1.
Royal Castle, Warsaw
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The Royal Castle in Warsaw is a castle residency that formerly served throughout the centuries as the official residence of the Polish monarchs. It is located in the Castle Square, at the entrance to the Warsaw Old Town, the personal offices of the king and the administrative offices of the Royal Court of Poland were located there from the sixteenth century until the Partitions of Poland. Initially the complex served as the residence of the Dukes of Masovia, and since the century, the seat of the Polish-Lithuanian Commonwealth. In its long history the Royal Castle was repeatedly plundered and devastated by the invading Swedish, Brandenburgian, Prussian and Tsarist armies. The Constitution of 3 May 1791, the first of its type in Europe, in the 19th century, after the collapse of the November Uprising, it was used as an administrative centre by the Tsar and was re-designed for the needs of the Imperial Russian administration. During the course of World War I it was the residence of the German Governor-General, in 1920-1922 the Royal Castle was the seat of the Polish Head of State and between 1926 and World War II the building was the residence of the Polish president, Ignacy Mościcki. Reconstruction of the carried out in 1971-1984 was led by the Civic Committee. It was afforded by mainly US donations, in 1980, the Royal Castle, together with the Old Town was registered as a protected UNESCO World Heritage Site. Today it is a historical and national monument, and is listed as a national museum visited by over 500,000 people every year, the Royal Castle, due to its iconic appearance and its long history, is one of Warsaws most recognizable landmarks. In the 1339 the Papal Legate in Warsaw heard a case brought by the King of Poland, Casimir III the Great and he claimed that they had illegally seized a slice of Polish territory — Pomerania and the Kujawy region. The documents in this case are the earliest written testimony to the existence of Warsaw, at that time a fortified town surrounded by earthen and wooden ramparts, and situated where the Royal Castle now stands, it was the seat of Trojden, Duke of Masovia. At the end of the 13th century, during the Dukes Conrad II of Mazovia reign, the next duke, Casimir I, decided to build the first brick building here at the burg-citys area the Great Tower. Its facade, which was standing in 1944, was knocked down by the Germans. The character of the new residence and its size decided the change of the buildings status, and from 1414 it functioned as a Prince Manor. When the Masovia region was incorporated in the Kingdom of Poland in 1526, the edifice, which until then had been the Castle of the Dukes of Masovia, became one of the royal residences. From 1548 onwards Queen Bona Sforza resided in it with her daughters Izabela, who became Queen of Hungary, Catherine, later to become Queen of Sweden, in 1556–1557 and in 1564 the King of Poland, Sigismund II Augustus, convened royal parliaments in Warsaw. In 1569–1572 King Sigismund II Augustus started alterations in the Castle, the Curia Maior was altered so as provide a meeting place for the Parliament, with premises for the Chamber of Deputies on the ground floor, and the Senate Chamber on the first floor. This was one of the first attempts in Europe to create a building that would be used solely for parliamentary purposes, a new Renaissance—style building, known as the Royal House, was erected next to the Curia Maior
2.
Firefighting
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Firefighting is the act of attempting to prevent the spread of and extinguish significant unwanted fires in buildings, vehicles, woodland, etc. A firefighter suppresses and extinguishes fires to protect lives and to prevent the destruction of property, firefighters may provide other services to their communities. Additional hazards include falls and structural collapse that can exacerbate the problems entailed in a toxic environment, to combat some of these risks, firefighters carry self-contained breathing equipment. The first step in an operation is reconnaissance to search for the origin of the fire, to identify the specific risks. Fires can be extinguished by water, fuel or oxidant removal, the earliest known firefighters were in the city of Rome. In 60 A. D. emperor Nero established a Corps of Vigils to protect Rome after a disastrous fire and it consisted of 7,000 people equipped with buckets and axes, and they fought fires and served as police. In the 4th century B. C. an Alexandrian Greek named Ctesibius made a force pump called a siphona. As water rose in the chamber, it compressed the air inside, in the 16th century, syringes were also used as firefighting tools, the larger ones being mounted on wheels. Another traditional method that survived was the brigade, involving two lines of people formed between the water source and the fire. Typically, men in one of the lines would pass along the full buckets of water toward the fire while in the other women and children would pass back the empty buckets to be refilled. In the 17th century, fire engines were made, notably in Amsterdam, ancient Rome did not have municipal firefighters. Instead, private individuals relied on their slaves or supporters to take action and they would not only form bucket brigades or attempt to smother smaller fires, but would also demolish or raze nearby buildings to slow the spread of the fire. However, there is no mention of fires being extinguished, rather they were contained and burned themselves out, ancient Rome did not have an organized firefighting force until the Vigiles were formed in the reign of Augustus. Prior to the Great Fire of London in 1666, some parishes in the UK had begun to organize rudimentary firefighting, after the Great Fire, Nicholas Barbon introduced the first fire insurance. In order to reduce costs, Barbon also formed his own fire brigade. By the start of the 1800s, insured buildings were identified with a badge or mark, in 1833, these companies in London merged to form The London Fire Company Establishment. In World War II, the Auxiliary Fire Service and later the National Fire Service were established to supplement local fire services, at that time, there was no countrywide standard for firefighting terms, procedures, ranks, or equipment. These were standardized after World War II, in January 1608, a fire destroyed many of the colonists provisions and lodgings in Jamestown, Virginia
3.
