Resumen de The Shadow Knows: Inferring the Density Distribution of a Nonuniform Medium from its Standing Wave Pattern

Philippe Binder, Ian Cunnygham

• In a recent note in this journal,1 Gluck presents a beautiful demonstration of the standing wave generated by a strip of material with linearly varying width (a trapezoid). As expected, the resulting wave envelope (and its shadow) showed a varying wavelength�smaller as the strip width gets larger