WHEEL


        A wheel is a circular component that is intended to rotate on an axial bearing. 

           The wheel is one of the main components of the wheel and axle. The oldest wheel was found near Ljubljana in Slovenia. It is expected to be 5200 years old. Wheel was made of wood. Saved is on  city museum in Ljubljana. Wheel should also invented in Mesopotamia. It's maybe that other civilization invsetigate a wheel too. In history a wheel is very important and today too. we need a wheel almost evrywhere.On a car, a bike, a lory,a train an on other stuff.