Electrical engineering credited with establishing the term "electricity". He also designed the versorium: a device that detects the presence of statically charged objects. In 1762 Swedish professor Johan Carl Wilcke invented a device later named electrophorus that produced a static electric charge. By 1800 Alessandro Volta had developed the voltaic pile, a forerunner of the electric battery In the 19th century, research into the subject started to intensify. Notable developments in this century include the work of Georg Ohm, who in 1827 quantified the relationship between the electric current and potential difference in a conductor, of Michael Faraday (the discoverer of electromagnetic
Battery electric multiple unit an expected life of seven years for the batteries. The train is due to run on the national network in summer 2018. In 2017, Vivarail battery trains were being considered for use on the Valley Lines network in South Wales. The trains would be battery powered, capable of being recharged via 25 kV OHLE. The Edison-Beach battery railcar was developed by Thomas Edison and Ralph H. Beach. The latter headed the "Railway Storage Battery Car Company" and the "Electric Car & Locomotive Corp". Car No. 105 of the Alaska Railroad was an Edison-Beach car, and examples operated on the Central