Magnets below a dish of ferrofluid induce the normal field instability.

By William Olson, Gamal Elbialy, Christopher O’Brien, and Ian Macfarlane for Fall 2015 Team Third.
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Magnets below a dish of ferrofluid induce the normal field instability.

Magnets below a dish of ferrofluid induce the normal field instability.

Glow stick fluid illuminates ferrofluid while magnets create the normal field instability.

Glow stick fluid illuminates ferrofluid while magnets create the normal field instability.

Gold acrylic paint disrupts the normal field instability generated in ferrofluid above four disc magnets.

Molasses drips off an underwater transverse cylinder.

A stream of molasses falling through water piles up on a transparent transverse cylinder.

A cylinder submerged in water is coated with molasses, viewed from above.

Molasses streams off an underwater upright cylinder, illustrating long spikes formed by the Rayleigh Taylor instability at low Re and moderate Atwood number.

Melted wax poured into cold water freezes immediately.