A History of Saint Anthony Falls - Earth Sciences
In 1823, Fort Snelling built the first flour mill at the falls. Thirty years later, the first commercial mill opened. By 1876, eighteen flour mills were operating on the west side alone and towering amongst them was the monstrous Washburn A Mill, which exploded and killed eighteen men in 1878.History of paper - Wikipedia,The first papermaking process was documented in China during the Eastern Han period (25–220 CE), traditionally attributed to the court official Cai Lun. During the 8th century, Chinese papermaking spread to the Islamic world, where pulp mills and paper mills were used for papermaking and money making. By the 11th century, papermaking was,Rolling mill | Article about rolling mill by The Free,,The first flying shears were designed by W. Edwards and came into use in 1892 in the USA. In 1897 an electric motor was successfully used to drive a rolling mill in Germany. In 1906 a rolling mill with a reversible electric motor was put into service in Třinec, in what is now Czechoslovakia.