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2. Oil pressure - Wikipedia

   en.wikipedia.org/wiki/Oil_pressure

   Murphy oil pressure gauges with switches that activate on low pressure. Oil pressure is an important factor in the longevity of most internal combustion engines.With a forced lubrication system (invented by Frederick Lanchester), oil is picked up by a positive displacement oil pump and forced through oil galleries (passageways) into bearings, such as the main bearings, big end bearings and ...

3. Paschen's law - Wikipedia

   en.wikipedia.org/wiki/Paschen's_law

   Paschen's law is an equation that gives the breakdown voltage, that is, the voltage necessary to start a discharge or electric arc, between two electrodes in a gas as a function of pressure and gap length. [2] [3] It is named after Friedrich Paschen who discovered it empirically in 1889.

4. Pressure measurement - Wikipedia

   en.wikipedia.org/wiki/Pressure_measurement

   Checking tire pressure with a spring and piston tire-pressure gauge. Pressure measurement is the measurement of an applied force by a fluid ( liquid or gas) on a surface. Pressure is typically measured in units of force per unit of surface area. Many techniques have been developed for the measurement of pressure and vacuum.

5. Introduction to gauge theory - Wikipedia

   en.wikipedia.org/wiki/Introduction_to_gauge_theory

   A gauge theory is a type of theory in physics. The word gauge means a measurement, a thickness, an in-between distance (as in railroad tracks ), or a resulting number of units per certain parameter (a number of loops in an inch of fabric or a number of lead balls in a pound of ammunition ). [1] Modern theories describe physical forces in terms ...

6. Pressure - Wikipedia

   en.wikipedia.org/wiki/Pressure

   Pressure (symbol: p or P) is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. [1] : 445 Gauge pressure (also spelled gage pressure) [a] is the pressure relative to the ambient pressure. Various units are used to express pressure.

7. Dynamic pressure - Wikipedia

   en.wikipedia.org/wiki/Dynamic_pressure

   Dynamic pressure. In fluid dynamics, dynamic pressure (denoted by q or Q and sometimes called velocity pressure) is the quantity defined by: [1] where (in SI units): u is the flow speed in m/s. It can be thought of as the fluid's kinetic energy per unit volume . For incompressible flow, the dynamic pressure of a fluid is the difference between ...

8. BYD’s aggressive discounts are annoying customers—and ...

   www.aol.com/finance/byd-aggressive-discounts...

   Rever’s website on Monday displayed several price cuts, but the highest was for the extended range Atto 3 which had a discount of 340,000 Thai baht ($9330) from a list price of 1,199,900 Thai ...

9. Pressure-gradient force - Wikipedia

   en.wikipedia.org/wiki/Pressure-gradient_force

   In fluid mechanics, the pressure-gradient force is the force that results when there is a difference in pressure across a surface. In general, a pressure is a force per unit area across a surface. A difference in pressure across a surface then implies a difference in force, which can result in an acceleration according to Newton's second law of ...