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Ben 70'000 persone hanno fatto visita questo fine settimana al CERN di Ginevra durante le giornate di porte aperte, le prime dall'entrata in funzione del più grande acceleratore di particelle del mondo nell'ottobre del 2008.
Il portavoce del centro ha spiegato che in 20'000 hanno potuto visitare il tunnel lungo 27 km nei sotterranei. Ma le attività che si potevano scegliere erano 43, tra visite dei laboratori, conferenze e presentazioni di ricerche.
L'acceleratore è fermo da febbraio e per almeno 15 mesi. Dopodiché tornerà al lavoro con il doppio dell'energia e fasci di particelle ancora più ricchi.
Red.MM
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