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      <title>La storia delle telecomunicazioni by DANIELE SOMMATINO</title>
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      <description>La linea del tempo</description>
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      <pubDate>2020-05-13 12:58:35 UTC</pubDate>
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         <title>Messaggeri a cavallo</title>
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         <description><![CDATA[<div>Notizie a voce o scritte su pergamena o papiro.</div>]]></description>
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         <pubDate>2020-05-13 13:03:10 UTC</pubDate>
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         <title>Torri di segnalazione</title>
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         <description><![CDATA[<div>Torce o segnali di fumo.</div>]]></description>
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         <pubDate>2020-05-13 13:03:58 UTC</pubDate>
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         <title>Telegrafo elettrico</title>
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         <description><![CDATA[<div>1844 - Morse. Impulsi elettrici brevi (punti) e lunghi (linee) ricevuti e stampati su carta.</div>]]></description>
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         <pubDate>2020-05-13 13:04:20 UTC</pubDate>
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         <title>Telefono</title>
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         <description><![CDATA[<div>1876- Bell. Vibrazioni sonore in onde elettromagnetiche che ricostruiscono il suono della voce.</div>]]></description>
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         <pubDate>2020-05-13 13:28:36 UTC</pubDate>
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         <title>Radio</title>
         <author>danielesommatino1</author>
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         <description><![CDATA[<div>1896 - Marconi. Onde elettromagnetiche raccolte dall'antenna di un ricevitore diventando segnali elettrici.</div>]]></description>
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         <pubDate>2020-05-13 13:30:26 UTC</pubDate>
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         <title>Televisione</title>
         <author>danielesommatino1</author>
         <link>https://padlet.com/danielesommatino1/linea/wish/570059395</link>
         <description><![CDATA[<div>1925 - Baird. Fenomeno della persistenza della visione di 24 immagini al secondo.</div>]]></description>
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         <pubDate>2020-05-13 13:32:34 UTC</pubDate>
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         <title>Internet</title>
         <author>danielesommatino1</author>
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         <pubDate>2020-05-13 13:36:07 UTC</pubDate>
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         <title>Colombi viaggiatori</title>
         <author>danielesommatino1</author>
         <link>https://padlet.com/danielesommatino1/linea/wish/570073731</link>
         <description><![CDATA[<div>Tornavano sempre al punto di partenza.</div>]]></description>
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         <pubDate>2020-05-13 13:37:38 UTC</pubDate>
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         <title>Telegrafo</title>
         <author>danielesommatino1</author>
         <link>https://padlet.com/danielesommatino1/linea/wish/570095792</link>
         <description><![CDATA[<div>(Fine '700) - Aste mobili posizionate su un palo la cui posizione corrispondeva ad una lettera dell'alfabeto.</div>]]></description>
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         <pubDate>2020-05-13 13:44:58 UTC</pubDate>
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