Photovoltaics years in Northern Europe. The term "photovoltaic" comes from the Greek φῶς ("phōs") meaning "light", and from "volt", the unit of electro-motive force, the volt, which in turn comes from the last name of the Italian physicist Alessandro Volta, inventor of the battery (electrochemical cell). The term "photo-voltaic" has been in use in English since 1849. Photovoltaics are best known as a method for generating electric power by using solar cells to convert energy from the sun into a flow of electrons by the photovoltaic effect. Solar cells produce direct current electricity from sunlight which can be used to power
Alessandro Ghebreigziabiher Alessandro Ghebreigziabiher Alessandro Ghebreigziabiher (born May 20, 1968 in Naples, Italy) is an Italian writer, storyteller and stage actor. Ghebreigziabiher was born in Naples and currently lives in Rome. He is author of novels and short stories, a professional storyteller often involved in intercultural and anti-racist education with projects and festivals. His first book, Tramonto ("Sunset"), Lapis Edizioni, in 2003 was awarded by the International Youth Library with The White Ravens, a mention for books from around the world considered especially noteworthy. Since 2007 he is artistic director of the Italian Storytelling Festival Il dono della diversità ("The gift of