Message from Luis - Periodic Table of Videos - Portuguese (2012x14)
Exibido em:: Mar 01, 2012
Click: http://www.periodicvideos.com/captions/ (includes info about English and other language captions too)
More chemistry at http://www.periodicvideos.com/
Follow us on Facebook at http://www.facebook.com/periodicvideos
And on Twitter at http://twitter.com/periodicvideos
Periodic Videos films are by video journalist Brady Haran
