Jem Stansfield attempts to defeat the US Navy's latest weapon with no more than some foam and a crash helmet.

Zoologist Liz Bonnin gets in contact with her frog brain, Dallas Campbell re-programmes his caveman brain to become a thrill-seeker, and Dr Yan Wong gets his thrills from inhaling sulphur hexafluoride.

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