Up close with some big samples of real Iridium. Our thanks to Johnson Matthey. See all the elements at http://bit.ly/118elements

Naming Iridium:    • Iridium and Osmium Discovery - Period...  

Gold Vault:    • Gold Bullion Vault - Periodic Table o...  

More chemistry at http://www.periodicvideos.com/
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From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry...

Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/

Brady's other channels include:
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   / bibledex   (Academic look at the Bible)
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   / psyfile   (Psychology stuff)