{"id":2360,"date":"2024-04-14T00:16:09","date_gmt":"2024-04-13T22:16:09","guid":{"rendered":"https:\/\/www.zahadyazajimavosti.cz\/?p=2360"},"modified":"2024-04-02T21:18:53","modified_gmt":"2024-04-02T19:18:53","slug":"podivne-utvary-na-snimcich-z-marsu-14","status":"publish","type":"post","link":"https:\/\/www.zahadyazajimavosti.cz\/index.php\/2024\/04\/14\/podivne-utvary-na-snimcich-z-marsu-14\/","title":{"rendered":"Podivn\u00e9 \u00fatvary na sn\u00edmc\u00edch z Marsu (14)"},"content":{"rendered":"

Na Marsu n\u011bkdo namaloval 296 spir\u00e1l. V\u011bdci p\u0159edpokl\u00e1daj\u00ed, \u017ee vznikly p\u016fsoben\u00edm l\u00e1vy<\/strong><\/p>\n

Postgradu\u00e1ln\u00ed student Andrew Ryan (1) z University v Arizon\u011b (USA) a jeho kolegov\u00e9 studovali sn\u00edmky z kamery HiRISE sondy Mars Reconnaissance Orbiter (2). Objevili na dn\u011b \u00fadol\u00ed Athabasca (3), bl\u00edzko rovn\u00edku, n\u011bco neobvykl\u00e9ho – jako by n\u011bkdo z v\u00fd\u0161ky nar\u00fdsoval podivn\u00e9 spir\u00e1ly o pr\u016fm\u011bru 5-30 metr\u016f. Celkem – 296 spir\u00e1l na plo\u0161e 90 km\u00b2.<\/p>\n

\"\"<\/p>\n

\u017de by autor spir\u00e1l byl p\u0159\u00edbuzn\u00fd autor\u016fm slavn\u00fdch rytin na peru\u00e1nsk\u00e9 Nazce?<\/p>\n

Samoz\u0159ejm\u011b, \u017ee v\u011bdci si to nemysl\u00ed. Podle jejich m\u00edn\u011bn\u00ed mohly rytiny vznikat pouze v d\u016fsledku sope\u010dn\u00fdch proces\u016f.<\/p>\n

\u00dadol\u00ed Athabasca je v\u011bdc\u016fm zn\u00e1m\u00e9 pro sv\u00e9 velk\u00e9 tmav\u00e9 desky, kter\u00e9 jakoby plavou v \u0159e\u010di\u0161ti. N\u011bkomu to m\u016f\u017ee m\u016f\u017ee p\u0159ipom\u00ednat ledov\u00e9 kry Severn\u00edho ledov\u00e9ho oce\u00e1nu. Jen\u017ee tady jsme jen 4-5 stup\u0148\u016f od mar\u0165ansk\u00e9ho rovn\u00edku.<\/p>\n

\"\"<\/p>\n

M\u00edsto vypad\u00e1 jako ledov\u00e1 krajina, ale vytvo\u0159ila ho l\u00e1va. Kdy\u017e se proud roztaven\u00e9 horniny ochlad\u00ed, na povrchu se utvo\u0159\u00ed k\u016fra. K\u016fra p\u0159i ochlazen\u00ed zmen\u0161uje, puk\u00e1, z\u00edsk\u00e1v\u00e1 tvar mnoho\u00faheln\u00edku, podobn\u011b jako pozemsk\u00e9 ledov\u00e9 kry.<\/p>\n

Spir\u00e1ly mohly vzniknout na vrchn\u00ed vrstv\u011b chladnouc\u00edho jezera l\u00e1vy, proud\u00edc\u00ed z praskliny na severo-v\u00fdchod\u011b a postupuj\u00edc\u00ed n\u00ed\u017ee po d\u0159\u00edve vytvo\u0159en\u00fdch kan\u00e1lech. K\u016fra se krabatila a zkroutila do spir\u00e1lovit\u00e9to tvaru.<\/p>\n

Existuje i dal\u0161\u00ed vysv\u011btlen\u00ed. Dva proudy l\u00e1vy, postupuj\u00edc\u00ed v r\u016fzn\u00fdch sm\u011brech a r\u016fzn\u00fdmi rychlostmi, pro\u0161ly vedle sebe, a vytvo\u0159ily spir\u00e1lu.<\/p>\n

Odkazy<\/em><\/strong><\/p>\n

(1) http:\/\/sese.asu.edu\/people\/andrew-ryan<\/a> <\/em>
\n(2) http:\/\/www.nasa.gov\/mission_pages\/MRO\/main\/index.html<\/a> <\/em>
\n(3) http:\/\/en.wikipedia.org\/wiki\/Athabasca_Valles<\/a><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

Na Marsu n\u011bkdo namaloval 296 spir\u00e1l. V\u011bdci p\u0159edpokl\u00e1daj\u00ed, \u017ee vznikly p\u016fsoben\u00edm l\u00e1vy<\/p>\n","protected":false},"author":1,"featured_media":470,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19],"tags":[65],"class_list":["post-2360","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-zahady","tag-mars"],"_links":{"self":[{"href":"https:\/\/www.zahadyazajimavosti.cz\/index.php\/wp-json\/wp\/v2\/posts\/2360","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=2360"}],"version-history":[{"count":1,"href":"https:\/\/www.zahadyazajimavosti.cz\/index.php\/wp-json\/wp\/v2\/posts\/2360\/revisions"}],"predecessor-version":[{"id":2363,"href":"https:\/\/www.zahadyazajimavosti.cz\/index.php\/wp-json\/wp\/v2\/posts\/2360\/revisions\/2363"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.zahadyazajimavosti.cz\/index.php\/wp-json\/wp\/v2\/media\/470"}],"wp:attachment":[{"href":"https:\/\/www.zahadyazajimavosti.cz\/index.php\/wp-json\/wp\/v2\/media?parent=2360"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zahadyazajimavosti.cz\/index.php\/wp-json\/wp\/v2\/categories?post=2360"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zahadyazajimavosti.cz\/index.php\/wp-json\/wp\/v2\/tags?post=2360"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}