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Archimedes

Energy from burning mirrors. First in the world that works at night. Meets 4 thousand families
Priolo (Siracusa) - Birth of the "farm the sun." Priolo A basin of Augusta, Melissa symbol of the industrial triangle of Syracuse and Europe's largest petrochemical complex, which sees the largest concentration of refineries, the game is to rescue the energy of the future: clean and renewable. Thursday, July 15 was opened a solar power plant in Priolo Gargallo thermodynamics 'Archimedes', before the world to use molten salt technology integrated with a combined cycle plant.

INCENTIVES FOR RENEWABLE ENERGY - A very important day, which also coincides with the announcement that the government has restored to maneuver the system of incentives for renewables, given by Environment Minister Stefania Prestigiacomo. Ten years after the intuition of Carlo Rubbia and then developed by researchers of 'Aeneas and subsequently industrialized Enel, it takes the body a project that was born in the wake of the energy crisis of the '80s led to the construction of several solar power plants, still function in the California desert, whose operation is characterized by the use of parabolic trough mirrors to concentrate and reflect sunlight onto pipes flowing with mineral oil (the oil is heated and channeled into a boiler where the water is transformed into high-pressure steam and drives turbines to produce electricity).

THE FARM OF THE SUN - But the new Central Priolo, "the farm of the sun", to quote the CEO Fulvio Conti of Enel, is unprecedented in the world, since it involves the use of molten salts (derived from fertilizer) as a heat transfer fluid and is also the first in the world to integrate a combined-cycle gas and solar thermal power plant for the production of electricity. Not only that. Archimedes' (whose name is also a tribute to the great physicist and mathematician who over 2,200 years ago with his "burning mirrors" the Roman ships on fire and saved from the siege enemy Syracuse) has a feature that makes it unique: it is able to collect and preserve for many hours, 5 km along its and through special tubes that run through 30 thousand square meters of parabolic trough mirrors, the heat of the sun to generate electricity at night or under overcast skies.

"The capacity of the plant, costing around 60 million, is 5 megawatts, with an operation of around 3 thousand hours per year. A level to meet the needs of 4 thousand families, "said Conti. However, acknowledges that "a higher cost per kilowatt-hour at least five or six times the energy produced by conventional fossil fuels." "In this case, however, a saving of 2,100 tonnes of oil per year and reducing carbon dioxide emissions for about 3250 tons. In short, as Conti says: "One more step to achieving a dream: to have abundant energy at low cost and above all sustainable."

Source: Corriere.it

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Same beach, same sea? The assessment of bathers

Same beach, same sea? In Italy it is less true: they changed a lot. Some maybe even better, definitely a lot worse. One of the more detailed studies facts on the Italian coast dates back 14 years ago and certified that only 28% of 8 thousand kilometers of coastline remained free of buildings and beaches. Since then the situation has deteriorated a lot. As late as 1996, for example, in Sicily for 63% of the shoreline was already occupied by concrete. If you add the nuclei built is still not reached 74%. In fact, only 18% remained free of cement. The built coastal holiday is intended for use by an average of 149 dwellings per kilometer. According to the Atlas of the beaches of the Italian National Research Council only 700 km - that is less than 10% of the national coastal development - were present system of sand dunes. And only 50% - ie 350 km - were in their natural state: an average of only 23 km for the 15 coastal regions.

As the beaches and coastline in general, remain one of the most valuable asset of the country, Corriere della Sera, Italian WWF urges swimmers to tell if and how it changed the way they jump into the sea.

ALERTS READERS - Readers are invited to describe the Corriere on the beach or just the most popular choice for holidays, or for the weekend was, how she became, at the state. Still exist? Decreased? There appeared new bathing facilities, kiosks, mooring? It was the free beach and no longer is? E 'clean, dirty? New buildings have appeared in the sea fish farms on the coast there are industrial plants, warehouses? When the beach and the sea are no longer the same, and their conditions have worsened, write a short text that describes these changes, and attach photos possible to highlight the differences in the past.

