{"id":4836,"date":"2026-05-01T00:51:57","date_gmt":"2026-04-30T22:51:57","guid":{"rendered":"https:\/\/www.zahadyazajimavosti.cz\/?p=4836"},"modified":"2026-04-03T01:58:59","modified_gmt":"2026-04-02T23:58:59","slug":"jak-vznikly-ledove-koule","status":"publish","type":"post","link":"https:\/\/www.zahadyazajimavosti.cz\/index.php\/2026\/05\/01\/jak-vznikly-ledove-koule\/","title":{"rendered":"Jak vznikly ledov\u00e9 koule?"},"content":{"rendered":"<p><strong>Na pob\u0159e\u017e\u00ed Finsk\u00e9ho z\u00e1livu vznikly tis\u00edce ledov\u00fdch koul\u00ed. Div byl zp\u016fsoben siln\u00fdm sn\u011b\u017een\u00edm a vlnobit\u00edm<\/strong><!--more--><\/p>\n<p>Na za\u010d\u00e1tku prosince 2017 se na pob\u0159e\u017e\u00ed Finsk\u00e9ho z\u00e1livu objevily ledov\u00e9 koule. Nevznikly zde poprv\u00e9. Poka\u017ed\u00e9 v\u0161ak neobvykl\u00fd p\u0159\u00edrodn\u00ed jev zp\u016fsob\u00ed rozruch. Fotografie neobvykl\u00e9ho jevu zve\u0159ejnil Jurij \u0160achov.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-4838 size-full\" src=\"https:\/\/www.zahadyazajimavosti.cz\/wp-content\/uploads\/2026\/04\/zaz_jak-vznikly-led_koule2.jpg\" alt=\"\" width=\"450\" height=\"450\" srcset=\"https:\/\/www.zahadyazajimavosti.cz\/wp-content\/uploads\/2026\/04\/zaz_jak-vznikly-led_koule2.jpg 450w, https:\/\/www.zahadyazajimavosti.cz\/wp-content\/uploads\/2026\/04\/zaz_jak-vznikly-led_koule2-300x300.jpg 300w, https:\/\/www.zahadyazajimavosti.cz\/wp-content\/uploads\/2026\/04\/zaz_jak-vznikly-led_koule2-150x150.jpg 150w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/p>\n<p>Podle \u0160achova je velikost koul\u00ed maxim\u00e1ln\u011b 17 centimetr\u016f v pr\u016fm\u011bru. Nesna\u017eil se je vylovit z ledov\u00e9 vody, ale pe\u010dliv\u011b prozkoumal n\u011bkolik ledov\u00fdch koul\u00ed na b\u0159ehu. Uvnit\u0159 byl sn\u00edh.<\/p>\n<p>\u201eJe vid\u011bt, \u017ee kdy\u017e klesla \u00farove\u0148 sn\u011bhu, zm\u011bnily se na hrudky,\u201c p\u0159edpokl\u00e1d\u00e1. \u201eA pak se dostaly do vody a zm\u011bnily se na takov\u00e9 sn\u011bhov\u00e9 koule.\u201c<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-4837 size-full\" src=\"https:\/\/www.zahadyazajimavosti.cz\/wp-content\/uploads\/2026\/04\/zaz_jak-vznikly-led_koule1.jpg\" alt=\"\" width=\"450\" height=\"300\" srcset=\"https:\/\/www.zahadyazajimavosti.cz\/wp-content\/uploads\/2026\/04\/zaz_jak-vznikly-led_koule1.jpg 450w, https:\/\/www.zahadyazajimavosti.cz\/wp-content\/uploads\/2026\/04\/zaz_jak-vznikly-led_koule1-300x200.jpg 300w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/p>\n<p>\u201eMo\u0159sk\u00e1 voda je obrovsk\u00e9 mno\u017estv\u00ed soln\u00e9ho roztoku, a jeho krystalizace v pr\u016fb\u011bhu zmrazov\u00e1n\u00ed prob\u00edh\u00e1 nerovnom\u011brn\u011b,\u201c &#8211; vysv\u011btluje ekolog Ilja Leuchin.