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Matter wave
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Matter waves are a central part of the theory of quantum mechanics, being half of wave–particle duality. At all scales where measurements have been practical, matter exhibits wave-like behavior. For e
Original electron diffraction camera made and used by Nobel laureate G P Thomson and his student Alexander Reid in 1925
Original electron diffraction camera made and used by Nobel laureate G P Thomson and his student Alexander Reid in 1925
Example original electron diffraction photograph from the laboratory of G. P. Thomson, recorded 1925–1927
Example original electron diffraction photograph from the laboratory of G. P. Thomson, recorded 1925–1927
Planck constant
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The Planck constant, or Planck's constant, denoted by h, is a fundamental physical constant of foundational importance in quantum mechanics: a photon's energy is equal to its frequency multiplied by t
Matter wave
…matter waves are also known as de Broglie waves. The de Broglie wavelength is the wavelength, λ, associated with a particle with momentum p through the Planck constant, h: λ = h p . Wave-like behavior of matter has been experimentally demonstrated, first for electrons in 1927 (independently by Davisson and Germer and…
Plaque at the Humboldt University of Berlin: "Max Planck, the discoverer of the elementary quantum of action h, taught in this house from 1889 to 1928
Plaque at the Humboldt University of Berlin: "Max Planck, the discoverer of the elementary quantum of action h, taught in this house from 1889 to 1928."