He was attached to the wireless telegraphy section for the whole of the war and served in the station at the Eiffel Tower. During these war years all his spare time was spent thinking about technical problems.
Ta oli lisatud traadita telegraafi osa kogu sõja ja teeninud jaama Eiffeli torn. Nende sõda aastat kõik oma vaba aja kulutab mõelda tehnilisi probleeme.