The first American test of electric arc lighting for street lamps was made in 1879, in Cleveland. The first U.S. city to purchase and install electric street lamps was Wabash, Indiana, in 1880 ...
Invented by Humphrey Davy in the early 19th century, arc lamps were developed in France until 1878 when R E B Crompton started to manufacture an improved version at his Arc Works in Chelmsford.
THE uniform intrinsic brilliancy and compactness of the tungsten arc lamp have led to its extensive application as an illuminant for photomicrography. It does not appear to be generally recognised ...
Invented by Humphrey Davy in the early 19th century, arc lamps were developed in France until 1878 when R E B Crompton started to manufacture an improved version at his Arc Works in Chelmsford.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results