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Swimming in Flatsea

Some of the simplest questions are the hardest to answer. Why flags flap is a long-standing puzzle that becomes easier to solve in a two-dimensional world.

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Figure 1: Making flat waves.

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Correspondence to Greg Huber.

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Huber, G. Swimming in Flatsea. Nature 408, 777–778 (2000). https://doi.org/10.1038/35048643

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