80. Isotropy of Pressure

Demo 1
A manometer with a rubber diaphragm-covered probe and an aquarium filled with water and a marked level of depth are provided. The pressure probe is inserted under the water to the marked level of depth and faced up, down, and sideways. The pressure reading is the same for all directions.

Demo 2
Pressure Syringe (aka Pascal's Demonstrater) Fill the syringe with water, push the plunger, and watch the water shoot out of every hole equally.