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4/5 Prof Iain Stewart explores stem cell technology at the CRM in Edinburgh.
3/5 Prof Stewart visits Rothamsted Research, the world's oldest agricultural research centre.
2/5 Prof Iain Stewart is amazed how nano materials may revolutionise computers and solar power
1/5 Prof Iain Stewart explores genetic approaches to the treatment and prevention of cancer.
5/5 Professor Iain Stewart visits the UK's home of nuclear science in Cumbria.