Howdy! My name is talb1 and today I am going to talk about pulleys.
A pulley is a system that is made out of this material called steel. You need to use steel because if you want to pull something really heavy you NEED to use steel. A pulley is a pretty basic machine. It works like this, You tie the thing that you want to pull to the end of the steel. Then you go to the other side of the machine and pull it at the end of the steel then it goes up!