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      <title>Dalla bussola al GPS by Francesca CAMPANA</title>
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      <pubDate>2023-02-12 16:30:47 UTC</pubDate>
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         <title>La Bussola... IERI ~</title>
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         <description><![CDATA[<div>Questo strumento, inventato dai Cinesi circa 2 000 anni fa, è tutt'ora uno strumento importantissimo per la coordinazione e le direzioni.<br>La Bussola è principalmente divisa in quattro punti di riferimento molto importanti, chiamati punti cardinali:<br><strong>l’Est</strong> (Oriente) corrisponde al punto in cui il Sole sorge al mattino;<br><br><strong>l’Ovest</strong> (Occidente) è il punto opposto all’Est, dove il Sole tramonta la sera;<br><br><strong>il</strong> <strong>Sud</strong> (Meridione) è il punto in cui il Sole si trova a mezzogiorno;<br><br><strong>il Nord</strong> (Settentrione) è il punto opposto al Sud, dove il Sole non appare mai.<br><br>Questo strumento ha migliorato la navigazione facilitando i commerci marittimi e i viaggi per mare rendendoli più sicuri ed efficienti. È costituita da un ago magnetizzato che, libero di girare su un perno, ha la proprietà di allinearsi lungo le linee di forza del campo magnetico terrestre, indicando così la direzione.<br><br>Per molti secoli, tuttavia, le “bussole” primitive non furono usate per la navigazione, ma per allineare gli edifici in base ai principi del <strong>"feng shui"</strong>, una forma di architettura e di divinazione, facente parte della filosofia taoista, secondo la quale esistono direzioni e orientamenti particolarmente propizi per ciascuna azione da compiere. Le prime “bussole” erano composte da una sorta di cucchiaio collocato su un piastra quadrata. L’uso della bussola per la navigazione, invece, si sviluppò solo tra il IX e l’XI secolo d. C<br><br><br>Insieme ai miglioramenti nella costruzione delle navi, la bussola fu indispensabile per le scoperte geografiche dei secoli XV-XVI:<br><br>i Paesi del Vecchio continente poterono prima scoprire e poi conquistare vasti territori in tutto il Pianeta, dando avvio a una supremazia economica e geopolitica che sarebbe durata fino al Novecento. In sostanza, la bussola fu inventata dai cinesi, ma furono gli europei a sfruttarla nel modo migliore.<br><br><br><br><br><br></div>]]></description>
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         <pubDate>2023-02-27 10:38:19 UTC</pubDate>
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         <title>Spiegazione semplice di come funziona il GPS</title>
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         <pubDate>2023-02-27 10:39:56 UTC</pubDate>
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         <title></title>
         <author>albertoaccardi_studente</author>
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         <pubDate>2023-02-27 10:45:46 UTC</pubDate>
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         <title>Video sulla spiegazione di come funziona una Bussola</title>
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         <pubDate>2023-02-27 10:46:00 UTC</pubDate>
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         <title>LA BUSSOLA</title>
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         <pubDate>2023-02-27 10:47:26 UTC</pubDate>
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         <title>Evoluzione </title>
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         <pubDate>2023-02-27 10:48:57 UTC</pubDate>
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         <title></title>
         <author>albertoaccardi_studente</author>
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         <pubDate>2023-02-27 10:53:22 UTC</pubDate>
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         <pubDate>2023-03-06 10:17:04 UTC</pubDate>
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         <title></title>
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         <title></title>
         <author>paramvirsingh_studente</author>
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         <pubDate>2023-03-06 10:30:16 UTC</pubDate>
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         <title></title>
         <author>paramvirsingh_studente</author>
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         <pubDate>2023-03-06 10:30:42 UTC</pubDate>
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         <title></title>
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         <description><![CDATA[<div>approfondimento d'inglese sulla bussola</div>]]></description>
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         <pubDate>2023-03-06 10:31:33 UTC</pubDate>
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         <title></title>
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         <pubDate>2023-03-06 10:37:50 UTC</pubDate>
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         <title></title>
