tl;dr, "A central jet emerges nourished by the incoming water from the walls ... an effective force is exerted downward on the bottom ... the bounce after the i

tl;dr, "A central jet emerges nourished by the incoming water from the walls ... an effective force is exerted downward on the bottom ... the bounce after the impact depends dramatically on how much water is available to descend and hence ... on the initial rotational frequency", from the PRL letter: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.130.244001 https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.13... ArXiV preprint: https://arxiv.org/abs/2212.03971 https://arxiv.org/abs/2212.03971