In the latest episode, Bang goes the Theory puts science to the test. Liz visits the volcano that brought Britain to a standstill, and examines its aftermath and the likelihood of a re-occurrence. Dallas blows the budget in Vegas to explain why people are so bad at predicting probabilities. Jem borrows a solar furnace in France to demonstrate the awesome power of the sun.

The programme is co-produced with the Open University. For more ways to put science to the test, go to www.bbc.co.uk/bang and follow the links to The Open University. Show less