2. The Principle of Hydraulics
(Pascal's Principle)
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A force applied to one section of an enclosed liquid at rest will be transferred to the entire liquid with the same amount of force. |
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If you press a syringe (area = 1cm2) with a force of 2kg, the hydraulic pressure generated is 2kg/cm2. If this pressure flows through a tube into a cylinder with a 30 cm2 inner diameter, the pressure on all of the internal surfaces of the cylinder(including the piston) will be 2 kg/cm2. Therefore, the movable piston can support a 60 kg object. |
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