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Tempest in a teacup: UChicago physicists make breakthrough in creating turbulence
https://news.uchicago.edu/story/tempest-teacup-uchicago-physicists-make-breakthrough-creating-turbulence
Scientists create contained ball of turbulence in a tank that could help answer longstanding questions
University of Chicago scientists pioneered a way to create a contained “ball” of turbulence in a tank of water, which has never been done before.
[...] They use a ring of jets to blow loops until an isolated “ball” of turbulence forms and lingers.