News tagged with crystals

NASA image: Night-shining clouds

In the late spring and summer, unusual clouds form high in the atmosphere above the polar regions of the world. As the lower atmosphere warms, the upper atmosphere gets coooler, and ice crystals form on meteor ...

dateJun 22, 2015 in Earth Sciences
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Aperiodic crystals and beyond

Once a contradiction in terms, aperiodic crystals show instead that "long-range order" has never been defined. Whatever it means, decades of intense research have shown it to be more complex and surprising ...

dateJun 17, 2015 in Condensed Matter
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