Test Tube regular Dave Scott is back - this time doing some work at one of the UK's top science facilities... the Diamond Synchrotron. Test Tube by video journalist Brady Haran for the University of Nottingham. More at http://www.test-tube.org.uk/ Brady's other channels include: null (Chemistry stuff) null (Physics and astronomy) null (Numbers and maths) null (Space stuff) null (Food science) null (Big science facilities) null (Favourite scientists) null (Academic look at the Bible) null (Modern language and culture)