'When curlers sweep in front of the sliding curling stones,

[ProfessorGAC]

18. Yep!

Altering the surface is everything in curling. Can make it curve too, by only letting part of the stone hit the thin layer of liquid water.
Believe it or not, that principle works in modern bowling equipment. While spinning off the rolling access, the surface actually slightly fluidizes, creating a tiny bit more surface. (Think a temporary "flat spot".).
The centripetal force and gyro effect cause the fluid to seek a rotational level when it's no longer touching the surface keeps the ball from going out of round. The fluid dynamics are very involved.
That plus eccentric weighting makes it easier to throw a hook with lots of late break.
The fluid principles are the same, but the latter is much more complicated physical chemistry.