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Big Manny and Maddie Moate

The Big Science Event

Hay Festival 2025, 

Buckle in for a mind-blowing science ride with TikTok superstar Big Manny and children’s TV presenter Maddie Moate. Big Manny reveals all about physics, from sound waves to circuits and mad magnetism to fantastic friction. Want to bend water or build an electroscope? He’s your man. Maddie Moate takes a look inside everyday objects and marvellous machines to see how they work, from microwaves to smart speakers to supermarket checkouts, and explains why roundabouts make you dizzy!

Big Manny is a science-first content creator with a master’s degree in biomedical science. He has a combined following of 2.9 million on TikTok and Instagram. His latest book is Science is Lit: Awesome Electricity and Mad Magnets.

Maddie Moate is a BAFTA-winning presenter, star of CBeebies’ Do You Know? and non-fiction children’s author. Her new book is How Does it Work? Explore Machines and Objects, from Fridges to Fire Engines!

6+ years