Swirling rings of fluid have for the first time been tied in a knot. Physicists accomplished the feat with the help of some unlikely lab tools: YouTube videos of dolphins and a 3-D printer. “It’s a ...

The knots in your shoelaces are familiar, but can you imagine knots made from light, water, or from the structured fluids that make LCD screens shine? They exist, and in a new Nature Physics study, ...

Get unlimited access to ad-free articles and exclusive content. LiveScience A century-old physics question had scientists and mathematicians in knots, until two researchers at the University of ...

University of Chicago physicists have succeeded in creating a vortex knot—a feat akin to tying a smoke ring into a knot. Linked and knotted vortex loops have existed in theory for more than a century, ...

More than a century after the idea was first floated, physicists have finally figured out how to tie water in knots in the laboratory. The gnarly feat, described today in Nature Physics, paves the way ...

Knotted vortex Two US researchers have effectively created "smoke rings" in water and knotted them together for the first time. The development, reported today in Nature Physics, opens the path to new ...

A century-old physics question had scientists and mathematicians in knots, until two researchers at the University of Chicago annihilated them. Subscribe to read this story ad-free Get unlimited ...

Tying a knot in a smoke ring sounds like a feat worthy of those enjoying a certain kind of cigarette. But treat smoke as an example of a fluid, and it becomes a physics problem. Now for the first time ...

Physicists at the University of Chicago have successfully created a vortex knot, after a century of failed attempts by scientists. Although, in theory, vortex knots were thought to be persistent, ...

Researchers formed stable vortex knots in chiral nematic liquid crystals and used electric pulses to reversibly fuse and split them into different knotted forms. (Nanowerk News) The knots in your ...

University of Chicago physicists have succeeding in creating a vortex knot -- a feat akin to tying a smoke ring into a knot. Linked and knotted vortex loops have existed in theory for more than a ...