In a new study published in Nature Physics, researchers have developed the first controlled method for exciting and observing ...

Kelvin waves have been a mystery for decades but a new method involving superfluid helium-4 can help us control them.

Scientists have controlled Kelvin waves in superfluid helium-4, using electric fields and nanoparticles to visualize them, ...

Superfluid helium-3 (³He) is a fascinating state of ... particularly in the context of vortex dynamics and the effects of aerogels—lightweight, porous materials that can influence the ...

So they created tiny silicon particles in superfluid helium-4 by hitting a silicon wafer with a laser. This action disturbed the fluid, trapping some particles in vortex cores, and making the ...

For instance, experiments have shown that a toroidal bundle of vortex rings in superfluid helium can create a large-scale wake in the surrounding normal fluid, which reduces friction and enhances ...