Potsdam ( German pronunciation: [ˈpotsdam] ) is the capital and largest city of the German state of Brandenburg . It is part of the Berlin/Brandenburg Metropolitan Region . Potsdam sits on the River Havel , a tributary of the Elbe , downstream of Berlin, and lies embedded in a hilly morainic landscape dotted with many lakes, around 20 of which are located within Potsdam's city limits. It lies some 25 kilometres (16 miles) southwest of Berlin's city centre. The name of the city and of many of its boroughs are of Slavic origin.
158-660: Potsdam was a residence of the Prussian kings and the German Emperor until 1918. Its planning embodied ideas of the Age of Enlightenment : through a careful balance of architecture and landscape, Potsdam was intended as "a picturesque, pastoral dream" which would remind its residents of their relationship with nature and reason. The city, which is over 1,000 years old, is widely known for its palaces, its lakes, and its overall historical and cultural significance. Landmarks include
316-581: A Republic at the end of World War I . After the Nazis seized power in 1933 , there was a ceremonial handshake between President Paul von Hindenburg and the new Chancellor Adolf Hitler on 21 March 1933 in Potsdam's Garrison Church in what became known as the " Day of Potsdam ". This symbolised a coalition of the military ( Reichswehr ) and Nazism . Potsdam was severely damaged by Allied bombing raids during World War II . The Cecilienhof Palace
474-729: A fiefdom to the Teutonic Knights , a German military order of crusading knights, headquartered in the Kingdom of Jerusalem at Acre . In 1225 he expelled them, and they transferred their operations to the Baltic Sea area. Konrad I , the Polish Duke of Masovia , had unsuccessfully attempted to conquer pagan Prussia in crusades in 1219 and 1222. In 1226 Duke Konrad invited the Teutonic Knights to conquer
632-532: A centre of science in Germany in the 19th century. Today, there are three public colleges, the University of Potsdam , and more than 30 research institutes in the city. The area was formed from a series of large moraines left after the last glacial period . Today, only one quarter of the city is built up, the rest remaining as green space. There are about 20 lakes and rivers in and around Potsdam, such as
790-401: A city is that trees also help fight global warming by absorbing CO 2 from the atmosphere. Painting rooftops white has become a common strategy to reduce the heat island effect. In cities, there are many dark coloured surfaces that absorb the heat of the sun in turn lowering the albedo of the city. White rooftops allow high solar reflectance and high solar emittance, increasing the albedo of
948-664: A coalition of Hanseatic cities of western Prussia, rebelled against the Order and requested help from the Polish king, Casimir IV Jagiellon . The Teutonic Knights were forced to acknowledge the sovereignty of, and to pay tribute to Casimir IV in the Second Peace of Thorn (1466) , losing western Prussia ( Royal Prussia ) to Poland in the process. Pursuant to the Second Peace of Thorn, two Prussian states were established. During
1106-492: A conference which defined Germany's history for the following 45 years. Babelsberg , in the south-eastern part of Potsdam, was already by the 1930s the home of a major film production studio and it has enjoyed success as an important center of European film production since the fall of the Berlin Wall . The Filmstudio Babelsberg , founded in 1912, is the oldest large-scale film studio in the world. Potsdam developed into
1264-658: A continental great power and Prussia satisfied its desire for merging the once separate territories and gaining strong economic and strategic power, particularly from the full access to the resources of the Ruhr. Bismarck desired Austria as an ally in the future, and so he declined to annex any Austrian territory. But in the Peace of Prague in 1866, Prussia annexed four of Austria's allies in northern and central Germany – Hanover, Hesse-Kassel , Nassau and Frankfurt . Prussia also won full control of Schleswig-Holstein . As
1422-455: A crown from a revolutionary assembly without the sanction of Germany's other monarchs. The Frankfurt Parliament was forced to dissolve in 1849, and Frederick William issued a constitution by his own authority in 1850. This conservative document provided for a two-house parliament, the Landtag of Prussia . The lower house, or Prussian House of Representatives was elected by all males over
1580-594: A crown placed around its neck as a symbol of submission to Poland. Albert I, a member of a cadet branch of the House of Hohenzollern became a Lutheran Protestant and secularized the Order's Prussian territories. This was the area east of the mouth of the Vistula river, later sometimes called "Prussia proper". For the first time, these lands came into the hands of a branch of the Hohenzollern family, who already ruled
1738-469: A desire for German unification in this period was the Burschenschaft student movement, by students who encouraged the use of the black-red-gold flag, discussions of a unified German nation, and a progressive, liberal political system. Because of Prussia's size and economic importance, smaller states began to join its free trade area in the 1820s. Prussia benefited greatly from the creation in 1834 of
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#17327647666511896-657: A favoured location for immigration by (later mainly Protestant) Germans ( see Ostsiedlung ), as well as Poles and Lithuanians along the border regions. Before its abolition, the territory of the Free State of Prussia included the provinces of East Prussia ; Brandenburg ; Saxony (including much of the present-day state of Saxony-Anhalt and parts of the state of Thuringia in Germany); Pomerania ; Rhineland ; Westphalia ; Silesia (without Austrian Silesia ); Schleswig-Holstein ; Hanover ; Hesse-Nassau ; and
2054-524: A heat wave, as it deprives urban residents of the cool relief found in rural areas during the night. Increased temperatures have been reported to cause heat illnesses , such as heat stroke , heat exhaustion , heat syncope , and heat cramps . Extreme heat is the deadliest form of weather in the U.S. Per a study by Professor Terri Adams-Fuller, heat waves kill more people in the U.S. than hurricanes, floods, and tornadoes combined. These heat illnesses are more common within medium-to-large metro areas than
2212-679: A large percentage of solar heat creating warmer near-surface temperatures. Paving with light-coloured concrete, in addition to replacing asphalt with light-coloured concrete, communities may be able to lower average temperatures. However, research into the interaction between reflective pavements and buildings has found that, unless the nearby buildings are fitted with reflective glass, solar radiation reflected off light-coloured pavements can increase building temperatures, increasing air conditioning demands. There are specific paint formulations for daytime radiative cooling that reflect up to 98.1% of sunlight. Green roofs are excellent insulators during
2370-605: A particular urban heat island. One method to quantify the UHI effect within urban areas is the UHI Index created by the Californian EPA in 2015. It compares the temperature of a surveyed area and rural reference points upwind from the surveyed area, at a height of two meters above ground level. The difference in temperature in degrees Celsius is taken hourly and differences with an increased urban temperature compared to
2528-547: A result of these territorial gains, Prussia now stretched uninterrupted across the northern two-thirds of Germany and contained two-thirds of Germany's population. The German Confederation was dissolved, and Prussia impelled the 21 states north of the Main river into forming the North German Confederation . Prussia was the dominant state in the new confederation, as the kingdom comprised almost four-fifths of
2686-539: A result of this warming, monthly rainfall is about 28% greater between 20 and 40 miles (32 and 64 km) downwind of cities, compared with upwind. Some cities show a total precipitation increase of 51%. One study concluded that cities change the climate in area two–four times larger than their own area. One 1999 comparison between urban and rural areas proposed that urban heat island effects have little influence on global mean temperature trends . Others suggested that urban heat islands affect global climate by impacting
2844-724: A significant increase in Surface Urban Heat Island Intensity (SUHII) from 1985 to 2017, influenced by both geographic direction and time. This research, enhancing the understanding of SUHII's spatial and temporal variations, emphasizes the need for precise urban planning to mitigate the health impacts of urban heat islands. Surface UHI's are more prominent during the day and are measured using the land surface temperature and remote sensing. UHIs also impair water quality . Hot pavement and rooftop surfaces transfer their excess heat to stormwater, which then drains into storm sewers and raises water temperatures as it
