Lingua: INGLESE

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Vice President Kamala Harris has the backing of enough Democratic delegates to secure the party’s presidential nomination, with Democrats planning to hold a virtual roll call in the coming days to formalize her place atop the ticket ahead of the Democratic National Convention in August. The Democratic Party has quickly coalesced around Harris following President Joe Biden’s stunning decision Sunday to drop his reelection bid, but questions remain about whether she will significantly alter Middle East policy. The “uncommitted” movement of voters seeking to ... continua

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In 1980, historian Howard Zinn published his classic work, A People’s History of the United States. The book would go on to sell over a million copies and change the way many look at history in America. We begin today’s special with highlights from a production of Howard Zinn’s Voices of a People’s History of the United States, where Zinn introduced dramatic readings from history. We hear Alfre Woodard read the words of labor activist Mother Jones and Howard’s son Jeff Zinn read the words of an IWW poet and organizer Arturo Giovannitti.

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Il tempo e il clima sono sistemi caotici, nel senso che piccole variazioni possono condurre a grandi mutamenti. L’impredicibilità del tempo meteorologico e per estensione dell’evoluzione climatica dipende da quei dettagli (turbolenze dei venti, microfisica delle nuvole, correnti marine ecc.) che non siamo in grado di far entrare nei nostri modelli se non attraverso approssimazioni e parametrazioni. Le previsioni del tempo hanno conquistato circa un giorno ogni decennio a costo di straordinari potenziamenti delle capacità di calcolo. E lo stesso sviluppo ... continua

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