Arc lamp Arc lamp An arc lamp or arc light is a lamp that produces light by an electric arc (also called a voltaic arc). The carbon arc light, which consists of an arc between carbon electrodes in air, invented by Humphry Davy in the first decade of the 1800s, was the first practical electric light. It was widely used starting in the 1870s for street and large building lighting until it was superseded by the incandescent light in the early 20th century. It continued in use in more specialized applications where a high intensity point light source was needed, such as
History of South Shields in Victorian times, drawing immigrants from far and wide. In South Shields the population soared from approximately 12,000 in 1801 to 75,000 by the late 1860s. Collieries in South Shields included: Coal mining was very hazardous. Shafts could collapse at any time and before the safety lamp was invented in 1815 naked flames carried by miners to light their way could ignite gas underground causing explosions and many deaths. Some mines even had shafts that stretched several miles out under the sea. Overcrowding in the town made sanitation a problem, partly solved by Cleadon Water Pumping Station (a large tower