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Tadeusz Sędzimir
Tadeusz Sendzimir ( ; originally Sędzimir, ; July 15, 1894 – September 1, 1989) was a Polish engineer and inventor of international renown. He held 120 patents in mining and metallurgy, 73 of which were awarded to him in the United States. He developed revolutionary methods of processing steel and metals used in every industrialized nation of the world. He was awarded many distinctions and honours including the Polish Cross of Merit (Poland), Gold Cross of Merit (1938), the Bessemer Gold Medal (1965) and the Brinell Gold Medal of the Royal Swedish Academy of Sciences in Stockholm (1974). Early years Sendzimir was the eldest son of Kazimierz Sędzimir belonging to the Clan of Ostoja and Wanda Jaskółowska. Fascinated by machinery as a child, he built his own camera at the age of 13. After studying at the 4th Classical Gymnasium (''Gimnazjum Klasyczne'') in Lwów he entered the Lviv Polytechnic, Politechnika Lwowska. However when Lwów was captured by Russian troops the Polytec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lviv
Lviv ( or ; ; ; see #Names and symbols, below for other names) is the largest city in western Ukraine, as well as the List of cities in Ukraine, fifth-largest city in Ukraine, with a population of It serves as the administrative centre of Lviv Oblast and Lviv Raion, and is one of the main Ukrainian culture, cultural centres of Ukraine. Lviv also hosts the administration of Lviv urban hromada. It was named after Leo I of Galicia, the eldest son of Daniel of Galicia, Daniel, King of Ruthenia. Lviv (then Lwów) emerged as the centre of the historical regions of Red Ruthenia and Galicia (Eastern Europe), Galicia in the 14th century, superseding Halych, Chełm, Belz, and Przemyśl. It was the capital of the Kingdom of Galicia–Volhynia from 1272 to 1349, when it went to King Casimir III the Great of Kingdom of Poland, Poland in a Galicia–Volhynia Wars, war of succession. In 1356, Casimir the Great granted it town rights. From 1434, it was the regional capital of the Ruthenian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clan Of Ostoja
The Clan Ostoja (Moscics), Clan of Ostoja (old Polish: ''Ostoya'') was a powerful group of knights and lords in late-medieval Europe. The clan encompassed families in the Polish–Lithuanian Commonwealth (including present-day Belarus and Ukraine), Hungary and Upper Hungary (now Slovakia), Transylvania, and Prussia. The clan crest is the Ostoja coat of arms, and the battle cry is ''Ostoja'' ("Mainstay") or ''Hostoja'' ("Prevail"). The clan, of Alans, Alan origin, adopted the Sarmatians, Royal-Sarmatian tamga ''Draco (military standard), draco'' (dragon) emblem. During the Polish–Lithuanian Commonwealth, the clan adopted several Lithuanian families, generally of Ruthenian nobility, Ruthenian princely origin, and transformed into a clan of landlords, senators and nobility.Franciszek Ksawery Piekosinski, ''Heraldyka polska wieków średnich'' (Polish Heraldry of the Middle Ages), Kraków, 1899 Members of the clan worked together closely, often living close to each other. They held ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Katowice
Katowice (, ) is the capital city of the Silesian Voivodeship in southern Poland and the central city of the Katowice urban area. As of 2021, Katowice has an official population of 286,960, and a resident population estimate of around 315,000. Katowice is a central part of the Metropolis GZM, with a population of 2.3 million, and a part of a larger Katowice-Ostrava metropolitan area that extends into the Czech Republic and has a population of around 5 million people, making it List of metropolitan areas in Europe#Polycentric metropolitan areas in the European Union, one of the most populous metropolitan areas in the European Union."''Study on Urban Functions (Project 1.4.3)''" – European Observation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kostuchna
Kostuchna () is a district of Katowice Katowice (, ) is the capital city of the Silesian Voivodeship in southern Poland and the central city of the Katowice urban area. As of 2021, Katowice has an official population of 286,960, and a resident population estimate of around 315,000. K .... It has an area of 8.59 km2 and in 2007 had 8,233 inhabitants. File:Katowice - Church in Kostuchna (2).jpg, Holy Trinity church References Districts of Katowice {{Silesian-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Depression
The Great Depression was a severe global economic downturn from 1929 to 1939. The period was characterized by high rates of unemployment and poverty, drastic reductions in industrial production and international trade, and widespread bank and business failures around the world. The economic contagion began in 1929 in the United States, the largest economy in the world, with the devastating Wall Street stock market crash of October 1929 often considered the beginning of the Depression. Among the countries with the most unemployed were the U.S., the United Kingdom, and Weimar Republic, Germany. The Depression was preceded by a period of industrial growth and social development known as the "Roaring Twenties". Much of the profit generated by the boom was invested in speculation, such as on the stock market, contributing to growing Wealth inequality in the United States, wealth inequality. Banks were subject to laissez-faire, minimal regulation, resulting in loose lending and wides ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iron Hydroxide
