Cobalt vs Nashville

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Cobalt is a chemical element with the symbol Co and atomic number 27. Like nickel, cobalt is found in the Earth's crust only in chemically combined form, save for small deposits found in alloys of natural meteoric iron. The free element, produced by reductive smelting, is a hard, lustrous, silver-gray metal. Cobalt-based blue pigments (cobalt blue) have been used since ancient times for jewelry and paints, and to impart a distinctive blue tint to glass, but the color was later thought to be due to the known metal bismuth. Miners had long used the name kobold ore (German for goblin ore) for some of the blue-pigment-producing minerals; they were so named because they were poor in known metals, and gave poisonous arsenic-containing fumes when smelted. In 1735, such ores were found to be reducible to a new metal (the first discovered since ancient times), and this was ultimately named for the kobold. Today, some cobalt is produced specifically from one of a number of metallic-lustered ores, such as cobaltite (CoAsS). The element is, however, more usually produced as a by-product of copper and nickel mining.

The copper belt in the Democratic Republic of the Congo (DRC) and Zambia yields most of the global cobalt production. World production in 2016 was 116,000 metric tons (114,000 long tons; 128,000 short tons) (according to Natural Resources Canada), and the DRC alone accounted for more than 50%.Cobalt is primarily used in lithium-ion batteries, and in the manufacture of magnetic, wear-resistant and high-strength alloys. The compounds cobalt silicate and cobalt(II) aluminate (CoAl2O4, cobalt blue) give a distinctive deep blue color to glass, ceramics, inks, paints and varnishes. Cobalt occurs naturally as only one stable isotope, cobalt-59. Cobalt-60 is a commercially important radioisotope, used as a radioactive tracer and for the production of high-energy gamma rays. Cobalt is the active center of a group of coenzymes called cobalamins. Vitamin B12, the best-known example of the type, is an essential vitamin for all animals. Cobalt in inorganic form is also a micronutrient for bacteria, algae, and fungi.

Source: Wikipedia

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Nashville is the capital and most populous city of the U.S. state of Tennessee. The city is the county seat of Davidson County and is located on the Cumberland River. It is the 23rd most-populous city in the United States. Named for Francis Nash, a general of the Continental Army during the American Revolutionary War, the city was founded in 1779. The city grew quickly due to its strategic location as a port on the Cumberland River and, in the 19th century, a railroad center. Nashville seceded with Tennessee during the American Civil War; in 1862 it was the first state capital in the Confederacy to fall to Union troops. After the war, the city reclaimed its position and developed a manufacturing base. Since 1963, Nashville has had a consolidated city-county government, which includes six smaller municipalities in a two-tier system. The city is governed by a mayor, a vice-mayor, and a 40-member metropolitan council; 35 of the members are elected from single-member districts, while the other five are elected at-large.

Reflecting the city's position in state government, Nashville is home to the Tennessee Supreme Court's courthouse for Middle Tennessee, one of the state's three divisions. A major center for the music industry, especially country music, Nashville is commonly known as "Music City". It is also home to numerous colleges and universities, including Tennessee State University, Vanderbilt University, Belmont University, Fisk University, Trevecca Nazarene University, and Lipscomb University, and is sometimes referred to as "Athens of the South" due to the large number of educational institutions. Nashville is also a major center for the healthcare, publishing, private prison, banking, automotive, and transportation industries. Entities with headquarters in the city include Asurion, Bridgestone Americas, Captain D's, CoreCivic, Dollar General, Hospital Corporation of America, LifeWay Christian Resources, Logan's Roadhouse, and Ryman Hospitality Properties.

Source: Wikipedia