[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.celebration.sk\/nove-vedecke-metody-studie-zemskeho-jadra\/#Article","mainEntityOfPage":"https:\/\/www.celebration.sk\/nove-vedecke-metody-studie-zemskeho-jadra\/","headline":"Nov\u00e9 vedeck\u00e9 met\u00f3dy \u0161t\u00fadie Zemsk\u00e9ho jadra","name":"Nov\u00e9 vedeck\u00e9 met\u00f3dy \u0161t\u00fadie Zemsk\u00e9ho jadra","description":"V\u00fdskumn\u00edci z Australian National University (ANU) predstavili svoju nov\u00fa \u0161t\u00fadiu, ktorou n\u00e1m chc\u00fa objasni\u0165 vznik na\u0161ej plan\u00e9ty a\u00a0s\u00fa pevne presved\u010den\u00ed, \u017ee maj\u00fa priame d\u00f4kazy o\u00a0tuhosti","datePublished":"2018-09-16","dateModified":"2023-04-25","author":{"@type":"Person","@id":"https:\/\/www.celebration.sk\/author\/#Person","name":"celebration.sk\n","url":"https:\/\/www.celebration.sk\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/93869824c8aa580f0d16049ad31e69846ffc925e0cbb2826cc9554f53943da69?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/93869824c8aa580f0d16049ad31e69846ffc925e0cbb2826cc9554f53943da69?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"celebration.sk","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.celebration.sk\/wp-content\/uploads\/img_a293440_w16470_t1542382216.jpg","url":"https:\/\/www.celebration.sk\/wp-content\/uploads\/img_a293440_w16470_t1542382216.jpg","height":0,"width":0},"url":"https:\/\/www.celebration.sk\/nove-vedecke-metody-studie-zemskeho-jadra\/","about":["Technika"],"wordCount":483,"articleBody":"V\u00fdskumn\u00edci z Australian National University (ANU) predstavili svoju nov\u00fa \u0161t\u00fadiu, ktorou n\u00e1m chc\u00fa objasni\u0165 vznik na\u0161ej plan\u00e9ty a\u00a0s\u00fa pevne presved\u010den\u00ed, \u017ee maj\u00fa priame d\u00f4kazy o\u00a0tuhosti zemsk\u00e9ho jadra. Podstata je skryt\u00e1 v\u00a0detekcii \u0161mykov\u00fdch v\u013an, ktor\u00e9 zvykn\u00fa naz\u00fdva\u0165 aj \u201eJ vlny\u201c v\u00a0jadre Zeme. Ide o\u00a0typ vlny, ktor\u00e1 je schopn\u00e1 prejs\u0165 len pevn\u00fdmi objektmi.Prv\u00e9 te\u00f3rie u\u017e za\u010diatkom minul\u00e9ho storo\u010diaV\u00fdskumom potvrdili to, \u017ee vn\u00fatorn\u00e9 jadro je skuto\u010dne tuh\u00e9, ale na druhej strane zistili, \u017ee je o\u00a0nie\u010do m\u00e4k\u0161ie ako sa predpokladalo. Z\u00a0toho vypl\u00fdva, \u017ee ak s\u00fa ich v\u00fdsledky spr\u00e1vne, tak vlastnosti vn\u00fatorn\u00e9ho jadra m\u00f4\u017eeme prirovna\u0165 k\u00a0elastick\u00fdm vlastnostiam, ak\u00e9 maj\u00fa platina a\u00a0zlato. Jadro Zeme je nie\u010do ako \u010dasov\u00e1 kapsula, jej pochopenie prinesie vysvetlenie ako sa plan\u00e9ta vyv\u00edja a ako sa formovala. Pozorova\u0165 vn\u00fatorn\u00e9 \u0161mykov\u00e9 vlny priamo nie je mo\u017en\u00e9, preto\u017ee s\u00fa ve\u013emi slab\u00e9 a\u00a0mal\u00e9. Ich