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Camperdown, KwaZulu-Natal
Camperdown is a settlement in Umgungundlovu District Municipality in the KwaZulu-Natal province of South Africa. It is approximately 60 km by road northwest of Durban and 20 km southeast of Pietermaritzburg. It was laid out in 1865 on the farm Camperdown, which was named to commemorate the victory of the British navy under Admiral Adam Duncan over the Dutch fleet under Admiral Jan Willem de Winter in October 1797. Economy In the early 1840s, John Vanderplank's ship, the ''Louisa'', arrived in Durban. It was named after his fiancée who refused to leave England to live as a married couple in Tasmania. He planted black wattle as a windbreak but they flourished to the point where they were trees rather than shrubs. After the discovery of tannic acid for use in the tanning Tanning may refer to: * Tanning (leather), treating animal skins to produce leather * Sun tanning, using the sun to darken pale skin ** Indoor tanning, the use of artificial light in place of the su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Africa
South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring countries of Namibia, Botswana, and Zimbabwe; and to the east and northeast by Mozambique and Eswatini. It also completely enclaves the country Lesotho. It is the southernmost country on the mainland of the Old World, and the second-most populous country located entirely south of the equator, after Tanzania. South Africa is a biodiversity hotspot, with unique biomes, plant and animal life. With over 60 million people, the country is the world's 24th-most populous nation and covers an area of . South Africa has three capital cities, with the executive, judicial and legislative branches of government based in Pretoria, Bloemfontein, and Cape Town respectively. The largest city is Johannesburg. About 80% of the population are Black Sou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telephone Numbers In South Africa
South Africa switched to a closed numbering system effective 16 January 2007. At that time, it became mandatory to dial the full 10-digit telephone number, including the zero in the three-digit area code, for local calls (e.g., 011 must be dialed from within Johannesburg). Area codes within the system are generally organized geographically. All telephone numbers are 9 digits long (but always prefixed by 0 for calls within South Africa), except for certain Telkom special services. When dialed from another country, the "0" is omitted and replaced with the appropriate international access code and the country code +27. Background History Numbers were allocated when South Africa had only four provinces, meaning that ranges are now split across the current nine provinces. South-West Africa (including Walvis Bay) was integrated into the South African numbering plan. However, the territory had already been allocated its own country code by the International Telecommunica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eric Rosenthal (historian)
Eric Rosenthal, (10 July 1905 – 1983) was a South African historian and writer. He was born in Newlands, Cape Town, Cape Colony. He studied as an attorney, later becoming a journalist and writer of many corporate histories. He was a member of the ''Three Wise Men'' on Springbok Radio's long-running quiz show, ''Test the Team''. The elder of two children born to Richard Rosenthal and Hedwig De Beer, he received his first education at Parktown Preparatory School in Johannesburg, and later St. John's College. He chose to follow a legal career and qualified as an attorney at the University of the Witwatersrand. Early opportunities as a journalist saw his virtual abandoning of law. He was competent at sketching and enlivened his books with explanatory drawings. Rosenthal was married to Jenny Bradley on 18 December 1934 in Westcliff, Johannesburg. They spent most of their married life in Fish Hoek near Cape Town. Rosenthal has been attributed with helping write the initi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tanning (leather)
Tanning is the process of treating skins and hides of animals to produce leather. A tannery is the place where the skins are processed. Tanning hide into leather involves a process which permanently alters the protein structure of skin, making it more durable and less susceptible to decomposition and coloring. Before tanning, the skins are dehaired, degreased, desalted and soaked in water over a period of six hours to two days. Historically this process was considered a noxious or "odoriferous trade" and relegated to the outskirts of town. Historically, tanning used tannin, an acidic chemical compound from which the tanning process draws its name, derived from the bark of certain trees. An alternative method, developed in the 1800s, is chrome tanning, where chromium salts are used instead of natural tannins. History The English word for tanning is from medieval Latin , derivative of ( oak bark), from French (tanbark), from old-Cornish (red oak). These terms are rel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tannic Acid
