[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.jifas.cz\/proc-na-slunci-neni-ohen\/#Article","mainEntityOfPage":"https:\/\/www.jifas.cz\/proc-na-slunci-neni-ohen\/","headline":"Pro\u010d na Slunci nen\u00ed ohe\u0148","name":"Pro\u010d na Slunci nen\u00ed ohe\u0148","description":"Pokud se n\u011bkoho zept\u00e1te na nejobvyklej\u0161\u00ed p\u0159edstavu Slunce, v\u011bt\u0161inou se bude jednat o obrovskou ho\u0159\u00edc\u00ed kouli. To je v\u0161ak od pravdy na m\u00edle vzd\u00e1leno. Ve skute\u010dnosti zde toti\u017e dokonce ani nenajdeme ohe\u0148. Jak tedy tato p\u0159edstava vlastn\u011b vznikla? Jednodu\u0161e proto, \u017ee pr\u00e1v\u011b ohe\u0148 byl pro na\u0161e p\u0159edky prakticky jedin\u00fdm zdrojem sv\u011btla, a nedovedli si p\u0159edstavit, […]","datePublished":"2023-09-28","dateModified":"2024-01-02","author":{"@type":"Person","@id":"https:\/\/www.jifas.cz\/author\/#Person","name":"","url":"https:\/\/www.jifas.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/c36ac855b1ee9cce96e09824fb5426d6eaccd04233fbf51e04e067ccd1b5fe13?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/c36ac855b1ee9cce96e09824fb5426d6eaccd04233fbf51e04e067ccd1b5fe13?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"jifas.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.jifas.cz\/wp-content\/uploads\/art478051_3x2_20261001_032655_wCUN3d.jpg","url":"https:\/\/www.jifas.cz\/wp-content\/uploads\/art478051_3x2_20261001_032655_wCUN3d.jpg","height":0,"width":0},"url":"https:\/\/www.jifas.cz\/proc-na-slunci-neni-ohen\/","about":["V\u011bda"],"wordCount":411,"articleBody":"\tPokud se n\u011bkoho zept\u00e1te na nejobvyklej\u0161\u00ed p\u0159edstavu Slunce, v\u011bt\u0161inou se bude jednat o obrovskou ho\u0159\u00edc\u00ed kouli. To je v\u0161ak od pravdy na m\u00edle vzd\u00e1leno. Ve skute\u010dnosti zde toti\u017e dokonce ani nenajdeme ohe\u0148. Jak tedy tato p\u0159edstava vlastn\u011b vznikla?\tJednodu\u0161e proto, \u017ee pr\u00e1v\u011b ohe\u0148 byl pro na\u0161e p\u0159edky prakticky jedin\u00fdm zdrojem sv\u011btla, a nedovedli si p\u0159edstavit, \u017ee n\u011bco dovede sv\u00edtit a z\u00e1rove\u0148 h\u0159\u00e1t, ani\u017e by to ho\u0159elo. Tento instinkt je v\u00a0n\u00e1s tak pevn\u011b zako\u0159en\u011bn\u00fd, \u017ee je uplat\u0148ujeme i dnes navzdory v\u011bdeck\u00e9mu pokroku a r\u016fzn\u00fdm sv\u011bteln\u00fdm zdroj\u016fm, kter\u00e9 jsme od t\u00e9 doby vynalezli.\tKdy\u017e se v\u0161ak nad celou v\u011bc\u00ed zamysl\u00edme, zjist\u00edme, \u017ee zde ho\u0159et ani nem\u016f\u017ee. Nen\u00ed zde toti\u017e \u017e\u00e1dn\u00fd kysl\u00edk, kter\u00fd ohe\u0148 bezpodm\u00edne\u010dn\u011b pot\u0159ebuje. Sv\u011bteln\u00fd zdroj, kter\u00fd se zde uplat\u0148uje, je toti\u017e \u00fapln\u011b jin\u00fd a ve vesm\u00edru mnohem obvyklej\u0161\u00ed, ne\u017e je pr\u00e1v\u011b ohe\u0148.\tT\u00edm n\u011b\u010d\u00edm je jadern\u00e1 reakce. Jist\u011b, m\u016f\u017eeme \u0159\u00edci, \u017ee tu p\u0159eci vid\u011bt nem\u016f\u017eeme. To v\u0161ak nen\u00ed tak docela pravda. Sta\u010d\u00ed si vzpomenout na oslepuj\u00edc\u00ed z\u00e1blesk po detonaci jadern\u00e9 bomby a neskute\u010dn\u00e9 teplo, kter\u00e9 v\u00a0bl\u00edzk\u00e9m okol\u00ed dan\u00e9ho m\u00edsta vznikne. Zde se jedn\u00e1 o ten sam\u00fd princip, pouze s\u00a0t\u00edm rozd\u00edlem, \u017ee ona \u201edetonace\u201c prob\u00edh\u00e1 v\u00a0podstat\u011b neust\u00e1le, a tak\u00e9 v\u00a0mnohem, mnohem v\u011bt\u0161\u00edm m\u011b\u0159\u00edtku. To je tak\u00e9 d\u016fvod, pro\u010d sv\u011btlo a teplo dok\u00e1\u017ee doputovat a\u017e k\u00a0n\u00e1m, a\u010dkoliv jsme miliony kilometr\u016f vzd\u00e1leni.\t\tOv\u0161em sou\u010d\u00e1st\u00ed v\u00fdbuchu atomov\u00e9 bomby je tak\u00e9 obrovsk\u00fd hluk. A je pravdou, \u017ee i Slunce vyd\u00e1v\u00e1 takov\u00fd r\u00e1mus, kter\u00fd by byl ohlu\u0161uj\u00edc\u00ed i na na\u0161\u00ed planet\u011b, pokud bychom jej sly\u0161eli. U\u0161et\u0159eni jsme toho pouze proto, \u017ee ve vakuu se nem\u00e1 zvuk jak \u0161\u00ed\u0159it.\tJe tedy jasn\u00e9, \u017ee Slunce rozhodn\u011b nen\u00ed jen ho\u0159\u00edc\u00ed koul\u00ed, kter\u00e1 se pohybuje po obloze. Ve skute\u010dnosti jde o jadern\u00fd reaktor, kter\u00fd n\u00e1m sice poskytuje sv\u011btlo a teplo, ale z\u00e1rove\u0148 m\u016f\u017ee b\u00fdt tak\u00e9 nebezpe\u010dn\u00fd. Pr\u00e1v\u011b slune\u010dn\u00ed radiace je toti\u017e z\u00a0velk\u00e9 \u010d\u00e1sti zodpov\u011bdn\u00e1 za rakovinu k\u016f\u017ee \u2013 a t\u00e9 se chce ka\u017ed\u00fd z\u00a0n\u00e1s vyhnout.                                                                                                                                                                                                                                                                                                                                                                                                "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Pro\u010d na Slunci nen\u00ed ohe\u0148","item":"https:\/\/www.jifas.cz\/proc-na-slunci-neni-ohen\/#breadcrumbitem"}]}]