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• Max Karl Ernst Ludwig Planck (noun)
  1. 1858-1947 german physicist whose explanation of blackbody radiation in the context of quantized energy emissions initiated quantum theory
• Max Planck (noun)
  1. 1858-1947 german physicist whose explanation of blackbody radiation in the context of quantized energy emissions initiated quantum theory
• Planck mass (noun)
  1. physics the unit of mass in natural units; 2.17644e-8 Kg or 1.221e19 GeV
• Planck's constant (noun)
  1. the constant of proportionality relating the energy of a photon to its frequency; approximately 6.626 x 10^-34 joule-second
• Planck's law (noun)
  1. physics the basis of quantum theory; the energy of electromagnetic waves is contained in indivisible quanta that have to be radiated or absorbed as a whole; the magnitude is proportional to frequency where the constant of proportionality is given by Planck's constant
• Planck's radiation law (noun)
  1. physics an equation that expresses the distribution of energy in the radiated spectrum of an ideal black body
• Planck, Max
  1. (1858-1947) a German scientist who developed the ideas on which QUANTUM THEORY is based
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