\/\/eportfolios.capilanou.ca\/szewong2\/wp-content\/uploads\/sites\/9744\/2019\/12\/WWI-image3.jpg 550w, https:\/\/eportfolios.capilanou.ca\/szewong2\/wp-content\/uploads\/sites\/9744\/2019\/12\/WWI-image3-300x202.jpg 300w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><figcaption>theodolite WWI<\/figcaption><\/figure><\/div>\n\n\n\n<p>Sources: <a href=\"https:\/\/www.abc.net.au\/science\/articles\/2015\/03\/03\/4183839.htm\">https:\/\/www.abc.net.au\/science\/articles\/2015\/03\/03\/4183839.htm<\/a>, <a href=\"https:\/\/www.britannica.com\/science\/triangulation-trigonometry\">https:\/\/www.britannica.com\/science\/triangulation-trigonometry<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Sisy Wong During the beginning of World War I, neither sides have effective methods that can pinpoint the location of the enemy artillery and they have no clue where were the big guns as there were usually placed outside sight. Thus, they created a tactic called Triangulation. Triangulation is a technique for the soldiers to &hellip; <a href=\"https:\/\/eportfolios.capilanou.ca\/szewong2\/2019\/11\/06\/survey-8-geopolitics-during-ww1\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Survey 8 (Geopolitics during WW1)<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":9752,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-473","post","type-post","status-publish","format-standard","hentry","category-141-r"],"_links":{"self":[{"href":"https:\/\/eportfolios.capilanou.ca\/szewong2\/wp-json\/wp\/v2\/posts\/473","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/eportfolios.capilanou.ca\/szewong2\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/eportfolios.capilanou.ca\/szewong2\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/eportfolios.capilanou.ca\/szewong2\/wp-json\/wp\/v2\/users\/9752"}],"replies":[{"embeddable":true,"href":"https:\/\/eportfolios.capilanou.ca\/szewong2\/wp-json\/wp\/v2\/comments?post=473"}],"version-history":[{"count":19,"href":"https:\/\/eportfolios.capilanou.ca\/szewong2\/wp-json\/wp\/v2\/posts\/473\/revisions"}],"predecessor-version":[{"id":628,"href":"https:\/\/eportfolios.capilanou.ca\/szewong2\/wp-json\/wp\/v2\/posts\/473\/revisions\/628"}],"wp:attachment":[{"href":"https:\/\/eportfolios.capilanou.ca\/szewong2\/wp-json\/wp\/v2\/media?parent=473"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/eportfolios.capilanou.ca\/szewong2\/wp-json\/wp\/v2\/categories?post=473"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/eportfolios.capilanou.ca\/szewong2\/wp-json\/wp\/v2\/tags?post=473"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}