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.

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Copyright or Author: Mark Frauenfelder
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Source Link: https://boingboing.net/2018/05/17/making-a-metal-teaspoon-that-m.html

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