An iron oxide is a chemical compound composed of iron and oxygen. Several iron oxides are recognized. Often they are non-stoichiometric. Ferric oxyhydroxides are a related class of compounds, perhaps the best known of which is rust. Iron oxides and oxyhydroxides are widespread in nature and play an important role in many geological and biological processes. They are used as iron ores, pigments, catalysts, and in thermite, and occur in hemoglobin. Iron oxides are inexpensive and durable pigments in paints, coatings and colored concretes. Colors commonly available are in the " earthy" end of the yellow/orange/red/brown/black range. When used as a food coloring, it has E number E172. Stoichiometries Iron oxides feature as ferrous ( Fe(II)) or ferric ( Fe(III)) or both. They adopt octahedral or tetrahedral coordination geometry. Only a few oxides are significant at the earth's surface, particularly wüstite, magnetite, and hematite. * Oxides of FeII ** FeO: iron(II) oxid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zinc
Zinc is a chemical element; it has symbol Zn and atomic number 30. It is a slightly brittle metal at room temperature and has a shiny-greyish appearance when oxidation is removed. It is the first element in group 12 (IIB) of the periodic table. In some respects, zinc is chemically similar to magnesium: both elements exhibit only one normal oxidation state (+2), and the Zn2+ and Mg2+ ions are of similar size. Zinc is the 24th most abundant element in Earth's crust and has five stable isotopes. The most common zinc ore is sphalerite (zinc blende), a zinc sulfide mineral. The largest workable lodes are in Australia, Asia, and the United States. Zinc is refined by froth flotation of the ore, roasting, and final extraction using electricity ( electrowinning). Zinc is an essential trace element for humans, animals, plants and for microorganisms and is necessary for prenatal and postnatal development. It is the second most abundant trace metal in humans after iron, an import ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rust
Rust is an iron oxide, a usually reddish-brown oxide formed by the reaction of iron and oxygen in the catalytic presence of water or air moisture. Rust consists of hydrous iron(III) oxides (Fe2O3·nH2O) and iron(III) oxide-hydroxide (FeO(OH), Fe(OH)3), and is typically associated with the corrosion of refined iron. Given sufficient time, any iron mass, in the presence of water and oxygen, could eventually convert entirely to rust. Surface rust is commonly flaky and friable, and provides no passivational protection to the underlying iron unlike other metals such as aluminum, copper, and tin which form stable oxide layers. ''Rusting'' is the common term for corrosion of elemental iron and its alloys such as steel. Many other metals undergo similar corrosion, but the resulting oxides are not commonly called "rust". Several forms of rust are distinguishable both visually and by spectroscopy, and form under different circumstances. Other forms of rust include the result of r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galvanizing
Galvanization ( also spelled galvanisation) is the process of applying a protective zinc coating to steel or iron, to prevent rusting. The most common method is hot-dip galvanizing, in which the parts are coated by submerging them in a bath of hot, molten zinc. Protective action The zinc coating, when intact, prevents corrosive substances from reaching the underlying iron. It's main function is to act as a sacrificial anode to prevent the iron from rusting by cathodic protection. Zinc is more reactive than iron, so the zinc coating preferentially oxidizes to zinc carbonate, preventing the iron from corroding, even if there are gaps in the zinc coating. Additional electroplating such as a chromate conversion coating may be applied to provide further surface passivation to the substrate material. History and etymology The process is named after the Italian physician, physicist, biologist and philosopher Luigi Galvani (9 September 1737 – 4 December 1798). The earliest known ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shanghai
Shanghai, Shanghainese: , Standard Chinese pronunciation: is a direct-administered municipality and the most populous urban area in China. The city is located on the Chinese shoreline on the southern estuary of the Yangtze River, with the Huangpu River flowing through it. The population of the city proper is the List of largest cities, second largest in the world after Chongqing, with around 24.87 million inhabitants in 2023, while the urban area is the List of cities in China by population, most populous in China, with 29.87 million residents. As of 2022, the Greater Shanghai metropolitan area was estimated to produce a gross metropolitan product (GDP (nominal), nominal) of nearly 13 trillion Renminbi, RMB ($1.9 trillion). Shanghai is one of the world's major centers for finance, #Economy, business and economics, research, science and technology, manufacturing, transportation, List of tourist attractions in Shanghai, tourism, and Culture of Shanghai, culture. The Port of Sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vladivostok
Vladivostok ( ; , ) is the largest city and the administrative center of Primorsky Krai and the capital of the Far Eastern Federal District of Russia. It is located around the Zolotoy Rog, Golden Horn Bay on the Sea of Japan, covering an area of , with a population of 603,519 residents Vladivostok is the second-largest city in the Far Eastern Federal District, as well as the Russian Far East, after Khabarovsk. It is located approximately from the China–Russia border and from the North Korea–Russia border. What is now Vladivostok was part of Outer Manchuria. Shortly after the signing of the Treaty of Aigun between Qing China and the Russian Empire and affirmed by the Convention of Peking – from which it is also known as the Amur Annexation – the city was founded as a Russian military outpost on July 2, 1860. In 1872, the main Russian naval base on the Pacific Ocean was transferred to the city, stimulating its growth. In 1914 the city experienced rapid growth economical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
