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comment by thenewgreen
thenewgreen  ·  4742 days ago  ·  link  ·    ·  parent  ·  post: Perpetual Ocean
About once a week we take our daughter to the Life and Sciences Museum in our town. They have a big ball on a pedestal filled with blue liquid that you can turn. The blue liquid charts clearly defined currents that are meant to teach you about surface currents. It looks remarkably like the visualization in the video.