Sep 10 1930
From The Space Library
Marchese Guglielmo Marconi makes speech to the Italian Society for the Advancement of Science suggesting that radio waves could penetrate the Kennelly-Heaviside Layer and reach the planet Mars.
Marchese Guglielmo Marconi makes speech to the Italian Society for the Advancement of Science suggesting that radio waves could penetrate the Kennelly-Heaviside Layer and reach the planet Mars.