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Fluid dynamics

Lord Kelvin's vortex rings


Linking two smoke rings or tying a single ring into a knot is no easy feat. Such topological vortices are now created in water with the aid of specially printed hydrofoils.

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Correspondence to Daniel P. Lathrop.

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Lathrop, D., Brawn-Cinani, B. Lord Kelvin's vortex rings. Nature Phys 9, 207–208 (2013).

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