Xray, doesn't a pulley use the wheels (effort) to pull another object (load) with reduced effort? Also Jellybean78, (Yum, can i eat one?) algodoo SHOULD COME WITH a lesson scene show how pulleys work. Or at least my algodoo folder has that scene in it. I think this is a conveyor belt.
You used [VarName] = [varValue] didn't you?
Do scene.my.[varName] = [varvalue] instead.
The first variable will not save with the scene.
The second is serialized (how do you spell that?!) and will save in the scene.
Inertia is the force that keeps a heavy wheel spinning for a while.
Did you delete the green panel?
If no, try doing that, the mechanism can then be seen clearly.
There is a heavy flywheel (heavy wheel) that keeps it going for a very long time.