Seamus Garvey puts a piston in our scientific time capsule. Capsule playlist: http://bit.ly/nottscapsule More at http://www.test-tube.org.uk/capsule Seamus is a professor of dynamics at the University of Nottingham, in the School of Engineering. See more videos about his work at    • Seamus Garvey and Energy Bags   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/