Individual #Oliver_Heaviside__Heaviside  English physicist and electrical engineer who helped develop telegraphic and telephonic communications; in 1902 (independent of A. E. Kennelly) he suggested the existence of an atmospheric layer that reflects radio waves back to earth (1850-1925)
  type:  #physicist  a scientist trained in physics
  type:  #electrical_engineer  a person trained in practical applications of the theory of electricity

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