Portrait of Adriano de Paiva by Jose Alberto Nunes.
Portrait of Adriano de Paiva by José Alberto Nunes, University of Porto.
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Adriano de Paiva Issues the First Separate Publication on Television

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In 1880 Adriano de Paiva, a professor of chemistry and physics at the Polytechnic Academy at Porto (Portugal) issued the first separate publication on television: La telescopie électrique basée sur l'emploi du selenium, a 48-page pamphlet published in Porto.

Paiva's paper represented the first theoretical formulation of the possibility of using selenium to transmit images at a distance. Paiva became interseted in the possibility of transmitting images by wire after the demonstration of Alexander Graham Bell's telephone in Lisbon in November 1877.

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