We're at the UK's National Nuclear Laboratory (Sellafield) for a look at some Americium. It is used in smoke detectors but could also be a key power-source for the future of space travel. With thanks to the National Nuclear Laboratory, especially Mark Sarsfield. http://www.nnl.co.uk/ More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/ Brady's other channels include: null (Physics and astronomy) null (Numbers and maths) null (Space stuff) null (Science and behind the scenes) null (Food science) null (Big science facilities) null (Favourite scientists)