How did Mary Somerville get on the Scottish 10 Pound note?

Who is Mary Somerville? If you immediately thought 'she was a scientist!' you would be right! But she is so much more than that! Somerville college right here in Oxford was named in her honour.

In this episode of the Big Questions podcast we are asking: How did Mary Somerville get on the Scottish 10 Pound note? To find out we visited Brigitte Stenhouse who is doing her PhD at the Open University on the Mathematics of Mary Somerville.