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Category Archives: APS Physics
Why Humidity Doesn’t Affect Drying Paint
Experiments verify a theory that explains why paint doesn’t dry any faster on a dry day than on a wet day. Continue reading
Solid-State Physicist Turns to Rocks
An archaeology-focused sabbatical prompted semiconductor physicist Kristin Poduska to ask questions about how the environment impacts the chemical and structural properties of natural materials. Continue reading
Posted in APS Physics
Tagged APS Physics, Condensed Matter Physics, Geophysics, Semiconductors
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Tension Remodeling Resolves Tissue Architecture Question
A dynamical tension model captures how cells swap places with their neighbors in epithelial tissues, explaining observed phase transitions and cellular architectures. Continue reading
It’s a Trap—for Lanthanides
Trapping and imaging single dysprosium atoms extends the utility of optical tweezer arrays to electronically complex species, opening the door to new quantum physics studies. Continue reading
Binary Colloids Don’t Flock Together
A homogenous mixture of two self-propelling species first forms a polar vortex and then spontaneously demixes, thanks to a difference in speeds and other competing effects. Continue reading
Earplugs That Block Out All Sounds
A new 3D-printed earplug can absorb physiological sounds made by the body, potentially making it more acoustically comfortable to use than some commercially available earplugs. Continue reading
Intense X Rays Can Free Bound Electrons
Measurements indicate that intense x-ray pulses can change the electronic structure of a material on femtosecond timescales, a finding that could improve imaging of light–matter interactions. Continue reading
How Rotation Drives Magnetic Levitation
A detailed experimental analysis explains the forces by which a spinning magnet can cause another magnet to levitate in midair. Continue reading
Far-Field Flow Forces Attraction
The flow field generated by swimming bacteria drives a long-range attractive force felt by passive objects much larger than the swimmers themselves. Continue reading
Quasiparticles Repel, Then Attract
Resonant excitation of a thin-film semiconductor leads to impurities that attract rather than repel each other, providing a possible tool for manipulating superconductivity. Continue reading
Rachel Berkowitz 