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Professor Davis explains the legendary story of Mendeleev's game of cards, in which the famous scientist played solitaire with the elements to create the first ever periodic table.
Professor Davis answers a subscriber question: Can elements be molecules? The distinctions among the terms 'atom', 'element' and 'molecule' can sometimes be confusing to the uninitiated. In this short video, Professor Davis clears things up.
Professor Davis explains the role of glycerine in hand sanitizer formulations.
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