The Planck constant is related to the quantization of light and matter.

The number used to write the Planck constant will always depend on the system of measurement in use.

The Planck constant is a leading contender to form the basis of the new definition, although not the only one.

Therefore, the Planck constant can be seen as a subatomic-scale constant.

The value of the reduced Planck constant is:

For convenience the reduced Planck constant is set equal to one and is just a rescaling of the results found throughout this article.

Each Ghost is surrounded by a thin layer of space in which a fundamental number called the Planck constant is significantly lower than elsewhere.

The origins of Transilvane remained basically unchanged, although the technology now involved nanotechnology and a miniaturization field inside which the Planck constant had been reduced.

The Planck constant is named after Max Planck, one of the founders of quantum theory, who discovered it in 1900.

In the model with large extra dimensions, values of Planck constants can be radically different, and formulas for Hawking radiation have to be modified as well.

The Planck constant of action has the dimensionality of specific relative angular momentum (areal momentum) or angular momentum's intensity.

The reduced Planck constant is tiny by everyday standards, about 10 J s, and therefore this quantization does not noticeably affect the angular momentum of macroscopic objects.

The Planck constant was first described as the proportionality constant between the energy (E) of a photon and the frequency (ν) of its associated electromagnetic wave.

In principle, the Planck constant could be determined by examining the spectrum of a black-body radiator or the kinetic energy of photoelectrons, and this is how its value was first calculated in the early twentieth century.