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Direct linkMonteiro, Martin; Stari, Cecilia; Cabeza, Cecilia; Marti, Arturo C. – Physics Teacher, 2018
Resonance is an ubiquitous phenomenon present in many systems. In particular, air resonance in cavities was studied by Hermann von Helmholtz in the 1850s. Originally used as acoustic filters, Helmholtz resonators are rigid-wall cavities that reverberate at given fixed frequencies. An adjustable type of resonator is the so-called "universal…
Descriptors: Science Instruction, Scientific Concepts, Acoustics, Science Experiments
