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the experimental investigations of Hertz. But this was a whole decade after the death
of J. Clerk Maxwell who did not live to see his views accepted.
Deeply convinced of the truth of the Faraday-Maxwell theory, Hertz set himself
the task of proving experimentally the existence of free electromagnetic waves; he
established the fact that they are governed by the same laws (reflection, refraction
and polarization) as light waves. One of the most brilliant experimenters in the
history of natural science (let us not forget that he had not yet reached the age of 37
when he died), Hertz made experiments that served as a basis for the invention of
wireless telegraphy. These experiments had to do with the Hertz vibrator and
resonator described in his first work entitled ‘Concerning Extremely Rapid Electric
Oscillations’.
The scientific value of Hertz’ discovery, however, is not the less though he did
not find a practical application for it. Hertz’ discovery was immediately recognized
throughout the world, and Popov was one of the first to begin elaborating further this
extremely important scientific advancement. He read papers and delivered public
lectures, always pointing out that this new achievement of science is not only of
theoretical value, that it may find a practical application.
May 7 (April 25, old style) 1895 is considered to be the date of the invention of
radio. It was on this day that Popov read a paper in the Physics Department of the
Russian Physical and Chemical Society entitled ‘On the Relation of Metal Powders to
Electric Oscillations’. However, Popov arrived at his discovery much earlier; not at
once, of course, but as a result of extensive research which he had conducted over a
period of several years studying electric waves and oscillations. The May 7
th
address
was a legal confirmation of Popov’s right as the inventor of wireless telegraphy.
Popov was undoubtedly an original and experienced experimenter.
But in addition, Popov was the first radio specialist to construct radio
instruments as well as radio stations in Russia. This side of his activities was above
all closely connected with the Navy, the most prominent representatives of which
valued Popov especially as a practical specialist in installing radio in the Navy.
In March 1897, he delivered a lecture at the Kronstadt Naval Officers’ Club,
dealing with the possibility of wireless telegraphy through the use of his method.
Popov’s project was well received and was approved by the higher authorities.
The year of 1897 was that of a considerable victory for the inventor of radio,
who began experimenting on a large scale.
The first radiogram was received on the island of Gogland on January 24. It was
an order of the Head of the Chief Naval Staff, Vice-Admiral Avelan, on the rendering
of aid to Finnish fishermen who had been carried out to sea on an ice-floe. It ran as
follows :
‘To the commander of the ice-breaker Yermak’.
‘An ice-floe with 50 fishermen on it broke away near Lavensari. Render
immediate aid to save these people’.
The accident was reported by telephone to St. Petersburg, and from there a
telegram was sent to Kotka, whence the order was radioed to Gogland. The chief of
the Gogland station, Zalevsky, wrote that the report was received clearly, and was
immediately passed on to the ‘Yermak’. At four the next morning the Yermak set out
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