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Encyclopedia > Planck pressure

The Planck pressure is the natural unit of pressure, denoted by pP. In physics, Planck units are physical units of measurement originally proposed by Max Planck. ... Pressure (symbol: p) is the force per unit area acting on a surface in a direction perpendicular to that surface. ...


4.63309 × 10113 Pa The pascal (symbol Pa) is the SI unit of pressure. ...


where


FP is the Planck force Planck Force A derived Planck unit equated to the Planck Energy (also derived) divided by the Planck length. ...


c is the speed of light in a vacuum Cherenkov effect in a swimming pool nuclear reactor. ... For other uses, see vacuum cleaner and Vacuum (musical group). ...


is the reduced Planck's constant A commemoration plaque for Max Planck on his discovery of Plancks constant, in front of Humboldt University, Berlin. ...


G is the gravitational constant According to the law of universal gravitation, the attractive force between two bodies is proportional to the product of their masses and inversely proportional to the square of the distance between them. ...


See also

Planck's natural units
Base Planck units: Planck time  | Planck length  | Planck mass  | Planck charge  | Planck temperature
Derived Planck units: Planck energy  | Planck force  | Planck power  | Planck density  | Planck angular frequency  | Planck pressure  | Planck current  | Planck voltage  | Planck impedance

  Results from FactBites:
 
Planck units: Information from Answers.com (2116 words)
In physics, Planck units are physical units of measurement defined exclusively in terms of the five universal physical constants shown in the table below in such a manner that all of these physical constants take on the numerical value of one when expressed in terms of these units.
Planck units are only one system of natural units among other systems, but might be considered unique in that these units are not based on properties of any prototype, object, or particle but are based only on properties of free space.
Planck units normalize the gravitational constant G in Newton's law of universal gravitation to 1.
Max Planck Summary (10135 words)
Planck's tenure at Münich was interrupted by illness in 1875.
Planck's suggestion was that the heat energy radiated by a fl body be thought of as a stream of "energy bundles," the magnitude of which is a function of the wavelength of the radiation.
In 1938, Planck celebrated his eightieth birthday; the DPG held an official celebration, during which the Max-Planck medal (founded as the highest medal by the DPG in 1928) was awarded to French physicist Louis de Broglie - one year before the outbreak of a new war between France and Germany.
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