Home > News and media > Video and audio > Channels > Public lectures and events > Public lectures and events: media player

How to contact us

For technical and editorial queries, please use:


To contribute video and audio content, please use:


For queries about forthcoming events, please see the public events website.

Public lectures and events: media player

Loading the player...

Download : Audio

Speaker(s): Dr Hasok Chang
Chair: Professor John Worrall

Recorded on 18 April 2007 at Hong Kong Theatre, Clement House

This lecture will argue that examining what seems to be a very straightforward question - what is temperature and how can we measure it? - reveals surprising insights into the nature of science and of scientific authority.

Event posting