how is Guglielmo Marconi and Karl Ferdinand Braun connected?
Guglielmo Marconi: Guglielmo Marconi, 1st Marquis of Marconi ( ; ] ; 25 April 187420 July 1937) was an Italian inventor and electrical engineer known for his pioneering work on long-distance radio transmission and for his development of Marconi's law and a radio telegraph system.
i don't know