Making a metal teaspoon that melts in a cup of tea

In this episode of Periodic Videos, professor Sir Martyn Poliakoff from the School of Chemistry at The University of Nottingham describes the process of making a spoon from an alloy that melts in a cup of hot tea. The alloy is called Field's Alloy and it has a melting temperature of 62 C (144 F). It was named after its inventor, Simon Quellen Field of SciToys and is made from bismuth, lead, and tin. Here's Simon's article about the alloy.