5 Season
30 Episode
Think of a Number - Season 4 Episode 5 Dangerous Curves (1984)
Find out how you can draw hyperbolas, parabolas and about the illusion that something is there when it isn't. So this week watch out for things that go with a swing, and for curves there's no place like cone.
- Country : United Kingdom
- Genre : Family, Kids
- Studio : BBC One
- Director :
- Cast : Johnny Ball
