1.1 What is friction? Take this everyday example: when a coffee mug rests on a flat table, the kinetic frictional force is zero. There is no force trying to move the mug across the table, so there is ...

Curling is a thrilling sport filled with strategy, skill, sweeping, surprise and science! Curling is a mesmerizing sport filled with strategy, skill, surprise, a lot of yelling, and science—yes ...