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10 Things You Didn't Know About...
Iain Stewart reveals some surprising facts about natural phenomena.
10 Things You Didn't Know About... Episodes
Avalanches
Iain Stewart reveals ten remarkable stories about avalanches, including how the deadliest one killed 18,000 people in three minutes and why another solved an aviation mystery.
01-06-2014
BBC 4
Earthquakes
Iain Stewart reveals the stories and science behind some of the world's most dramatic earthquakes, including how 1960s Cold War spying gave scientists a clue to understanding them.
31-05-2014
BBC 4