{"id":8988,"date":"2025-04-14T10:57:06","date_gmt":"2025-04-14T08:57:06","guid":{"rendered":"https:\/\/websrv.saske.sk\/uef\/?p=8988"},"modified":"2025-04-14T10:59:36","modified_gmt":"2025-04-14T08:59:36","slug":"extremne-nizke-teploty-zaujali-publikum-v-roznave","status":"publish","type":"post","link":"https:\/\/websrv.saske.sk\/uef\/extremne-nizke-teploty-zaujali-publikum-v-roznave\/","title":{"rendered":"Extr\u00e9mne n\u00edzke teploty zaujali publikum v Ro\u017e\u0148ave"},"content":{"rendered":"

Predn\u00e1\u0161ka Mgr. Pavla Szab\u00f3a, CSc. z Centra fyziky n\u00edzkych tepl\u00f4t \u00daEF SAV, v. v. i., od\u0161tartovala s\u00e9riu popul\u00e1rno-vedeck\u00fdch predn\u00e1\u0161ok vedcov a vedk\u00fd\u0148 SAV Vivat Scientia! Nech \u017eije veda!<\/i>\u00a0v\u00a0Ro\u017e\u0148ave. Publikum sa v\u010faka p\u00fatav\u00e9mu rozpr\u00e1vaniu a viacer\u00fdm experimentom dozvedelo o\u00a0pozoruhodnom svete n\u00edzkych tepl\u00f4t a\u00a0v\u00fdskume, v\u00a0ktorom vedeck\u00fd t\u00edm zo Slovenskej akad\u00e9mie vied patr\u00ed k\u00a0t\u00fdm najlep\u0161\u00edm na svete.<\/b><\/p>\n

Dlhoro\u010dn\u00fd v\u00fdskumn\u00edk v oblasti fyziky n\u00edzkych tepl\u00f4t z\u00a0ko\u0161ick\u00e9ho pracoviska Ro\u017e\u0148av\u010danom v p\u00f4sobiv\u00fdch priestoroch KC Kl\u00e1\u0161tor\u00a0 pribl\u00ed\u017eil, pre\u010do extr\u00e9mne n\u00edzke teploty otv\u00e1raj\u00fa cestu k nov\u00fdm poznatkom o vlastnostiach materi\u00e1lov a javoch, ktor\u00e9 be\u017ene nevid\u00edme. Vysvetlil aj to, ako vedci v laborat\u00f3ri\u00e1ch dok\u00e1\u017eu dosiahnu\u0165 teploty bl\u00edzke absol\u00fatnej nule \u2013 teda m\u00ednus 273,15 \u00b0C \u2013 a \u010do v\u0161etko sa v tak\u00fdch podmienkach d\u00e1 pozorova\u0165.<\/p>\n

\u201ePri ve\u013emi n\u00edzkych teplot\u00e1ch sa spr\u00e1vanie l\u00e1tok \u00faplne men\u00ed \u2013 materi\u00e1ly odha\u013euj\u00fa svoje skryt\u00e9 vlastnosti, ktor\u00e9 pri be\u017en\u00fdch podmienkach zakr\u00fdva tepeln\u00fd \u0161um,\u201c<\/i>\u00a0vysvetlil P. Szab\u00f3. Demon\u0161tr\u00e1cie z predn\u00e1\u0161ky uk\u00e1zali, ako sa be\u017en\u00e9 materi\u00e1ly ako guma \u010di kvapaliny pri ochladen\u00ed menia na krehk\u00e9 alebo prchav\u00e9 l\u00e1tky.<\/p>\n

Jednou z najp\u00f4sobivej\u0161\u00edch uk\u00e1\u017eok bola magnetick\u00e1 levit\u00e1cia supravodi\u010da \u2013 materi\u00e1lu, ktor\u00fd po ochladen\u00ed dok\u00e1\u017ee vies\u0165 elektrick\u00fd pr\u00fad bez odporu a z\u00e1rove\u0148 \u201evytl\u00e1\u010da\u201c magnetick\u00e9 pole zo svojho vn\u00fatra.\u00a0\u201eTak\u00e9to materi\u00e1ly maj\u00fa obrovsk\u00fd aplika\u010dn\u00fd potenci\u00e1l \u2013 od magnetickej rezonancie cez vysokor\u00fdchlostn\u00e9 vlaky a\u017e po kvantov\u00e9 po\u010d\u00edta\u010de,\u201c<\/i>\u00a0zd\u00f4raznil fyzik.<\/p>\n

Predn\u00e1\u0161ka nebola len o fyzike \u2013 bola o zvedavosti, vynaliezavosti a o tom, ako aj slovensk\u00e9 laborat\u00f3ri\u00e1 m\u00f4\u017eu by\u0165 s\u00fa\u010das\u0165ou svetovej vedy. Publikum ocenilo najm\u00e4 interakt\u00edvny pr\u00edstup, zrozumite\u013enos\u0165 v\u00fdkladu a mo\u017enos\u0165 nahliadnu\u0165 do inak nevidite\u013en\u00e9ho sveta bl\u00edzkeho absol\u00fatnej nule.<\/p>\n

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Prevzat\u00e9 z Aktuality SAV<\/a><\/p>\n

 <\/p>\n

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\"\"<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Predn\u00e1\u0161ka Mgr. Pavla Szab\u00f3a, CSc. z Centra fyziky n\u00edzkych tepl\u00f4t \u00daEF SAV, v. v. i., od\u0161tartovala s\u00e9riu popul\u00e1rno-vedeck\u00fdch predn\u00e1\u0161ok vedcov a vedk\u00fd\u0148 SAV Vivat Scientia!…<\/p>\n","protected":false},"author":11,"featured_media":8989,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/websrv.saske.sk\/uef\/wp-json\/wp\/v2\/posts\/8988"}],"collection":[{"href":"https:\/\/websrv.saske.sk\/uef\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/websrv.saske.sk\/uef\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/websrv.saske.sk\/uef\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/websrv.saske.sk\/uef\/wp-json\/wp\/v2\/comments?post=8988"}],"version-history":[{"count":4,"href":"https:\/\/websrv.saske.sk\/uef\/wp-json\/wp\/v2\/posts\/8988\/revisions"}],"predecessor-version":[{"id":8995,"href":"https:\/\/websrv.saske.sk\/uef\/wp-json\/wp\/v2\/posts\/8988\/revisions\/8995"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/websrv.saske.sk\/uef\/wp-json\/wp\/v2\/media\/8989"}],"wp:attachment":[{"href":"https:\/\/websrv.saske.sk\/uef\/wp-json\/wp\/v2\/media?parent=8988"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/websrv.saske.sk\/uef\/wp-json\/wp\/v2\/categories?post=8988"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/websrv.saske.sk\/uef\/wp-json\/wp\/v2\/tags?post=8988"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}