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2. Inco Superstack - Wikipedia

   en.wikipedia.org/wiki/Inco_Superstack

   As of 2023, it is the 51st-tallest freestanding structure in the world. The Superstack is located on top of the largest nickel smelting operation in the world at Vale's Copper Cliff processing facility in the city of Greater Sudbury. In 2018, Vale announced that the stack would be decommissioned and dismantled, beginning in 2020. [2]

3. Nickel–iron battery - Wikipedia

   en.wikipedia.org/wiki/Nickel–iron_battery

   Thomas Edison in 1910 with a nickel-iron cell from his own production line. The nickel–iron battery (NiFe battery) is a rechargeable battery having nickel(III) oxide-hydroxide positive plates and iron negative plates, with an electrolyte of potassium hydroxide. The active materials are held in nickel-plated steel tubes or perforated pockets.

4. SAE steel grades - Wikipedia

   en.wikipedia.org/wiki/SAE_steel_grades

   The SAE steel grades system is a standard alloy numbering system (SAE J1086 – Numbering Metals and Alloys) for steel grades maintained by SAE International.. In the 1930s and 1940s, the American Iron and Steel Institute (AISI) and SAE were both involved in efforts to standardize such a numbering system for steels.

5. Industry City - Wikipedia

   en.wikipedia.org/wiki/Industry_City

   The blast resulted in 10 deaths, including that of a man standing 1,000 feet (300 m) away; 274 injuries; and "major destruction" in a 1,000-foot (300 m) radius, including broken windows in buildings up to 1 mile (1.6 km) away. People reported hearing the explosion as far as 35 miles (56 km) away.

6. Gas holder - Wikipedia

   en.wikipedia.org/wiki/Gas_holder

   30,000 m 3 (1,100,000 cu ft) blast furnace gas holder at Rautaruukki Steel in Finland. A gas holder or gasholder, also known as a gasometer, is a large container in which natural gas or town gas (coal gas or formerly also water gas) is stored near atmospheric pressure at ambient temperatures. The volume of the container follows the quantity of ...

7. Nickel–cadmium battery - Wikipedia

   en.wikipedia.org/wiki/Nickel–cadmium_battery

   In 1932, active materials were deposited inside a porous nickel-plated electrode and fifteen years later work began on a sealed nickel–cadmium battery. The first production in the United States began in 1946. Up to this point, the batteries were "pocket type," constructed of nickel-plated steel pockets containing nickel and cadmium active ...