The team takes on more popular science. Liz Bonnin investigates recent research into the magnetic qualities of cows, while Dallas Campbell puts psychological priming to the test. Dr Yan Wong demonstrates why rockets work in space with the help of an underwater firework, and Jem Stansfield tries to put the programme in the space race.

The programme is co-produced with The Open University.

For more ways to put science to the test, go to the Hands-on Science area at www.bbc.co.uk/bang for details of our free roadshow touring the UK and activities that you can try at home. Show less