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        "rendered": "<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<p><strong>SCHEDA TECNICA<\/strong>&nbsp;<\/p>\n\n\n\n<p><strong>Committente:<\/strong> European Southern Observatory (ESO)&nbsp;<\/p>\n\n\n\n<p><strong>Gen. Contractor:<\/strong>Ace Consortium, lead by<em><strong>&nbsp;Cimolai SpA<\/strong><\/em>&nbsp;<\/p>\n\n\n\n<p><strong>Descrizione:<\/strong>ELT (Extremely Large Telescope) \u00e8 un telescopio ottico nel vicino e medio infrarosso, con diametro dello specchio primario pari a 39 metri, situato a&nbsp;<strong>Cerro Amazones<\/strong>, nelle Ande cilene, a circa 3.000 m slm. Attualmente in fase di costruzione,&nbsp;<strong>sar\u00e0 il telescopio ottico e a infrarossi pi\u00f9 grande del mondo<\/strong>. Sar\u00e0 gestito e mantenuto dall&#8217;Osservatorio di Paranal di ESO, a circa 20 km di distanza.&nbsp;<br>La progettazione, la produzione, il trasporto in sito, l&#8217;assemblaggio e il collaudo dell\u2019ELT sono stati affidati al&nbsp;<strong>Consorzio ACe<\/strong>,&nbsp;<strong>guidato da Cimolai SpA.<\/strong>&nbsp;<br>ELT sar\u00e0 costituito da una struttura metallica con un diametro di 71 metri e un&#8217;altezza di 62 metri. Il telescopio, che prevede soluzioni di minuziosa e altissima tecnologia, sar\u00e0 posizionato all&#8217;interno di una struttura rotante in acciaio chiamata&nbsp;<em><strong>dome<\/strong><\/em>, di circa 6.000 tonnellate, dotata di aperture scorrevoli, con un diametro di 92 m e altezza di 80 m, e di uno schermo (<em><strong>windscreen<\/strong><\/em>) parzialmente permeabile. Inoltre, nella parte bassa, attorno al dome, \u00e8 prevista la costruzione di un edificio ausiliare (<strong><em>Auxiliary Building<\/em><\/strong>) che racchiuder\u00e0 tutti i locali tecnici oltre all&#8217;ingresso princiapale.&nbsp;<br>Il progetto comprende, oltre alle parti ina acciaio, dal peso di circa 13.500 ton, anche le opere civili, i meccanismi, gli impianti e le finiture.&nbsp;<br>Il telescopio (<em><strong>Main Structure<\/strong><\/em>), composto da una struttura in acciaio di circa 4.200 ton, una volta integrato con lo specchi e strumenti, avr\u00e0 una massa rotante di 4.700 ton. Questa massa si muover\u00e0 con precisione micrometrica grazie ad un sistema idrostatico, motori lineari speciali ed encoder ad altissima risoluzione. Il tutto sar\u00e0 installato su un sistema di isolamento sismico di nuova concezione che assicurer\u00e0 un&#8217;elevata rigidezza e stabilit\u00e0 in fase di osservazione mentre, in fase sismica, fornir\u00e0 il necessario smorzamento garantendo la salvaguardia dei delicatissimi specchi e strumenti.<\/p>\n<\/div>\n\n\n\n\n\n\n\n<div style=\"height:2rem\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-swiper\"><div class=\"wp-swiper__wrapper\"><div class=\"swiper-container swiper\" 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