3002-580: A small detached area in the south called Hohenzollern , the ancestral home of the Prussian ruling family. The land that the Teutonic Knights occupied was flat and covered with fertile soil. The area was perfectly suited to the large-scale raising of wheat. The rise of early Prussia was based on the raising and selling of wheat. Teutonic Prussia became known as the "bread basket of Western Europe" (in German, Kornkammer , or granary). The port cities which rose on
3160-474: A study by Hyunkuk Cho of Yeungnam University, an increased number of days with extreme heat each year correlates to a decrease in student test scores. High UHI intensity correlates with increased concentrations of air pollutants that gathered at night, which can affect the next day's air quality . These pollutants include volatile organic compounds , carbon monoxide , nitrogen oxides , and particulate matter . The production of these pollutants combined with
3318-616: A study by Professor Francisco Salamanca Palou and colleagues, this residual heat can cause nighttime increases of up to 1 °C in urban areas. Increased energy use from air conditioners also contributes to carbon emissions, which doubly exacerbates the effects of UHIs. Strategies to improve urban resilience by reducing excessive heat in cities include: Planting trees in cities, cool roofs (painted white or with reflective coating) and light-coloured concrete, green infrastructure (including green roofs ), passive daytime radiative cooling . The temperature difference between urban areas and
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#17327647666513476-485: A territory free of any feudal obligations, which constituted the basis for their later elevation to kings. Frederick William I succeeded in organizing the electorate by establishing an absolute monarchy in Brandenburg-Prussia, an achievement for which he became known as the "Great Elector". Above all, he emphasised the importance of a powerful military to protect the state's disconnected territories, while
3634-441: A warming world, increasing air temperature makes the urban heat island effect in cities worse. One key risk is heatwaves in cities that are likely to affect half of the future global urban population, with negative impacts on human health and economic productivity." There are unhelpful interactions between heat and built infrastructure: These interactions increase the risk of heat stress for people living in cities. Aside from
3792-522: Is a greenhouse gas whose formation will accelerate with the increase of temperature. Climate change is not a cause but an amplifier of the urban heat island effect. The IPCC Sixth Assessment Report from 2022 summarized the available research accordingly: "Climate change increases heat stress risks in cities [...] and amplifies the urban heat island across Asian cities at 1.5 °C and 2 °C warming levels, both substantially larger than under present climates [...]." The report goes on to say: "In
3950-447: Is caused by "heat trapping due to land use, the configuration and design of the built environment , including street layout and building size, the heat-absorbing properties of urban building materials, reduced ventilation, reduced greenery and water features, and domestic and industrial heat emissions generated directly from human activities". Throughout the daytime, particularly when the skies are cloudless, urban surfaces are warmed by
4108-434: Is not the cause of urban heat islands but it is causing more frequent and more intense heat waves which in turn amplify the urban heat island effect in cities. Compact, dense urban development may increase the urban heat island effect, leading to higher temperatures and increased exposure. A definition of urban heat island is: "The relative warmth of a city compared with surrounding rural areas." This relative warmth
4266-431: Is often the case with daytime heating, this warming also has the effect of generating convective winds within the urban boundary layer . At night, the situation reverses. The absence of solar heating leads to the decrease of atmospheric convection and the stabilization of urban boundary layer. If enough stabilization occurs, an inversion layer is formed. This traps urban air near the surface, keeping surface air warm from
4424-400: Is quite different. Those in the north and in the centre consist mainly of historical buildings, the south of the city is dominated by larger areas of newer buildings. The city of Potsdam is divided into 32 Stadtteile (boroughs, both quarters and suburbs/wards together), which are divided further into 84 statistical Bezirke (districts). Today, one distinguishes between the older parts of
4582-475: Is released into streams, rivers, ponds, and lakes. Additionally, increased urban water body temperatures lead to a decrease in biodiversity in the water. For example, in August 2001, rains over Cedar Rapids, Iowa led to a 10.5 °C (18.9 °F) rise in the nearby stream within one hour, resulting in a fish kill which affected an estimated 188 fish. Since the temperature of the rain was comparatively cool,
4740-540: Is served by several motorways : the A 10 , a beltway better known as Berliner Ring , the A 115 (using part of the AVUS ) and is closely linked to the A 2 and A 9 . The B 1 and B 2 federal roads cross the city. Potsdam features a network of urban and suburban buses. Potsdam is connected to national and international air traffic via Berlin Brandenburg Airport (BER), which is around 40 kilometers to
4898-524: Is that it derives from an old West Slavonic term meaning "beneath the oaks", i.e., the corrupted pod dubmi/dubimi ( pod "beneath", dub "oak"). However, some question this explanation. The area around Potsdam shows signs of occupancy since the Bronze Age and was part of Magna Germania as described by Tacitus . After the great migrations of the Germanic peoples, Slavs moved in and Potsdam
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5056-441: Is the increased energy required for air conditioning and refrigeration in cities that are in comparatively hot climates. The heat island effect costs Los Angeles about US$ 100 million per year in energy (in the year 2000). Through the implementation of heat island reduction strategies, significant annual net energy savings have been calculated for northern locations such as Chicago, Salt Lake City, and Toronto. Every year in
5214-451: Is usually larger at night than during the day, and is most apparent when winds are weak, under block conditions, noticeably during the summer and winter . The main cause of the UHI effect is from the modification of land surfaces while waste heat generated by energy usage is a secondary contributor. Urban areas occupy about 0.5% of the Earth's land surface but host more than half of
5372-789: The Fachhochschule Potsdam was founded as the second college. It had 3,518 students as of 2017. Konrad Wolf Film University of Babelsberg (HFF), founded in 1954 in Babelsberg , is the foremost centre of the German film industry since its birth, with over 600 students. There are also several research foundations, including Fraunhofer Institutes for Applied Polymer Research and Biomedical Engineering, Max Planck Institute for Gravitational Physics ( Albert Einstein Institute ), Max Planck Institute of Colloids and Interfaces, and Max Planck Institute for Molecular Plant Physiology,
5530-568: The Prussian House of Lords , was appointed by the king. He retained full executive authority, and ministers were responsible only to him. As a result, the grip of the landowning classes, the Junkers, remained unbroken, especially in the eastern provinces. The constitution nevertheless contained a number of liberal elements such as the introduction of jury courts and a catalog of fundamental rights that included freedom of religion, speech and
5688-792: The Allies , was officially abolished by an Allied declaration in 1947. The international status of the former eastern territories of the Kingdom of Prussia was disputed until the Treaty on the Final Settlement with Respect to Germany in 1990, but its return to Germany remains a cause among far-right politicians, the Federation of Expellees and various political revanchists and irredentists . The terms "Prussian" and " Prussianism " have often been used, especially outside Germany, to denote
5846-570: The Battle of Jena-Auerstedt , leading Frederick William III and his family to flee temporarily to Memel . Under the Treaties of Tilsit in 1807, the state lost about one-third of its area, including the areas gained from the second and third Partitions of Poland , which now fell to the Duchy of Warsaw . Beyond that, the king was obliged to pay a large indemnity, to cap his army at 42,000 men, and to let
