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The Professor on Viagra - Periodic Table of Videos
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Ytterbium - Periodic Table of Videos
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Niobium (new) - Periodic Table of Videos
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Jay
, 9 years ago
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We get our hands on a pure sample of Sildenafil citrate, known to many as Viagra, and discuss a few properties of this "blockbuster" drug. More chemistry at http://www.periodicvideos.com/