5 Sezon
30 Episod

Think of a Number - Season 4 Episode 5 Episodul 5 (1984)

Name: Think of a Number
Genre: Family, Kids
Released: 08 Feb 1984
Rating: 6.50
Cast: Johnny Ball

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.

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