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	<title>fotografia della sabbia e gioielli &#8211; Ecoseven</title>
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		<title>Se la sabbia del mare e&#8217; un mare di gioielli</title>
		<link>https://www.ecoseven.net/viaggiare/mare/se-la-sabbia-del-mare-e-un-mare-di-gioielli/</link>
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		<pubDate>Tue, 26 Jul 2011 11:01:44 +0000</pubDate>
				<category><![CDATA[Mare]]></category>
		<category><![CDATA[fotografia della sabbia e gioielli]]></category>
		<category><![CDATA[gary greenberg]]></category>
		<category><![CDATA[gioielli nella sabbia]]></category>
		<category><![CDATA[sabbia]]></category>
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					<description><![CDATA[La scoperta è di un ricercatore biomedico del University College of London, Gary Greenberg. Ha fotografato i grani di sabbia amplificati più di 250 volte al microscopio rivelando che si tratta di elementi pieni di colori e forme delicate. Veri e propri gioielli, perchè sabbia fa rima con un mare di gioielli Un mare di [&#8230;]]]></description>
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<p class='sommario'>La scoperta è di un ricercatore biomedico del University College of London, Gary Greenberg. Ha fotografato i grani di sabbia amplificati più di 250 volte al microscopio rivelando che si tratta di elementi pieni di colori e forme delicate. Veri e propri gioielli, perchè sabbia fa rima con un mare di gioielli</p>
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 <![endif]-->Un mare di gioielli. Ecco cosa &egrave; la sabbia, quel lenzuolo di piccole fibre dove ci sdraiamo quando prendiamo il sole al mare. A guardarla bene, da vicino, la sabbia &egrave; una collezione di piccolissimi gioielli. A scoprirlo &egrave; stato un ricercatore biomedico del &nbsp;University College of London, Gary Greenberg. Ha fotografato i grani di sabbia amplificati pi&ugrave; di 250 volte al microscopio, rivelando che si tratta di elementi pieni di colori e forme delicate.</p>
<p>Tutto &egrave; cominciato dieci anni fa, quando Gary sviluppava la fabbricazione di microscopi tridimensionali a Philadelphia. E suo fratello, che abita a Maui, gli invi&ograve; dei tubi pieni di sabbia &ndash; quelli dove si tenevano i rullini fotografici &#8211; per invitarlo ad andare a fargli visita. Cos&igrave;, Gary rimase stupito di quanto riusc&igrave; a vedere attraverso la lente. Ogni grano era unico e &rsquo;molto prezioso&rsquo;. Nei cinque anni successivi, si dedic&ograve; a fotografare la sabbia proveniente da diverse parti del mondo con lenti, illuminazioni, macchine fotografiche e microscopi speciali.</p>
<p>Si tratta di una tecnica sperimentale che cerca di fotografare i grani a diversi livelli di focalizzazione attraverso un programma digitale che scarta le parti che non sono nitide. Il risultato &egrave; un&rsquo;immagine chiara, dal primo piano fino allo sfondo. Tutte queste fotografie sono state raccolte in un interessante libro e saranno esposte in una galleria a Londra. Greenberg si &egrave; proposto di mostrare alla gente un mondo che non &egrave; visibile ad un primo sguardo. Combinando l&rsquo;arte della fotografia con il rigore della scienza.</p>
<p> (Gfc)</p>
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