use core::functions
use math::constants
use physics::constants

@name("Stoney length")
@url("https://en.wikipedia.org/wiki/Stoney_units")
unit stoney_length: Length = sqrt(G × electron_charge^2 / 4 π ε0 c^4)

@name("Stoney mass")
@url("https://en.wikipedia.org/wiki/Stoney_units")
unit stoney_mass: Mass = sqrt(electron_charge^2 / 4 π ε0 G)

@name("Stoney time")
@url("https://en.wikipedia.org/wiki/Stoney_units")
unit stoney_time: Time = sqrt(G × electron_charge^2 / 4 π ε0 c^6)