Green Chemist Martyn Poliakoff places a high pressure valve into the time capsule. Capsule playlist: http://bit.ly/nottscapsule More at http://www.test-tube.org.uk/capsule Professor Poliakoff is based at the University of Nottingham. He features in the periodicvideos series of chemistry videos: null This film was shot and edited by James Hennessy. Test Tube is a project by video journalist Brady Haran for the University of Nottingham. More at http://www.test-tube.org.uk/