Take it further
Got a passion for science? Find out about studying science at The Open University.
Play with DNA - on your fridge
Challenge your ears
Have you tried: The Shepard Tone illusion?
Bang on TV
The last Bang Goes The Theory of this series is on BBC One England and Wales on May 2nd at 7.30pm, and in Northern Ireland on May 6th at 8:30pm. Full schedule and iPlayer links are on bbc.co.uk.