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Chiara Sabelli, science writer

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Le Scienze •

L’orologio dell’Apocalisse non è mai stato così vicino alla mezzanotte

Le lancette dell’orologio dell’Apocalisse non sono mai state così vicine alla mezzanotte: mancano solo 85 secondi. Questa la conclusione del comitato di esperti del “Bulletin of the Atomic Scientists”, un’associazione fondata all’indomani della seconda guerra mondiale da alcuni fisici che avevano partecipato al progetto Manhattan e che intendevano mettere in guardia dal fatto che le armi nucleari avrebbero potuto portare l’umanità all’autodistruzione.

Le lancette dell’orologio dell’Apocalisse n...
Chiara Sabelli/Scienza in rete (CC-BY-SA)
Scienza in rete •

Vederci chiaro ai Campi Flegrei

Un algoritmo di intelligenza artificiale su misura per i Campi Flegrei ha rilevato in tre anni di dati grezzi raccolti dai sismometri circa il quadruplo dei terremoti rilevati dal monitoraggio manuale dell’Osservatorio Vesuviano, migliorandone al contempo la localizzazione. I risultati, pubblicati sulla rivista Science a inizio settembre, potrebbero aiutare sia a scoprire la causa della crisi bradisismica in corso, che a migliorare la gestione del rischio nell’area della caldera.
Il Manifesto •

Come prevedere i terremoti o almeno provarci | il manifesto

Questo articolo è stato pubblicato nel supplemento “Pecore elettriche”. Se lo avete perso, potete ordinarlo qui in versione cartacea. 

Quando Gregory Beroza, sismologo dell’Università di Stanford, descrive l’impatto che l’intelligenza artificiale sta avendo sulla sismologia, evoca il senso di meraviglia suscitato dalle prime immagini del cielo diffuse nel 2022 dal James Webb Space Telescope. Mostravano la nebulosa Carena con incredibile chiarezza rispetto a quanto fatto fino ad allora dai più av...
Scienza in rete •

Come ridurre la vulnerabilità sismica dei Campi Flegrei

Nonostante l’eccezionale contesto geologico dei Campi Flegrei, adeguare le strutture alle norme antisismiche nazionali ridurrebbe significativamente il tasso di mortalità, almeno per le strutture in cemento armato che rappresentano una buona parte dell’edificato a Pozzuoli, il comune dove sono collocati gli epicentri della maggior parte dei terremoti dal 2014. Il 2014 è l‘anno dal quale la sismicità dell’area si è intensificata.

Questa è la conclusione di uno studio, coordinato da Iunio Iervoli...
Zanichelli Aula di scienze •

La pericolosa “pazzia” dei cervi

Tra il 1967 e il 1979 una malattia mai registrata fino a quel momento aveva colpito 53 cervi muli (Odocoileus hemionus) tenuti in cattività in alcuni centri di ricerca in Colorado e Wyoming, negli Stati Uniti centro-occidentali. Venne chiamata sindrome del deperimento cronico (CWD, dall’inglese chronic wasting disease) o colloquialmente malattia dei cervi zombi. Gli animali colpiti diventavano letargici, digrignavano i denti, perdevano rapidamente peso e nell’arco di alcuni mesi morivano.

Nel 1...
Nature Italy •

Will the Einstein Telescope be split in two?

The competition between Italy and the Netherlands to host the next generation gravitational wave detector might end in a draw if a new proposal to build two detectors instead of one gains momentum.Due to become operational by 2035, the Einstein Telescope was originally proposed as a triangle with 10-kilometer sides located nearly 300 metres underground to reduce noise sources. Around each vertex there would be a pair of V-shaped interferometers, optimized to detect low and high...
Nature Italy •

A bridge too far? Messina Strait project could finally join Sicily to the mainland

Air View of the strait of Messina, that divides Sicily (on the right) from the Italian peninsula. Credit: Andrea Colantoni/Moment Open/Getty Images.A plan has been relaunched for a long-span suspension bridge crossing the Messina Strait to join Sicily and the mainland, an idea first mooted 60 years ago1. In 2012 a project was ready and some preparatory works were underway, but it was halted because of budget constraints.The publicly-owned company overseeing the project, Stretto...
Nature Italy •

What scientists know about the blue crab invasion

The northern Adriatic Sea has been invaded by Callinectes Sapidus, a blue crab species native to the east coast of the United States. It is an adaptable species that reproduces very quickly, and it is threatening the clam farming industry of the Po River delta in the Veneto and Emilia-Romagna regions, which normally produces about 15,000 tonnes of clams per year. The Italian government has allocated nearly €3 million for the capture and disposal of the species, authorizing fish...
Nature Italy •

Examining the role of climate change in the Emilia-Romagna floods

Operators of the Italian Red Cross and firefighters seek residents blocked in their homes on May 25, 2023 in Conselice, Italy, after heavy rains caused flooding across Italy's Emilia Romagna region. Credit: Antonio Masiello/ Stringer/ Getty Images News. After severe floods hit the Emilia-Romagna region in May, killing 17 people and displacing 37,000 more, questions emerged about the causative factors. Were the heavy rainfalls that caused the floods exceptional events, or were pr...
Nature Italy •

Italy’s new seismic hazard map is back to square one

The tortuous path of the new Italian seismic hazard map has hit another roadblock. Nature Italy has learned that the National Institute of Geophysics and Vulcanology (INGV) has completed the internal evaluation of the map, and that the outcome was negative. This means the new map has effectively been rejected by the same institute whose scientists have worked on it for more than seven years. INGV was tasked in 2015 by the Civil Protection to develop a new map that would update...
Nature Italy •

Scientists protest Italy’s ban on cultivated meat

The Italian government has approved a draft bill banning the production and commercialization of cultivated meat for human and animal consumption. The bill sets out to preserve the Italian food and culinary heritage, to protect human health and the national agri-food industry, and follows a petition launched by the national farmers’ association Coldiretti against ‘synthetic foods’ that collected nearly half a million signatures.Cultivated meat is obtained by taking fat and muscle cells from live...
Nature Italy •

Sardinia’s push to host the next big gravitational wave detector

When he visits Lula, a small mining village in the heart of Sardinia, physicist, Alessandro Cardini, tells the story of the Swiss and French villages around CERN, the European Organization for Nuclear Research. Until the 1950s they had fewer than 1,000 inhabitants each. Today their populations are more than ten times bigger, and the area hosts a vibrant international community. Cardini, a physicist at the National Institute for Nuclear Physics (INFN) in Cagliari, explains to the...
Nature Italy •

What the fusion breakthrough in the US means for Europe

On 5 December at the National Ignition Facility in Livermore, in the US, 192 laser beams hit a small capsule filled with deuterium and tritium housed in a golden cylinder, causing what physicists call ‘ignition’. For the first time, the amount of energy produced by a controlled nuclear fusion reaction was larger than the energy carried by the lasers used to initiate it. The target absorbed 2.05 megajoules of energy, emitting 3.15 megajoules in return, a 54% energy gain. Why does...
Nature Italy •

Internal rumblings over Italy’s new seismic map

Seismologists often say that earthquakes do not kill people, buildings do, when they collapse because of a shock that they were not designed to withstand. An earthquake-prone country such as Italy needs a reliable seismic risk map that indicates what kind of earthquakes can be expected in each area, for authorities to use in designing a building code. Better information reduces the risk of tragedies such as the Irpinia 1980 earthquake, that killed almost 3,000 people; the one in...

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