5 Season
30 Episode
Think of a Number - Season 1 Episode 3
This week Johnny looks at family trees, works out how to get rid of a boomerang, puts nylon in an endless spin and turns a fossil back into a dinosaur with the aid of an element that never forgets. Meanwhile - Think of a Number - a half is a third of it - what's the number ?
- Year : 1984
- Country : United Kingdom
- Genre : Family, Kids
- Studio : BBC One
- Keyword :
- Director :
- Cast : Johnny Ball
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