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 It was widely used starting in the 1870s for street and large building lighting until it was superseded by the incandescent light in the early 20th century.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
S. Isadore Miner S. Isadore Miner S. Isadore Miner (September 25, 1863 – August 10, 1916), also known by the pen name Pauline Periwinkle, was an American journalist, poet, teacher, and feminist. She served as the first corresponding secretary of the Michigan Woman's Press Association and was a staff member of "Good Health", Battle Creek, Michigan. Using the pen name of "Pauline Periwinkle", Miner was the founder and editor of the "Woman's Century" page of "The Dallas Morning News". She was "one of the most widely-read columnists in the early twentieth century." Sara Isadore Sutherland was born in the township of Battle Creek,