Hands-on science: Lightspeed maths resources

Putting science and technology to the test

BBC One

Ask Yan a question

Dr Yan invites you to ask him a science question.

Sorry, but we've had so many great questions that this feature is closed, for now.

Roadshow

Bang Goes the Theory roadshow map

Bang LIVE is back and kicking off the year in London at the Big Bang Fair.

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