Think of a Number

Season 4 Episode 5: Dangerous Curves

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.

Genre:

Family, Kids

Seasons:

5

Episodes:

30

Cast:

Johnny Ball

Quality:

HD

Duration:

30 min

First Air:

1978

Rating:

7.7