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Encyclopedia > Planck temperature

The Planck temperature, named after German physicist Max Planck, is the natural unit of temperature, denoted by TP. The Planck units, in general, represent limits of quantum mechanics. Talking about anything being "hotter" than the Planck temperature does not currently work with modern science; it is the temperature at which black holes are theorized to evaporate and the temperature at which the Universe was at the instance of the big bang and cooled down from there, according to current cosmology. It is difficult to imagine anything being hotter than the Big Bang. A physicist is a scientist trained in physics. ... Max Planck Max Karl Ernst Ludwig Planck (April 23, 1858 – October 4, 1947) was one of the most important German physicists of the late 19th and early 20th century; he is considered to be the founder of quantum theory. ... In physics, Planck units are physical units of measurement originally proposed by Max Planck. ... Temperature is also the name of a song by Sean Paul. ... // Cosmology, from the Greek: κοσμολογία (cosmologia, κόσμος (cosmos) world + λογια (logia) discourse) is the study of the Universe in its totality, and by extension, humanitys place in it. ... According to the Big Bang theory, the universe emerged from an extremely dense and hot state (bottom). ...


T_P = frac{m_P c^2}{k} = sqrt{frac{hbar c^5}{G k^2}} = 1.41679 × 1032 K To help compare different orders of magnitude this page lists temperatures above 1030 kelvins. ... The kelvin (symbol: K) is the SI unit of temperature, and is one of the seven SI base units. ...


where:


mP is the Planck mass The Planck mass is the natural unit of mass, denoted by mP. It is the mass for which the Schwarzschild radius is equal to the Compton length divided by π. ≈ 1. ...


c is the speed of light in a vacuum Cherenkov effect in a swimming pool nuclear reactor. ...


hbar is the Reduced Planck constant (or Dirac's constant) Plancks constant, denoted h, is a physical constant that is used to describe the sizes of quanta. ... Plancks constant, denoted h, is a physical constant that is used to describe the sizes of quanta. ...


k is the Boltzmann constant Ludwig Boltzmann The Boltzmann constant (k or kB) is the physical constant relating temperature to energy. ...


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

A commemoration plaque for Max Planck on his discovery of Plancks constant, in front of Humboldt University, Berlin. ... Categories: Orders of magnitude (temperature) ...

External links

  • NIST reference: Planck temperature
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 - Wikipedia, the free encyclopedia (2030 words)
In physics, Planck units are physical units of measurement defined exclusively in terms of the five fundamental physical constants shown in the table below in such a manner that all of these fundamental constants take on the numerical value of 1 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.
With the exception of the Planck momentum and Planck impedance and the possible exception of the Planck mass, base and derived Planck units are impractical for empirical science, engineering, and everyday use, unless rescaled by many orders of magnitude.
Planck temperature - Wikipedia, the free encyclopedia (145 words)
The Planck temperature, named after German physicist Max Planck, is the natural unit of temperature, denoted by T
The Planck units, in general, represent limits of quantum mechanics.
Talking about anything being "hotter" than the Planck temperature does not currently work with modern science; it is the temperature at which fl holes are theorized to evaporate and the temperature at which the Universe was at the instance of the big bang and cooled down from there, according to current cosmology.
  More results at FactBites »


 

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