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  2. Pascal's law - Wikipedia

    en.wikipedia.org/wiki/Pascal's_law

    An illustration of Pascal's barrel experiment from The forces of nature by Amédée Guillemin (1872) Pascal's barrel is the name of a hydrostatics experiment allegedly performed by Blaise Pascal in 1646. [9] In the experiment, Pascal supposedly inserted a long vertical tube into an (otherwise sealed) barrel filled with water.

  3. Torricelli's experiment - Wikipedia

    en.wikipedia.org/wiki/Torricelli's_experiment

    Three months after Magnus, Blaise Pascal published his Expériences nouvelles touchant le vide, giving details of his first barometric experiments. Pascal went farther than Torricelli, having his brother-in-law try the experiment at different altitudes on a mountain and finding, indeed, that the farther down in the ocean of atmosphere, the ...

  4. Template:Pressure Units - Wikipedia

    en.wikipedia.org/wiki/Template:Pressure_Units

    Pascal Bar Technical atmosphere Standard atmosphere ... Example reading: 1 Pa = 10 −5 bar = 1.0197 × 10 −5 at = 9.8692 × 10 −6 atm = 7.5006 ...

  5. Orders of magnitude (pressure) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(pressure)

    This is a tabulated listing of the orders of magnitude in relation to pressure expressed in pascals. psi values, prefixed with + and -, denote values relative to Earth's sea level standard atmospheric pressure (psig); otherwise, psia is assumed.

  6. Pascal (unit) - Wikipedia

    en.wikipedia.org/wiki/Pascal_(unit)

    The pascal (Pa) or kilopascal (kPa) as a unit of pressure measurement is widely used throughout the world and has largely replaced the pounds per square inch (psi) unit, except in some countries that still use the imperial measurement system or the US customary system, including the United States.

  7. Hydrostatics - Wikipedia

    en.wikipedia.org/wiki/Hydrostatics

    Pascal made contributions to developments in both hydrostatics and hydrodynamics. Pascal's Law is a fundamental principle of fluid mechanics that states that any pressure applied to the surface of a fluid is transmitted uniformly throughout the fluid in all directions, in such a way that initial variations in pressure are not changed.

  8. Standard atmosphere (unit) - Wikipedia

    en.wikipedia.org/wiki/Standard_atmosphere_(unit)

    The standard atmosphere was originally defined as the pressure exerted by a 760 mm column of mercury at 0 °C (32 °F) and standard gravity (g n = 9.806 65 m/s 2). [2] It was used as a reference condition for physical and chemical properties, and the definition of the centigrade temperature scale set 100 °C as the boiling point of water at this pressure.

  9. Vapor pressure - Wikipedia

    en.wikipedia.org/wiki/Vapor_pressure

    The International System of Units (SI) recognizes pressure as a derived unit with the dimension of force per area and designates the pascal (Pa) as its standard unit. [1] One pascal is one newton per square meter (N·m −2 or kg·m −1 ·s −2). Experimental measurement of vapor pressure is a simple procedure for common pressures between 1 ...