         <author>thomasrodolfi_studente</author>
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         <pubDate>2023-03-06 10:40:55 UTC</pubDate>
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         <title></title>
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         <pubDate>2023-03-06 10:41:11 UTC</pubDate>
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         <title>Il GPS</title>
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         <pubDate>2023-03-06 10:43:31 UTC</pubDate>
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         <title>LA BUSSOLA</title>
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         <description><![CDATA[<div>Il desiderio degli uomini dell'epoca di sapere come orientarsi al meglio li spingeva sempre a svolgere delle ricerche e col tempo si scoprirono molte cose.</div><div><br></div><div>Dal muschio sugli alberi alle stelle e al tramonto o l'alba.</div><div><br></div><div>Con le varie evoluzioni il sapersi orientare risolse molte esigenze come andare a caccia e sapere dove trovare dei fiumi per l'acqua.</div><div><br></div><div>Con il passare degli anni variarono gli strumenti come per esempio la scoperta dei campi magnetici fece creare la bussola magnetica.</div><div><br></div><div>La bussola fu portata in europa ai tempi del rinascimento e veniva già usata dagli arabi e dai cinesi.</div><div>All'inizio gli aghi venivano messi in vasi d'acqua trasparente poi venne creata la bussola "a secco" da Flavio Gioja.</div><div><br></div><div>La prima bussola risale al 1086.</div><div><br><br></div>]]></description>
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         <pubDate>2023-03-06 10:46:13 UTC</pubDate>
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         <title>GPS (Global Positioning System)</title>
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         <description><![CDATA[<div>Il monitoraggio offerto dal gps serve&nbsp; per conoscere l’esatta posizione di un oggetto, una persona o un veicolo.</div><div><br>Tutti noi abbiamo navigatori satellitari, cellulari, la maggior parte dotati di GPS,&nbsp; gli autoveicoli ed altri dispositivi portatili. Le applicazioni per il sistema di posizionamento terrestre le usiamo tutti i giorni.</div><div><br>Il GPS venne inventato verso la fine degli anni 60’ e nacque precisamente nel 1973 grazie alle precedenti conoscenze sui sistemi di navigazione</div><div><br><strong>COME FUNZIONA IL GPS</strong></div><div>Il Sistema GPS si divide in 3 segmenti:</div><div>-<strong>segmento</strong> <strong>spaziale</strong></div><div>-<strong>segmento</strong> <strong>di</strong> <strong>controllo</strong></div><div>-<strong>segmento</strong> <strong>utente</strong></div><div><br>Il <strong>segmento spaziale</strong> è dato da 31 satelliti che ruotano attorno alla terra e che sono fondamentali per il GPS. I satelliti viaggiano a oltre 20.000 km dalla terra e compiono un giro completo attorno ad essa in 12 ore.</div><div>Il <strong>segmento di controllo</strong> e dato dalla stazione principale e gestisce tutte le informazioni ottenute dai satelliti</div><div>Il <strong>segmento di utilizzo </strong>sono i ricevitori GPS presenti sulla terra</div><div><br>In ogni istante i satelliti inviano la propria posizione alle torri di controllo. Quando un ricevitore GPS viene attivato, riceve le informazioni della posizione dei vari satelliti.</div>]]></description>
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         <pubDate>2023-03-06 10:46:14 UTC</pubDate>
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         <title>Video</title>
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         <title>Video</title>
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         <title>GPS</title>
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         <title>The compass was probably born in China before the year 1000, but was initially used as a toy or ritual object. Only from the 11th century did the Chinese begin to use it for navigation.This more refined needle compass could be floated in water, set on a pointed rod, or suspended on a silk thread. This orientation characteristics made it much more suitable for navigation.Actually in Amalfi a gigantic statue celebrates an illustrious fellow citizen, Flavio Gioia, inventor who around 1300 would have invented or perfected the compass.GPS was created to replace the previous system, the Transit. The GPS design was developed in 1973 to overcome the limitations of earlier navigation systems by integrating ideas from several earlier systems, including a number of classified studies from the 1960s.</title>
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         <pubDate>2023-03-15 16:09:43 UTC</pubDate>
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         <pubDate>2023-03-21 11:09:01 UTC</pubDate>
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         <title>inglese</title>
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         <pubDate>2023-03-27 09:35:13 UTC</pubDate>
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