A toroidal vortex, then, is a swirling doughnut of fluid. This video from the Sleek Geeks archive (above) shows that toroidal vortices are surprisingly easy to make and, once formed, are ...

Toroidal mirrors are aspheric mirrors where the curvature of orthogonal horizontal and vertical axes is different. For optical products where a small, focused spot is needed, toroidal mirrors combine ...

R. E. Johnson, P. J. Huggins, Toroidal Atmospheres around Extrasolar Planets, Publications of the Astronomical Society of the Pacific, Vol. 118, No. 846 (August 2006 ...

Toroidal vortices are fascinating three-dimensional (3D) structures. These ring-like structures can form in free air or other fluids, resembling the surface of a donut, which is mathematically ...

The toroidal boat propeller pair installed. (Credit: rctestflight) As boring as propeller designs may seem to the average person, occasionally there’s a bit of a dust-up in the media about a ...

Dipole toroidal modes are a unique set of excitations that are predicted to occur in various physical systems, ranging from atomic nuclei to metamaterials. What characterizes these excitations, or ...

The toroidal boat propeller pair installed. (Credit: rctestflight) As boring as propeller designs may seem to the average person, occasionally there’s a bit of a dust-up in the media about a ...