When pouring a liquid, what determines if it pours out nicely or dribbles down the side of the original container?

Question

I hate that!

In: Chemistry

Answer 1

It seems it’s a more complicated phenomenon than many people realize. [Here’s an article on some research just this year on how the interaction between “hydrodynamic suction” and wetting influences whether the pour detaches cleanly or dribbles.](https://arstechnica.com/science/2019/05/dribble-no-more-physics-can-help-combat-that-pesky-teapot-effect/)