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The polar jet stream can travel at speeds greater than 180 km/h (110 mph). ... General configuration of the polar and subtropical jet streams Cross section of the ...
Each jet reaches farther than any other jet at the point where it touches the envelope, which is at twice the depth of the jet's source. The depth at which two jets cross is the sum of their source depths. Every jet (even if not leaving horizontally) takes a parabolic path whose directrix is the surface of the water.
Vena contracta is the point in a fluid stream where the diameter of the stream is the least, and the fluid velocity is at its maximum, such as in the case of a stream issuing out of a nozzle . (Evangelista Torricelli, 1643). It is a place where the cross section area is minimal.
The balloons of the period were inflated with coal gas, a moderate lifting medium compared to hydrogen or helium, but with enough lift to use the winds that would later be known as the Jet Stream. In 1859, John Wise built an enormous aerostat named the Atlantic, intending to cross the Atlantic.
Cold section: Air intake (inlet) — For subsonic aircraft, the inlet is a duct which is required to ensure smooth airflow into the engine despite air approaching the inlet from directions other than straight ahead. This occurs on the ground from cross winds and in flight with aircraft pitch and yaw motions.
The Atlantic jet stream is a fast and narrow current of air flowing from west to east and encircling the globe and is widely used by airplanes traveling east from North America to cut down on ...
In recent weeks, the jet stream has appeared unusual and disjointed, scientists say. Some researchers think climate change is disrupting its flow and causing it to bake regions in heat longer.
Jet engines have propelled high speed cars, particularly drag racers, with the all-time record held by a rocket car. A turbofan powered car, ThrustSSC, currently holds the land speed record. Jet engine designs are frequently modified for non-aircraft applications, as industrial gas turbines or marine powerplants. These are used in electrical ...