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Surface Bubbles in the Bathtub and Reflections on Ripple Tanks
The Physics Teacher
  • Tom Greenslade, Kenyon College
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Bathtubs are splendid places for studying physics! Recently I was happily splashing about and noticed that the light from the lamp above me was being focused as bright spots on the bottom of the tub. Closer inspection showed that the spots were surrounded by dark rings. This pattern turned out to be due to the lensing effect of bubbles floating on the surface of the water.
Citation Information
“Surface Bubbles in the Tub and Reflections on Ripple Tanks”, The Physics Teacher, 50, 17 (2012)