[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.cerum.cz\/jak-muze-slunce-bez-kysliku-svitit\/#Article","mainEntityOfPage":"https:\/\/www.cerum.cz\/jak-muze-slunce-bez-kysliku-svitit\/","headline":"Jak m\u016f\u017ee Slunce bez kysl\u00edku sv\u00edtit","name":"Jak m\u016f\u017ee Slunce bez kysl\u00edku sv\u00edtit","description":"Ohe\u0148 je n\u011bco, co v\u0161ichni dob\u0159e zn\u00e1me. Pou\u017e\u00edv\u00e1me je tak\u0159ka denn\u011b, a\u0165 u\u017e p\u0159i va\u0159en\u00ed nebo k\u00a0topen\u00ed. Je tedy pochopiteln\u00e9, \u017ee jsme velmi dob\u0159e sezn\u00e1meni…","datePublished":"2024-09-30","dateModified":"2024-09-30","author":{"@type":"Person","@id":"https:\/\/www.cerum.cz\/author\/#Person","name":"","url":"https:\/\/www.cerum.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/087c2e57f451bc02fa8017914855d7c40cf6c7d5dc1637b868e007adc26322d1?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/087c2e57f451bc02fa8017914855d7c40cf6c7d5dc1637b868e007adc26322d1?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"cerum.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.cerum.cz\/wp-content\/uploads\/slunce1_7.jpg","url":"https:\/\/www.cerum.cz\/wp-content\/uploads\/slunce1_7.jpg","height":0,"width":0},"url":"https:\/\/www.cerum.cz\/jak-muze-slunce-bez-kysliku-svitit\/","about":["V\u011bda"],"wordCount":425,"articleBody":"Ohe\u0148 je n\u011bco, co v\u0161ichni dob\u0159e zn\u00e1me. Pou\u017e\u00edv\u00e1me je tak\u0159ka denn\u011b, a\u0165 u\u017e p\u0159i va\u0159en\u00ed nebo k\u00a0topen\u00ed. Je tedy pochopiteln\u00e9, \u017ee jsme velmi dob\u0159e sezn\u00e1meni s\u00a0t\u00edm, jak funguje, a jak\u00e9 m\u00e1 principy. Proto pro n\u00e1s nen\u00ed tajemstv\u00edm, \u017ee k\u00a0ho\u0159en\u00ed pot\u0159ebujeme jednak palivo, nap\u0159\u00edklad d\u0159evo, tak i kysl\u00edk, kter\u00fd je nutn\u00fd k\u00a0oxidaci, kter\u00e1 p\u0159i ho\u0159en\u00ed prob\u00edh\u00e1. To v\u0161e v\u00ed i ka\u017ed\u00e9 mal\u00e9 d\u00edt\u011b.\u00a0Proto je pro mnoho z\u00a0n\u00e1s ot\u00e1zkou, jak je mo\u017en\u00e9, \u017ee Slunce ho\u0159\u00ed. Ve vakuu vesm\u00edru toti\u017e nen\u00ed kysl\u00edk, kter\u00fd je k\u00a0ho\u0159en\u00ed pot\u0159eba. Ostatn\u011b zde nen\u00ed ani nic, co by mohlo ho\u0159et po tak dlouhou dobu. V\u00edme toti\u017e, \u017ee Slunce ji\u017e sv\u00edt\u00ed p\u0159ibli\u017en\u011b p\u011bt miliard let, a dal\u0161\u00edch p\u011bt miliard let je\u0161t\u011b bude. Jak je to mo\u017en\u00e9, kdy\u017e zde nen\u00ed p\u0159\u00edtomna ani jedna z\u00a0v\u011bc\u00ed, kter\u00e9 jsou pro ho\u0159en\u00ed nezbytn\u00e9?\u00a0\u00a0V\u00a0prvn\u00ed \u0159ad\u011b zde m\u00e1me fakt, \u017ee a\u010dkoliv n\u00e1m to tak p\u0159i zb\u011b\u017en\u00e9m pohledu m\u016f\u017ee p\u0159ipadat, nejedn\u00e1 se o ohe\u0148, jak jej zde zn\u00e1me. Teploty, kter\u00e9 na Slunci panuj\u00ed, jsou p\u0159\u00edli\u0161 vysok\u00e9 na to, aby zde v\u016fbec mohl b\u00fdt. Jedn\u00e1 se tedy o kouli velmi \u017ehav\u00e9 plazmy, a ta pracuje jin\u00fdm zp\u016fsobem.\u00a0Je pravdou, \u017ee se nejedn\u00e1 o b\u011b\u017en\u00fd ohe\u0148. Ve skute\u010dnosti Slunce neho\u0159\u00ed, n\u00fdbr\u017e se jedn\u00e1 o ob\u0159\u00ed jadern\u00fd reaktor. V\u00a0n\u011bm se p\u0159em\u011b\u0148uje helium na vod\u00edk, a jeliko\u017e jeho z\u00e1soby jsou skute\u010dn\u011b velk\u00e9, trv\u00e1 miliardy let, ne\u017e se ve\u0161ker\u00e1 p\u0159em\u011bna dokon\u010d\u00ed.\u00a0\u00a0To je ale tak\u00e9 d\u016fvod, pro\u010d je pro n\u00e1s nebezpe\u010dn\u00e9, a pro\u010d bychom bez ozonov\u00e9 vrstvy, kter\u00e1 n\u00e1s p\u0159ed nejhor\u0161\u00ed radiac\u00ed chr\u00e1n\u00ed, nemohli b\u00fdt. Radiace, i kdy\u017e poskytuje obrovsk\u00e9 mno\u017estv\u00ed tepla i sv\u011btla, je samoz\u0159ejm\u011b velmi nebezpe\u010dn\u00e1.\u00a0Proto tak\u00e9 pot\u0159ebujeme dal\u0161\u00ed ochrannou vrstvu, kterou je nap\u0159\u00edklad melanin. Ten m\u00e1me v\u00a0na\u0161\u00ed k\u016f\u017ei, a m\u00e1me jej t\u00edm v\u00edc, \u010d\u00edm v\u00edc se vystavujeme Slunci. Sp\u00e1leniny, kter\u00e9 od Slunce m\u00e1me, jsou tedy radia\u010dn\u00ed sp\u00e1leniny. I to je d\u016fvod, pro\u010d se na\u0161e hv\u011bzda d\u00e1v\u00e1 tak \u010dasto do souvislosti s\u00a0rakovinou k\u016f\u017ee, a na to bychom m\u011bli v\u017edy myslet.                                                                                                                                                                                                                                                                                                                                                                                                "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Jak m\u016f\u017ee Slunce bez kysl\u00edku sv\u00edtit","item":"https:\/\/www.cerum.cz\/jak-muze-slunce-bez-kysliku-svitit\/#breadcrumbitem"}]}]