They discovered by chance, they led to completely different uses.At the end of the 19th century there were years of political uncertainty in much of the world (a situation that seems to have not improved over time), with wars that threatened the stability of the great nations of the time, which drove a large part of scientists, universities and laboratories to hurriedly try to find a new communication system that did not need cables to transmit information, the main drawback of the telegraphBased on Hertz's previous experiences from 1886 on, different research groups sought formulas to achieve this wireless telegraphy and thus achieve a military advantage over their rivals, thanks among other things to the possibility of communicating with troops over long distances and especially with ships on the high seas. We cannot deny that Marconi had the merit of knowing how to integrate into a single piece of equipment the existing knowledge to date related to the sending and receiving of electromagnetic waves discovered by Hertz, Tesla, Branly, Lodge or Popov.
