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 It was widely used starting in the 1870s for street and large building lighting until it was superseded by the incandescent light in the early 20th century.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 in the schools from which she graduated. She followed this vocation until her marriage in 1844 to J. Weston Miner. Her husband being connected with the "Battle Creek Review" and Herald publishing house, Miner was engaged as a proof-reader, and finally as a writer, editing a large share of the work on a series of children's books issued from that office. She had always shown a predilection for writing both verse and prose. When teaching, she sometimes wrote stories or verses to reprove faults among her pupils that she preferred to correct in an impersonal way, and folding her pages