Warsaw
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Warsaw is the capital and largest city of Poland. It stands on the Vistula River in east-central Poland, roughly 260 kilometres from the Baltic Sea and 300 kilometres from the Carpathian Mountains. Its population is estimated at 1.750 million residents within a metropolitan area of 3.101 million residents. The city limits cover 516.9 square kilometres, while the area covers 6,100.43 square kilometres. Once described as Paris of the East, Warsaw was believed to be one of the most beautiful cities in the world until World War II. On 9 November 1939, the city was awarded Polands highest military decoration for heroism, Warsaw is one of Europe’s most dynamic metropolitan cities. In 2012 the Economist Intelligence Unit ranked Warsaw as the 32nd most liveable city in the world, in 2017 the city came 4th in the “Business-friendly” category and 8th in the “Human capital and life style”. It was also ranked as one of the most liveable cities in Central, Warsaw is considered an Alpha– global city, a major international tourist destination and a significant cultural, political and economic hub. The city is a significant centre of research and development, BPO, ITO, the Warsaw Stock Exchange is the largest and most important in Central and Eastern Europe. Frontex, the European Union agency for external security, has its headquarters in Warsaw. Together with Frankfurt, London and Paris, Warsaw is also one of the cities with the highest number of skyscrapers in the European Union, the city is the seat of the Polish Academy of Sciences, Warsaw National Philharmonic Orchestra and the University of Warsaw. The historic city-centre of Warsaw with its picturesque Old Town in 1980 was listed as a UNESCO World Heritage Site, buildings represent examples of nearly every European architectural style and historical period. Warsaw provides many examples of architecture from the gothic, renaissance, baroque, neoclassical and modern periods, furthermore, the city is positioning itself as Europes chic cultural capital with thriving art and club scenes and renowned restaurants. Folk etymology attributes the city name to a fisherman, Wars, according to legend, Sawa was a mermaid living in the Vistula River with whom Wars fell in love. In actuality, Warsz was a 12th/13th-century nobleman who owned a village located at the site of Mariensztat neighbourhood. See also the Vršovci family which had escaped to Poland, the official city name in full is miasto stołeczne Warszawa. A native or resident of Warsaw is known as a Varsovian – in Polish warszawiak, warszawianin, warszawianka, warszawiacy, other names for Warsaw include Varsovia and Varsóvia, Varsovie, Varsavia, Warschau, װאַרשע /Varshe, Варшава /Varšava /Varshava, Varšuva, Varsó. The first fortified settlements on the site of todays Warsaw were located in Bródno, after Jazdów was raided by nearby clans and dukes, a new similar settlement was established on the site of a small fishing village called Warszowa
4.
Invasion of Poland
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The campaign ended on 6 October with Germany and the Soviet Union dividing and annexing the whole of Poland under the terms of the German-Soviet Frontier Treaty. German forces invaded Poland from the north, south, and west the morning after the Gleiwitz incident, as the Wehrmacht advanced, Polish forces withdrew from their forward bases of operation close to the Polish–German border to more established lines of defence to the east. After the mid-September Polish defeat in the Battle of the Bzura, Polish forces then withdrew to the southeast where they prepared for a long defence of the Romanian Bridgehead and awaited expected support and relief from France and the United Kingdom. While those two countries had pacts with Poland and had declared war on Germany on 3 September, in the end their aid to Poland was very limited. The Soviet Red Armys invasion of Eastern Poland on 17 September, in accordance with a protocol of the Molotov–Ribbentrop Pact. Facing a second front, the Polish government concluded the defence of the Romanian Bridgehead was no longer feasible, on 6 October, following the Polish defeat at the Battle of Kock, German and Soviet forces gained full control over Poland. The success of the invasion marked the end of the Second Polish Republic, the Soviet Union incorporated its newly acquired areas into its constituent Belarusian and Ukrainian republics, and immediately started a campaign of sovietization. In the aftermath of the invasion, a collective of underground resistance formed the Polish Underground State within the territory of the former Polish state. Many of the exiles that managed to escape Poland subsequently joined the Polish Armed Forces in the West. On 30 January 1933, the Nazi Party, under its leader Adolf Hitler, as part of this long-term policy, Hitler at first pursued a policy of rapprochement with Poland, trying to improve opinion in Germany, culminating in the German–Polish Non-Aggression Pact of 1934. Earlier, Hitlers foreign policy worked to weaken ties between Poland and France, and attempted to manoeuvre Poland into the Anti-Comintern Pact, forming a front against the Soviet Union. The Poles feared that their independence would eventually be threatened altogether, the so-called Polish Corridor constituted land long disputed by Poland and Germany, and inhabited by a Polish majority. The Corridor had become a part of Poland after the Treaty of Versailles, many Germans also wanted the city of Danzig and its environs to be reincorporated into Germany. Danzig was a city with a German majority. It had been separated from Germany after Versailles and made into the nominally independent Free City of Danzig, the series of border violations, which are unbearable to a great power, prove that the Poles no longer are willing to respect the German frontier. Poland participated with Germany in the partition of Czechoslovakia that followed the Munich Agreement and it coerced Czechoslovakia to surrender the region of Český Těšín by issuing an ultimatum to that effect on 30 September 1938, which was accepted by Czechoslovakia on 1 October. This region had a Polish majority and had been disputed between Czechoslovakia and Poland in the aftermath of World War I, the Polish annexation of Slovak territory later served as the justification for the Slovak state to join the German invasion. Poland rejected this proposal, fearing that after accepting these demands, it would become subject to the will of Germany
5.
