A Slo-Mo Water Show, Care of Superhydrophobia

Water-repelling coatings make for a liquid ballet.

Shirin Borthwick
January 09, 2014

Water repulsion is all the rage at General Electric right now. New hydrophobic, durable coatings that repel liquid could increase energy efficiency across all kinds of machine-based industries. While this is a great advance for technology, a pleasant offshoot is beauty: cue mesmerising slo-mo video of glittering droplets, artfully scattering and dancing in unison.

To develop a superhydrophobic coating, GE's chemists looked to nature's own superhydrophobicity and specifically the "lotus effect" — the way raindrops stay intact and roll off lotus leaves without adhering or soaking in, thanks to nanoscopic hairs on the leaf surface.

If you could harness this water-repelling power of the lotus, what would you do with it? GE's wind turbines and other machinery adversely affected by ice and moisture build-up will benefit from the coating, and a path ahead is also clear for self-cleaning and anti-fouling materials.

Below, watch as the cute, scruffy Slow Mo Guys wear lab coats and utter sweet nothings with their British accents, all while applying macro-lens scrutiny to liquids bouncing off a superhydrophobic coating. This bouncing (or "splooshing" as the guys eloquently put it) creates tumbling, flower-like formations that expand and retract. Marvel as they mess around with food dye, back-lighting and ferrous liquid. It's not unlike the famous Sony Bravia bouncy ball ad, enhanced by an emotional synth soundtrack and the shape-shifting elasticity of water.

Via Gizmodo.

Published on January 09, 2014 by Shirin Borthwick
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