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That’s why I love chemistry

Duration: 01:27

Prof Brian Cox demonstrates why we rarely see chemical elements such as calcium and sodium in their raw form; they are extremely reactive, as he discovers carrying out an experiment with sodium.

Available since: Thu 10 Mar 2011


Brian Cox

This clip is from

Wonders of the Universe Stardust

2/4 What are we and where do we come from? Professor Brian Cox finds out.

First broadcast: 13 Mar 2011

Image for Stardust Not currently available on BBC iPlayer

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