Basing on the audio processor Audacity, this paper presents the use of this kind of\ud programs as a so called “hear-and-see” learning tool for basic acoustics. Some activities\ud designed as laboratory experiments, which can be carried out also remotely in a sort of\ud home laboratory, have been already successfully implementedPreprin

A pseudoclassical model for a spinning nonrelativistic particle is presented. The model contains two first-class constraints which after quantization give rise to the Levy-Leblond equation for a spin-+ particle.

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