<\/p>\n<p>\u201eKrystaly vznikaj\u00ed kolem j\u00e1dra. V na\u0161em p\u0159\u00edpad\u011b se voda stala krystalovou m\u0159\u00ed\u017ekou kolem plynov\u00e9 bubliny nebo hydrofobn\u00ed kapaliny, a pokles vody mu dal zaoblen\u00fd tvar. P\u0159\u00edkladem kapaliny, kter\u00e1 se nerozpou\u0161t\u00ed ve vod\u011b, je olej, jeho\u017e kapka vytvo\u0159\u00ed ve vod\u011b dokonal\u00fd kruh.<\/p>\n<p>Vzhledem k tomu, \u017ee bod mrazu je vy\u0161\u0161\u00ed ne\u017e teplota vody, se uk\u00e1zalo, \u017ee kolem olejov\u00fdch skvrn vznikly molekuly vody a vznikla kulov\u00e1 t\u011blesa.\u201c<\/p>\n<p>Ov\u0161em pravd\u011bpodobnost kontaminace vod Finsk\u00e9ho z\u00e1livu olejem v oblasti Leningradsk\u00e9ho kraje je velmi mal\u00e1.<\/p>\n<p>Proto je realisti\u010dt\u011bj\u0161\u00ed verze &#8211; kus &#8222;ledov\u00e9ho tuku&#8220;.<\/p>\n<p>V roce 2016 pozorovatel\u00e9 z arktick\u00fdch a antarktick\u00fdch v\u00fdzkumn\u00fdch \u00fastav\u016f pozorovali podobn\u00e1 koule na b\u0159ez\u00edch \u0159eky Ob. A poskytli takov\u00e9 vysv\u011btlen\u00ed: po sn\u011b\u017een\u00ed se &#8222;ledov\u00fd tuk&#8220; formuje, a pak se b\u011bhem rozmrazov\u00e1n\u00ed ofoukne v\u011btrem a vlny jej dotvo\u0159\u00ed do koule.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Na pob\u0159e\u017e\u00ed Finsk\u00e9ho z\u00e1livu vznikly tis\u00edce ledov\u00fdch koul\u00ed. Div byl zp\u016fsoben siln\u00fdm sn\u011b\u017een\u00edm a vlnobit\u00edm<\/p>\n","protected":false},"author":1,"featured_media":4503,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19],"tags":[24,76],"class_list":["post-4836","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-zahady","tag-evropa","tag-rusko"],"_links":{"self":[{"href":"https:\/\/www.zahadyazajimavosti.cz\/index.php\/wp-json\/wp\/v2\/posts\/4836","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.zahadyazajimavosti.cz\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zahadyazajimavosti.cz\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zahadyazajimavosti.cz\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zahadyazajimavosti.cz\/index.php\/wp-json\/wp\/v2\/comments?post=4836"}],"version-history":[{"count":1,"href":"https:\/\/www.zahadyazajimavosti.cz\/index.php\/wp-json\/wp\/v2\/posts\/4836\/revisions"}],"predecessor-version":[{"id":4839,"href":"https:\/\/www.zahadyazajimavosti.cz\/index.php\/wp-json\/wp\/v2\/posts\/4836\/revisions\/4839"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.zahadyazajimavosti.cz\/index.php\/wp-json\/wp\/v2\/media\/4503"}],"wp:attachment":[{"href":"https:\/\/www.zahadyazajimavosti.cz\/index.php\/wp-json\/wp\/v2\/media?parent=4836"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zahadyazajimavosti.cz\/index.php\/wp-json\/wp\/v2\/categories?post=4836"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zahadyazajimavosti.cz\/index.php\/wp-json\/wp\/v2\/tags?post=4836"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}