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2. Vacuum ejector - Wikipedia

   en.wikipedia.org/wiki/Vacuum_Ejector

   A vacuum ejector, or simply ejector is a type of vacuum pump, which produces vacuum by means of the Venturi effect.. In an ejector, a working fluid (liquid or gaseous) flows through a jet nozzle into a tube that first narrows and then expands in cross-sectional area.

3. Venturi effect - Wikipedia

   en.wikipedia.org/wiki/Venturi_effect

   Video of a Venturi meter used in a lab experiment Idealized flow in a Venturi tube. The Venturi effect is the reduction in fluid pressure that results when a moving fluid speeds up as it flows through a constricted section (or choke) of a pipe. The Venturi effect is named after its discoverer, the 18th-century Italian physicist Giovanni ...

4. Venturi scrubber - Wikipedia

   en.wikipedia.org/wiki/Venturi_scrubber

   Figure 6 - Adjustable-throat venturi scrubber with movable plate. Venturi scrubbers can be used for removing gaseous pollutants; however, they are not used when removal of gaseous pollutants is the only concern. The high inlet gas velocities in a venturi scrubber result in a very short contact time between the liquid and gas phases.

5. Crankcase ventilation system - Wikipedia

   en.wikipedia.org/wiki/Crankcase_ventilation_system

   A separator removes the oil, then the gases are fed into the exhaust system via a venturi tube. [citation needed]. This system maintains a small amount of vacuum in the crankcase and minimises the amount of oil in the engine that could potentially spill onto the racetrack. [19]

6. Smoke testing (mechanical) - Wikipedia

   en.wikipedia.org/wiki/Smoke_testing_(mechanical)

   A smoke generator used to visualize air flow. Smoke generators provide a low-cost method to visualize air flow patterns around hazard control measures, including in and around fume hoods and pressure differences between adjacent areas or rooms. [7] In infectious disease control a smoke test is done to see whether a room is under negative ...

7. The 25 best last-minute gifts that will still arrive by Christmas

   www.aol.com/lifestyle/last-minute-christmas...

   Still shopping for Christmas gifts? Don't sweat it — we've rounded up 25 incredible options that will ship by December 25.

8. Self-contained self-rescue device - Wikipedia

   en.wikipedia.org/wiki/Self-contained_self-rescue...

   Test bench for a miner's closed circuit self-rescuers. A self-contained self-rescue device, SCSR, self-contained self-rescuer, or air pack is a type of closed-circuit SCBA [1] with a portable oxygen source for providing breathable air when the surrounding atmosphere lacks oxygen or is contaminated with toxic gases, e.g. carbon monoxide.

9. 10 Overrated Foods People Are Pretending to Enjoy - AOL

   www.aol.com/10-overrated-foods-people-pretending...

   3. Foie Gras. Foie gras is probably the ultimate starter-pack item for acting like a rich person, and the one food item that chefs love to cook to appeal to said rich people.Redditors on the other ...