Author Archives: rberkowitz

Cold, supersaturated urban air could be accelerating pollutant particle growth

Posted on July 2, 2020 by rberkowitz

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

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Ion Recoil from Photon Beam Observed

Posted on June 22, 2020 by rberkowitz

Experiments confirm that photonionized molecules get a backward kick, as predicted by theory.  Continue reading →

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Smog-forming particles may grow quickly in supersaturated urban air

Posted on June 18, 2020 by rberkowitz

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

Posted on June 3, 2020 by rberkowitz

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

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Unjammed Emulsions Collapse to Liquids

Posted on May 27, 2020 by rberkowitz

An emulsion’s rigidity disappears when the droplets’ random thermal motion overcomes the confining pressure that binds them.  Continue reading →

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Efficient Detection of Microwave Photons

Posted on May 18, 2020 by rberkowitz

A new single-photon detector minimizes false positives by ensuring that a qubit switches to its excited state if and only if a photon enters a microwave resonator.  Continue reading →

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Pressure alters rock magnetization

Posted on May 18, 2020 by rberkowitz

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

Posted on May 6, 2020 by rberkowitz

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

Posted on May 2, 2020 by rberkowitz

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

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Novel Coronavirus Prompts Computer Sharing

Posted on April 24, 2020 by rberkowitz

A consortium of high-performance computing centers helps fast-track COVID-19 vaccine, drug, and epidemiology calculations.  Continue reading →

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