Alessandro Volta an early electric battery, which produced a steady electric current. Volta had determined that the most effective pair of dissimilar metals to produce electricity was zinc and copper. Initially he experimented with individual cells in series, each cell being a wine goblet filled with brine into which the two dissimilar electrodes were dipped. The voltaic pile replaced the goblets with cardboard soaked in brine. In announcing his discovery of the voltaic pile, Volta paid tribute to the influences of William Nicholson, Tiberius Cavallo, and Abraham Bennet. The battery made by Volta is credited as one of the first electrochemical cells.
2011 Volta a Portugal 2011 Volta a Portugal The 2011 Volta a Portugal is a men's road bicycle race held from 4 to 15 August 2011. It is the 73rd edition of the men's stage race to be held, which was established in 1927. A part of the 2010–2011 UCI Europe Tour, it is rated as a 2.1 event. 14 teams are invited to the 2011 Volta a Portugal, but the Italian team Acqua & Sapone remove its inscription in the Volta a Portugal, due to lack of cyclists to participate. 1 team is from the UCI ProTeams, 3 are UCI Professional Continental Teams