The map illustrates the diversity of physics research being carried out in the Cavendish Laboratory. There are many overlapping and cognate themes associated with the four Universes – the Extreme, Biological, Quantum and Materials universes. The cross-fertilisation between them results in a diversity of approach and synergies for the analysis of physics problems. Theoretical and computational studies complement many of the experimental activities. The significance of each icon can be found on the Research Group descriptions below and the Group web pages.