• Physics 18, 13
Measurements of grains flowing down an inclined plane have uncovered general principles that may help researchers model rockslides and other granular flows.
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Improving Models of Landslide Speed
Deadly results.… -
Quantum Milestones, 1916: Millikan’s Measurement of Planck’s Constant
• Physics 18, 12
The experiment provided further proof of the reality of photons, yet Millikan didn’t accept their existence until later in his career.
AIP Emilio Segrè Visual Archives
Robert Millikan and Ira Bowen… Continue Reading
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Mysterious stone face discovered on cistern wall
Archaeologists excavating the ancient city of Ptolemais on Libya’s Mediterranean coast have discovered a stone face on the wall of a cistern from the late 4th to 3rd century BC.
Ptolemais is located in Cyrenaica, a historic region in present-day…
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New chainmail-like material could be the future of armor
In a remarkable feat of chemistry, a Northwestern University-led research team has developed the first two-dimensional (2D) mechanically interlocked material.
Resembling the interlocking links in chainmail, the nanoscale material exhibits…
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Homo erectus Thrived in Steppe-Desert Landscapes One Million Years Ago, New Study Suggests
Homo erectus, an early member of the genus Homo, successfully navigated harsher and more arid terrains for longer in Eastern Africa than previously thought, according to new research.
Archaic hominins. Image credit: Ninara / CC BY 2.0.
Debate…
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Autonomous AI assistant to build nanostructures
The chemical composition of a material alone sometimes reveals little about its properties. The decisive factor is often the arrangement of the molecules in the atomic lattice structure or on the surface of the material. Materials science…
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Synchronization in neural nets: Mathematical insight into neuron readout drives significant improvements in prediction accuracy
Researchers applied the mathematical theory of synchronization to clarify how recurrent neural networks (RNNs) generate predictions, revealing a certain map, based on the generalized synchronization, that yields correct target values. They showed…
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EV Makers Hit Speed Bumps Adapting to Tesla’s Chargers
It’s a replay of the VHS versus Betamax war, but with higher stakes for a warming planet: A battle over EV charging standards finds Tesla winning decisively, as major automakers abandon their Combined Charging System (CCS) plugs in favor of…
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Building a Scalable Ion Clock with a Coulomb Crystal
• Physics 18, s7
Researchers have built an optical clock using an array of trapped ions—an architecture that can be scaled up to boost the clock’s precision.
PTB
Improving the precision of optical clocks depends on…
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