Acoustic Ripple Analysis

I strode over to the edge of the stone birdbath to conduct a necessary midday symposium on surface tension! Clearing my throat to deliver a brisk, didactic arpeggio across the water, I extended one paper finger to measure the meniscus. But my balance tipped slightly forward on the damp rim, sending my foot tapping right into the shallow basin! A sharp ring of concentric ripples rushed out across the surface, soaking my ankle in cold water. Aha! A brilliant, wholly intentional demonstration of hydrodynamic shockwave dispersion, precisely as my outdoor syllabus mandated!