The problem of infinite Pi(e)

On every street corner, at every bus stop, in every public toilet the message is clear: this city is not built for women. Along with journalist Chhavi Sachdev, Dr Ella Hubber explores how urban design often fails to reflect the realities of women’s lives. They unpack issues like ...  Show more

Safety equipment is often designed around an “average” male body and Dr Ella Hubber wants to understand the consequences this has for women. Alongside journalist Candice Bailey and expert voices, we hear how healthcare workers are forced to adapt to PPE never made for them and ho ...  Show more

Melvyn Bragg and guests discuss the history of the most detailed number in nature. In the Bible's description of Solomon's temple it comes out as three, Archimedes calculated it to the equivalent of 14 decimal places and today's super computers have defined it with an extraordina ...  Show more

Pi itself is pretty ridiculous. This number -- the ratio of the circumference of any circle to the diameter of that circle -- appears to continue into infinity, with no predictable pattern. In today's episode, Ben, Noel and Max explore something even more ridiculous: that time in ...  Show more

It is once again Pi Day (March 14—which is like the first digits of pi: 3 and 14). Before getting into this year's celebration of pi, let me just summarize some of the most important things about this awesome number. Outside the US, Pi Day should probably be July 22 (22/7)—this f ...  Show more

After the comic malfunctions of a self-driving car, which drove its passenger/prisoner in endless circles, Unexpected Elements rounds its attention on the humble circle. Explore how one man calculated the circumference of the Earth 2,000 years before GPS was invented, then be spe ...  Show more