Category Archives: Physics Today

Cold, supersaturated urban air could be accelerating pollutant particle growth

A new experiment suggests that ammonium nitrate particles nucleate and quickly grow in winter conditions.  Continue reading

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Smog-forming particles may grow quickly in supersaturated urban air

Ammonium nitrate particles nucleate and grow in winter-like conditions, according to a new experiment. Continue reading

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Seafloor avalanches travel fast and far

Acoustic measurements of sediment concentration quantify the wide-reaching influence of turbidity currents.  Continue reading

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Pressure alters rock magnetization

A rock buried in Earth’s crust or a meteorite compressed on impact may end up with increased magnetization.  Continue reading

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Food residues help date ancient pottery

Radiocarbon dating of carefully extracted fatty-acid compounds could become a robust archaeological tool. Continue reading

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Localized electric field manipulates a nuclear spin

The atom-level control could provide the precision required for some quantum computing applications. Continue reading

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The forces that burst bubbles

The energy balance between shell, liquid, and impact velocity determines when an elastic capsule will deform and break.  Continue reading

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Localized electric field manipulates a nuclear spin

Nuclear electric resonance provides the atom-level control required for some quantum computing applications.  Continue reading

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Rare nuclear transition provides evidence for stellar explosion mechanism

With its higher-than-expected propensity to capture electrons, neon could drive some stars’ thermonuclear death.  Continue reading

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A broad acoustic bandwidth helps listeners understand fragmented speech

High-frequency audibility is critical for understanding speech in crowded social settings. Continue reading

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