detekciou sa zoberali vedci u\u017e v\u00a030-tych a\u00a040-tych rokoch minul\u00e9ho storo\u010dia a\u00a0vtedy prv\u00fdkr\u00e1t pri\u0161li s\u00a0te\u00f3riou, \u017ee vn\u00fatorn\u00e9 jadro zeme je tuh\u00e9. Tak\u017ee na rad pri\u0161li kreat\u00edvnej\u0161ie met\u00f3dy.Korela\u010dn\u00e9 vlnov\u00e9 poleMet\u00f3da tzv. Korela\u010dn\u00e9ho vlnov\u00e9ho po\u013ea sleduje podobnosti sign\u00e1lov z\u00e1rove\u0148 na dvoch prij\u00edma\u010doch nie priamo prich\u00e1dzaj\u00facich v\u013an, ale a\u017e po zemetrasen\u00ed v\u00e4\u010d\u0161\u00edch rozmerov. Je to podobn\u00e1 technika tej, ak\u00fa tento t\u00edm po\u017e\u00edva pri meran\u00ed \u013eadu v\u00a0Antarkt\u00edde. Sleduj\u00fa seizmogram medzi troma a\u017e desiatimi hodinami po zemetrasen\u00ed, pri\u010dom sa zbavuj\u00fa siln\u00fdch sign\u00e1lov. Glob\u00e1lne sie\u0165 stan\u00edc zaber\u00e1 ka\u017ed\u00fd jednotliv\u00fd prij\u00edma\u010d a\u00a0v\u0161etky zemetrasenia, \u010d\u00edm vznik\u00e1 ve\u013emi ve\u013ea kombin\u00e1ci\u00ed. A\u00a0tak len zameraj\u00fa podobnos\u0165 medzi seizmogramami, to m\u00e1 n\u00e1zov kr\u00ed\u017eov\u00e1 korel\u00e1cia a\u00a0na z\u00e1klade t\u00fdchto podobnost\u00ed vypracuj\u00fa glob\u00e1lny korelogram, \u010do prirovn\u00e1vaj\u00fa k odtla\u010dku prsta Zeme. Pod\u013ea \u0161t\u00fadie sa m\u00f4\u017eu tieto v\u00fdsledky pou\u017ei\u0165 na to, aby vedci preuk\u00e1zali existenciu \u201eJ v\u013an\u201c a\u00a0takisto aj na vyjadrenie r\u00fdchlosti \u0161mykovej vlny v\u00a0jadre, \u010do je, samozrejme, d\u00f4le\u017eit\u00e9, ale v\u00fdskum prezr\u00e1dza o\u00a0vn\u00fatornom jadre e\u0161te vzru\u0161uj\u00facej\u0161ie z\u00e1very.Pokroky vo v\u00fdskumePre vedcov je e\u0161te st\u00e1le z\u00e1hadou vek vn\u00fatorn\u00e9ho jadra, presn\u00e1 teplota alebo r\u00fdchlos\u0165, akou jadro tuhne, ale pokroky, ktor\u00e9 urobila glob\u00e1lna seizmol\u00f3gia sa k\u00a0tomu pomaly prepracuj\u00fa.Pochopenie zlo\u017eenia a\u00a0\u010dinnosti vn\u00fatorn\u00e9ho jadra Zeme je priamo prepojen\u00e9 s\u00a0udr\u017eiavan\u00edm a\u00a0vytv\u00e1ran\u00edm geomagnetick\u00e9ho po\u013ea, bez ktor\u00e9ho by nebol mo\u017en\u00fd \u017eivot na povrchu Zeme.                                                                                                                                                                                                                                                                                                                                                                                        4.2\/5 - (5 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Nov\u00e9 vedeck\u00e9 met\u00f3dy \u0161t\u00fadie Zemsk\u00e9ho jadra","item":"https:\/\/www.celebration.sk\/nove-vedecke-metody-studie-zemskeho-jadra\/#breadcrumbitem"}]}]