555:(again) to talk. We can not make claims about someone by trying to translate and interpret non-English primary sources. The claim in the lead, as written, is probably wrong since it combines the claim of "developing long-distance audio transmissions" with "radio signals". The body of the article (and the available sources) do not support this claim. de Moura at some point added, or described, a coherer based radio bell signal, not radio voice transmission. We have de Moura proposing using radio voice transmission in a patent completed before 1903 but there is no reference that he ever accomplished this and that date would be after Fessenden's 1900 voice transmission.
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scientific research was duly appreciated and it is known that he rejected opportunities to publicize its inventions. Thus, the popular idea that was formed around him as a persecuted, wronged and suffered scientist facing an insensitive and obscurantist world, is a partial truth. His biography still has many gaps and only part of his scientific legacy has been studied, with a lot of autograph documentation still to be explored. In any case, in Brazil he has already received a series of official honors and recognitions. He is
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He had many technical and financial difficulties to develop his research, he worked most of the time alone and found a lot of resistance and disbelief on the part of authorities and the population, which prevented his recognition in life from being broader, but in certain spheres his stature
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I think
Roberto read about some experiments made by Heinrich Hertz with the crookes tube that's why he included it on patents and such. Reading the patents and info I don't really know if he knew what he was doing, he seems to always end recurring to the "photophone" in his more detailed
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explanation. What I think he "invented" was a megaphone-photophone system, and later patented that spark wave generator wich apparently worked. The reports made by the magazines were probably related to the photophone and megaphone.
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