Adam Walton and John Rutledge explore the science behind Roald Dahl's children's stories, from the number of balloons it takes to lift Mrs Twit to the dream jars of the BFG.
Discover 11,128,835 listings and 280,389 playable programmes from the BBC
Adam Walton and John Rutledge explore the science behind Roald Dahl's children's stories, from the number of balloons it takes to lift Mrs Twit to the dream jars of the BFG.
Comprehensive News and Sport, the latest information and the best entertainment for Wales.
