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Think of a Number

Season 4 Episode 5: Dangerous Curves

You'll discover the secrets of drawing hyperbolas and parabolas, and witness a mind-bending illusion that will challenge your perception of reality.

Season 4 Episodes:

Episode 1 Reproduction

1. Reproduction

Aired: Sep 15, 1982

Johnny Ball explores the human body, focusing on the heart's location and the...

Episode 2 What does exactly mean exactly ?

2. What does exactly mean exactly ?

Aired: Sep 22, 1982

Johnny ventures into the realm of measurement, dissecting the intricacies of ...

Episode 3 Musical Numbers

3. Musical Numbers

Aired: Sep 29, 1982

In the next episode, Johnny explores the dynamic world of music, examining ho...

Episode 4 Box Clever

Aired: Oct 6, 1982

Johnny uncovers the astonishing capabilities of the Tardis, a humble-looking ...

Episode 5 Dangerous Curves

5. Dangerous Curves

Aired: Oct 13, 1982

You'll discover the secrets of drawing hyperbolas and parabolas, and witness ...

Episode 6 Gambling

Aired: Oct 20, 1982

The team investigates a fruit machine's fairness, enjoys sweet treats at the ...

Main Cast

Creators

Johnny BallWriter

Info about Think of a Number

Seasons: 5

Current Status: Ended

Network: BBC One

Production Country: United Kingdom

Genres:Family, Documentary