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Concept

Planck mass

The Planck mass is a fundamental unit in the system of natural units known as Planck units. Derived from universal constants (Planck constant, speed of light, gravitational constant), it represents a mass scale where quantum effects of gravity become significant. Approximately 2.176 × 10⁻⁸ kilograms, it's the mass of a hypothetical black hole whose Schwarzschild radius is equal to its Compton wavelength, indicating the boundary of current physical theories.

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