The story of scientists who believe they can detect when a supertwister - the most powerful of tornadoes - will strike, giving people a chance to flee before it hits. Show more
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The story of scientists who believe they can detect when a supertwister - the most powerful of tornadoes - will strike, giving people a chance to flee before it hits. Show more
BBC One is a TV channel that started broadcasting on the 20th April 1964. It replaced BBC Television.
