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Michael Bywater
Michael Bywater is an author, broadcaster and journalist. His polymathic and enquiring mind once famously inspired the eponymous detective in Douglas Adams' Dirk Gently series.
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Helen Castor
Dr Helen Castor is a broadcaster, author and historian of medieval and Tudor England. She is a Fellow of Sidney Sussex College, Cambridge.
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Jim al-Khalili
Professor Jim al-Khalili OBE is a physicist and award-winning science communicator. He presents the weekly BBC Radio 4 show The Life Scientific.
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