Artificial leaves made from aluminium could keep windows frost-free

By Leah Crane

We could ditch antifreeze by copying a leaf’s veiny structureStephen HerbTaking a leaf out of plants’ book could help us prevent frost on aeroplanes and car windows, and even allow us to ditch antifreeze.
Kyoo-Chul Park at Northwestern University in Illinois and his colleagues devised a way to prevent frost by mimicking the veins of leaves. “I was walking around and I was fascinated by the beautiful frost pattern on fallen leaves,” says Park. “I was wondering why we see that kind of frost pattern, rather than just 100 per cent coverage of frost.”
The pattern is …

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