Physics

Using physics to improve root canal efficiency

Scientists used computational fluid dynamics to determine the effect of temperature on root canal cleaning efficiency. Higher temperatures can, to a point, improve cleansing, but this benefit falls off if the temperature gets too high.

Making masks and PPE with hydrophilic surfaces, could reduce infection risk

Since the COVID-19 virus spreads through respiratory droplets, researchers in India set out to explore how droplets deposited on face masks or frequently touched surfaces, like door handles or smartphone touch screens, dry.

Study unveils the unstable nature of some topological phases

In recent years, physicists worldwide have been conducting studies exploring the characteristics and dynamics of topological phases of matter that could enable the development of quantum devices and other new technologies. Some of these phases are supported by what is known as the time-reversal symmetry (TRS) of microscopic laws of nature.

A team of international physicists join forces in hunt for sterile neutrinos

An international group of more than 260 scientists have produced one of the most stringent tests for the existence of sterile neutrinos to date. The scientists from two major international experimental groups, MINOS+ at the Department of Energy's Fermilab and Daya Bay in China, are reporting results in Physical Review Letters ruling out oscillations into one sterile neutrino as the primary explanation for unexpected observations from recent experiments.

Ceres: An Ocean World in the Asteroid Belt

Liquid water, once thought unique to Earth, may be common on icy worlds throughout the solar system.

Explosive nuclear astrophysics

An international team has made a key discovery related to 'presolar grains' found in some meteorites. This discovery has shed light on stellar explosions and the origin of chemical elements. It has also provided a new method for astronomical research.

Deep learning and metamaterials make the invisible visible

By combining purpose-built materials and neural networks, researchers at EPFL have shown that sound can be used in high-resolution imagery.

International team develops new method to determine origin of stardust in meteorites

Analysis of meteorite content has been crucial in advancing our knowledge of the origin and evolution of our solar system. Some meteorites also contain grains of stardust. These grains predate the formation of our solar system and are now providing important insights into how the elements in the universe formed.

Theoretical study shows that matter tends to be ordered at low temperatures

Classical phase transitions are governed by temperature. One of the most familiar examples is the phase transitions of water from solid to liquid to gas. However, other parameters govern phase transitions when temperatures approach absolute zero, including pressure, the magnetic field, and doping, which introduce disorder into the molecular structure of a material.

The Science Books We're Reading in Fall 2020

Is there anything better than cozying up with a great new read on a brisk autumn day? Fall into the day in the life of an astronaut, wartime science or the ever-changing brain.

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