Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Kupfuura: Dzidziso yaNewton yecorpuscular yairatidza kuti chiedza chaizofamba nokukurumidza munharaunda yakasimba, nepo dzidziso yemafungu yaHuygens navamwe yairatidza zvakapesana. Panguva iyoyo, kumhanya kwechiedza kwakanga kusingagoni kuyerwa zvakarurama zvakakwana kuti zvisarudzwe kuti dzidziso ipi yakanga yakarurama. Wokutanga kuita kuyerwa kwakarurama kwakakwana akanga ari Léon Foucault, muna 1850. Zvaakawana zvakatsigira dzidziso yemafungu, uye dzidziso yechinyakare yezvinhu zviduku yakazoguma yarambwa, asi yakazongoonekazve zvishoma muzana remakore rechi20.  Mubvunzo: Mufungo wacho wakanga uri pamusoro pei?
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