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Imagined WorldsSeries 2Episodes Episode guide
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Fred Hoyle
5/5Professor Sir Fred Hoyle explains his theories of cosmology.
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Sydney Brenner
4/5Sydney Brenner talks about his work in the field of molecular biology.
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Roger Penrose
3/5Roger Penrose explains 'twistor space', his theory of physical geometry.
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Patrick Wall
2/5How Patrick Wall's work on pain perception has led to new treatment of pain.
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Tom Bower
1/5Child psychologist Tom Bower explores the perceptual capabilities of young children.
