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The Orapa diamond mine is the world's largest diamond mine by area. The mine is located in Orapa, a town in the Central District of Botswana about 240 km (150 mi) west of the city of Francistown. Orapa ("resting place for lions") is owned by Debswana, a partnership between the De Beers company and the government of Botswana. [1]
Polymetallic nodules on the deep seabed in the CCZ Example of manganese nodule that can be found on the sea floor. Polymetallic nodules are found at depths of 4–6 km (2.5–3.7 mi) in all major oceans, but also in shallow waters like the Baltic Sea and in freshwater lakes.
The Cullinan Diamond is the largest gem-quality rough diamond ever found, [2] weighing 3,106 carats (621.20 g), discovered at the Premier No.2 mine in Cullinan, South Africa, on 26 January 1905. It was named after Thomas Cullinan , the owner of the mine.
The English word beaver comes from the Old English word beofor or befor and is connected to the German word biber and the Dutch word bever.The ultimate origin of the word is an Indo-European root for ' brown '. [2]
But the placer deposits worked in the early years were quickly exhausted, and production crashed. Hardrock mining (in California called quartz mining) began in 1849, and placer mining by hydraulic mining began in 1852. Despite the new mining methods, by 1865 production was 867,000 troy ounces (27,000 kg), less than one-quarter of peak production.
South Korea introduced what was then considered the world's largest and best-organised screening programme, isolating infected people, and tracing and quarantining contacts. [309] Screening methods included mandatory self-reporting by new international arrivals through mobile application, [ 310 ] combined with drive-through testing, [ 311 ] and ...
Wii Sports was the decade's best-selling console video game, while New Super Mario Bros. was the decade's best-selling portable video game. J. K. Rowling was the best-selling author in the decade overall thanks to the Harry Potter book series, although she did not pen the best-selling individual book, being second to The Da Vinci Code. [7]