UNIT 4 - TRANSMISSION MACHINES

Here is a video about a use of pulleys in our lives.That is in construction because we can apply it to many machines like cranes , that´s because i have put this video, to show how does a crane work and also you can see how pulleys work.Remember:transmission machines makes our lives more confortable and easy .I hope you will like it.

                         

                   ALEJANDRO FERNÁNDEZ MORALES