6004-704: The Brandenburg Gate in Berlin) is situated on the Luisenplatz at the western entrance to the old town. Prussia Prussia ( / ˈ p r ʌ ʃ ə / , German : Preußen [ˈpʁɔʏsn̩] ; Old Prussian : Prūsija, Prūsa ) was a German state centred on the North European Plain that originated from the 1525 secularization of the Prussian part of the State of
6162-639: The Congress of Vienna was the recovery of her lost territories, as well as the whole of the Rhineland , Westphalia , 40% of Saxony and some other territories. These western lands were of vital importance because they included the Ruhr region, the centre of Germany's fledgling industrialisation, especially in the arms industry. These territorial gains also meant the doubling of Prussia's population. In exchange, Prussia withdrew from areas of central Poland to allow
6320-537: The Edict of Potsdam (1685) opened Brandenburg-Prussia for the immigration of Protestant refugees (especially Huguenots ), and he established a bureaucracy to carry out state administration efficiently. On 18 January 1701, Frederick William's son, Elector Frederick III, elevated Prussia from a duchy to a kingdom and crowned himself King Frederick I . In the Crown Treaty of 16 November 1700, Leopold I , emperor of
6478-521: The Havel , the Griebnitzsee , Templiner See , Tiefer See , Jungfernsee , Teltowkanal, Heiliger See , and Sacrower See . The highest point is the 114-metre (374 ft) high Kleiner Ravensberg . Potsdam is divided into seven historic city Stadtteile (quarters) and nine new Ortsteile (suburbs/wards, former separate villages), which joined the city in 2003. The appearance of the city boroughs
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6636-470: The Hohenzollern dynasty . The Teutonic Order wore a white coat embroidered with a black cross with gold insert and black imperial eagle. The combination of the black and white colours with the white and red Hanseatic colours of the free cities Bremen , Hamburg and Lübeck , as well as of Brandenburg , resulted in the black-white-red commercial flag of the North German Confederation , which became
6794-609: The Holy Roman Empire , allowed Frederick only to title himself " King in Prussia ", not " King of Prussia ". The state of Brandenburg-Prussia became commonly known as "Prussia", although most of its territory, in Brandenburg, Pomerania, and western Germany, lay outside Prussia proper. The Prussian state grew in splendour during the reign of Frederick I, who sponsored the arts at the expense of the treasury. Frederick I
6952-581: The House of Hohenzollern ruled Prussia, expanding its size with the Prussian Army . Prussia, with its capital at Königsberg and then, when it became the Kingdom of Prussia in 1701, Berlin , decisively shaped the history of Germany . The name Prussia derives from the Old Prussians ; in the 13th century, the Teutonic Knights – an organized Catholic medieval military order of German crusaders – conquered
7110-614: The Margraviate of Brandenburg , since the 15th century. Furthermore, with his renunciation of the Order, Albert could now marry and produce legitimate heirs. Brandenburg and Prussia united two generations later. In 1594 Duchess Anna of Prussia , granddaughter of Albert I and daughter of Albert Frederick, Duke of Prussia (reigned 1568–1618), married her cousin Elector John Sigismund of Brandenburg. When Albert Frederick died in 1618 without male heirs, John Sigismund
7268-655: The Netherlands and Bohemia . The edict accelerated population growth and economic recovery. Later, the city became a full residence of the Prussian royal family. The buildings of the royal residences were built mainly during the reign of Frederick the Great . One of these is the Sanssouci Palace (French: "without cares" or "no concern", by Georg Wenzeslaus von Knobelsdorff , 1744), famed for its formal gardens and Rococo interiors. Other royal residences include
7426-600: The New Palace and the Orangery . In 1815, at the formation of the Province of Brandenburg , Potsdam became the provincial capital until 1918, except for a period between 1827 and 1843 when Berlin was the provincial capital (as it became once again after 1918). The province comprised two governorates named after their capitals Potsdam and Frankfurt (Oder) . Between 1815 and 1945, the city of Potsdam served as capital of
7584-594: The Regierungsbezirk of Potsdam [ de ] ( German : Regierungsbezirk Potsdam ). The Regierungsbezirk encompassed the former districts of Uckermark , the Mark of Priegnitz, and the greater part of the Middle March . It was situated between Mecklenburg and the Province of Pomerania on the north, and the Province of Saxony on the south and west (Berlin, with a small surrounding district,
7742-546: The S7 S-Bahn line. The stations served are Griebnitzsee , Babelsberg and the Central Station ( Hauptbahnhof ), the main and long-distance station of the city. Other DB stations in Potsdam are Charlottenhof , Park Sanssouci (including the monumental Kaiserbahnhof ), Medienstadt Babelsberg , Rehbrücke , Pirschheide and Marquardt . The city also possesses a 27 km-long tramway network . Potsdam
7900-561: The Thirty Years' War (1618–1648). A continuous Hohenzollern possession since 1415, Potsdam became prominent, when it was chosen in 1660 as the hunting residence of Frederick William I , Elector of Brandenburg , the core of the powerful state that later became the Kingdom of Prussia . It also housed Prussian barracks . After the Edict of Potsdam in 1685, Potsdam became a centre of European immigration. Its religious freedom attracted people from France ( Huguenots ), Russia ,
8058-644: The defeat of Napoleon in Russia , Prussia quit its alliance with France and took part in the Sixth Coalition during the "Wars of Liberation" ( Befreiungskriege ) against the French occupation. Prussian troops under Marshal Gebhard Leberecht von Blücher contributed crucially (alongside the British and Dutch) to the final victory over Napoleon at the Battle of Waterloo of June 1815. Prussia's reward in 1815 at
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#17327647666518216-507: The grey-headed flying fox ( Pteropus poliocephalus ) and the common house gecko ( Hemidactylus frenatus ). Grey-headed flying foxes, found in Melbourne, Australia , colonized urban habitats following the increase in temperatures there. Increased temperatures, causing warmer winter conditions, made the city more similar in climate to the more northerly wildland habitat of the species. With temperate climates, urban heat islands will extend
8374-518: The main square of the Polish capital Kraków , Albert I resigned his position as Grand Master of the Teutonic Order and received the title "Duke of Prussia" from King Zygmunt I the Old of Poland. As a symbol of vassalage, Albert received a standard with the Prussian coat of arms from the Polish king. The black Prussian eagle on the flag was augmented with a letter "S" (for Sigismundus) and had
8532-727: The papacy and to the Holy Roman Emperor . Their initially close relationship with the Polish Crown deteriorated after they conquered Polish-controlled Pomerelia and Danzig in 1308. Eventually, Poland and Lithuania, allied through the Union of Krewo (1385), defeated the Knights in the Battle of Grunwald (Tannenberg) in 1410. The Thirteen Years' War (1454–1466) began when the Prussian Confederation ,
8690-603: The (compulsory) protection of Prussia. Additionally, mutual defence treaties were concluded. However, the existence of these treaties was kept secret until Bismarck made them public in 1867 when France tried to acquire Luxembourg . The controversy with the Second French Empire over the candidacy of Leopold, Prince of Hohenzollern to the Spanish throne was escalated both by France and Bismarck. With his Ems Dispatch , Bismarck took advantage of an incident in which
8848-437: The 19th century. Frederick the Great (reigned 1740–1786) practised enlightened absolutism . He built the world's best army, and usually won his many wars. He introduced a general civil code, abolished torture and established the principle that the Crown would not interfere in matters of justice. He also promoted an advanced secondary education, the forerunner of today's German gymnasium (grammar school) system, which prepares
9006-466: The Austrian Army at the Battle of Mollwitz on 10 April 1741, Frederick succeeded in conquering Lower Silesia (the northwestern half of Silesia). In the next year, 1742, he conquered Upper Silesia (the southeastern half). Furthermore, in the Third Silesian War (part of the Seven Years' War ) Frederick won a victory over Austria at the Battle of Lobositz on 1 October 1756. In spite of some victories afterward, his situation became far less comfortable
