= Guglielmo Marconi
{c}
{title2=1874–1937}
= G. Marconi
{c}
{synonym}
<Guglielmo Marconi> developed <wireless telegraphy> by coordinating the transmitter, propagation and receiver as one experimental system. His lecture describes a <coherer> containing nickel and silver filings, connected to a tuned circuit and a relay. The relay operates a recorder and a tapper that resets the detector, allowing successive signals to be registered. Long and short wave trains encode telegraphic signs. Improving detector reliability and <resonance> of <electrical circuits> therefore mattered alongside producing radiation at the transmitter.<Wireless Telegraphic Communication by Guglielmo Marconi>[1909 lecture, p. 197, Fig. 1 and receiver/reset description]{ref}
A <physicist>.https://magazines.hachettelearning.com/magazine/physics-review/19/2/the-nobel-prize-in-1909/[Independent biographical identity and professional specialization]{ref}
\Image[https://upload.wikimedia.org/wikipedia/commons/d/da/Marconi_1909.jpg]
{title=Portrait of <Guglielmo Marconi>}
{width=240}
<Wireless telegraphy> links the dynamics of a transmitter, propagation and the response of a receiver. A successful detector reading depends on that complete chain, rather than on the transmitter alone.
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