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Alberto Coto García
Alberto Coto García (born May 20, 1970) is a Spanish mental calculator. He was the world champion in mental calculation from 2008 to 2010. Professionally he is a financial adviser and accountant. He has demonstrated his skills and has appeared on some TV shows and news. In recent years he has carried out demonstrations and conferences. Beginnings When Alberto was six years old he demonstrated calculation skills counting the final score while playing cards. Over the years, due to his interest on calculation and brain strengthening, he has developed his capacity, becoming the fastest human calculator in the world, certificated by some Guinness Records and his titles of World Champion. Books Alberto has written three books: # "La aventura del cálculo" (2003) (The adventure of calculation) # "Entrenamiento mental" (2006, EDAF) (Mental training) # "Fortalece tu mente" (2007, EDAF) (Strengthen your mind) His books reached best seller in Spain and in Latin America. World Ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abacus
An abacus ( abaci or abacuses), also called a counting frame, is a hand-operated calculating tool which was used from ancient times in the ancient Near East, Europe, China, and Russia, until the adoption of the Hindu–Arabic numeral system. An abacus consists of a two-dimensional array of Sliding (motion), slidable beads (or similar objects). In their earliest designs, the beads could be loose on a flat surface or sliding in grooves. Later the beads were made to slide on rods and built into a frame, allowing faster manipulation. Each rod typically represents one Numerical digit, digit of a multi-digit number laid out using a positional numeral system such as base ten (though some cultures used different numerical bases). Roman Empire, Roman and East Asian abacuses use a system resembling bi-quinary coded decimal, with a top deck (containing one or two beads) representing fives and a bottom deck (containing four or five beads) representing ones. Natural numbers are normally use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Langreo
Langreo () or Llangréu () ( Asturian) is a municipality and town in northern Spain, in Asturias. It is the 4th largest town of Asturias with 43,000 inhabitants. Langreo is located in the centre of Asturias, approximately south-east of Oviedo. It was an important mining and metallurgical center. History According to a legend Langreo was the place where the Moorish governor Munuza was killed while trying to flee from Asturias at the beginning of the Reconquest. Langreo was settled by the Romans, who built a large Roman bridge that is not conserved today. In the past, it was one of the most important mining and metallurgical points of Spain since the 18th century, and it was also well known because of workers struggles and its cultural life. The 3rd railway to be built in the Iberian Peninsula was the FC of Langreo. The Factory of La Felguera was one of the most important iron works centers in Spain, and the Langreo mines was well known in whole the country. Because of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mental Calculator
Mental calculation (also known as Mind, mental computation) consists of arithmetical calculations made by the mind, within the human brain, brain, with no help from any supplies (such as pencil and paper) or devices such as a calculator. People may use mental calculation when computing tools are not available, when it is faster than other means of calculation (such as conventional educational institution methods), or even in Mental calculator#Champion mental calculators, a competitive context. Mental calculation often involves the use of specific techniques devised for specific types of problems. Many of these techniques take advantage of or rely on the decimal numeral system. Capacity of short-term memory is a necessary factor for the successful acquisition of a calculation, specifically perhaps, the phonological loop, in the context of addition calculations (only). Cognitive flexibility, Mental flexibleness contributes to the probability of successful completion of mental effort ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guinness World Records
''Guinness World Records'', known from its inception in 1955 until 1999 as ''The Guinness Book of Records'' and in previous United States editions as ''The Guinness Book of World Records'', is a British reference book published annually, listing world records both of human achievements and the extremes of the natural world. Sir Hugh Beaver created the concept, and twin brothers Norris and Ross McWhirter co-founded the book in London in August 1955. The first edition topped the bestseller list in the United Kingdom by Christmas 1955. The following year the book was launched internationally, and as of the 2025 edition, it is now in its 70th year of publication, published in 100 countries and 40 languages, and maintains over 53,000 records in its database. The international franchise has extended beyond print to include television series and museums. The popularity of the franchise has resulted in ''Guinness World Records'' becoming the primary international source for cata ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mental Calculation World Cup
The Mental Calculation World Cup (German: Weltmeisterschaften im Kopfrechnen, or World Championship in Mental Calculation) is an international competition for mental calculators, held every two years in Germany. Mental Calculation World Cup 2004 The first Mental Calculation World Cup was held in Annaberg-Buchholz, Germany on 30 October 2004. There were 17 participants from 10 countries. The World Cup involved the following contests (and two surprise tasks): *Adding ten 10-digit numbers, 10 tasks in 10 minutes **Winner: Alberto Coto (Spain); 10 correct results; 5:50 minutes, world record *Multiplying two 8-digit numbers, 10 tasks in 15 minutes **Winner: Alberto Coto (Spain), 8 correct results *Calendar Calculations, two series one minute each, dates from the years 1600–2100 **Winner: Matthias Kesselschläger (Germany), 33 correct results, world record *Square Root from 6-digit numbers, 10 tasks in 15 minutes **Winner: Jan van Koningsveld (Germany) In the overall ranking the first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Annaberg-Buchholz