9164-426: The Baltic Prussian tribes on his borders. During 60 years of struggles against the Old Prussians , the Order established an independent state that came to control Prūsa. After the Livonian Brothers of the Sword joined the Teutonic Order in 1237, the Order also controlled Livonia (now Latvia and Estonia ). Around 1252 they finished the conquest of the northernmost Prussian tribe of the Skalvians as well as of
9322-414: The Baltic Sea for foreign countries. In the course of the Ostsiedlung (German eastward expansion) process, settlers were invited , bringing changes in the ethnic composition as well as in language, culture, and law of the eastern borders of the German lands. As a majority of these settlers were Germans, Low German became the dominant language. The Knights of the Teutonic Order were subordinate to
9480-405: The Brandenburg and Berlin region. Potsdam was historically a centre of European immigration. Its religious tolerance attracted people from France, Russia, the Netherlands and Bohemia. This is still visible in the culture and architecture of the city. The most popular attraction in Potsdam is Sanssouci Park , 2 km (1 mi) west of the city centre. In 1744 King Frederick the Great ordered
9638-443: The Brandenburg territories with those of Prussia proper. The partition also added Polish Royal Prussia to the kingdom, allowing Frederick to re-style himself King of Prussia. During this period, he also opened Prussia's borders to immigrants fleeing from religious persecution in other parts of Europe, such as the Huguenots . Prussia became a safe haven in much the same way that the United States welcomed immigrants seeking freedom in
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#17327647666519796-431: The Danes, who surrendered both territories. In the resulting Gastein Convention of 1865 Prussia took over the administration of Schleswig while Austria assumed that of Holstein. Bismarck realised that the dual administration of Schleswig and Holstein was only a temporary solution, and tensions rose between Prussia and Austria. The struggle for supremacy in Germany then led to the Austro-Prussian War (1866), triggered by
9954-444: The Duchy of Prussia, which was still held in fief from the Polish crown. In January 1656, during the first phase of the Second Northern War (1654–1660), he received the duchy as a fief from the Swedish king who later granted him full sovereignty in the Treaty of Labiau (November 1656). In 1657 the Polish king renewed this grant in the treaties of Wehlau and Bromberg . With Prussia, the Brandenburg Hohenzollern dynasty now held
10112-452: The French ambassador had approached William. The government of Napoleon III , expecting another civil war among the German states, declared war against Prussia, continuing Franco-German enmity . However, honouring their treaties, the German states joined forces and quickly defeated France in the Franco-Prussian War in 1870. Following victory under Bismarck's and Prussia's leadership, Baden , Württemberg and Bavaria, which had remained outside
10270-399: The French garrison troops throughout Prussia, effectively making the kingdom a French satellite. In response to this defeat, reformers such as Stein and Hardenberg set about modernising the Prussian state. Among their reforms were the liberation of peasants from serfdom , the Emancipation of Jews and making full citizens of them. The school system was rearranged, and in 1818 free trade
10428-477: The GFZ – German Research Centre for Geosciences , the Potsdam Astrophysical Institute, the Institute for Advanced Sustainability Studies, The Leibniz Institute for Agricultural Engineering and Bioeconomy and the Potsdam Institute for Climate Impact Research, which employs 340 people in researching climate change . As well as universities, Potsdam is home to reputable secondary schools . Montessori Gesamtschule Potsdam , in western Potsdam, attracts 400 students from
10586-429: The German Customs Union ( Zollverein ), which included most German states but excluded Austria. In 1848, the liberals saw an opportunity when revolutions broke out across Europe . Alarmed, King Frederick William IV agreed to convene a National Assembly and grant a constitution . When the Frankfurt Parliament offered Frederick William the crown of a united Germany, he refused on the grounds that he would not accept
10744-513: The German Empire was a version of the North German Confederation's constitution. Officially, the German Empire was a federal state. In practice, Prussia overshadowed the rest of the empire. Prussia included three-fifths of the German territory and two-thirds of its population. The Imperial German Army was, in practice, an enlarged Prussian army, although the other kingdoms ( Bavaria , Saxony and Württemberg ) retained their own small armies, coming under Imperial control in wartime. The imperial crown
10902-444: The Hanseatic League) until the decline of the League in about 1500. The expansion of Prussia based on its connection with the Hanseatic League cut both Poland and Lithuania off from the coast of the Baltic Sea and trade abroad. This meant that Poland and Lithuania would be traditional enemies of Prussia, which was still called the Teutonic Knights. In 1211, King Andrew II of Hungary granted Burzenland in Transylvania as
11060-405: The North German Confederation, accepted incorporation into a united German Empire . The empire was a "Lesser German" solution (in German, " kleindeutsche Lösung ") to the question of uniting all German-speaking peoples into one state, because it excluded Austria, which remained connected to Hungary and whose territories included non-German populations. On 18 January 1871 (the 170th anniversary of
11218-429: The Teutonic Order . The Knights had to relocate their headquarters to Mergentheim , but managed to keep land in Livonia until 1561. Prussia formed the German Empire when it united the German states in 1871. It was de facto dissolved by an emergency decree transferring powers of the Prussian government to German Chancellor Franz von Papen in 1932 and de jure by an Allied decree in 1947. For centuries,
11376-481: The U.S. 15% of energy goes towards the air conditioning of buildings in these urban heat islands. It was reported in 1998 that "the air conditioning demand has risen 10% within the last 40 years." Increases in air conditioning use also serve to worsen the effects of UHIs at night. While cooler nights are often a reprieve from heat waves during the day, the residual heat created by the use of air conditioning systems can lead to higher nighttime temperatures. According to
11534-451: The UHI. Heat islands can be affected by proximity to different types of land cover, so that proximity to barren land causes urban land to become hotter and proximity to vegetation makes it cooler. High levels of air pollution in urban areas can also increase the UHI, as many forms of pollution change the radiative properties of the atmosphere. UHI not only raises urban temperatures but also increases ozone concentrations because ozone
11692-431: The absorption of solar radiation . Surfaces in the urban areas tend to warm faster than those of the surrounding rural areas. By virtue of their high heat capacities , urban surfaces act as a reservoir of heat energy. For example, concrete can hold roughly 2,000 times as much heat as an equivalent volume of air. As a result, high daytime surface temperatures within the UHI can be easily seen via thermal remote sensing . As
11850-429: The age of 25. They were divided into three classes whose votes were weighted according to the amount of taxes paid. In one typical election, the first class (with those who paid the most in taxes) included 4% of voters and the third class (with those who paid the least) had 82%, yet each group chose the same number of electors. The system but assured dominance by the more well-to-do men of the population. The upper house,
12008-465: The area in which the city is located. The impact in a city can change a lot based on its local environment. Heat can be reduced by tree cover and green space which act as sources of shade and promote evaporative cooling. Other options include green roofs , passive daytime radiative cooling applications, and the use of lighter-colored surfaces and less absorptive building materials. These reflect more sunlight and absorb less heat. Climate change
12166-510: The army in relation to the total population, Mirabeau said later: "Prussia, is not a state with an army, but an army with a state." Frederick William also settled more than 20,000 Protestant refugees from Salzburg in thinly populated East Prussia, which was eventually extended to the west bank of the Neman river, and other regions. In the Treaty of Stockholm (1720), he acquired half of Swedish Pomerania . Frederick William I died in 1740 and
12324-606: The back of this wheat production included: Stettin in Pomerania (now Szczecin , Poland); Danzig in Prussia (now Gdańsk , Poland); Riga in Livonia (now Riga, Latvia); Königsberg in Prussia (now Kaliningrad , Russia); and Memel in Prussia (now Klaipėda , Lithuania). Wheat production and trade brought Prussia into a close relationship with the Hanseatic League during the period of time from 1356 (official founding of
