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Category Archives: APS Physics
Cubes Keep Their Distance
Cubes suspended in a liquid are less likely than spheres to form clusters and fall out of solution. Read more in APS Physics…
Counting All the Antistars in the Sky
Analyzing gamma-ray sources leads to an upper limit on how many antimatter stars could exist in the Milky Way. Read more in APS Physics…
Laser-Cooled Atoms and Molecules Collide in a Trap
An experiment shows the circumstances under which ultracold atoms are quick to kick molecules out of a trap, providing clues for how to use atoms as a refrigerant for molecules. Continue reading
Shape-Shifting Proteins Follow Diffusion Rules
How quickly a protein diffuses in a liquid depends directly on its radius, which changes as the protein’s conformation fluctuates. Continue reading
Loopy Pipe Network Converts AC to DC
A simple network of pipes based on the structures of a bird’s lung transforms back-and-forth flow into one-way flow. Continue reading
At-Home Experiment Exposes Gel Cracks
Kept out of the lab by COVID-19, an undergraduate student has performed experiments in his living room, revealing a mechanism for fracture elongation in soft materials. Continue reading
The Entangled Dance of Atom Beams
Entangled pairs of ultracold atoms interfere in a double waveguide. Continue reading
Femtosecond Probe Catches Electrons Relaxing
Pump-probe experiments measure the time it takes for electrons to thermalize and cool after photoexcitation. Continue reading
A Vortex in an Egg Cell
During a fruit-fly egg cell’s early development, its internal fluid begins to swirl in a vortex—a transition caused by the coordinated behavior of elastic filaments in the cell. Continue reading
Ultrabright Photons for Single-Chip Quantum Devices
A microcavity-based source of photon pairs achieves one hundred times the efficiency of state-of-the-art devices. Read more in APS Physics…
