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 Salvio Alessandro Salvio Alessandro Salvio (c. 1570 – c. 1640) was an Italian chess player who is considered to be the unofficial world champion around the year 1600. He started an Italian chess academy in Naples, Italy, and wrote a book called "Trattato dell'Inventione et Arte Liberale del Gioco Degli Scacchi", which was published in Naples in 1604. He also wrote "Il Puttino" published in 1634. According to JH Saratt's translation, Il Puttino was first published in 1604, and republished in 1634. [1] SALUIO NAPOLITANO, DOTTOR ALESSANDRO: TRATTATO DELL’ INVENTIONE ET ARTE LIEBERALE DEL GIOCO DI SCACCHI, Diuiso in Di-scorsi, Sbaratti,