About this programme

12/13. Ortis Deley and Suzi Perry visit Thorpe Park, Alton Towers and Drayton Manor Park to find the best rollercoaster in the UK, before trying to build a simulator of one of the rides. Ortis discovers biometric technology from the US that can identify people from 50 paces, Jon Bentley tests lawnmowers and Jason Bradbury gives a rundown of the top five USB-powered gadgets.