10 Things We Didn't Know 100 Years Ago

By Spiral Education 30 Aug 22:23
SciShow science Hank Green education learn 10 Things We Didn't Know 100 Years Ago michael aranda alpha particles neutrons james chadwick dna rosalind franklin maurice wilkins james watson francis crick vitamin c albert szent-gyorgyi hexuronic acid alexander fleming penicillin Cecilia Payne-Gaposchkin tectonic plates charles darwin albert einstein cfc chorofluorocarbons ozone mitochondrial dna montreal protocol gravitational waves LIGO Display all tags
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