Changes

'''Planck units''' are physical constants defined in such a way that the five basic constants all have value of 1:   

'''Planck units''' are physical constants defined in such a way that the five basic constants all have value of 1:   

<br>(1) the [[speed of light]] in a vacuum

# the [[speed of light]] in a vacuum

<br>(2) the [[gravitational constant]]

# the [[gravitational constant]]

<br>(3) Dirac's constant (reduced [[Planck's constant]])

# Dirac's constant (reduced [[Planck's constant]])

<br>(4) Coulomb force constant

# Coulomb force constant

<br>(5) Boltzmann constant

# Boltzmann constant

[[category:physics]]

[[category:physics]]