Episode details
Available for over a year
The very strange number that reveals how long a circumference of a circle is in terms of its radius. But how did it end up being called "pi"?
Programme WebsiteUse Ä¢¹½¶ÌÊÓƵ.com or the new Ä¢¹½¶ÌÊÓƵ App to listen to Ä¢¹½¶ÌÊÓƵ podcasts, Radio 4 and the World Service outside the UK.
Available for over a year
The very strange number that reveals how long a circumference of a circle is in terms of its radius. But how did it end up being called "pi"?
Programme Website