The Planck constant, or Planck's constant, denoted by h {\textstyle h} , is a fundamental physical constant of foundational importance in quantum mechanics:...

physical cosmology, Planck units are a system of units of measurement defined exclusively in terms of four universal physical constants: c, G, ħ, and kB...

North-Holland Publishing. pp. 277–306. Bose, Satyendra Nath (1924). "Plancks Gesetz und Lichtquantenhypothese". Zeitschrift für Physik (in German)....

c, the gravitational constant G, the Planck constant h, the electric constant ε0, and the elementary charge e. Physical constants can take many dimensional...

for the Planck constant, which is of foundational importance for quantum physics, and which he used to derive a set of units, today called Planck units...

ν: E = h ν . {\displaystyle E=h\nu .} The constant of proportionality, h, is known as the Planck constant. Several equivalent forms of the relation exist...

821439372122078893... is a constant resulting from the maximization equation, k is the Boltzmann constant, h is the Planck constant, and T is the absolute...

two other base units, the second and the metre and the Planck constant, a SI defining constant.: 131  A properly equipped metrology laboratory can calibrate...

_{0}} is the permittivity of free space, h {\displaystyle h} is the Planck constant, and c {\displaystyle c} is the speed of light in vacuum. The symbol...

Planck constant". The NIST Reference on Constants, Units, and Uncertainty. NIST. May 2024. Retrieved 2024-05-18. "2022 CODATA Value: reduced Planck constant"...