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I vecchi iPhone sono una miniera d'oro. Lo dice il rapporto annuale dell'azienda di Cupertino sulla responsabilità ambientale, secondo il quale l'azienda ha recuperato oltre una tonnellata di oro riciclando i vecchi telefonini, per un valore pari a circa 44 milioni di dollari.
Ogni iPhone contiene circa 25 mg di metallo prezioso giallo e con il programma di riciclaggio, inoltre, la Apple ha ridotto il bisogno di estrarre oro dalle miniere. "Lavoriamo duro - ha detto l'azienda in un comunicato - per tenere i nostri dispositivi lontano dalle discariche in modo che le risorse preziose in essi contenute possano essere riutilizzate".
Anche se costoso, l'oro e' un ottimo conduttore di elettricità, è malleabile e ha un'elevata resistenza alla corrosioene. Caratteristiche per cui trova largo impiego nei dispositivi elettronici, quali appunto gli smartphone.
ansa/joe.p.
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