system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: how come when you pour water out of some glasses it pours smooth but some times it goes down the side?
gpt
Water tends to want to "stick" to glass, and other surfaces. This is called adhesion. This is one of the forces acting to turn the water as it pours. The faster you pour, the more force that is required to turn the liquid to keep it attached to the glass. At some point, the water is moving too fast for the adhesive force to turn it, and it detaches from the surface.

Here's a kind of similar analogy... Imagine you're running down a hall with a hardwood floor in socks, and there is a corner you want to turn around at the end. If you're running slowly, you can probably stay close to the wall. If you're sprinting, you're either going to slip or you have to take a wider turn and "detach" from the wall.