[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.mirond.cz\/proc-se-talir-v-mikrovlnce-musi-tocit\/#Article","mainEntityOfPage":"https:\/\/www.mirond.cz\/proc-se-talir-v-mikrovlnce-musi-tocit\/","headline":"Pro\u010d se tal\u00ed\u0159 v mikrovlnce mus\u00ed to\u010dit?","name":"Pro\u010d se tal\u00ed\u0159 v mikrovlnce mus\u00ed to\u010dit?","description":"N\u011bkter\u00e9 \u0161ikovn\u00e9 dom\u00e1c\u00ed spot\u0159ebi\u010de pou\u017e\u00edv\u00e1me s ka\u017edodenn\u00ed samoz\u0159ejmost\u00ed. A ani \u010dasto nev\u00edme, jak vlastn\u011b funguj\u00ed. T\u0159eba takov\u00e1 \u201eoby\u010dejn\u00e1\u201c mikrovlnn\u00e1 trouba. Pro\u010d se tam j\u00eddlo vlastn\u011b","datePublished":"2025-02-27","dateModified":"2025-02-27","author":{"@type":"Person","@id":"https:\/\/www.mirond.cz\/author\/devene\/#Person","name":"devene","url":"https:\/\/www.mirond.cz\/author\/devene\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/afe3e9c307ddf0b756c397ad75c6ecdba1f9da628b10651fe33a13bba6407ccd?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/afe3e9c307ddf0b756c397ad75c6ecdba1f9da628b10651fe33a13bba6407ccd?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"mirond.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.mirond.cz\/wp-content\/uploads\/img_a341384_w2773_t1554030349.jpg","url":"https:\/\/www.mirond.cz\/wp-content\/uploads\/img_a341384_w2773_t1554030349.jpg","height":0,"width":0},"url":"https:\/\/www.mirond.cz\/proc-se-talir-v-mikrovlnce-musi-tocit\/","wordCount":467,"articleBody":"N\u011bkter\u00e9 \u0161ikovn\u00e9 dom\u00e1c\u00ed spot\u0159ebi\u010de pou\u017e\u00edv\u00e1me s ka\u017edodenn\u00ed samoz\u0159ejmost\u00ed. A ani \u010dasto nev\u00edme, jak vlastn\u011b funguj\u00ed. T\u0159eba takov\u00e1 \u201eoby\u010dejn\u00e1\u201c mikrovlnn\u00e1 trouba. Pro\u010d se tam j\u00eddlo vlastn\u011b oh\u0159eje? Pro\u010d tam n\u011bkter\u00e9 n\u00e1dob\u00ed nem\u00e1me d\u00e1vat? Pro\u010d se oh\u0159\u00edvan\u00e9 pokrmy na tal\u00ed\u0159i mus\u00ed to\u010dit?   Magnetron Kdy\u017e v roce 1945 pan Percy Spencer vyr\u00e1b\u011bl magnetron pro radar, asi ani netu\u0161il, co dal\u0161\u00edho objev\u00ed! V kapse m\u011bl p\u0159i t\u00e9to \u010dinnosti tabulku \u010dokol\u00e1dy. A ta se mu tam rozpustila. Zjistil, \u017ee to provedly mikrovlny. A objevil mo\u017enost, jak jejich pomoc\u00ed oh\u0159\u00edvat. Za dva roky byla na sv\u011bt\u011b prvn\u00ed mikrovlnka. Tu bychom ale do dne\u0161n\u00edch kuchy\u0148sk\u00fdch linek asi hodn\u011b t\u011b\u017eko umis\u0165ovali, hlavn\u011b do vy\u0161\u0161\u00edch m\u00edst. V\u00e1\u017eila toti\u017e cca 400 kilogram\u016f! Mus\u00ed tam b\u00fdt voda Z\u00e1kladn\u00edm je, aby to, co hodl\u00e1me v mikrovlnn\u00e9 troub\u011b oh\u0159\u00edvat, obsahovalo vodu. Jen tak maj\u00ed mikrovlny co \u201erozkmit\u00e1vat\u201c. Molekula vody se skl\u00e1d\u00e1 ze dvou atom\u016f vod\u00edku a jednoho atomu kysl\u00edku. To je zn\u00e1m\u00e1 v\u011bc. Jejich spojen\u00edm vznik\u00e1 dip\u00f3l tvaru \u0161ipky. Ten nen\u00ed symetrick\u00fd. Proto ani elektrick\u00e9 n\u00e1boje nejsou v rovnov\u00e1ze. Mikrovlny mohou tedy zp\u016fsobit jejich kmit\u00e1n\u00ed. Vznik\u00e1 tak hodn\u011b energie, kter\u00e1 vodu (a tud\u00ed\u017e v\u0161e co vodu obsahuje) zah\u0159\u00edv\u00e1. Pro\u010d se tal\u00ed\u0159 mus\u00ed to\u010dit Je to zkr\u00e1tka z toho d\u016fvodu, aby se j\u00eddlo oh\u0159\u00e1lo rovnom\u011brn\u011b. Mikrovlny se v p\u0159\u00edstroji r\u016fzn\u011b odr\u00e1\u017e\u00ed o st\u011bny. Vytv\u00e1\u0159\u00ed tak m\u00edsta \u201emaxim\u201c a \u201eminim\u201c p\u016fsoben\u00ed. Z\u00e1kladna, kter\u00e1 se ot\u00e1\u010d\u00ed, eliminuje jejich vliv a zaji\u0161\u0165uje rovnom\u011brnost oh\u0159evu. Co do mikrovlnky ned\u00e1v\u00e1me a pro\u010d kovy Kdy\u017e dojde k tomu, \u017ee mikrovlny rozkmitaj\u00ed molekuly kovu, vznikne siln\u00fd elektrick\u00fd proud! N\u00e1sleduje sp\u00e1len\u00ed materi\u00e1lu doprov\u00e1zen\u00e9 jisk\u0159en\u00edm! cel\u00e1 vejce Vnit\u0159ek vejce se za\u010dne va\u0159it a vznikl\u00e1 p\u00e1ra. Ta se ve vejci shroma\u017e\u010fuje. Kon\u010d\u00ed to pak jeho v\u00fdbuchem! ledov\u00fd tal\u00ed\u0159 J\u00eddlo bude rychle hork\u00e9. Tal\u00ed\u0159 zah\u0159eje p\u0159\u00edli\u0161 prudce a ten s nejv\u011bt\u0161\u00ed pravd\u011bpodobnost\u00ed praskne.  uzav\u0159en\u00e9 mikrotenov\u00e9 s\u00e1\u010dky J\u00eddlo v mikrotenov\u00e9m s\u00e1\u010dku oh\u0159\u00edvat samoz\u0159ejm\u011b lze, je ov\u0161em pot\u0159eba ho prop\u00edchnout, pokud je uzav\u0159en. Jinak dojde k situaci viz vejce v\u00fd\u0161e. Nahromad\u00ed se v n\u011bm p\u00e1ra a exploduje! Mikrovlnn\u00e1 trouba je zkr\u00e1tka u\u017eite\u010dn\u00fdm vyn\u00e1lezem, kter\u00fd se ov\u0161em v rukou neinformovan\u00e9ho u\u017eivatele m\u016f\u017ee st\u00e1t i \u201enebezpe\u010dnou zbran\u00ed\u201c. Je dobr\u00e9 se sezn\u00e1mit s principy jej\u00edho fungov\u00e1n\u00ed v\u010das!                                                                                                                                                                                                                                                                                                                                                                                                 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