Background: The development of organic/inorganic metal halide perovskites has seen unprecedent growth since their first recognition for applications in optoelectronic devices. However, thermodynamic stability and toxicity remains a challenge considering wide-scale deployment the future. This spurred an interest search perovskite-inspired materials which are expected ...

In this paper, we propose a physical model of the hi-hat. Two cymbals are modeled with thin spherical shells, into which point mass resembling stick collides. models proposed for collision two cymbals: spring and an algorithmically mimicked inelastic model. The governing equations derived, discretized using finite difference method, analyzed numerically. Several numerical experiments have revea...