Recent Articles

Biological Physics

Viewpoint: Putting Bounds on Biochemical Noise

Biochemical networks are often poorly characterized, but researchers can still derive limits on the level of the random variations or noise in different network components. Read More »

Interdisciplinary Physics

Focus: Sensing Delays Control Robot Swarming

A robot group clusters together or disperses based on each robot’s reaction time for sensing light, a finding useful for search-and-rescue missions.   Read More »

Cosmology

Synopsis: A Little Empty Inside

A new model has allowed researchers to test a theory for why the centers of dark matter halos are less dense than expected. Read More »

FEATURE

Q&A: Physics of the Animal World

Inspired by snakes, mollusks, and other creatures in the wild, mechanical engineer Anette Hosoi never runs out of new ideas for her research. Read More »

Atomic and Molecular Physics

Viewpoint: Journey from Classical to Quantum in Two Dimensions

Two separate groups have extracted the thermodynamic equation of state for a two-dimensional gas of fermionic atoms, revealing its peculiar quantum features. Read More »

Quantum Physics

Synopsis: Tiny Oscillator Works as Photon Changing Room

A new device converts the frequency of a photon using the vibrations in a mechanical oscillator. Read More »

Cosmology

Viewpoint: Some Assembly Required

The clumping of galaxies and galaxy clusters has a subtle dependence on their assembly history—a predicted effect that has now been detected. Read More »

Complex Systems

Focus: Wikipedia Articles Separate into Four Categories

A study of the entire editing history of English Wikipedia shows that the articles cluster into four categories based on how frequently and how aggressively they are edited. Read More »

Fluid Dynamics

Synopsis: Racing to the Bottom

A concentrated suspension of particles can fall through a fluid faster than a single particle. Read More »

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