Dyed water injected into corn syrup in a Hele-Shaw cell results in the Saffman-Taylor fingering instability.

By Felix Levy, Blake Buchanan, Aaron Lieberman, Ross Pitcairn, Gabriel Paez for Spring 2013 Team First.
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Dyed water injected into corn syrup in a Hele-Shaw cell results in the Saffman-Taylor fingering instability.

Dyed water injected into corn syrup in a Hele-Shaw cell results in the Saffman-Taylor fingering instability.

Lifting an aluminum block during wet sanding reveals dendritic fingering, caused by the Saffman-Taylor instability. Various oil concentrations in the slurry are shown.

Dyed water injected into corn syrup in a Hele-Shaw cell results in the Saffman-Taylor fingering instability.

Total internal reflection in a water stream traps three lasers.

Total internal reflection in a water stream traps three lasers. As the water level in the supply tank dropped, beams were eliminated, changing the color in the catch bucket.

Total internal reflection in a water stream traps three lasers.

Total internal reflection in a water stream traps three lasers.

Total internal reflection in a water stream traps three lasers.

Ferrofluid forms spikes on a magnetized steel bolt.