2B20.10 Pressure Independent of Direction

2B20.10 Pressure Independent of Direction

A rubber membrane covers a thistle tube connected to a manometer. The assembly is inserted into a beaker of water and oriented in various directions.

A classic glass U-bend manometer is partially filled with colored water. The manometer stands near a large vase mostly full of clear water. A rigid plastic bulb which has been fit with a flexible rubber diaphragm on one side is submerged in the vase of water. Flexible tubing connects the bulb to one side of the manometer. The other side of the manometer is open to the air. A bright colored arrow on a stand indicates the height of the submerged bulb in the vase. In this photo, the bulb is positioned at a level well below the bottom of the manometer's U-bend, and is positioned with the diaphragm facing the bottom of the vase. The colored water in the open-air end of the manometer is much higher than the colored water in the end connected to the tubing. This follow-up photo shows the same basic set-up as the first photo on this page: a classic glass U-bend manometer is filled with colored water. A bulb with a rubber diaphragm side is submerged in a large vase of water. Flexible tubing connects the bulb to one side of the manometer. A bright colored arrow indicates the height of the submerged bulb. In this photo, the submerged bulb has been turned so that the diaphragm is held vertically and faces the camera. The height of the bulb is the same as in the previous photo. The height of the water in the open-air end of the manometer appears to be unchanged from the previous photo.

 

Location: Jar: on Floor next to U3, Manometer: C3-2