Tannic acid is a specific form of tannin, a type of polyphenol. Its weak acidity ( pKa around 6) is due to the numerous phenol groups in the structure. The chemical formula for commercial tannic acid is often given as C76H52O46, which corresponds with decagalloyl glucose, but in fact it is a mixture of polygalloyl glucoses or polygalloyl quinic acid esters with the number of galloyl moieties per molecule ranging from 2 up to 12 depending on the plant source used to extract the tannic acid. Commercial tannic acid is usually extracted from any of the following plant parts: Tara pods ('' Caesalpinia spinosa''), gallnuts from ''Rhus semialata'' or '' Quercus infectoria'' or Sicilian sumac leaves ('' Rhus coriaria''). According to the definitions provided in external references such as international pharmacopoeia, Food Chemicals Codex and FAO-WHO tannic acid monograph only tannins obtained from the above-mentioned plants can be considered as tannic acid. Sometimes extracts from che ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Windbreak
A windbreak (shelterbelt) is a planting usually made up of one or more rows of trees or shrubs planted in such a manner as to provide shelter from the wind and to protect soil from erosion. They are commonly planted in hedgerows around the edges of fields on farms. If designed properly, windbreaks around a home can reduce the cost of heating and cooling and save energy. Windbreaks are also planted to help keep snow from drifting onto roadways or yards. Farmers sometimes use windbreaks to keep snow drifts on farm land that will provide water when the snow melts in the spring. Other benefits include contributing to a microclimate around crops (with slightly less drying and chilling at night), providing habitat for wildlife, and, in some regions, providing wood if the trees are harvested. Windbreaks and intercropping can be combined in a farming practice referred to as alleycropping, or being deployed along riparian buffer stripes. Fields are planted in rows of different crops ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black Wattle
Black wattle is the common name for a number of species of trees that are native to Australia, as listed below: *'' Acacia aulacocarpa'' *''Acacia auriculiformis'', also known as Darwin Black Wattle or northern black wattle; *''Acacia concurrens'' *'' Acacia crassicarpa'' *'' Acacia decurrens'', also known as Early Black Wattle *'' Acacia hakeoides'', also known as Western Black Battle *'' Acacia implexa'' *'' Acacia leiocalyx'', also known as Early-flowering Black Wattle *'' Acacia mabellae'' *''Acacia mangium'' *''Acacia mearnsii'', also known as Late Black Wattle and the species of tree that is known to be, commercially, the most important tannin producer in Southern Africa *''Acacia melanoxylon'', a 'timber' tree that is commonly known as Australian Blackwood *'' Acacia neriifolia'' *'' Acacia plectocarpa'' *'' Acacia salicina'' *'' Acacia stenophylla'' It may also refer to ''Callicoma serratifolia ''Callicoma'' is a plant genus that contains just one species, ''Callic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tasmania
) , nickname = , image_map = Tasmania in Australia.svg , map_caption = Location of Tasmania in AustraliaCoordinates: , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , established_date = Colony of Tasmania , established_title2 = Federation , established_date2 = 1 January 1901 , named_for = Abel Tasman , demonym = , capital = Hobart , largest_city = capital , coordinates = , admin_center = 29 local government areas , admin_center_type = Administration , leader_title1 = Monarch , leader_name1 = Charles III , leader_title2 = Governor , leader_n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jan Willem De Winter
Jan Willem de Winter (French: Jean Guillaume de Winter, 23 March 1761 – 2 June 1812) was a Dutch admiral during the Napoleonic Wars. Biography Early life De Winter was born in Kampen and entered naval service at a young age. He distinguished himself by his zeal and courage, and by the time of the '' Patriottentijd'' in 1787 had reached the rank of lieutenant. The overthrow of the Patriot party forced him to flee to France. Naval career Here he threw himself heart and soul into the cause of the French Revolution, and took part under Charles François Dumouriez and Charles Pichegru in the campaigns of 1792 and 1793, and was soon promoted to the rank of ''brigadier-general''. In 1795, when Pichegru overran the Dutch Republic, De Winter returned with the French army to his native country. The new regime now utilized the experience he had gained as a naval officer by giving him the post of adjunct-general for the reorganization of the Batavian Navy. In 1796 he was app ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adam Duncan, 1st Viscount Duncan
Admiral Adam Duncan, 1st Viscount Duncan, KB (1 July 17314 August 1804) was a British admiral who defeated the Dutch fleet off Camperdown on 11 October 1797. This victory is considered one of the most significant actions in naval history. Life Adam was the second son of Alexander Duncan, Baron of Lundie, Angus, (d. May 1777) Provost of Dundee, and his wife (and first cousin once removed) Helen, daughter of John Haldane of Gleneagles. He was born at Dundee. In 1746, after receiving his education in Dundee, he entered the Royal Navy on board the sloop ''Trial'', under Captain Robert Haldane, with whom, in and afterwards in , he continued until the peace in 1748. In 1749 he was appointed to , then commissioned for service in the Mediterranean, by the Hon. Augustus Keppel (afterwards Viscount Keppel), with whom he was afterwards in on the coast of North America, and was confirmed in the rank of lieutenant on 10 January 1755. Seven Years War In August 1755 he followed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
