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Hace 20 horas · 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 example, a beam of electrons can be diffracted just like a beam of light or a water wave.. The concept that matter behaves like a wave was proposed by French physicist Louis de Broglie (/ d ə ˈ b ...
Hace 20 horas · e. Eugenics ( / juːˈdʒɛnɪks / yoo-JEN-iks; from Ancient Greek εύ̃ (eû) 'good, well', and -γενής (genḗs) 'come into being, growing') [1] is a set of beliefs and practices that aim to improve the genetic quality of a human population. [2] [3] [4] Historically, eugenicists have attempted to alter human gene pools by excluding ...