SINOPSIS DEL LIBRO

Before delving into the mysteries of receiving and sending messages without wires a word as to the history of the art and its present day applications may be of service While popular interest in the subject has gone forward by leaps and bounds within the last two or three years it has been a matter of scientific experiment for more than a quarter of a century The wireless telegraph was invented by William Marconi at Bologna Italy in 1896 and in ...Seguir leyendo