Mathematicians call the shape of a doughnut a 'toroid'. Physicists call a swirling fluid a 'vortex'. A toroidal vortex, then, is a swirling doughnut of fluid. This video from the Sleek Geeks archive ...
Abstract: This paper reports a new type of degenerate mode gyroscope with measured Q-factor of > 100,000 on both modes at a compact size of 1760 μm diameter. The toroidal ring gyroscope consists of an ...
Abstract: The Kuzmin–Toomre family of discs is used to construct potential–density pairs that represent flat ring structures in terms of elementary functions. Systems composed of two concentric flat ...
1 Shanghai Key Laboratory of Modern Optics and Systems, University of Shanghai for Science and Technology, Shanghai, China 2 Shanghai Institute of Intelligent Science and Technology, Tongji University ...
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