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A Time Standard for the Moon—Thanks to General Relativity

As part of an effort to establish a lunar time standard, researchers have used relativity to calculate time differences between Earth and the Moon. Read More »

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Water Waves Break Up Floating Film

A lab-scale model provides a testing ground for studying the breakup of ice sheets or of other thin solids floating on the surface of a fluid. Read More »

synopsis

Gases Team Up for Enhanced Coherence

Magnetic feedback causes two atomic gases to guide each other’s spins into long-lasting collective alignment. Read More »

synopsis

Golden Ratio in Quasicrystal Vibrations

Experiments show that a property of the vibrations in a quasicrystal is linked to the number known as the golden ratio. Read More »

Viewpoint

Positron Emission Tomography Could Be Aided by Entanglement

The quantum entanglement of photons used in positron emission tomography (PET) scans has been shown to be surprisingly robust, opening prospects for developing quantum-enhanced PET schemes. Read More »

synopsis

Atomic Friction Defies Expectations

An experiment reveals that frictional forces can have a surprisingly complex velocity dependence at the nanoscale. Read More »

Research News

Clocking Electrons During Photoionization

The time an inner electron takes to exit an atom after photoionization has been determined using attosecond pulses from an x-ray laser. Read More »

Viewpoint

Deciphering the Blueprint of the Fruit Fly’s Brain

Researchers leverage synapse-level maps of the fruit fly brain to examine how neuronal connection probabilities vary with distance, offering insights into how these neuronal networks may optimize function within spatial constraints. Read More »

Focus

Analyzing Friction in Layered Materials

Experiments reveal the factors that determine the friction between the single-atom-thick layers in van der Waals materials, which may have uses in lubrication technology. Read More »

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