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Forging a nail. Valašské muzeum v přírodě, Czech Republic. Forging is one of the oldest known metalworking processes. [1] Traditionally, forging was performed by a smith using hammer and anvil, though introducing water power to the production and working of iron in the 12th century allowed the use of large trip hammers or power hammers that increased the amount and size of iron that could ...
Between 1870 and 1900, Chicago grew from a city of 299,000 to nearly 1.7 million and was the fastest-growing city in world history. Chicago's flourishing economy attracted huge numbers of new immigrants from Eastern and Central Europe, especially Jews, Poles, and Italians, along with many smaller groups.
Contraction: 1979–1984. US production of iron and steel peaked in 1973, when the US industry produced a combined total of 229 million metric tons of iron and steel. But US iron and steel production dropped drastically during the recession of the late 1970s and early 1980s.
May 11, 1906. Cost. $385,000 [1] Height. 80.4 metres (264 ft) Known for. World's first Ferris Wheel. The original Ferris Wheel, sometimes also referred to as the Chicago Wheel, [2][3] was designed and built by George Washington Gale Ferris Jr. as the centerpiece of the Midway at the 1893 World's Columbian Exposition in Chicago, Illinois.
The history of the anchor dates back millennia. The most ancient anchors were probably rocks and many rock anchors have been discovered originating from at least the Bronze Age. [1] Many modern moorings remain reliant upon a large rock as the primary element of their design. However, using pure mass to resist the forces of a storm only works ...
A. Finkl & Sons Steel. Coordinates: 41.7248°N 87.5898°W. Lincoln Park location in 2011 (now demolished) A. Finkl & Sons Steel or Finkl Steel is a steel mill that operates in the South Side of Chicago (previously the Near North Side) [1] and has been in business since 1879 [2] or 1880. [3][4]
Steel is an alloy composed of between 0.2 and 2.0 percent carbon, with the balance being iron. From prehistory through the creation of the blast furnace, iron was produced from iron ore as wrought iron, 99.82–100 percent Fe, and the process of making steel involved adding carbon to iron, usually in a serendipitous manner, in the forge, or via the cementation process.
By fall 1890, Bethlehem Iron was delivering gun forging to the U.S. Navy and was completing facilities to provide armor plating. [3] During the 1893 Chicago World's Fair, Bethlehem Steel provided the iron used in the creation of a 45.5 [4]-foot steel axle to support the world's first Ferris wheel, a 264-foot (80 m