12482-524: The battleground against Austria and other powers proved Prussia's status as one of the great powers of Europe. The Silesian Wars began more than a century of rivalry and conflict between Prussia and Austria as the two most powerful states operating within the Holy Roman Empire (although both had extensive territory outside the empire). In 1744, the County of East Frisia fell to Prussia following
12640-592: The beginning of three Silesian Wars (1740–1763). The First Silesian War (1740–1742) and the Second Silesian War (1744–1745) have, historically, been grouped together with the general European war called the War of the Austrian Succession (1740–1748). Holy Roman Emperor Charles VI had died on 20 October 1740. He was succeeded to the throne by his daughter, Maria Theresa . By defeating
12798-597: The brightest pupils for university studies. The Prussian education system was emulated in various countries, including the United States. During the reign of King Frederick William II (1786–1797), Prussia annexed additional Polish territory through the Second Partition of Poland in 1793 and the Third Partition of Poland in 1795. His successor, Frederick William III (1797–1840), announced
12956-522: The circumstances that fell into place. Bismarck curried support from large sections of the people by promising to lead the fight for greater German unification. He successfully guided Prussia through three wars, which unified Germany and brought William the position of German Emperor . The Kingdom of Denmark was at the time in personal union with the Duchies of Schleswig and Holstein , both of which had close ties with each other, although only Holstein
13114-475: The city (areas of the historic city and places suburbanized at the latest in 1939) – these are the city center, the western and northern suburbs, Bornim, Bornstedt, Nedlitz, Potsdam South, Babelsberg, Drewitz, Stern and Kirchsteigfeld – and those communities incorporated after 1990 which have since 2003 become Ortsteile – these are Eiche, Fahrland, Golm, Groß Glienicke, Grube, Marquardt, Neu Fahrland, Satzkorn and Uetz-Paaren. The new Ortsteile are located mainly in
13272-497: The city can be another way of increasing albedo and decreasing the urban heat island effect. It is recommended to plant deciduous trees because they can provide many benefits such as more shade in the summer and not blocking warmth in winter. Trees are a necessary feature in combating most of the urban heat island effect because they reduce air temperatures by 10 °F (5.6 °C), and surface temperatures by up to 20–45 °F (11–25 °C). Another benefit of having trees in
13430-507: The city has a humid continental climate ( Dfb ), which also shows a slight influence of the continent different from the climates predominantly influenced by the Atlantic Ocean . Low averages below freezing for almost all winter causing snows that are frequent and winters are cold, but not as stringent as inland locations or with greater influence from the same. Summer is also relatively warm with temperatures between 23 and 24 °C,
13588-504: The city or area the effect is occurring. Additionally, covering rooftops with a reflective coating, has shown to be an effective measure to reduce solar heat gain. A study led by Oscar Brousse from University College London, which simulated the impact of various cooling measures in London found that rooftops, which were either painted white or had reflective coating, proved to be the most effective solution for reducing outdoor temperatures at
13746-531: The construction of a residence here, where he could live sans souci ("without worries", in the French spoken at the court). The park hosts a botanical garden ( Botanical Garden, Potsdam ) and many buildings: Three gates from the original city wall remain today. The oldest is the Hunters' Gate ( Jägertor ), built in 1733. The Nauener Tor was built in 1755 and close to the historic Dutch Quarter. The ornate Brandenburg Gate (built in 1770, not to be confused with
13904-584: The construction of the Berlin Wall . The walling off of West Berlin not only isolated Potsdam from West Berlin, but also doubled commuting times to East Berlin . The Glienicke Bridge across the Havel connected the city to West Berlin and was the scene of some Cold War exchanges of spies . After German reunification , Potsdam became the capital of the newly re-established state of Brandenburg . Since then there have been many ideas and efforts to reconstruct
14062-528: The coronation of King Frederick I ), William was proclaimed "German Emperor " (not "Emperor of Germany") in the Hall of Mirrors at Versailles outside Paris, while the French capital was still under siege . The two decades after the unification of Germany were the peak of Prussia's fortunes, but the seeds for potential strife were built into the Prusso-German political system. The Constitution of
14220-540: The creation of Congress Poland under Russian sovereignty. In 1815 Prussia became part of the German Confederation . The first half of the 19th century saw a prolonged struggle in Germany between liberals, who wanted a united, federal Germany under a democratic constitution, and conservatives , who wanted to maintain Germany as a patchwork of independent, monarchical states with Prussia and Austria competing for influence. One small movement that signalled
14378-467: The crucial victory at the Battle of Königgrätz under Helmuth von Moltke the Elder . The century-long struggle between Berlin and Vienna for the dominance of Germany was now over. As a sideshow in this war, Prussia defeated Hanover in the Battle of Langensalza (1866) . While Hanover hoped in vain for help from Britain (as they had previously been in personal union), Britain stayed out of a confrontation with
14536-561: The day; materials commonly used in urban areas for pavement and roofs, such as concrete and asphalt , have significantly different thermal bulk properties (including heat capacity and thermal conductivity ) and surface radiative properties ( albedo and emissivity ) than the surrounding rural areas. This causes a change in the energy budget of the urban area, often leading to higher temperatures than surrounding rural areas. Pavements , parking lots , roads or, more generally speaking transport infrastructure , contribute significantly to
14694-633: The deaths could be attributed to the hot pavement of the city. Similar events have been documented across the American Midwest, as well as Oregon and California. Rapid temperature changes can be stressful to aquatic ecosystems. With the temperature of the nearby buildings sometimes reaching a difference of over 50 °F (28 °C) from the near-surface air temperature, precipitation warms rapidly, and run-off into nearby streams, lakes and rivers (or other bodies of water) to provide excessive thermal pollution . The increase in thermal pollution has
14852-650: The difference is more pronounced during the day in arid climates such as those in southeastern China and Taiwan. Studies have shown that diurnal variability is impacted by several factors including local climate and weather, seasonality, humidity, vegetation, surfaces, and materials in the built environment. Seasonal variability is less well understood than diurnal variability of the urban heat island temperature difference. Complex relationships between precipitation, vegetation, solar radiation, and surface materials in various local climate zones play interlocking roles that influence seasonal patterns of temperature variation in
15010-484: The disconnected Hohenzollern lands, especially the occupying Swedes . The ineffective and militarily weak Elector George William (1619–1640) fled from Berlin to Königsberg , the historic capital of the Duchy of Prussia, in 1637. His successor, Frederick William I (1640–1688), reformed the army to defend the lands. Frederick William I went to Warsaw in 1641 to render homage to King Władysław IV Vasa of Poland for
15168-484: The dispute over Schleswig and Holstein, with Bismarck using proposed injustices as the reason for war . On the Austrian side stood the south German states (including Bavaria and Württemberg ), some central German states (including Saxony ), and Hanover in the north. On the side of Prussia were Italy , most north German states, and some smaller central German states. Eventually, the better-armed Prussian troops won
15326-556: The east. Potsdam is a university town . The University of Potsdam was founded in 1991 as a university of the State of Brandenburg. Its predecessor was the Akademie für Staats- und Rechtswissenschaften der DDR " Walter Ulbricht " , a college of education founded in 1948 which was one of the GDR's most important colleges. There are about 20,000 students enrolled at the university. In 1991
