Scientists Make Progress Understanding How Ice Forms at the Molecular Level
Researchers at the European X-ray Free Electron Laser Facility are using cutting-edge technology to observe the freezing process at the molecular level, addressing a 150-year-old scientific puzzle where theoretical predictions have been off by up to 20 orders of magnitude. Understanding ice formation is important not only for fundamental physics but also for improving climate models and understanding planetary formation. Better insights into freezing could help predict cloud behavior and refine forecasts of global warming.
Scientists have long struggled to explain how liquids freeze into solids, with theoretical models often producing wildly inaccurate predictions compared to experimental results. Using the European XFEL, a powerful X-ray laser facility near Hamburg, Germany, researchers are now capturing the first few microseconds of the freezing process to understand the mechanisms at work. The research addresses both homogeneous nucleation (freezing of pure liquids) and heterogeneous nucleation (freezing on impurities), phenomena that have roots in 18th and 19th-century physics but remain incompletely understood. Improved understanding of freezing has practical implications beyond basic science, including better models of ice formation in clouds, more accurate climate change predictions, and insights into planetary geology. Early findings suggest that disorder plays a larger role in freezing than previously thought, helping to close the gap between theory and experiment.
What different sources said
- Nature NewsCenter
How ice forms is a mystery — now scientists are cracking the case
- NatureCenter
How ice forms is a mystery — now scientists are cracking the case
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