Mülheim an der Ruhr


Also found in: Dictionary, Wikipedia.

Mülheim an der Ruhr

(mül`hīm än dĕr ro͞or) or

Mülheim,

city (1994 pop. 177,175), North Rhine–Westphalia, W Germany, on the Ruhr River. It is an industrial center of the RuhrRuhr
, region, c.1,300 sq mi (3,370 sq km), North Rhine–Westphalia, W Germany; a principal manufacturing center of Germany. The Ruhr lies along, and north of, the Ruhr River (145 mi/233 km long), which rises in the hills of central Germany and flows generally west to the
..... Click the link for more information.
 district and a road and rail traffic hub. The city formerly produced mainly coal and steel, but in the mid-20th cent. its products were diversified to include machinery, electrical goods, and chemicals. At the city's noted institute for coal research, the Fischer-Tropsch process for coal liquification and the Ziegler process for the production of polyethylene plastics were discovered. Mülheim was chartered in 1808. There is a 12th-century castle in the city.