Professor of Ignorance John Lloyd and his curator Bridget Christie welcome:

* Comedian Ahir Shah
* Historian Dr Fern Riddell
* Physicist Professor Bobby Acharya

The Museum's Guest Committee donate nicotine addiction, an 18th century sex and contraception guide and an intergalactic space observatory.

Researchers: Mike Turner, Mike Shepherd and Emily Jupitus of QI.

Producers: Victoria Lloyd and Anne Miller.

A BBC Studios production for BBC Radio 4, first broadcast in October 2019. Show less