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Planck temperature

The Planck temperature T_p is the highest imaginable temperature. In degrees Kelvin it is

 

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Explanation

For the temperature as it was 5 × 10⁴⁴ seconds after the Big Bang, the formula is

where

mp	Planck mass
c	Speed of light
kB	Boltzmann constant

 

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Alternative 1

The formula for the highest possible temperature is

where

ℏ	Reduced Planck constant
c	Speed of light
G	Gravitational constant
kB	Boltzmann constant

 

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History The name Planck temperature is a tribute to the German physicist Max Planck (1858 - 1947).

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