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John Williamson (geologist)
John Thoburn Williamson (1907 –1958) was a Canadian geologist famous for establishing the Williamson diamond mine in present-day Tanzania. Early life Williamson was born in 1907 in Montfort, Quebec. He attended McGill University, where he initially intended to study law, but became interested in geology after accompanying a friend on a summer field expedition to Labrador. He subsequently earned bachelor's degree, bachelor's, master's degree, master's, and Ph.D. degrees in geology, completing his studies between 1928 and 1933."Three legends to join the Canadian Mining Hall of Fame," ''The Northern Miner'', V. 96, No. 40, November 22–28, 2010, 5. Williamson mine After completing his studies, Williamson travelled to South Africa with one of his professors, where he eventually took a job with Loangwa Concessions, a De Beers subsidiary in what was then Northern Rhodesia (now Zambia). He then moved on to work at the Mabuki diamond mine, which he purchased from the owners in 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Thoburn Williamson Portrait 1957
John is a common English name and surname: * John (given name) * John (surname) John may also refer to: New Testament Works * Gospel of John, a title often shortened to John * First Epistle of John, often shortened to 1 John * Second Epistle of John, often shortened to 2 John * Third Epistle of John, often shortened to 3 John People * John the Baptist (died ), regarded as a prophet and the forerunner of Jesus Christ * John the Apostle (died ), one of the twelve apostles of Jesus Christ * John the Evangelist, assigned author of the Fourth Gospel, once identified with the Apostle * John of Patmos, also known as John the Divine or John the Revelator, the author of the Book of Revelation, once identified with the Apostle * John the Presbyter, a figure either identified with or distinguished from the Apostle, the Evangelist and John of Patmos Other people with the given name Religious figures * John, father of Andrew the Apostle and Saint Peter * Pope John (disambigu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mining
Mining is the Resource extraction, extraction of valuable geological materials and minerals from the surface of the Earth. Mining is required to obtain most materials that cannot be grown through agriculture, agricultural processes, or feasibly created Chemical synthesis, artificially in a laboratory or factory. Ores recovered by mining include Metal#Extraction, metals, coal, oil shale, gemstones, limestone, chalk mining, chalk, dimension stone, rock salt, potash, gravel, and clay. The ore must be a rock or mineral that contains valuable constituent, can be extracted or mined and sold for profit. Mining in a wider sense includes extraction of any non-renewable resource such as petroleum, natural gas, or even fossil water, water. Modern mining processes involve prospecting for ore bodies, analysis of the profit potential of a proposed mine, extraction of the desired materials, and final mine reclamation, reclamation or restoration of the land after the mine is closed. Mining ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tanganyika (1961–1964)
Tanganyika ( ; ) was a sovereign state, comprising the mainland part of present-day Tanzania, that existed from 1961 until 1964. It first gained independence from the United Kingdom on 9 December 1961 as a Commonwealth realm states headed by Queen Elizabeth II, headed by Queen Elizabeth II before becoming a republic within the Commonwealth of Nations a year later. After signing the Articles of Union on 22 April 1964 and passing an Act of Union on 25 April, Tanganyika officially joined with the People's Republic of Zanzibar to form the United Republic of Tanganyika and Zanzibar on Union Day (Tanzania), Union Day, 26 April 1964. The new state changed its name to the United Republic of Tanzania within a year. History Tanganyika originally consisted of the Tanganyika Territory—the British share of German East Africa—which the British took under a League of Nations mandate in 1922, and which was later transformed into a United Nations Trust Territory after ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pound Sterling
Sterling (symbol: £; currency code: GBP) is the currency of the United Kingdom and nine of its associated territories. The pound is the main unit of sterling, and the word '' pound'' is also used to refer to the British currency generally, often qualified in international contexts as the British pound or the pound sterling. Sterling is the world's oldest currency in continuous use since its inception. In 2022, it was the fourth-most-traded currency in the foreign exchange market, after the United States dollar, the euro, and the Japanese yen. Together with those three currencies and the renminbi, it forms the basket of currencies that calculate the value of IMF special drawing rights. As of late 2022, sterling is also the fourth most-held reserve currency in global reserves. The Bank of England is the central bank for sterling, issuing its own banknotes and regulating issuance of banknotes by private banks in Scotland and Northern Ireland. Sterling banknotes issu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cartier (jeweler)
Cartier International SNC, or simply Cartier ( , ), is a French luxury-goods conglomerate that designs, manufactures, distributes, and sells jewelry, watches, leather goods, sunglasses and eyeglasses. Founded by Louis-François Cartier (1819–1904) in Paris in 1847, the company remained under family control until 1964. The company is headquartered in Paris, France, and is currently a subsidiary of the Swiss Richemont Group, a global luxury giant. Cartier operates more than 200 stores in 125 countries, with three Temples (Historical Maisons) in Paris, London, and New York City. Cartier is regarded as one of the most prestigious luxury-goods manufacturers. ''Forbes'' ranked Cartier on its Most Valuable Brands list as 56th in 2020, with a brand value of $12.2 B and revenue of $6.2 B. Cartier has a long history of sales to royalty. King Edward VII referred to Cartier as "the jeweller of kings and the king of jewellers". For his coronation in 1902, Edward VII ordered 27 tiaras an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prince Philip, Duke Of Edinburgh
