The paper “A new physically realisable internal 1:1 resonance in the coupled penulum-slosh system“, co-authored by Hamid Alemi Ardakani (Exeter), Tom Bridges, and Matt Turner, has been accepted for publication in the European Journal of Mechanics B/Fluids. The image below shows a schematic of the coupled pendulum-slosh problem studied in the paper. Using a variational principle, and a range of analytical and numerical techniques, the coupled problem of fluid sloshing in a container rotating about a fixed point in the plane, is analysed. New resonances between the fluid and body motion and zones of instability are identified for parameter values that have relevance to experiments.