New to Lego? Curious about gears, pulleys and stuff? The Lego Constructopedia has cool graphics that illustrate how you can use gears and pulleys to do various things.
Take this quiz and try to solve the problems before you click on the answers.
1. How do you make two pulleys connected by a belt to turn in opposite . . . → Read More: Lego Constructopedia – A Gears And Pulleys Quiz