[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.klagip.cz\/jak-jiz-stari-rekove-vedeli-ze-je-zeme-kulata\/#Article","mainEntityOfPage":"https:\/\/www.klagip.cz\/jak-jiz-stari-rekove-vedeli-ze-je-zeme-kulata\/","headline":"Jak ji\u017e sta\u0159\u00ed \u0158ekov\u00e9 v\u011bd\u011bli, \u017ee je Zem\u011b kulat\u00e1","name":"Jak ji\u017e sta\u0159\u00ed \u0158ekov\u00e9 v\u011bd\u011bli, \u017ee je Zem\u011b kulat\u00e1","description":"Jednou z\u00a0v\u011bc\u00ed, o kter\u00fdch se p\u0159\u00edli\u0161 nepochybuje, je fakt, \u017ee na\u0161e Zem\u011b m\u00e1 kulat\u00fd tvar. Koneckonc\u016f, abychom se o tom","datePublished":"2022-03-22","dateModified":"2023-05-05","author":{"@type":"Person","@id":"https:\/\/www.klagip.cz\/author\/#Person","name":"","url":"https:\/\/www.klagip.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/86b519ae28c05e7834416117bec12e679aa78b8940db1f26d4a52ad5648f8c3a?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/86b519ae28c05e7834416117bec12e679aa78b8940db1f26d4a52ad5648f8c3a?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"klagip.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.klagip.cz\/wp-content\/uploads\/zeme2_3.jpg","url":"https:\/\/www.klagip.cz\/wp-content\/uploads\/zeme2_3.jpg","height":0,"width":0},"url":"https:\/\/www.klagip.cz\/jak-jiz-stari-rekove-vedeli-ze-je-zeme-kulata\/","about":["V\u011bda"],"wordCount":430,"articleBody":"Jednou z\u00a0v\u011bc\u00ed, o kter\u00fdch se p\u0159\u00edli\u0161 nepochybuje, je fakt, \u017ee na\u0161e Zem\u011b m\u00e1 kulat\u00fd tvar. Koneckonc\u016f, abychom se o tom p\u0159esv\u011bd\u010dili, sta\u010d\u00ed n\u00e1m pod\u00edvat se na kteroukoliv z\u00a0fotografi\u00ed, kter\u00e9 n\u00e1m denn\u011b p\u0159in\u00e1\u0161\u00ed satelity, um\u00edst\u011bn\u00e9 na ob\u011b\u017en\u00e9 dr\u00e1ze.\u00a0Pravdou ov\u0161em je, \u017ee o tvaru na\u0161\u00ed planety velmi dob\u0159e v\u011bd\u011bli ji\u017e anti\u010dt\u00ed \u0158ekov\u00e9. Dokonce dok\u00e1zali vypo\u010d\u00edtat obvod rovn\u00edku s\u00a0udivuj\u00edc\u00ed p\u0159esnost\u00ed. Jak to ale dok\u00e1zali, kdy\u017e nem\u011bli k\u00a0dispozici nic jin\u00e9ho ne\u017e pom\u011brn\u011b primitivn\u00ed techniku?\u00a0\u00a0Ve \u0161kol\u00e1ch se u\u010d\u00edme, \u017ee t\u00edm hlavn\u00edm d\u016fkazem byl fakt, \u017ee odplouvaj\u00edc\u00ed lodi mizely za horizontem odspodu, a naopak kdy\u017e p\u0159iplouvaj\u00ed, vid\u00edme nejprve vr\u0161ky sto\u017e\u00e1r\u016f a plachet. To je samoz\u0159ejm\u011b pom\u011brn\u011b z\u00e1va\u017en\u00fd d\u016fkaz, ov\u0161em rozhodn\u011b nen\u00ed jedin\u00fd, kter\u00fd m\u011bli k\u00a0dispozici.\u00a0T\u00edm dal\u0161\u00edm byla rozd\u00edln\u00e1 d\u00e9lka st\u00edn\u016f v\u00a0rozd\u00edln\u00fdch m\u00edstech, kter\u00e1 jsou od sebe pom\u011brn\u011b dost vzd\u00e1len\u00e1. Pr\u00e1v\u011b tak dok\u00e1zali vypo\u010d\u00edtat jej\u00ed obvod \u2013 v\u00a0den jarn\u00ed rovnodennosti zm\u011b\u0159ili na m\u00edstech vzd\u00e1len\u00fdch od sebe v\u00a0severoji\u017en\u00edm sm\u011bru d\u00e9lku st\u00edn\u016f, kter\u00e9 vrhaly k\u016fly ur\u010dit\u00e9 d\u00e9lky zatlu\u010den\u00e9 do zem\u011b. N\u00e1sledn\u011b pak pou\u017eit\u00edm jednoduch\u00e9 geometrie vypo\u010d\u00edtali, jak\u00fd je obvod na\u0161\u00ed planety, a to s\u00a0na tu dobu podivuhodnou p\u0159esnost\u00ed.\u00a0\u00a0Ov\u0161em to nen\u00ed jedin\u00fd d\u016fkaz, kter\u00fd o tvaru na\u0161\u00ed planety m\u00e1me. Pat\u0159\u00ed sem nap\u0159\u00edklad i fakt, \u017ee ani p\u0159es vodu nevid\u00edme u mo\u0159e \u010di oce\u00e1nu druh\u00fd b\u0159eh. Pokud nap\u0159\u00edklad stoj\u00edme na z\u00e1padn\u00edm b\u0159ehu Anglie, rozhodn\u011b nedohl\u00e9dneme na v\u00fdchodn\u00ed b\u0159eh Spojen\u00fdch st\u00e1t\u016f, a to ani v\u00a0p\u0159\u00edpad\u011b, kdy je voda klidn\u00e1.\u00a0V\u00a0neposledn\u00ed \u0159ad\u011b jsou zde tak\u00e9 zatm\u011bn\u00ed M\u011bs\u00edce, kdy vid\u00edme p\u0159es n\u011bj p\u0159ech\u00e1zet st\u00edn na\u0161\u00ed planety, a je jasn\u011b vid\u011bt, \u017ee m\u00e1 tvar koule.\u00a0Tyto v\u0161echny d\u016fkazy jasn\u011b nazna\u010duj\u00ed, \u017ee i bez pou\u017eit\u00ed modern\u00edch technologi\u00ed si m\u016f\u017eeme b\u00fdt tvarem Zem\u011b v\u00edce ne\u017e jisti, a dok\u00e1\u017e\u00ed spolehliv\u011b vyvr\u00e1tit cokoliv, s\u00a0\u010d\u00edm mohou p\u0159ij\u00edt lid\u00e9 mysl\u00edc\u00ed si, \u017ee \u017eijeme na placat\u00e9m disku. Zkr\u00e1tka tomu odporuj\u00ed ve\u0161ker\u00e1 dostupn\u00e1 pozorov\u00e1n\u00ed, kter\u00e1 m\u016f\u017ee prov\u00e9st prakticky ka\u017ed\u00fd z\u00a0n\u00e1s.                                                                                                                                                                                                                                                                                                                                                                                                "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Jak ji\u017e sta\u0159\u00ed \u0158ekov\u00e9 v\u011bd\u011bli, \u017ee je Zem\u011b kulat\u00e1","item":"https:\/\/www.klagip.cz\/jak-jiz-stari-rekove-vedeli-ze-je-zeme-kulata\/#breadcrumbitem"}]}]