Video encyclopedia

Planck constant


Planck's Constant and The Origin of Quantum Mechanics | Space Time | PBS Digital Studios

The Planck constant is a physical constant that is the quantum of action, central in quantum mechanics.
  • Origin of the definition 

  • Development and application 

  • Photon energy 

  • Value 

  • Significance of the value 

  • Dependent physical constants 

  • Determination 

  • Fixation