For 10 points—name this physicist best known for postulating the wave-particle duality of nature.
His namesake frequency is given by dividing a particle's energy by Planck's constant, while his namesake wavelength is calculated by dividing the particle's momentum into Planck's constant. These latter numbers, however, tend to be so small for ordinary matter--on the order of 10 to the -30 meters or less--that they are unobservable in macroscopic real-world situations. For 10 points—name this physicist best known for postulating the wave-particle duality of nature.
His namesake frequency is given by dividing a particle's energy by Planck's constant, while his namesake wavelength is calculated by dividing the particle's momentum into Planck's constant.
Louis(-Victor-Pierre-Raymond, 7e duc) {de Broglie}