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physics.class-ph2019
Why pushing a bell does not produce a sound
Loris Ferrari
The difference between "beating" and "pushing" results in the perception that a push just makes the object move as a whole, while a beat produces also a sound. Through a detailed a…
physics.class-ph2018
Parametric Resonance in a dissipative system á la Kronig-Penney
Loris Ferrari
The competition between parametric resonance (PR) and dissipation is studied in the damped Kronig-Penney model, with time-dependent dissipation rate gamma(t). In the classical case…