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2. Pressure experiment - Wikipedia

   en.wikipedia.org/wiki/Pressure_experiment

   The equipment used for pressure experiments depends on whether the pressure is to be increased or decreased and by how much. A vacuum pump is used to remove the air out of a vacuum vessel for low-pressure experiments. High-pressures can be created with a piston-cylinder apparatus, up to 5 GPa (50 000 bar) and ~2000 °C. The piston is shifted ...

3. Rubens tube - Wikipedia

   en.wikipedia.org/wiki/Rubens_tube

   The pipe is filled with the gas, and the gas leaking from the perforations is lit. If a suitable constant frequency is used, a standing wave can form within the tube. When the speaker is turned on, the standing wave will create points with oscillating (higher and lower) pressure and points with constant pressure (pressure nodes) along the tube.

4. Pipe flow - Wikipedia

   en.wikipedia.org/wiki/Pipe_flow

   In fluid mechanics, pipe flow is a type of fluid flow within a closed conduit, such as a pipe, duct or tube. It is also called as Internal flow. [1] The other type of flow within a conduit is open channel flow. These two types of flow are similar in many ways, but differ in one important aspect.

5. Heron's fountain - Wikipedia

   en.wikipedia.org/wiki/Heron's_fountain

   Pressure is transmitted by the air through pipe P2 into the water supply B, and pushes the water up into pipe P3. Water moving up pipe P3 replaces water falling from A into C, closing the loop. These principles explain the construction: The air in C must not escape through pipe P1, which is why P1 must go to the bottom, so that the water seals it.

6. Bernoulli's principle - Wikipedia

   en.wikipedia.org/wiki/Bernoulli's_principle

   The change in pressure over distance dx is dp and flow velocity v = ⁠ dx / dt ⁠. Apply Newton's second law of motion (force = mass × acceleration) and recognizing that the effective force on the parcel of fluid is −A dp. If the pressure decreases along the length of the pipe, dp is negative but the force resulting in flow is positive ...

7. Pipe network analysis - Wikipedia

   en.wikipedia.org/wiki/Pipe_network_analysis

   In fluid dynamics, pipe network analysis is the analysis of the fluid flow through a hydraulics network, containing several or many interconnected branches. The aim is to determine the flow rates and pressure drops in the individual sections of the network. This is a common problem in hydraulic design.

8. What's in our names? How our streets and landmarks tell our ...

   www.aol.com/whats-names-streets-landmarks-tell...

   The concrete markers also caused more damage than metal posts when struck by cars and presented maintenance problems: "Every two to three years we had to repaint them and re-stencil the street ...

9. Two-balloon experiment - Wikipedia

   en.wikipedia.org/wiki/Two-balloon_experiment

   The two-balloon experiment is an experiment involving interconnected balloons. It is used in physics classes as a demonstration of elasticity. Two identical balloons are inflated to different diameters and connected by means of a tube. The flow of air through the tube is controlled by a valve or clamp.