15484-544: The eastern part, called the Duchy of Prussia from 1525, a feudal fief of the Crown of Poland up to 1657. The union of Brandenburg and the Duchy of Prussia in 1618 led to the proclamation of the Kingdom of Prussia in 1701. Prussia entered the ranks of the great powers shortly after becoming a kingdom. It became increasingly large and powerful in the 18th and 19th centuries. It had a major voice in European affairs under
15642-632: The effect on temperature, UHIs can produce secondary effects on local meteorology, including the altering of local wind patterns, the development of clouds and fog , the humidity , and the rates of precipitation. The extra heat provided by the UHI leads to greater upward motion, which can induce additional shower and thunderstorm activity. In addition, the UHI creates during the day a local low pressure area where relatively moist air from its rural surroundings converges, possibly leading to more favorable conditions for cloud formation. Rainfall rates downwind of cities are increased between 48% and 116%. Partly as
15800-623: The elevation to rank of urban Bezirk or affiliation with Potsdam governorate, respectively): Berlin was the capital of Prussia and later of the German Empire , but the court remained in Potsdam, where many government officials settled. In 1914, Emperor Wilhelm II signed the Declaration of War in the Neues Palais (New Palace). The city lost its status as a "second capital" in 1918, when Wilhelm II abdicated and Germany became
15958-534: The extinction of its ruling Cirksena dynasty. In the last 23 years of his reign until 1786, Frederick II, who understood himself as the "first servant of the state", promoted the development of Prussian areas such as the Oderbruch . At the same time he built up Prussia's military power and participated in the First Partition of Poland with Austria and Russia in 1772, an act that geographically connected
16116-777: The first comprehensive numerical treatment to predict the effects of the urban heat island (UHI) in 1969. The heat island effect was found to be the net result of several competing physical processes. In general, reduced evaporation in the city center and the thermal properties of the city building and paving materials are the dominant parameters. Modern simulation environments include ENVI-met , which simulates all interactions between building and ground surfaces, plants and ambient air. There are several causes of an urban heat island (UHI) related to common urban design aspects. For example, dark surfaces absorb significantly more solar radiation , which causes urban concentrations of roads and buildings to heat more than suburban and rural areas during
16274-611: The flag of the German Empire in 1871. Suum cuique ("to each, his own"), the motto of the Order of the Black Eagle created by King Frederick I in 1701, was often associated with the whole of Prussia. The Iron Cross , a military decoration created by King Frederick William III in 1813, was also commonly associated with the country. The region, originally populated by Baltic Old Prussians who were Christianised, became
16432-485: The flow of the water in ways that can mitigate UHI effect. One way is using a stormwater management technique called pervious pavement system (PPS). This technique has been used in over 30 countries and found to be successful in stormwater management and UHI mitigation. The PPS allows water to flow through the pavement allowing for the water to be absorbed causing the area to be cooled by evaporation. Green parking lots use vegetation and surfaces other than asphalt to limit
16590-408: The following years, as he failed in his attempts to knock Austria out of the war and was gradually reduced to a desperate defensive war. However, he never gave up and on 3 November 1760 the Prussian king won another battle, the hard-fought Battle of Torgau . Despite being several times on the verge of defeat Frederick, allied with Great Britain , Hanover and Hesse-Kassel , was finally able to hold
16748-567: The growing season, therefore altering breeding strategies of inhabiting species. This can be best observed in the effects that urban heat islands have on water temperature (see effects on water bodies ). Urban heat islands caused by cities have altered the natural selection process. Selective pressures like temporal variation in food, predation and water are relaxed causing a new set of selective forces to roll out. For example, within urban habitats, insects are more abundant than in rural areas. Insects are ectotherms . This means that they depend on
16906-533: The heat waves being influenced by the UHI of Potsdam. The average winter high temperature is 4.0 °C (39.2 °F), with a low of −1.3 °C (29.7 °F). Snow is common in the winter. Spring and autumn are short. Summers are mild, with a high of 24.3 °C (75.7 °F) and a low of 13.5 °C (56.3 °F). The Potsdam weather station has recorded the following extreme values: The name "Potsdam" originally seems to have been Poztupimi . A common theory
17064-771: The higher temperatures in UHIs can quicken the production of ozone . Ozone at surface level is considered to be a harmful pollutant. Studies suggest that increased temperatures in UHIs can increase polluted days but also note that other factors (e.g. air pressure , cloud cover , wind speed ) can also have an effect on pollution. Studies from Hong Kong have found that areas of the city with poorer outdoor urban air ventilation tended to have stronger urban heat island effects and had significantly higher all-cause mortality compared to areas with better ventilation. Another study employing advanced statistical methods in Babol city, Iran, revealed
17222-469: The jet stream. UHIs have the potential to directly influence the health and welfare of urban residents. As UHIs are characterized by increased temperature, they can potentially increase the magnitude and duration of heat waves within cities. The number of individuals exposed to extreme temperatures is increased by the UHI-induced warming. The nighttime effect of UHIs can be particularly harmful during
17380-526: The king/emperor and prime minister/chancellor to seek majorities from legislatures elected by two different franchises. In both the kingdom and the empire, the original constituencies were never redrawn to reflect changes in population, meaning that rural areas were grossly overrepresented by the turn of the 20th century. Urban heat island Urban areas usually experience the urban heat island ( UHI ) effect, that is, they are significantly warmer than surrounding rural areas . The temperature difference
17538-478: The lack of a shared framework for making such comparisons. Stormwater management is another option to help mitigate the effect of the urban heat island. Stormwater management is the controlling the water produced by the storm in a way that protects property and infrastructure. Urban infrastructure like streets, sidewalks, and parking lots do not allow for water to penetrate into the earth's surface causing water to flood. By using stormwater management, you can control
17696-404: The lands inhabited by them. In 1308, the Teutonic Knights conquered the region of Pomerelia with Danzig . Their monastic state was mostly Germanised through immigration from central and western Germany , and, in the south, it was Polonised by settlers from Masovia . The imposed Second Peace of Thorn (1466) split Prussia into the western Royal Prussia , becoming a province of Poland, and
17854-412: The length of growing seasons and decreases the occurrence of weak tornadoes . The UHI decreases air quality by increasing the production of pollutants such as ozone , and decreases water quality as warmer waters flow into area streams and put stress on their ecosystems . Not all cities have a distinct urban heat island, and the heat island characteristics depend strongly on the background climate of
18012-594: The mayor was selected by the NSDAP and the city council was dissolved; it was reconstituted in token form after 1945, but free elections did not take place until after reunification . Today, the city council is the city's central administrative authority. Local elections took place on 26 October 2003 and again in 2008. Between 1990 and 1999, the Chairman of the City Council was known as the "Town President" but today
18170-502: The militarism, military professionalism, aggressiveness, and conservatism of the Junker class of landed aristocrats in the East who dominated first Prussia and then the German Empire. The main coat of arms of Prussia , as well as the flag of Prussia , depicted a black eagle on a white background. The black and white national colours were already used by the Teutonic Knights and by
