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Monday, May 1, 2023

This Week in Physics — Turbulence in Collisionless Cosmic Plasmas

 

This Week in Physics Magazine — May 1, 2023

Viewpoint

Turbulence in Collisionless Cosmic Plasmas

François Rincon – April 26, 2023

New computer simulations show that wave-particle interactions endow thin plasmas with an effective viscosity that regulates their turbulent motions and heating.

Focus

The Optimal Angle for Cleaning with Bubbles

April 28, 2023

A stream of air bubbles can be most effective at cleaning produce or industrial equipment if it strikes at the correct angle.

Focus

Heat Carried by Electron Waves

April 26, 2023

A new observation of heat transport by surface waves involving electrons could lead to improved cooling strategies for microscale electronic components.

Research News

APS March Meeting Goes Overseas

April 25, 2023

The virtual component of this year's March Meeting was attended live by scientists at in-person satellite events in Africa, Asia, and South America.

synopsis

Metamaterial Provides Underwater Stealth

April 25, 2023

A lightweight structure made of rubber and metal layers can provide an object with underwater acoustic stealth over a broad frequency range.

synopsis

Stretching without Buckling

April 26, 2023

Materials that stretch on demand often bend in undesired directions, but a new theoretical model can produce stress-free designs that change shape without buckling.

synopsis

The Efficiency of Tandem Molecular Machines

April 27, 2023

Machines that consist of two coupled biomolecules trade thermodynamic efficiency for operating speed.

synopsis

Characterizing Clusters in Nuclear Collisions

April 28, 2023

High-energy collisions result in the formation of clusters of neutrons and protons inside atomic nuclei and in the emission of energetic ions.

synopsis

A Theoretical Framework for Optical Forces around a Fiber

May 1, 2023

A new model describes the range of forces and torques that light in a fiber can impart on dielectric particles nearby, even in the absence of helical light polarization.



 

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