The surprising history of tinsel

WASHINGTON, Dec. 16, 2014 -- It's been a holiday decoration staple for decades, and it turns out that silver stuff hanging from your tree has quite a storied past. Tinsel has been made out of everything from real silver, to lead to other dangerously flammable materials. This week's Speaking of Chemistry decks your halls with the history of tinsel. Check it out at http://youtu.be/fql3aCuu1l0.

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