In this edition of The Naked Scientists, we go behind the scenes at the National Physical Laboratory as it celebrates 125 years at the forefront of science... Like this podcast? Please help us by <a href="https://www.thenakedscientists.com/donate">supporting the Naked Scientists</a>

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The Naked Scientists flagship science show brings you a lighthearted look at the latest scientific breakthroughs, interviews with the world's top scientists, answers to your science questions and science experiments to try at home.