What happens in the gray zone between solid and liquid?
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In the grey zone between solid and liquid. Hence from liquid to solid or solid to liquid the transition has to cross the grey zone.
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- What happens in the gray zone between solid and liquid?
- Solids and liquids are well understood. But some materials act like both a liquid and a solid, making their behaviour hard to predict. Sand is one example.
- A grain of sand is as solid as a rock, but a million grains can flow through a funnel almost like water. And highway traffic can behave in a similar way, flowing freely until it becomes blocked at some bottleneck.
- So a better understanding of this “gray zone” might have important practical applications.
- “People have been asking, under what conditions does the entire system jam up or clog?” says Dr. Kerstin Nordstrom, a physicist at Mount Holyoke College.
- “What are the crucial parameters to avoid clogging?” Weirdly, an obstruction in the flow of traffic can, under certain conditions, actually reduce traffic jams. “It’s very counter intuitive,” she says.
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