{"id":464229,"date":"2021-12-30T08:09:30","date_gmt":"2021-12-30T07:09:30","guid":{"rendered":"https:\/\/hudo.com\/si\/2021\/12\/30\/snezni-topovi-ze-zdaj-na-polno-delajo-sneg-za-oi-cez-dva-meseca\/"},"modified":"2021-12-30T08:09:30","modified_gmt":"2021-12-30T07:09:30","slug":"snezni-topovi-ze-zdaj-na-polno-delajo-sneg-za-oi-cez-dva-meseca","status":"publish","type":"post","link":"https:\/\/hudo.com\/si\/sport\/snezni-topovi-ze-zdaj-na-polno-delajo-sneg-za-oi-cez-dva-meseca\/","title":{"rendered":"Sne\u017eni topovi \u017ee zdaj na polno delajo sneg za OI \u010dez dva meseca"},"content":{"rendered":"<figure>\n\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"660\" height=\"320\" src=\"image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" data-src=\"https:\/\/moski.hudo.com\/wp-content\/uploads\/2021\/12\/profimedia-0643419014-320x155.jpg\" data-srcset=\"https:\/\/moski.hudo.com\/wp-content\/uploads\/2021\/12\/profimedia-0643419014-660x320.jpg 660w,https:\/\/moski.hudo.com\/wp-content\/uploads\/2021\/12\/profimedia-0643419014-320x155.jpg 330w\" \/><figcaption>Prizori\u0161\u010de OI na Kitajskem \/ Profimedia<\/figcaption><\/figure>\n<p>Nekaj ve\u010d kot mesec dni pred odprtjem iger svetlo rumeni sne\u017eni topovi nenehno bruhajo drobne sne\u017ene kosmi\u010de, da pripravijo teren za smu\u010darje v Yanqingu, prizori\u0161\u010du olimpijskih iger, oddaljenem skoraj 80 kilometrov od Pekinga.<\/p>\n<p>Upo\u0161tevajo\u010d uradno oceno, objavljeno leta 2019, bodo za pripravo snega za vsa olimpijska prizori\u0161\u010da porabili pribli\u017eno 185 milijonov litrov vode. Tak\u0161na poraba vode na obmo\u010dju, ki ga prizadenejo su\u0161e, je vir kritik \u0161tevilnih okoljskih organizacij.<\/p>\n<p>&#8220;Organiziranje olimpijskih iger v tej regiji je odklon, je neodgovorno,&#8221; obsoja geografinja Carmen de Jong z univerze v Strasbourgu, navaja AFP. &#8220;Lahko bi izvedli tudi olimpijske igre na Luni ali na Marsu,&#8221; se je ob tem po\u0161alila.<\/p>\n<p>Organizatorji trdijo, da topove poganja obnovljiva elektrika in da se bo voda po taljenju snega vrnila nazaj v zemljo.<\/p>\n<p>Olimpijske igre v Pekingu bodo prve zimske igre, ki se bodo v celoti zana\u0161ale na umetno zasne\u017eevanje, \u010deprav so se pri izpeljavi prej\u0161njih zimskih olimpijskih iger leta 2018 v Pyeongchangu v Ju\u017eni Koreji \u017ee morali v 90 odstotkih zate\u010di k umetnemu zasne\u017eevanju.<\/p>\n<p>Skupno je na poligonih, na\u010drtovanih v Yanqingu in drugem olimpijskem prizori\u0161\u010du v Zhangjiakouju, name\u0161\u010denih 300 sne\u017enih topov italijanske znamke TechnoAlpin, ki bruhajo sneg, preden bodo z ratraki strojno utrdili pobo\u010dja.<\/p>\n<p>&#8220;Za nas je najve\u010dji izziv ohraniti enotno kakovost snega,&#8221; je dejal Li Xin, uradnik na postaji Yanqing.<\/p>\n<p>Razli\u010dice v procesu proizvodnje snega &#8220;lahko naredijo, da je na nekaterih odsekih pretrd, na drugih pa premehak, kar bi lahko bilo nevarno za tekmovalce&#8221;, ugotavlja.<\/p>\n<p>Ob globalnem segrevanju bodo &#8220;ne glede na lokacijo olimpijskih iger vedno sne\u017eni topovi&#8221;, napoveduje Florian Hajzeri, generalni direktor TechnoAlpina za Kitajsko, \u0161e navaja AFP.<\/p>\n<p>Naravni sneg nastane pri zamrzovanju vodne pare, umetni pa pri zamrzovanju teko\u010de vode. Naravni ima v svoji sestavi veliko ve\u010d zraka. Ker so osnovni delci snega med seboj razli\u010dni, se tudi njune lastnosti razlikujejo, zaradi \u010desar je tudi smuka druga\u010dna.<\/p>\n<p>Sne\u017eni top je sestavljen iz razli\u010dnih vrst \u0161ob, kompresorja, ki stiska zrak, in dovoda teko\u010de vode. Skozi del \u0161ob v notranjosti topa pr\u0161ijo majhne kapljice vode, skozi drug del \u0161ob pa piha stisnjen zrak. Stisnjenemu zraku po izpihu iz \u0161obe pade tlak, zato se ohladi. Ko se hladen zrak sre\u010da s kapljicami vode v topu, se kapljice ohladijo in zamrznejo, tvorijo se majhna ledena zrna. Na zunanjem obodu topa je name\u0161\u010dena \u0161e ena vrsta \u0161ob, ki pr\u0161i zelo majhne kapljice vode. Te kapljice se sre\u010dajo z ledenimi zrni, ki so nastala v notranjosti topa in tvorijo umetne sne\u017einke.<\/p>\n<p>Umetni sneg je bolj kompakten in stisnjen kot naravni, zato je bolj odporen na vi\u0161je temperature. Smu\u010darski delavci se sicer izrazu umetni sneg izogibajo in raje uporabljajo izraz tehni\u010dni sneg, saj med izdelavo ne dodajajo nobenih umetnih snovi.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Organizatorji se bodo za izpeljavo februarskih zimskih olimpijskih iger v eni najbolj suhih regij na Kitajskem v celoti zana\u0161ali na sne\u017ene topove in tako imenovani umetni oziroma tehni\u010dni sneg, navaja francoska tiskovna agencija AFP.<\/p>\n","protected":false},"author":1,"featured_media":464230,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18176],"tags":[3751],"source":[1518,1556],"supertag":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Sne\u017eni topovi \u017ee zdaj na polno delajo sneg za OI \u010dez dva meseca - Hudo Slovenija<\/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:\/\/hudo.com\/si\/sport\/snezni-topovi-ze-zdaj-na-polno-delajo-sneg-za-oi-cez-dva-meseca\/\" \/>\n<meta property=\"og:locale\" content=\"sl_SI\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Sne\u017eni topovi \u017ee zdaj na polno delajo sneg za OI \u010dez dva meseca - 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