The perfect machine would have no friction at all. But this is not possible. But we can make the machines very efficient. To do this you can materials to make the machine work better. If you add lubricants to the machine it may help it. This wont work on all machines but it will on some of them. for example if you are trying to move a box up a ramp it will be very hard. But if you add oil or grease to the ramp there will be less friction, therefore making it easier to push the box up the ramp. You can also add grease or oil to a gear in a machine to make it run more smoothly.
Mechanical Efficiency Robert Mele
Ways to improve your Efficiency
Friction
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Ways To Improve Efficiency
The perfect machine would have no friction at all. But this is not possible. But we can make the machines very efficient. To do this you can materials to make the machine work better. If you add lubricants to the machine it may help it. This wont work on all machines but it will on some of them. for example if you are trying to move a box up a ramp it will be very hard. But if you add oil or grease to the ramp there will be less friction, therefore making it easier to push the box up the ramp. You can also add grease or oil to a gear in a machine to make it run more smoothly.