The physics of curling are actually really fascinatingRobbie Gonzalez3/13/14 3:20pm414EditPromoteGo to permalink They're also surprisingly counterintuitive. For instance: who here thinks that the sweepers' job is to increase or decrease the friction of the ice in front of the stone to make it curl? I definitely did. Turns out that's totally wrong. And it's still not even the weirdest thing about the physics of this sport.