[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.jifas.cz\/jak-lide-zjistili-ze-je-zeme-kulata\/#Article","mainEntityOfPage":"https:\/\/www.jifas.cz\/jak-lide-zjistili-ze-je-zeme-kulata\/","headline":"Jak lid\u00e9 zjistili, \u017ee je Zem\u011b kulat\u00e1","name":"Jak lid\u00e9 zjistili, \u017ee je Zem\u011b kulat\u00e1","description":"O tom, jak\u00fd tvar m\u00e1 na\u0161e planeta, nen\u00ed sporu. M\u00e1me nes\u010detn\u00e9 sn\u00edmky z\u00a0ob\u011b\u017en\u00e9 dr\u00e1hy i vzd\u00e1len\u011bj\u0161\u00edho vesm\u00edru, kter\u00e9 n\u00e1m jej jasn\u011b ukazuj\u00ed. Av\u0161ak to, \u017ee na\u0161e planeta je koule, v\u011bd\u011bly ji\u017e n\u00e1rody p\u0159ed v\u00edce ne\u017e dv\u011bma tis\u00edci lety, a\u010dkoliv v\u00a0t\u00e9 dob\u011b nem\u011bly n\u011bco takov\u00e9ho k\u00a0dispozici. A nejen to, dok\u00e1zaly tak\u00e9 s\u00a0pozoruhodnou p\u0159esnost\u00ed vypo\u010d\u00edtat jej\u00ed rozm\u011bry. […]","datePublished":"2022-12-30","dateModified":"2023-11-30","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\/art474447_16x9_20260928_154824_WAx03E.jpg","url":"https:\/\/www.jifas.cz\/wp-content\/uploads\/art474447_16x9_20260928_154824_WAx03E.jpg","height":0,"width":0},"url":"https:\/\/www.jifas.cz\/jak-lide-zjistili-ze-je-zeme-kulata\/","about":["V\u011bda"],"wordCount":412,"articleBody":"\tO tom, jak\u00fd tvar m\u00e1 na\u0161e planeta, nen\u00ed sporu. M\u00e1me nes\u010detn\u00e9 sn\u00edmky z\u00a0ob\u011b\u017en\u00e9 dr\u00e1hy i vzd\u00e1len\u011bj\u0161\u00edho vesm\u00edru, kter\u00e9 n\u00e1m jej jasn\u011b ukazuj\u00ed. Av\u0161ak to, \u017ee na\u0161e planeta je koule, v\u011bd\u011bly ji\u017e n\u00e1rody p\u0159ed v\u00edce ne\u017e dv\u011bma tis\u00edci lety, a\u010dkoliv v\u00a0t\u00e9 dob\u011b nem\u011bly n\u011bco takov\u00e9ho k\u00a0dispozici. A nejen to, dok\u00e1zaly tak\u00e9 s\u00a0pozoruhodnou p\u0159esnost\u00ed vypo\u010d\u00edtat jej\u00ed rozm\u011bry.\tJe v\u0161ak pravdou, \u017ee m\u011bli jin\u00e9 d\u016fkazy, kter\u00e9 m\u00e1me k\u00a0dispozici je\u0161t\u011b dnes. A ty, a\u010dkoliv jsou nep\u0159\u00edm\u00e9, n\u00e1m jasn\u011b ukazuj\u00ed to sam\u00e9, co modern\u00ed satelitn\u00ed sn\u00edmky. Nen\u00ed tedy na \u0161kodu se pod\u00edvat, jak se vlastn\u011b lid\u00e9 tehdy dop\u00eddili k\u00a0pravd\u011b.\tPrvn\u00ed v\u011bc\u00ed, kter\u00e1 si z\u00edskala jejich pozornost, byly lod\u011b vzdaluj\u00edc\u00ed se p\u0159es horizont \u010di se na n\u011bm objevuj\u00edc\u00ed. Ji\u017e tehdy si toti\u017e v\u0161imli, \u017ee prvn\u00ed v\u011bc\u00ed, kter\u00e1 zmiz\u00ed, je spodek, a postupuje se d\u00e1le a\u017e k\u00a0nejvy\u0161\u0161\u00edm st\u011b\u017e\u0148\u016fm. Kdy\u017e naopak p\u0159iplouvaly, t\u00edm prvn\u00edm, co bylo vid\u011bt, byly pr\u00e1v\u011b vrcholky plachet. N\u011bco takov\u00e9ho by na placat\u00e9 Zemi nebylo mo\u017en\u00e9.\t\tJakmile pak lid\u00e9 za\u010dali v\u00edce cestovat, v\u0161imli si, \u017ee na severn\u00ed polokouli jsou vid\u011bt jin\u00e9 hv\u011bzdy, ne\u017e na t\u00e9 ji\u017en\u00ed. Tuto skute\u010dnost znali velmi dob\u0159e nap\u0159\u00edklad n\u00e1mo\u0159n\u00edci, kte\u0159\u00ed se podle nich navigovali. Op\u011bt, n\u011bco takov\u00e9ho nen\u00ed na placce mo\u017en\u00e9.\tD\u00e1le jsou tu z\u00e1pady a v\u00fdchody Slunce. To se toti\u017e nezmen\u0161uje, dokud nezmiz\u00ed, jak by tomu bylo, kdyby se od n\u00e1s vzdalovalo. Nam\u00edsto toho si zachov\u00e1v\u00e1 svou velikost, dokud neklesne pod horizont. S\u00a0t\u00edm souvis\u00ed tak\u00e9 fakt, \u017ee polovina planety m\u00e1 sv\u011btlo, zat\u00edmco ta druh\u00e1 tmu.\tV\u00a0neposledn\u00ed \u0159ad\u011b je tu i fakt, \u017ee nap\u0159\u00edklad slune\u010dn\u00ed hodiny funguj\u00ed, co\u017e by na placce zkr\u00e1tka nebylo mo\u017en\u00e9. I proto si ji\u017e na\u0161i d\u00e1vn\u00ed p\u0159edkov\u00e9 spr\u00e1vn\u011b odvodili tvar Zem\u011b, kter\u00fd byl pozd\u011bji jen potvrzen pou\u017eit\u00edm modern\u00edch technologi\u00ed.\tSamoz\u0159ejm\u011b se st\u00e1le najdou lid\u00e9, kte\u0159\u00ed o tom pochybuj\u00ed, av\u0161ak t\u011bch je pouh\u00e9 minimum. Abyste se p\u0159esv\u011bd\u010dili na vlastn\u00ed o\u010di, nemus\u00edte ani opustit na\u0161i planetu.                                                                                                                                                                                                                                                                                                                                                                                                "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Jak lid\u00e9 zjistili, \u017ee je Zem\u011b kulat\u00e1","item":"https:\/\/www.jifas.cz\/jak-lide-zjistili-ze-je-zeme-kulata\/#breadcrumbitem"}]}]