Iceberg in Earl Grey (hot!) —Li Shen, Imperial College London

The thin film which forms on the surface of a cup of Earl Grey tea breaks up in a similar fashion to icebergs in the sea. The thin-film pattern formation follows a Cahn-Hilliard-like coarsening process until the breaking up process is complete. This image was taken in the middle of the coarsening process, only colour has been adjusted for creative effect to mimic an actual iceberg.