Category Archives: APS Physics

Massive Star Formation DisplaysSelf-Control

New observations of a stellar nursery highlight a self-regulation mechanism that appears to resolve discrepancies between simulated and observed efficiencies of star formation. Continue reading

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A Salt-Based Laser Color Converter

Artificial salts that are liquid at room temperature can be used to efficiently tune the wavelength of a laser source. Continue reading

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A Nonlinear Cavity Cools a Cantilever

Photons in a nonlinear cavity perform “negative” work on a mechanical oscillator, cooling it toward its ground state. Continue reading

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The Sounds of Atoms

Transforming the spectral lines of each element into a musical tone provides a fun tool for teasing out patterns in the electronic structures of atoms. Continue reading

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How Freshwater Mixes in a Winter Lake

An influx of warmer water mixing with a colder ambient volume can create a dense parcel that drives bottom currents and determines the resulting circulation patterns. Continue reading

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Dark Matter Goes Down to the Wire

A superconducting nanowire detector places new bounds on how a hypothetical lightweight dark matter particle interacts with electrons. Continue reading

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Foot Functionality Elucidated

When humans walk, our feet act as levers rather than landing pads as previously thought. Continue reading

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Physics in Confined Spaces

Erin Flowers develops laboratory courses for incarcerated men and women, an endeavor that she says is both challenging and rewarding. Read more in APS Physics…

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Dark Matter Could Cause Excess Optical Background

Axions that decay into photons could account for visible light that exceeds what’s expected to come from all known galaxies. Continue reading

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A Dense, Cold Gas of EuropiumAtoms

A Bose-Einstein condensate of europium atoms provides a new experimental platform for studying quantum spin interactions. Read more at APS Physics…

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