fluid dynamics

How To Stop The Sound Of A Dripping Faucet Instantly, According To Science

How To Stop The Sound Of A Dripping Faucet Instantly, According To Science

It’s tempting to think that the “plink” sound produced by a falling water droplet on a liquid surface is caused by the droplet itself, but new research points to an unexpected source of this familiar, yet annoying, sound. Excitingly, the researchers have also identified a neat hack to stop it.

The Mystery About The ‘Coffee Ring Effect’ Continues

The Mystery About The ‘Coffee Ring Effect’ Continues

The “coffee ring effect” is that pattern you get when a single liquid evaporates and leaves behind a ring of previously dissolved solids. In the case of coffee, that would be the coffee grounds. A new paper in Physical Review E. demonstrates that we still have a lot to learn…

Why This Drop Of Liquor Looks Like A Galaxy

Why This Drop Of Liquor Looks Like A Galaxy

Anyone who’s imbibed a glass of ouzo — the licorice-flavoured spirit that is practically the national drink of Greece — may be familiar with how it turns cloudy when the liquor is mixed with water. But there are still some mysteries about how such mixed liquids behave.