Annaberg-Buchholz () is a town in Saxony, in eastern Germany. Lying in the Ore Mountains, it is the capital of the district of Erzgebirgskreis. Geography The town is located in the Ore Mountains, at the side of the ''Pöhlberg'' ( above sea level). History The previously heavily forested upper Ore Mountains were settled in the 12th and 13th centuries by Franconian farmers. Frohnau, Geyersdorf, and Kleinrückerswalde—all now part of present-day town—have all been attested since 1397. In 1491, silver deposits were discovered in the area, and Annaberg soon developed under the patronage of George, Duke of Saxony and Barbara Jagiellon. George and Barbara founded the landmark St. Anne's Church, Annaberg-Buchholz, St. Anne's Church and a Franciscan monastery (dissolved in 1539), and Barbara donated a relic of Saint Anne to the church, which thus became a regional pilgrimage destination. Barbara Uthmann introduced braid and lace-making to the town in 1561 and the craft was fur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Giessen
Giessen, spelled in German (), is a town in the Germany, German States of Germany, state () of Hesse, capital of both the Giessen (district), district of Giessen and the Giessen (region), administrative region of Giessen. The population is approximately 90,000, with roughly 37,000 university students. The name comes from ''Giezzen'', as it was first referred to in 1197, which refers to the position of the town between several rivers, lakes and streams. The largest river in Giessen is the Lahn, which divides the town in two parts (west and east), roughly north of Frankfurt am Main. Giessen is also home to the University of Giessen. In 1969, the town hosted the ninth ''Hessentag'' state festival. History Giessen came into being as a moated castle in 1152 built by Count Wilhelm von Gleiberg, although the history of the community in the northeast and in today's suburb called "Wieseck" dates back to 775. The town became part of Hesse-Marburg in 1567, passing to Landgraviate of Hess ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leipzig
Leipzig (, ; ; Upper Saxon: ; ) is the most populous city in the States of Germany, German state of Saxony. The city has a population of 628,718 inhabitants as of 2023. It is the List of cities in Germany by population, eighth-largest city in Germany and is part of the Central German Metropolitan Region. The name of the city is usually interpreted as a Slavic term meaning ''place of linden trees'', in line with many other Slavic placenames in the region. Leipzig is located about southwest of Berlin, in the southernmost part of the North German Plain (the Leipzig Bay), at the confluence of the White Elster and its tributaries Pleiße and Parthe. The Leipzig Riverside Forest, Europe's largest intra-city riparian forest, has developed along these rivers. Leipzig is at the centre of Neuseenland (''new lake district''). This district has Bodies of water in Leipzig, several artificial lakes created from former lignite Open-pit_mining, open-pit mines. Leipzig has been a trade city s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Istanbul
Istanbul is the List of largest cities and towns in Turkey, largest city in Turkey, constituting the country's economic, cultural, and historical heart. With Demographics of Istanbul, a population over , it is home to 18% of the Demographics of Turkey, population of Turkey. Istanbul is among the List of European cities by population within city limits, largest cities in Europe and List of cities proper by population, in the world by population. It is a city on two continents; about two-thirds of its population live in Europe and the rest in Asia. Istanbul straddles the Bosphorus—one of the world's busiest waterways—in northwestern Turkey, between the Sea of Marmara and the Black Sea. Its area of is coterminous with Istanbul Province. Istanbul's climate is Mediterranean climate, Mediterranean. The city now known as Istanbul developed to become one of the most significant cities in history. Byzantium was founded on the Sarayburnu promontory by Greek colonisation, Greek col ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magdeburg
Magdeburg (; ) is the Capital city, capital of the Germany, German States of Germany, state Saxony-Anhalt. The city is on the Elbe river. Otto I, Holy Roman Emperor, Otto I, the first Holy Roman Emperor and founder of the Archbishopric of Magdeburg, was buried in the city's Magdeburg Cathedral, cathedral after his death. Magdeburg's version of German town law, known as Magdeburg rights, spread throughout Central Europe, Central and Eastern Europe. In the Late Middle Ages, Magdeburg was one of the largest and most prosperous German cities and a notable member of the Hanseatic League. One of the most notable people from the city was Otto von Guericke, famous for his experiments with the Magdeburg hemispheres. Magdeburg has experienced three major devastations in its history. In 1207 the first catastrophe struck the city, with a fire burning down large parts of the city, including the Magdeburg Cathedral#Previous building, Ottonian cathedral. The Catholic League (German), Catholi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Priyanshi Somani
Priyanshi Somani (born 16 November 1998) is the 2010 Mental Calculation World Cup winner. Further reading Mental Calculation World Cup 2010 results '''' Indian reference [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
