{"id":39428,"date":"2024-09-19T12:19:38","date_gmt":"2024-09-19T10:19:38","guid":{"rendered":"https:\/\/otpor.media\/?p=39428"},"modified":"2024-09-19T12:19:42","modified_gmt":"2024-09-19T10:19:42","slug":"kako-se-zapravo-mjeri-visina-planine","status":"publish","type":"post","link":"https:\/\/otpor.media\/?p=39428","title":{"rendered":"Kako se zapravo mjeri visina planine?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Mount Everest je najvi\u0161a planina na svijetu, visoka 8. 849 metara &#8211; ali kako smo to shvatili? Zapravo, kako uop\u0107e znamo koliko je neka planina visoka?<\/p>\n\n\n\n<p class=\"has-text-align-center has-vivid-red-color has-text-color has-link-color wp-elements-1 wp-block-paragraph\"><strong>Trigonometrija<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Naime ne postoji mjerna vrpca koja je dovoljno duga da bi se uspje\u0161no izmjerila visina planine pa se stoga odgovor krije u trigonometriji.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">To\u010dnije, radi se o metodi koja se naziva triangulacija, a koja zahtijeva poznavanje udaljenosti izme\u0111u dvije to\u010dke na tlu i kuta izme\u0111u obje te to\u010dke i vrha planine.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Visina planina, mjeri se od razine mora \u2013 koja bi, teoretski, trebala biti ista na cijelom planetu \u2013 tako da odre\u0111ivanje visine tako\u0111er zahtijeva da osoba koja vr\u0161i mjerenje zna na kojoj nadmorskoj visini se nalazi to\u010dka na tlu od koje \u017eele mjeriti visinu planine. Tako\u0111er, potrebno je uzeti u obzir zakrivljenost zemljine povr\u0161ine.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Budu\u0107i da se radi o mjerenju planina koristi se ure\u0111aj koji se naziva teodolit. Rije\u010d je o opti\u010dki preciznom instrumentu koji izgleda kao teleskop i mo\u017ee mjeriti vodoravne i okomite kutove.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Uz dva kuta i duljinu jedne strane \u201ctrokuta\u201c, mo\u017eete sve te brojeve spojiti u nekoliko trigonometrijskih formula (koriste\u0107i pravilo sinusa i Heronovu formulu) i tako do\u0107i do visine planine.<\/p>\n\n\n\n<p class=\"has-text-align-center has-vivid-red-color has-text-color has-link-color wp-elements-2 wp-block-paragraph\"><strong>Atmosferska refrakcija<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Me\u0111utim, ova povijesno kori\u0161tena metoda nije nu\u017eno najto\u010dnija. Na primjer, kad su \u010dasnik britanske vojske Sir Andrew Scott Waugh i njegov tim mjerili visinu Mount Everesta u sklopu Velikog trigonometrijskog istra\u017eivanja, zemljina atmosfera im je zasmetala.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Svjetlo se mo\u017ee savijati u atmosferi, \u0161to je poznato i kao atmosferska refrakcija. Do toga dolazi zbog promjene u gusto\u0107i zraka. Ova pojava mo\u017ee biti izra\u017eenija na ve\u0107im udaljenostima, a budu\u0107u da tada objekti koji se mjere mogu izgledati ni\u017ee ili vi\u0161e nego \u0161to uistinu jesu, napravljena mjerenja mogu biti neto\u010dna.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Danas je jednostavnije i daleko to\u010dnije izmjeriti nadmorsku visinu planine kori\u0161tenjem GPS-a. To je dobra stvar kada je u pitanju Mount Everest, jer se njegova visina zapravo mo\u017ee mijenjati \u2013 ne zbog promjena u metodama mjerenja, ve\u0107 zbog geolo\u0161kih doga\u0111aja poput potresa.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>OTPOR<sup>.Media<\/sup><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mount Everest je najvi\u0161a planina na svijetu, visoka 8. 849 metara &#8211; ali kako smo to shvatili? Zapravo, kako uop\u0107e znamo koliko je neka planina visoka? Trigonometrija Naime ne postoji mjerna vrpca koja je dovoljno duga da bi se uspje\u0161no izmjerila visina planine pa se stoga odgovor krije u trigonometriji. To\u010dnije, radi se o metodi [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":39429,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"iawp_total_views":18,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[162,93],"tags":[],"class_list":["post-39428","post","type-post","status-publish","format-standard","has-post-thumbnail","category-ostale-rubrike","category-zanimljivosti-misteriji"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.5 (Yoast SEO v28.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Kako se zapravo mjeri visina planine? - OTPOR.Media<\/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:\/\/otpor.media\/?p=39428\" \/>\n<meta property=\"og:locale\" content=\"hr_HR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Kako se zapravo mjeri visina planine?\" \/>\n<meta property=\"og:description\" content=\"Mount Everest je najvi\u0161a planina na svijetu, visoka 8. 849 metara &#8211; ali kako smo to shvatili? Zapravo, kako uop\u0107e znamo koliko je neka planina visoka? Trigonometrija Naime ne postoji mjerna vrpca koja je dovoljno duga da bi se uspje\u0161no izmjerila visina planine pa se stoga odgovor krije u trigonometriji. 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