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Roald Dahl Day is celebrated each year on 13 September. Dahl gave us much-loved children’s books like Matilda, The BFG and Charlie and the Chocolate Factory, which have captivated kids for generations.

Dahl is also a controversial figure, and made anti-semitic remarks that his family have since apologised for. We explore the separation of art and artist, and go looking for the science hidden in Dahl’s fantastical stories.

We find out about the scientists brewing up chocolate – not in a factory, but in a laboratory. And remember how the BFG sent ‘golden dreams’ into kids’ bedrooms? We hear how anaesthetists are ensuring that patients enjoy good dreams while sedated. And remember Bruce Bogtrotter, the much-loved side character in Matilda who famously scoffed a gigantic chocolate cake? Inspired by his story, we decided to chew over the science behind eating competitions with Professor James Smoliga from Tufts University School of Medicine.

Presenter: Marnie Chesterton, Tristan Ahtone and Sandy Ong
Producer: Alice Lipscombe-Southwell, Sophie Ormiston and Debbie Kilbride