Explained: Hydrophobic and hydrophilic

Sometimes water spreads evenly when it hits a surface; sometimes it beads into tiny droplets. While people have noticed these differences since ancient times, a better understanding of these properties, and new ways of controlling ...

Butterfly wings inspire new high-tech surfaces

A South American butterfly flapped its wings, and caused a flurry of nanotechnology research to happen in Ohio. Researchers here have taken a new look at butterfly wings and rice leaves, and learned things about their microscopic ...

Study reveals unique physical, chemical properties of cicada wings

Biological structures sometimes have unique features that engineers would like to copy. For example, many types of insect wings shed water, kill microbes, reflect light in unusual ways and are self-cleaning. While researchers ...

Titanium micro-spikes skewer resistant superbugs

A new study suggests rough surfaces inspired by the bacteria-killing spikes on insect wings may be more effective at combating drug-resistant superbugs, including fungus, than previously understood.

Getting ice, frost off planes problematic

The buildup of ice on surfaces can cause problems in many situations: On airplane wings or on their engine turbine blades, ice can both add weight and interfere with a wing’s lift, which can make it impossible to take ...

Scientists mimic fireflies to make brighter LEDs

The nighttime twinkling of fireflies has inspired scientists to modify a light-emitting diode (LED) so it is more than one and a half times as efficient as the original. Researchers from Belgium, France, and Canada studied ...

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