or How to See the Beauty of Maths.
The Royal Institution Annual Christmas Lectures for Young People by Professor Christopher Zeeman, Professor of Mathematics, Warwick University.
The last of six programmes.
In which it is revealed why it is the last straw that breaks the camel's back. Catastrophes may be sudden, but they can be explained with the aid of, among other things, swallowtails and butterflies. And it turns out that buckling beams and political parties have a lot in common.