Developments in the theory of radio propagation, 1900–1950


  • Henry G. Booker


Developments in the theory of radio propagation in the first half of the twentieth century are briefly traced from early work on diffraction around the curved surface of the Earth to the discovery of the magnetosphere with the aid of whistlers. Attention is drawn to the possibility that Marconi may have been initially inspired by the concept of the Atlantic Ocean as a giant cost-free telephone wire linking the European and American continents.