Machines, relation with work, force

Machines, have a great relation with work. Human beings use machines, simple machines, machines make work easier, making people create small force on their side, but great force is produced on the other side, causing the desire of the human beings work and job. Force is first created and done by the human, but through the machines mechanical privileges, creating great force and work on the other side, giving humans the advantage of achievement of what they are seeking.