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2. Scuba cylinder valve - Wikipedia

   en.wikipedia.org/wiki/Scuba_cylinder_valve

   The valve body is usually machined from a solid brass casting or forging, which is screwed into the cylinder neck thread, and sealed by o-ring or thread tape. The outlet is machined to fit one of the standard scuba regulator connection systems, and a gas passage is provided from the interior of the cylinder to the regulator connection.

3. Nozzle - Wikipedia

   en.wikipedia.org/wiki/Nozzle

   Jet engines for subsonic flight use convergent nozzles with a sonic exit velocity. Engines for supersonic flight, such as used for fighters and SST aircraft (e.g. Concorde) achieve the high exhaust speeds necessary for supersonic flight by using a divergent extension to the convergent engine nozzle which accelerates the exhaust to supersonic ...

4. Automotive hemming - Wikipedia

   en.wikipedia.org/wiki/Automotive_Hemming

   Hemming presses are widely used in automotive manufacturing for the hemming of sheet-metal body components. The process uses traditional hydraulically operated ‘stamping presses’ to hem closure parts, and, being the last forming process in stamping, it largely determines the external quality of such automotive parts as doors, hoods, and trunk lids.

5. Exhaust system - Wikipedia

   en.wikipedia.org/wiki/Exhaust_system

   An exhaust system is used to guide reaction exhaust gases away from a controlled combustion inside an engine or stove. The entire system conveys burnt gases from the engine and includes one or more exhaust pipes. Depending on the overall system design, the exhaust gas may flow through one or more of the following: Cylinder head and exhaust manifold

6. Eggs now qualify as ‘healthy’ food, FDA says: Here’s why

   www.aol.com/eggs-now-qualify-healthy-food...

   The U.S. Food and Drug Administration (FDA) now classifies eggs as a “healthy, nutrient-dense" food, according to a new proposed rule. Registered dietitians react to the change.

7. Components of jet engines - Wikipedia

   en.wikipedia.org/wiki/Components_of_jet_engines

   The nozzle area is increased to accommodate the higher specific volume of the exhaust gas. This maintains the same airflow through the engine to ensure no change in its operating characteristics. Exhaust or nozzle — Turbine exhaust gases pass through the propelling nozzle to produce a high velocity jet. The nozzle is usually convergent with a ...