{"id":418,"date":"2012-02-22T05:20:00","date_gmt":"2012-02-22T05:20:00","guid":{"rendered":"http:\/\/dbbd.sg\/blog\/uncategorized\/the-perimeter-of-pulau-ubin\/"},"modified":"2012-02-22T05:20:00","modified_gmt":"2012-02-22T05:20:00","slug":"the-perimeter-of-pulau-ubin","status":"publish","type":"post","link":"https:\/\/dbbd.sg\/blog\/2012\/02\/the-perimeter-of-pulau-ubin\/","title":{"rendered":"The Perimeter of Pulau Ubin"},"content":{"rendered":"<p><center><a href=\"http:\/\/www.flickr.com\/photos\/arielst0rm7\/6773464924\/\" title=\"Picture 2 by punctuum, on Flickr\"><img loading=\"lazy\" src=\"http:\/\/farm8.staticflickr.com\/7210\/6773464924_8a3c44b3a6_z.jpg\" width=\"640\" height=\"284\" alt=\"Picture 2\" \/><\/a><\/center><\/p>\n<p>The estimated perimeter of Pulau Ubin is approximately 23km.<\/p>\n<p>At an estimated rate of 1 hour per 5km, this endeavour would take at least 4.6 hour. Since I am very unfit, perhaps this will be closer to 5 hours or even 6 hours, while also having to find one&#8217;s way around as there is no actual footpath or route.<\/p>\n<p>Next, I will be looking for cheap GPS real-time receiver and an old map of Singapore. A GPS receiver will be much more accurate than my iPhone and can be used to map out the actual route taken around Pulau Ubin. I would also be able to go geocaching or make up some geocache variant. Looks like prices are below SG$100 so its not a costly investment either.<\/p>\n<p>The Global Positioning System uses a set of 27 satellites (24 are in use, 3 are backups) which orbits earth at about 19300km above ground. At any one time and from any location on earth, there will be at least 4 satellites within &#8220;visible&#8221; line-of-sight. The GPS receiver sends a signal trying to locate at least 3 of these satellites and from the signal it receives back from the satellites, it uses trilateration in 3d space to calculate the actual position of the GPS device on earth.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The estimated perimeter of Pulau Ubin is approximately 23km. At an estimated rate of 1 hour per 5km, this endeavour would take at least 4.6 hour. Since I am very unfit, perhaps this will be closer to 5 hours or even 6 hours, while also having to find one&#8217;s way around as there is no [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[770,951],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/dbbd.sg\/blog\/wp-json\/wp\/v2\/posts\/418"}],"collection":[{"href":"https:\/\/dbbd.sg\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dbbd.sg\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dbbd.sg\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dbbd.sg\/blog\/wp-json\/wp\/v2\/comments?post=418"}],"version-history":[{"count":0,"href":"https:\/\/dbbd.sg\/blog\/wp-json\/wp\/v2\/posts\/418\/revisions"}],"wp:attachment":[{"href":"https:\/\/dbbd.sg\/blog\/wp-json\/wp\/v2\/media?parent=418"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dbbd.sg\/blog\/wp-json\/wp\/v2\/categories?post=418"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dbbd.sg\/blog\/wp-json\/wp\/v2\/tags?post=418"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}