Did You Know it » copper http://www.didyouknow.it Did You Know it blog - funny, interesting, useful and amazing facts and did-you-know's about people, animals, science, history, world, nature, internet, arts, religion and many more. Wed, 20 Jul 2011 20:11:52 +0000 en hourly 1 http://wordpress.org/?v=3.3 Do intelligent people have more zinc and copper in their hair? http://www.didyouknow.it/people/intelligent-poeple-have-more-zinc-and-cpper-in-th/ http://www.didyouknow.it/people/intelligent-poeple-have-more-zinc-and-cpper-in-th/#comments Thu, 27 Nov 2008 21:07:35 +0000 anulyok http://www.didyouknow.it/?p=497 http://www.didyouknow.it/people/intelligent-poeple-have-more-zinc-and-cpper-in-th/feed/ 0