Planck energy
|
|
The Planck energy is the natural unit of energy, denoted by EP.
<math>E_p = c^2 \sqrt{c \hbar G} \approx<math> 1.956 × 109 J or 1019 GeV
where:
<math>c<math> is the speed of light in a vacuum
<math>\hbar<math> is Dirac's constant
<math>G<math> is the gravitational constant
The Planck energy is also the amount of energy contained in the Planck mass of about a small flea, not counting the kinetic and potential energies.
Planck energy is approx= 10 million million million GeV (1 with nineteen zeros following it). A more accurate measurement is provided above.