Imagine a heavy book resting on a table. If you try to gently push the book across the table with the tip of your finger, it ...

WHILE THESE are a just a few examples of where you can find friction in your user experience design, they should get you started on thinking about your sites and apps with a new point of view.

Ice causes very little friction, which is why it is easy to slip over on an icy day. However, this is a good thing for ice skating and sledging. Friction is a force between two surfaces that are ...