Prince Philip, Duke of Edinburgh (born Prince Philip of Greece and Denmark, later Philip Mountbatten; 10 June 19219 April 2021), was the husband of Queen Elizabeth II. As such, he was the consort of the British monarch from his wife's accession on 6 February 1952 until Death and funeral of Prince Philip, Duke of Edinburgh, his death in 2021, making him the longest-serving royal consort in history. Philip was born in Greece into the Greek royal family, Greek and Danish royal family, Danish royal families; his family was exiled from the country when he was eighteen months old. After being educated in France, Germany, and the United Kingdom, he joined the Royal Navy in 1939, when he was 18 years old. In July 1939, Philip began corresponding with the 13-year-old Princess Elizabeth, the elder daughter and heir presumptive of King George VI. During the Second World War, he served with distinction in the British Mediterranean Fleet, Mediterranean and Britis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elizabeth II
Elizabeth II (Elizabeth Alexandra Mary; 21 April 19268 September 2022) was Queen of the United Kingdom and other Commonwealth realms from 6 February 1952 until Death and state funeral of Elizabeth II, her death in 2022. She had been queen regnant of List of sovereign states headed by Elizabeth II, 32 sovereign states during her lifetime and was the monarch of 15 realms at her death. Her reign of 70 years and 214 days is the List of monarchs in Britain by length of reign, longest of any British monarch, the List of longest-reigning monarchs, second-longest of any sovereign state, and the List of female monarchs, longest of any queen regnant in history. Elizabeth was born in Mayfair, London, during the reign of her paternal grandfather, King George V. She was the first child of the Duke and Duchess of York (later King George VI and Queen Elizabeth The Queen Mother). Her father acceded to the throne in 1936 upon Abdication of Edward VIII, the abdic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Williamson Pink Diamond
The Williamson pink diamond is a flawless pink diamond set in a brooch that is part of the Royal Collection. History The rough diamond was discovered at the Williamson diamond mine in Tanganyika in October 1947. A month later, the owner of the mine, Canadian geologist John Williamson, gave the uncut stone to Princess Elizabeth as a wedding present. In 1948, the princess and her grandmother, Queen Mary, visited the London diamond cutters Briefel and Lemer to watch the diamond being cut into a round brilliant. In 1952, the pink diamond became the main feature of a platinum brooch designed by Frederick Mew of Cartier, at the centre of a jonquil-shaped flower with five petals and two leaves of noisette-cut diamonds and a stalk of baguette cut diamonds. In 2022, a similar pink diamond from the same mine but half the size (11.15 carats) was sold at an auction for $57.7 million. See also * List of diamonds * Jewels of Elizabeth II Elizabeth II owned a historic col ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carat (unit)
The carat (ct) is a unit of mass equal to , which is used for measuring gemstones and pearls. The current definition, sometimes known as the metric carat, was adopted in 1907 at the Fourth General Conference on Weights and Measures, and soon afterwards in many countries around the world. The carat is divisible into 100 ''points'' of 2 mg. Other subdivisions, and slightly different mass values, have been used in the past in different locations. In terms of diamonds, a paragon is a flawless stone of at least 100 carats (20 g). The ANSI X.12 EDI standard abbreviation for the carat is CD. Etymology First attested in English in the mid-15th century, the word ''carat'' comes from Italian ''carato'', which comes from Arabic (''qīrāṭ''; قيراط), in turn borrowed from Greek ''kerátion'' κεράτιον ' carob seed', a diminutive of ''keras'' 'horn'. It was a unit of weight, equal to 1/1728 (1/12) of a pound (see Mina (unit)). History Carob seeds have bee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Diamond Mines
There are a limited number of commercially available diamond mining, mines currently operating in the world, with the 50 largest mines accounting for approximately 90% of global supply. Diamonds are also mined alluvium, alluvially over disperse areas, where diamonds have been erosion, eroded out of the ground, deposited, and concentrated by water or weather action. There is also at least one example of a heritage diamond mine (Crater of Diamonds State Park). Africa Angola *Catoca diamond mine *Fucauma diamond mine *Luarica diamond mine Botswana *Damtshaa diamond mine *Jwaneng diamond mine *Letlhakane diamond mine *Orapa diamond mine *Karowe diamond mine *Lerala diamond mine South Africa *Baken diamond mine *Premier Mine, Cullinan diamond mine (previously "Premier mine") *Finsch diamond mine *Kimberley, Northern Cape *Koffiefontein mine *Venetia Diamond Mine, Venetia diamond mine *Royal Thulare Mine Others *Kao diamond mine, Lesotho *Baba Diamond Fields, Zimbabwe *Marange ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cancer
Cancer is a group of diseases involving Cell growth#Disorders, abnormal cell growth with the potential to Invasion (cancer), invade or Metastasis, spread to other parts of the body. These contrast with benign tumors, which do not spread. Possible Signs and symptoms of cancer, signs and symptoms include a lump, abnormal bleeding, prolonged cough, unexplained weight loss, and a change in defecation, bowel movements. While these symptoms may indicate cancer, they can also have other causes. List of cancer types, Over 100 types of cancers affect humans. Tobacco use is the cause of about 22% of cancer deaths. Another 10% are due to obesity, poor Diet (nutrition), diet, sedentary lifestyle, lack of physical activity or Alcohol abuse, excessive alcohol consumption. Other factors include certain infections, exposure to ionizing radiation, and environmental pollutants. infectious causes of cancer, Infection with specific viruses, bacteria and parasites is an environmental factor cau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The National Archives UK - CO 1069-157-23
''The'' is a grammatical article in English, denoting nouns that are already or about to be mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the most frequently used word in the English language; studies and analyses of texts have found it to account for seven percent of all printed English-language words. It is derived from gendered articles in Old English which combined in Middle English and now has a single form used with nouns of any gender. The word can be used with both singular and plural nouns, and with a noun that starts with any letter. This is different from many other languages, which have different forms of the definite article for different genders or numbers. Pronunciation In most dialects, "the" is pronounced as (with the voiced dental fricative followed by a schwa) when followed by a consonant sound, and as (homophone of the archaic pronoun ''thee'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