18328-417: The new state's territory and population. Prussia's near-total control over the confederation was secured in the constitution drafted for it by Bismarck in 1867. Executive power was held by a president , assisted by a chancellor responsible only to him. The presidency was a hereditary office of the Hohenzollern rulers of Prussia. There was also a two-house parliament. The lower house, or Reichstag (Diet),
18486-408: The north of the city. For the history of all incorporations, see the relevant section on incorporation and spin-offs. Structure with statistical numbering: At the end of 2019, a change was made to the administrative structure: Officially the climate is oceanic - more degraded by being far from the coast and to the east ( Köppen : Cfb ), but using the 1961–1990 normal and the 0 °C isotherm
18644-417: The operation of air conditioners. If a city or town has a good system of taking weather observations the UHI can be measured directly. An alternative is to use a complex simulation of the location to calculate the UHI, or to use an approximate empirical method. Such models allow the UHI to be included in estimates of future temperatures rises within cities due to climate change. Leonard O. Myrup published
18802-548: The original appearance of the city, including the Potsdam City Palace and the Garrison Church . Since 2000 Potsdam has been one of the fastest-growing cities in Germany. Largest groups of foreign residents: Potsdam has had a mayor ( Bürgermeister ) and city council since the 15th century. From 1809 the city council was elected, with a mayor ( Oberbürgermeister ) at its head. During Nazi Germany ,
18960-617: The other sources of the problem, replacing dark roofing requires the least amount of investment for the most immediate return. A cool roof made from a reflective material such as vinyl reflects at least 75 percent of the sun's rays, and emit at least 70 percent of the solar radiation absorbed by the building envelope. Asphalt built-up roofs (BUR), by comparison, reflect 6 percent to 26 percent of solar radiation. Using light-coloured concrete has proven effective in reflecting up to 50% more light than asphalt and reducing ambient temperature. A low albedo value, characteristic of black asphalt, absorbs
19118-630: The overall albedo of the city. Concentric expansion of cities is unfavourable in terms of the urban heat island phenomenon. It is recommended to plan the development of cities in strips, consistent with the hydrographic network, taking into account green areas with various plant species. In this way, it was planned to build urban settlements stretching over large areas, e.g. Kielce , Szczecin and Gdynia in Poland, Copenhagen in Denmark and Hamburg , Berlin and Kiel in Germany. Planting trees around
19276-633: The parks and palaces of Sanssouci , Germany's largest World Heritage Site, as well as other palaces such as the Orangery Palace , the New Palace , Cecilienhof Palace , and Charlottenhof Palace . Potsdam was also the location of the significant Potsdam Conference in 1945, the conference where the three heads of government of the USSR, the US, and the UK decided on the division of Germany following its surrender,
19434-436: The pedestrian level, outperforming solar panels, green roofs, and tree cover. The study simulated the impact of various cooling measures in London during a 2018 heatwave, finding that the so-called cool roofs could reduce average outdoor temperatures by 1.2 °C, and up to 2 °C in certain areas. In comparison, additional tree cover reduced temperatures by 0.3 °C and solar panels by 0.5° C. Relative to remedying
19592-534: The period of the monastic state of the Teutonic Knights, mercenaries from the Holy Roman Empire were granted lands by the Order and gradually formed a new landed Prussian nobility, from which the Junkers would evolve to take a major role in the militarization of Prussia and, later, Germany. On 10 April 1525, after signing of the Treaty of Kraków , which officially ended the Polish–Teutonic War (1519–21) , in
19750-485: The post is the "Chairman of the City Council". The mayor is elected directly by the population. The current mayor is Mike Schubert of the Social Democratic Party (SPD) since 2018. The most recent mayoral election was held on 23 September 2018, with a runoff held on 14 October, and the results were as follows: The city council governs the city alongside the mayor. The most recent city council election
19908-596: The potential to increase water temperature by 20 to 30 °F (11 to 17 °C). This increase causes the fish species inhabiting the body of water to undergo thermal stress and shock due to the rapid change in temperature of their habitat. Permeable pavements may reduce these effects by percolating water through the pavement into subsurface storage areas where it can be dissipated through absorption and evaporation. Species that are good at colonizing can use conditions provided by urban heat islands to thrive in regions outside of their normal range. Examples of this include
20066-412: The press. In 1862, King Wilhelm I appointed Otto von Bismarck as Minister President of Prussia . Bismarck was determined to defeat both the liberals and conservatives and increase Prussian supremacy and influence among the German states. There has been much debate as to whether Bismarck actually planned to create a united Germany when he set out on this journey, or whether he simply took advantage of
20224-480: The price of labor and equipment in that market, which is typically lower in more developed markets where there is more experience designing and installing green roofs. The individualized context of each green roof presents a challenge for making broad comparisons and assessments, and focusing only on monetary costs may leave out the social, environmental, and public health benefits green roofs provide. Global comparisons of green roof performance are further challenged by
20382-584: The rank of urban districts. The principal towns were Brandenburg upon Havel , Köpenick , Potsdam, Prenzlau , Spandau and Ruppin . Until 1875 Berlin also was a town within the governorate. After its disentanglement a number of its suburbs outside Berlin's municipal borders grew to towns, many forming urban Bezirke within the governorate of Potsdam such as Charlottenburg , Lichtenberg , Rixdorf (after 1912 Neukölln), and Schöneberg (all of which, as well as Köpenick and Spandau, incorporated into Greater Berlin in 1920). The urban Bezirke were (years indicating
20540-577: The reference points are summed up, creating an amount of degree-Celsius-hours, which is the UHI Index of the surveyed area. The measure of Celsius-hours might be averaged over many days, but is specified as Celsius-hours per averaged day. The index was created to estimate the expected use of air conditioning and resulting greenhouse gas emissions in California. The index does not consider values of or differences in wind-speed, humidity, or solar influx , which might influence perceived temperature or
20698-417: The reign of Frederick the Great (1740–1786). At the Congress of Vienna (1814–15), which redrew the map of Europe following Napoleon's defeat, Prussia acquired rich new territories, including the coal-rich Ruhr . The country then grew rapidly in influence economically and politically, and became the core of the North German Confederation in 1867, and then of the German Empire in 1871. The Kingdom of Prussia
20856-435: The rest of the U.S., largely in part due to UHIs. Heat illnesses can also be compounded when combined with air pollution which is common in many urban areas. Heat exposure can have adverse effects on mental health. Increases in temperature can contribute to increased aggression, as well as more cases of domestic violence and substance abuse. Greater heat can also negatively impact school performance and education. According to
21014-561: The shade and evaporative cooling effect of trees. Other causes of a UHI are due to geometric effects. The tall buildings within many urban areas provide multiple surfaces for the reflection and absorption of sunlight, increasing the efficiency with which urban areas are heated. This is called the " urban canyon effect ". Another effect of buildings is the blocking of wind, which also inhibits cooling by convection and prevents pollutants from dissipating. Waste heat from automobiles, air conditioning, industry, and other sources also contributes to
21172-607: The status quo. In 1863, Denmark introduced a shared constitution for Denmark and Schleswig. This led to conflict with the German Confederation, which authorised the occupation of Holstein by the Confederation, from which Danish forces withdrew. In 1864, Prussian and Austrian forces crossed the border between Holstein and Schleswig initiating the Second War of Schleswig . The Austro-Prussian forces defeated
