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A Bigger Bang

Duration: 01:22

The explosive effect of placing the element sodium in water is school chemistry lab classic, but why must teachers always use such a small piece?
Dr Peter Wothers finds out by using a much bigger piece of sodium, and a much bigger tank of water.

Available since: Tue 8 Jan 2013

This clip is from

Royal Institution Christmas Lectures 2012: The Modern Alchemist, Water: The Fountain of Youth

2/3 Peter Wothers finds out whether the elements lurking in the water can restore his youth.

First broadcast: 27 Dec 2012

Image for Water: The Fountain of Youth Not currently available on BBC iPlayer

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