Chimney
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A chimney is a structure that provides ventilation for hot flue gases or smoke from a boiler, stove, furnace or fireplace to the outside atmosphere. Chimneys are typically vertical, or as near as possible to vertical, to ensure that the gases flow smoothly, drawing air into the combustion in what is known as the stack, the space inside a chimney is called a flue. Chimneys may be found in buildings, steam locomotives and ships, in the United States, the term smokestack is also used when referring to locomotive chimneys or ship chimneys, and the term funnel can also be used. The height of a chimney influences its ability to transfer flue gases to the environment via stack effect. Additionally, the dispersion of pollutants at higher altitudes can reduce their impact on the immediate surroundings, in the case of chemically aggressive output, a sufficiently tall chimney can allow for partial or complete self-neutralization of airborne chemicals before they reach ground level. The dispersion of pollutants over an area can reduce their concentrations. Romans used tubes inside the walls to draw out of bakeries. The earliest extant example of an English chimney is at the keep of Conisbrough Castle in Yorkshire, however, they did not become common in houses until the 16th and 17th centuries. Smoke hoods were a method of collecting the smoke into a chimney. Another step in the development of chimneys was the use of built in ovens which allowed the household to bake at home, industrial chimneys became common in the late 18th century. Chimneys in ordinary dwellings were first built of wood and plaster or mud, since then chimneys have traditionally been built of brick or stone, both in small and large buildings. Early chimneys were of a brick construction. Later chimneys were constructed by placing the bricks around tile liners, to control downdrafts, venting caps with a variety of designs are sometimes placed on the top of chimneys. In the 18th and 19th centuries, the used to extract lead from its ore produced large amounts of toxic fumes. Lead and silver deposits formed on the inside of these long chimneys, todays central heating systems have made chimney placement less critical, and the use of non-structural gas vent pipe allows a flue gas conduit to be installed around obstructions and through walls. In fact, most modern high-efficiency heating appliances do not require a chimney, such appliances are generally installed near an external wall, and a noncombustible wall thimble allows a vent pipe to run directly through the external wall. On a pitched roof where a chimney penetrates a roof, flashing is used to seal up the joints, the down-slope piece is called an apron, the sides receive step flashing and a cricket is used to divert water around the upper side of the chimney underneath the flashing. Industrial chimneys are commonly referred to as flue gas stacks and are generally external structures and they are generally located adjacent to a steam-generating boiler or industrial furnace and the gases are carried to them with ductwork
6.
Steam engine
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A steam engine is a heat engine that performs mechanical work using steam as its working fluid. Steam engines are combustion engines, where the working fluid is separate from the combustion products. Non-combustion heat sources such as power, nuclear power or geothermal energy may be used. The ideal thermodynamic cycle used to analyze this process is called the Rankine cycle, in the cycle, water is heated and transforms into steam within a boiler operating at a high pressure. When expanded through pistons or turbines, mechanical work is done, the reduced-pressure steam is then exhausted to the atmosphere, or condensed and pumped back into the boiler. Specialized devices such as hammers and steam pile drivers are dependent on the steam pressure supplied from a separate boiler. The use of boiling water to mechanical motion goes back over 2000 years. The Spanish inventor Jerónimo de Ayanz y Beaumont obtained the first patent for an engine in 1606. In 1698 Thomas Savery patented a steam pump that used steam in direct contact with the water being pumped, Saverys steam pump used condensing steam to create a vacuum and draw water into a chamber, and then applied pressurized steam to further pump the water. Thomas Newcomens atmospheric engine was the first commercial steam engine using a piston. In 1781 James Watt patented an engine that produced continuous rotary motion. Watts ten-horsepower engines enabled a range of manufacturing machinery to be powered. The engines could be sited anywhere that water and coal or wood fuel could be obtained, by 1883, engines that could provide 10,000 hp had become feasible. The stationary steam engine was a key component of the Industrial Revolution, the aeolipile described by Hero of Alexandria in the 1st century AD is considered to be the first recorded steam engine. Torque was produced by steam jets exiting the turbine, in the Spanish Empire, the great inventor Jerónimo de Ayanz y Beaumont obtained a patent for the first steam engine in history in 1603. Thomas Savery, in 1698, patented the first practical, atmospheric pressure and it had no piston or moving parts, only taps. It was an engine, a kind of thermic syphon, in which steam was admitted to an empty container. The vacuum thus created was used to water from the sump at the bottom of the mine