RECOVERY PROJECT - The cases will all be published on Corriere.it. Choosing from one of these in late summer, engineers will develop research and projects of WWF for free a recovery plan which will be published and sent to the competent local authorities. Even if it is, precisely, a drop in the bucket, or better than a beach about 8000 km of coastline, replace even one, could be a useful signal to look differently at a future where you can review the same beaches, and the same sea.

Source: Corriere.it

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Forty years ago, the revolt of Reggio Calabria

A city at war for the regional capital, Catanzaro assigned instead. A real war, with five deaths and two thousand injured more than 800 arrests. Forty years ago, the revolt of Reggio Calabria. A city at war for the regional capital, Catanzaro assigned instead. A real war, with five deaths and two thousand wounded, more than 800 arrests, damage worth billions of pounds at the time. The Reggio devastated their city, were engaged in fierce clashes with the police, broke the bond that united them to the major political parties and trade unions and elected new forms of representation. In Reggio

during the riots were closed shops and offices, blocked ports, airports, railways and highways, abandoned his exams at school, latches and banks, and even the INPS. It was a revolt of the people, rioters took to the streets, but also young and old, and is alive the memory of the elderly and housewives dressed in black move between the revolutionary barricades as experts. The revolt arose from claims by a plume (the regional capital, in fact) but it had a concrete political and economic impact for a city so far cut off from the development of the boom years, and now ran the risk of losing the train in the Region, in other words, it meant a few thousand new government jobs, opening offices and offices for the departments, led the administrative and commercial, and prestige.

Reggio was upside down for eight months, during which succeeded unimaginable things: he was attacked and burned the police station, in which there were hundreds of agents. Un'autocolonna of soldiers was attacked by two commandos with petrol bombs along the highway. Finally, the tanks had to intervene to clear the barricades. It was a time of madness and violence, with politics in football. The government parties (Christian Democrats, PSI and PRI) and the PCI revolt as hastily boiled fascist CGIL, CISL and UIL were against strikes. The state television did not report for days of protest. But the rebellion at the cry of 'Executioner Spring who' went on, political parties and trade unions were bypassed and disowned by their militants, and all-out general strike was proclaimed by an improvised 'action committee led by the unknown of the union Cisnal Ciccio Franco, former commander Perna partisan and industrialist Alfred's Café Demetrio Mauro.

The political right, until then distracted, took the leadership of the motions, and the crowd set fire to the streets with the face of the puppets and Riccardo Misasi Giacomo Mancini, bigwig of the DC and PSI, both Cosenza, held the minds of theft. The weakness of the political difficulties began in the mayor Piero Battaglia, DC and much loved leader, who for months had warned the government from penalizing to Reggio choices. The confusion of the political environment was huge in those months and, faced with unmanageable public order in Rome prevailed over the logic of a heavy hand. You risk even the resignation of the President of the Republic Saragat that, as showed the journalist Domenico Nunnari Rai in a reconstruction of those years, despite everything, he had hostility and prejudice against the insurgency, the former president had sensed that these movements were the real concerns of a land that felt marginalized and humiliated , but the fascist coup.

Protests and blockades ended in February 1971 when the government of Emilio Colombo pulled out of the hat in a sort of Cencelle version Calabria, Government and allocating capital to Catanzaro, Reggio Assembly, University at Cosenza. To appease the anger Reggina was promised to build a steel center in Gioia Tauro (50 km from Reggio) and a plant in Saline Liquichimica (on the outskirts of Reggio) to 10 thousand new jobs work. Columbus appeared. It was not what they had fought the Reggio, but people were tired and wanted to return to normal. And then the promise of many jobs, really, could not fall on deaf ears. The struggle for the capital employed at least had some more. In short, the city came out defeat, but with honor. On the other hand could not end like that, after eight months of siege, and the disturbing image of tanks on the city's waterfront.

But the big joke was lying in wait: the splitting of the regional offices will soon become a source of enormous waste of money unnecessarily traveling to a regional council, in the plain of Gioia will be destroyed 1,400 hectares of citrus orchards, and razed the village of Eranova to make way for the iron and steel center, but will never be built, and finally, the Liquichimica will never get on. So, zero new jobs. In Gioia Tauro, many years after the port will be built, but most of the area was deserted steel plant is today. Meanwhile, a generation of Reggio has had time to miss the train of development.

Source: Official South