John Lloyd and Noel Fielding welcome author Jenny Colgan, historian Dr Janina Ramirez and writer Dr Peter Frankopan. From 2016.

This week, the Professor of Ignorance John Lloyd and his curator Noel Fielding welcome:

* Dr Janina Ramirez, art historian, author and TV presenter. Janina is Course Director for the Undergraduate Certificate in History of Art at the University of Oxford.

* Peter Frankopan, Senior Research Fellow at Worcester College, Oxford, Director of the Oxford Centre for Byzantine Research and author.

* Jenny Colgan, a novelist who writes romantic comedies, sci-fi and children's books.

The Museum's Guest Committee appreciate a medieval polymath nun who created her own language; a collection of food additives from the 1970s; and an infinite number of colours that exist only in the mind and all with the same name.

Researchers: Mike Turner and Anne Miller of QI

Producers: Richard Turner and James Harkin

A BBC Studios production for BBC Radio 4 first broadcast in August 2016.