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Planck mass
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Everything about The Planck Mass totally explained

The Planck mass is the unit of mass, denoted by mP, in the system of natural units known as Planck units. Named after Max Planck, it's the mass for which the Schwarzschild radius is equal to the Compton length divided by π.:m_P = sqrtfrac ≈ 4.340 µg = 2.43 × 1018 GeV/c2.

Adding the 8π simplifies several equations in gravity.
   Unlike most of the other Planck units, the Planck mass is on a scale more or less conceivable to humans, as the body mass of a flea is roughly 4000 to 5000 mP.

Significance

The Planck mass is the mass of a black hole whose Compton wavelength is comparable to its Schwarzschild radius. The Schwarzschild radius of a Planck mass black hole is the Planck length. Planck length, believed to be the scale at which General Relativity and the fundamentals of quantum physics become mutually important to describe mechanics at this specific scale.

Further Information

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