Apprentices' scrapheap challenge
Culham apprentices went back in time to recreate a medieval siege machine for an Oxfordshire Science Festival event.

The team from CCFE competed for Oxford's 'Siege Engineer 2010' title at Cokethorpe School, building a trebuchet capable of launching missiles 50 metres (pictured)

Deputy Apprentice Training Manager Steve Hall explained: 'The contest was great fun and a chance for some of our young engineers to put their skills to the test. It was a real challenge for them to figure out how these machines would have worked, although we used balloons instead of boulders as ammunition!'