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Planck mass

The Planck mass mp is a unit of mass. These is approximately

or

It is about 22 micrograms, which is very large in comparison with subatomic particles, but well within the mass range of living things.

 


Explanation

The Planck mass is defined as

where

    ℏ Reduced Planck constant
    G Gravitational constant
    c Speed of light

 


History

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


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