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
Bang Goes The Theory returns to BBC One England and Wales on April 18th at 7.30pm, and in Scotland and Northern Ireland on April 22nd at 8:30pm. Full schedule and iPlayer links are on bbc.co.uk.
In the latest episode of the science series, Liz looks at the controversial science of genetically modified crops in Hawaii, Dallas tries to remedy Jem's dust allergy by making him eat worms, and Dr Yan tries to shatter a glass by playing the violin.