[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.spusa.cz\/proc-je-nebe-modre\/#Article","mainEntityOfPage":"https:\/\/www.spusa.cz\/proc-je-nebe-modre\/","headline":"Pro\u010d je nebe modr\u00e9","name":"Pro\u010d je nebe modr\u00e9","description":"To, \u017ee je nebe modr\u00e9, v\u011bd\u00ed u\u017e mal\u00e9 d\u011bti. Pova\u017eujeme to za takovou samoz\u0159ejmost, \u017ee se nad t\u00edm ani nezam\u00fd\u0161l\u00edme. P\u0159esto, kdy\u017e se pod\u00edv\u00e1me na fotografie nap\u0159\u00edklad z\u00a0Marsu, vid\u00edme, \u017ee tam je obloha \u010derven\u00e1. Ov\u0161em to, \u017ee u n\u00e1s m\u00e1 modrou barvu, rozhodn\u011b nen\u00ed n\u00e1hoda. Abychom pochopili, pro\u010d tomu tak je, mus\u00edme se nejprve pod\u00edvat, […]","datePublished":"2022-12-30","dateModified":"2023-11-30","author":{"@type":"Person","@id":"https:\/\/www.spusa.cz\/author\/#Person","name":"","url":"https:\/\/www.spusa.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/4a71ad3e3da672fdab00dac6e0f7e744f8cb217202b101d0ffab0cf07645e95c?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/4a71ad3e3da672fdab00dac6e0f7e744f8cb217202b101d0ffab0cf07645e95c?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"spusa.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.spusa.cz\/wp-content\/uploads\/art474429_16x9_20260928_131411_gUQslr.jpg","url":"https:\/\/www.spusa.cz\/wp-content\/uploads\/art474429_16x9_20260928_131411_gUQslr.jpg","height":0,"width":0},"url":"https:\/\/www.spusa.cz\/proc-je-nebe-modre\/","about":["V\u011bda"],"wordCount":417,"articleBody":"\tTo, \u017ee je nebe modr\u00e9, v\u011bd\u00ed u\u017e mal\u00e9 d\u011bti. Pova\u017eujeme to za takovou samoz\u0159ejmost, \u017ee se nad t\u00edm ani nezam\u00fd\u0161l\u00edme. P\u0159esto, kdy\u017e se pod\u00edv\u00e1me na fotografie nap\u0159\u00edklad z\u00a0Marsu, vid\u00edme, \u017ee tam je obloha \u010derven\u00e1. Ov\u0161em to, \u017ee u n\u00e1s m\u00e1 modrou barvu, rozhodn\u011b nen\u00ed n\u00e1hoda.\tAbychom pochopili, pro\u010d tomu tak je, mus\u00edme se nejprve pod\u00edvat, jak vlastn\u011b barvy vznikaj\u00ed. Jedn\u00e1 se toti\u017e pouze o odraz ur\u010dit\u00e9 \u010d\u00e1sti slune\u010dn\u00edho spektra. To obsahuje ve\u0161ker\u00e9 barvy, av\u0161ak t\u00e9m\u011b\u0159 \u017e\u00e1dn\u00fd p\u0159edm\u011bt je neodr\u00e1\u017e\u00ed v\u0161echny. V\u011bt\u0161inou se to t\u00fdk\u00e1 pouze jedn\u00e9 \u010di n\u011bkolika m\u00e1lo. A to se t\u00fdk\u00e1 i nebe. Od \u010deho se Slunce ale odr\u00e1\u017e\u00ed tam?\tZde je nutn\u00e9 si uv\u011bdomit, \u017ee a\u010dkoliv se n\u00e1m to nezd\u00e1, i ve vzduchu najdeme nejr\u016fzn\u011bj\u0161\u00ed \u010d\u00e1stice. A nejen ty prachov\u00e9, n\u00fdbr\u017e i molekuly. A ve vrchn\u00edch vrstv\u00e1ch atmosf\u00e9ry se pak nach\u00e1z\u00ed ozonov\u00e1 vrstva, kter\u00e1 n\u00e1s chr\u00e1n\u00ed p\u0159ed \u0161kodliv\u00fdmi slune\u010dn\u00edmi paprsky. To v\u00a0podstat\u011b znamen\u00e1, \u017ee se od n\u00ed valn\u00e1 \u010d\u00e1st slune\u010dn\u00edho z\u00e1\u0159en\u00ed odr\u00e1\u017e\u00ed.\tOz\u00f3n je tvo\u0159en t\u0159emi atomy kysl\u00edku. A pr\u00e1v\u011b kysl\u00edk m\u00e1 modrou barvu. O tom se m\u016f\u017ee ostatn\u011b p\u0159esv\u011bd\u010dit ka\u017ed\u00fd, kdo jej uvid\u00ed v\u00a0kapaln\u00e9 podob\u011b nap\u0159\u00edklad v\u00a0laborato\u0159i. A proto\u017ee se od n\u011bj \u010d\u00e1st sv\u011btla odr\u00e1\u017e\u00ed, v\u00fdsledkem je, \u017ee nebe nad Zem\u00ed m\u00e1 modrou barvu, a i p\u0159i pohledu z\u00a0vesm\u00edru m\u016f\u017eeme kolem na\u0161\u00ed planety spat\u0159it modr\u00fd obal.\tTo je pr\u00e1v\u011b rozd\u00edl oproti nap\u0159\u00edklad Marsu, kter\u00fd \u017e\u00e1dnou atmosf\u00e9ru nem\u00e1. Zde je nebe \u010derven\u00e9, nebo\u0165 se odr\u00e1\u017e\u00ed od prachov\u00fdch \u010d\u00e1stic, kter\u00e9 jsou v\u0161ude ve vzduchu. Na M\u011bs\u00edci nap\u0159\u00edklad nic takov\u00e9ho nenajdeme \u2013 i za dne je obloha \u010dern\u00e1, nebo\u0165 zde nen\u00ed nic, od \u010deho by se mohly paprsky odr\u00e1\u017eet.\t\tZ\u00a0v\u00fd\u0161e uveden\u00e9ho je jasn\u00e9, \u017ee jak\u00e1koliv planeta, kter\u00e1 bude vhodn\u00e1 pro lidsk\u00fd \u017eivot, mus\u00ed m\u00edt mimo jin\u00e9 modr\u00e9 nebe. Pr\u00e1v\u011b to je toti\u017e znakem oz\u00f3nov\u00e9 vrstvy, kter\u00e1 je pro p\u0159e\u017eit\u00ed nejen n\u00e1s, ale v\u0161ech \u017eiv\u00fdch organism\u016f, nezbytn\u00e1. Bez n\u00ed by toti\u017e na n\u00e1s dopadalo a\u017e p\u0159\u00edli\u0161 mnoho radiace, kter\u00e1 rozhodn\u011b nen\u00ed pro n\u00e1s p\u0159\u00edzniv\u00e1.                                                                                                                                                                                                                                                                                                                                                                                                "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Pro\u010d je nebe modr\u00e9","item":"https:\/\/www.spusa.cz\/proc-je-nebe-modre\/#breadcrumbitem"}]}]