Called a cymascope, it's designed to create and tune repeating patterns of waves, like those formed in wine by rubbing the rim of a crystal glass to make it vibrate or "sing." These cyclical ...

Clues & Patterns from Puddles to the Sea", about how the light reflections in water have hidden clues to tell us how choppy waves are. He said: "When you see the sun lowering in the sky and then ...