Levers are an essential part of many mechanisms. they can be used to change the ammount, the strength and the direction of movement.
Like a see-saw or ballance, the loadand the force work together. As one moves up the other moves down.
Linkages are lots of levers joined together. The piviot is an essential part of the lever system.
Linkages are an essential part of many mechanisms. They can be used to change direction, alter speed and change the timing of moving parts.
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