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One version of Pascal's Principle states that increases in pressure in an enclosed system are transmitted uniformly to all portions of the system. This demonstration, at Hampden-Sydney College, has a cylinder and piston to increase the pressure on the water inside. The water squirts out in all directions from the orifices at the same rate, indicating equal pressures. |
| This example is at the University of Cincinnati. Both pieces of apparatus are unmarked, and both exhibit the same design flaw: some of the orifices point backward, thus soaking the demonstrator. |  |