Mystery of Scotch Whisky Rings Solved [Slide Show]
How a photographer’s curiosity led to new scientific insight into the fluid dynamics of binary liquids
![Mystery of Scotch Whisky Rings Solved [Slide Show]](https://static.scientificamerican.com/sciam/cache/file/4186261F-72D4-472E-A3D349274140E4A3.jpg?w=590&h=393)
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