Dear Friend,
Every morning last week, I awoke to thick frost across the yard. Where I live in California, frost is a welcomed signal for a new season. But in many places across the United States, winter storms have devastatingly taken lives. As we leave the house in these conditions, icy roads and airplane wings quickly get frightening. For the last 40+ years, the answer has been chemical anti-ice agents, but they seep into the ground, contaminate our water supply, and make their way into rivers and lakes, toxifying fish, aquatic bugs, and amphibians.
There has to be another way to address this problem.
In Montana, a group of middle schoolers created a biomimetic solution while participating in our Youth Design Challenge. Looking to AskNature.org for inspiration, Team Biosurfaces learned from mint leaf surfaces, whose tall peaks and valleys have angles in-between to stop ice formation. Going even further, a bumpy surface design emulated from the hydrophobic Cicada wings helps prevent frost from building up. Safer surfaces to avoid unintended consequences from an already complicated issue means less, or no, chemical deicer. Imagine when we all learn to take our design cues from the natural world.
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