Sharjah vs Cobalt

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Sharjah (Arabic: ٱلشَّارقَة‎ aš-Šāriqah; Gulf Arabic: aš-šārja) is the third largest and third most populous city in the United Arab Emirates, forming part of the Dubai-Sharjah-Ajman metropolitan area. The emirate of Sharjah borders with Dubai to the south, Ajman and Umm Al Quwain to the north and Ras Al Khaimah to the east. It is the only emirate that overlooks the coastline on the Persian Gulf to the west and the Gulf of Oman (Indian Ocean) to the East, with the eastern Sharjah coastal towns of Kalba and Khor Fakkan. Sharjah is the capital of the emirate of the same name. Sharjah shares legal, political, military and economic functions with the other emirates of the UAE within a federal framework, although each emirate has jurisdiction over some functions such as civil law enforcement and provision and upkeep of local facilities. Sharjah has been ruled by the Al Qasimi dynasty since the 18th century.

The city is a centre for culture and industry, and alone contributes 7.4% of the GDP of the United Arab Emirates. The city covers an approximate area of 235 km² and has a population of over 800,000 (2008). The sale or consumption of alcoholic beverages is prohibited in the emirate of Sharjah without possession of an alcohol licence and alcohol is not served in Sharjah hotels, restaurants or other outlets due to the Muslim majority in the area. This has helped Sharjah increase the number of Islamic tourists who visit the country. Sharjah has been officially named as a WHO healthy city. The 2016 edition of QS Best Student Cities ranked Sharjah as the 68th best city in the world to be a university student. Sharjah is regarded as the cultural capital of the UAE, and was the Islamic culture capital in 2014. Sharjah was named World Book Capital for 2019 by UNESCO.

Source: Wikipedia

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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