Uploaded August 2026 | Updated September 2026, 2 weeks ago

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Answers to all of the mathematical questions from Pokémon, Lord of the Rings, Harry Potter, Star Wars, Marcel and more.

Pre order now and receive a signed Pokémon card: https://backstory.london/products/pre-order-how-many-pikachus-would-it-take-to-power-a-lightbulb-by-tom-crawford-signed-personalised-with-pi-keyring-and-pokemon-trading-card-card-pi-keyring-with

Produced by Dr Tom Crawford at the University of Oxford. Tom is Public Engagement Lead at Oxford University Lifelong Learning: conted.ox.ac.uk/profiles/tom-crawford

For more maths content check out Tom's website tomrocksmaths.com

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