system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why does water make some things more slippery(like condensation on glassware) and some things less slippery(like wet jeans)?
gpt
It all depends on the material you are working with. Water is actually a very polar substance, it's why it's a terrible lubricant. Meaning it has a high likelihood of being attracted to and sticking to most other materials, including itself. The one big exception is non-polar materials, which includes most glass and plastics. In these cases the water is trying not to Interact with the surface to the point where it will bead up and roll off.