21330-467: The still-warm urban surfaces, resulting in warmer nighttime air temperatures within the UHI. Generally speaking, the difference in temperature between the urban and surrounding rural area is more pronounced at night than in daytime. For example, in the United States, the temperature in urban areas tends to be warmer than the surrounding area by about 1-7 °F (0.6-4 °C) during the daytime, and about 2-5 °F (1-3 °C) warmer at night. However,
21488-406: The surrounding suburban or rural areas can be as much as 5 °C (9.0 °F). Nearly 40 percent of that increase is due to the prevalence of dark roofs, with the remainder coming from dark-coloured pavement and the declining presence of vegetation. The heat island effect can be counteracted slightly by using white or reflective materials to build houses, roofs, pavements, and roads, thus increasing
21646-618: The temperature of the environment to control their body temperature, making the warmer climates of the city perfect for their ability to thrive. A study done in Raleigh, North Carolina conducted on Parthenolecanium quercifex (oak scales), showed that this particular species preferred warmer climates and were therefore found in higher abundance in urban habitats than on oak trees in rural habitats. Over time spent living in urban habitats, they have adapted to thrive in warmer climates than in cooler ones. Another consequence of urban heat islands
21804-593: The union of the Prussian Lutheran and Reformed churches into one church . Prussia took a leading part in the French Revolutionary Wars , but remained quiet for more than a decade because of the Peace of Basel of 1795, only to go once more to war with France in 1806 as negotiations with that country over the allocation of the spheres of influence in Germany failed. Prussia suffered a devastating defeat against Napoleon 's troops in
21962-497: The urban heat island effect. For example, pavement infrastructure is a main contributor to urban heat during summer afternoons in Phoenix , United States. Another major reason is the lack of evapotranspiration (for example, through lack of vegetation) in urban areas. The U.S. Forest Service found in 2018 that cities in the United States are losing 36 million trees each year. With a decreased amount of vegetation, cities also lose
22120-577: The war, were demolished. When in 1946 the remainder of the Province of Brandenburg west of the Oder-Neiße line was constituted as the state of Brandenburg , Potsdam became its capital. In 1952 the GDR disestablished its states and replaced them by smaller new East German administrative districts known as Bezirke . Potsdam became the capital of the new Bezirk Potsdam until 1990. Potsdam, south-west of Berlin, lay just outside West Berlin after
22278-414: The warm weather months and the plants cool the surrounding environment. Plants can improve air quality as they absorb carbon dioxide and concomitantly produce oxygen. Green roofs can also have positive impacts on stormwater management and energy consumption. Cost can be a barrier to implementing a green roof. Several factors influence the cost of a green roof, including design and soil depth, location, and
22436-453: The western Baltic Curonians , and erected Memel Castle , which developed into the major port city of Memel . The Treaty of Melno defined the final border between Prussia and the adjoining Grand Duchy of Lithuania in 1422. The Hanseatic League officially formed in northern Europe in 1356 as a group of trading cities. This League came to hold a monopoly on all trade leaving the interior of Europe and Scandinavia and on all sailing trade in
22594-489: The whole of Silesia against a coalition of Saxony , the Habsburg monarchy, France and Russia . Voltaire , a close friend of the king, once described Frederick the Great's Prussia by saying "...it was Sparta in the morning, Athens in the afternoon." Silesia, full of rich soils and prosperous manufacturing towns, became a vital region to Prussia, greatly increasing the nation's area, population, and wealth. Success on
22752-423: The world's population. As a population center grows, it tends to expand its area and increase its average temperature. The term heat island is also used; the term can be used to refer to any area that is relatively hotter than the surrounding, but generally refers to human-disturbed areas. Monthly rainfall is greater downwind of cities, partially due to the UHI. Increases in heat within urban centers increases
22910-648: Was a hereditary office of the House of Hohenzollern, the royal house of Prussia. The Minister President of Prussia was, except for two brief periods (January–November 1873 and 1892–94), also imperial chancellor . But the empire itself had no right to collect taxes directly from its subjects; the only incomes fully under federal control were the customs duties, common excise duties, and the revenue from postal and telegraph services. While all men above age 25 were eligible to vote in imperial elections, Prussia retained its restrictive three-class voting system. This effectively required
23068-471: Was an urban governorate and enclave within the governorate of Potsdam between 1815 and 1822, then it merged as urban district into the governorate only to be disentangled again from Potsdam governorate in 1875, becoming a distinct province-like entity on 1 April 1881). Towards the north west the governorate was bounded by the rivers Elbe and the Havel, and on the north east by the Oder . The south eastern boundary
23226-686: Was effectively dismantled into Nazi German Gaue in 1935. Nevertheless, some Prussian ministries were kept and Hermann Göring remained in his role as Minister President of Prussia until the end of World War II . Former eastern territories of Germany that made up a significant part of Prussia lost the majority of their German population after 1945 as the Polish People's Republic and the Soviet Union both absorbed these territories and had most of its German inhabitants expelled by 1950. Prussia, deemed "a bearer of militarism and reaction" by
23384-463: Was elected by universal male suffrage . The upper house, or Bundesrat (Federal Council) was appointed by the state governments. The Bundesrat was, in practice, the stronger chamber. Prussia had 17 of 43 votes, and could easily control proceedings through alliances with the other states. As a result of the peace negotiations, the states south of the Main remained theoretically independent, but received
23542-511: Was granted the right of succession to the Duchy of Prussia, then still a Polish fief. From this time the Duchy of Prussia was in personal union with the Margraviate of Brandenburg. The resulting state, known as Brandenburg-Prussia , consisted of geographically disconnected territories in Prussia, Brandenburg, and the Rhineland lands of Cleves and Mark . During the Thirty Years' War (1618–1648), various armies repeatedly marched across
23700-401: Was held on 9 June 2024, and the results were as follows: The Landtag Brandenburg , the parliament of the state of Brandenburg is in Potsdam. It has been housed in the Potsdam City Palace since 2014. Potsdam is twinned with: Potsdam, included in the fare zone "C" ( Tarifbereich C ) of Berlin 's public transport area and fare zones A and B of its own public transport area, is served by
23858-459: Was introduced. The process of army reform ended in 1813 with the introduction of compulsory military service for men. By 1813, Prussia could mobilize almost 300,000 soldiers, more than half of which were conscripts of the Landwehr of variable quality. The rest consisted of regular soldiers that were deemed excellent by most observers, and very determined to repair the humiliation of 1806. After
24016-574: Was now so large and so dominant in the new Germany that Junkers and other Prussian élites identified more and more as Germans and less as Prussians. The Kingdom ended in 1918 along with other German monarchies that were terminated by the German Revolution . In the Weimar Republic , the Free State of Prussia lost nearly all of its legal and political importance following the 1932 coup led by Franz von Papen. Subsequently, it
24174-574: Was part of the German Confederation . When the Danish government tried to integrate Schleswig, but not Holstein, into the Danish state, Prussia led the German Confederation against Denmark in the First War of Schleswig (1848–1851). Because Russia supported Austria, Prussia also conceded predominance in the German Confederation to Austria in the Punctation of Olmütz in 1850, resulting in a return to
24332-587: Was probably founded after the 7th century as a settlement of the Hevelli tribe centred on a castle. It was first mentioned in a document in 993 as Poztupimi , when Emperor Otto III gifted the territory to the Quedlinburg Abbey , then led by his aunt Matilda . By 1317, it was mentioned as a small town. It gained its town charter in 1345. In 1573, it was still a small market town of 2,000 inhabitants. Potsdam lost nearly half of its population due to
24490-419: Was succeeded by his son, Frederick II , whose accomplishments led to his reputation as "Frederick the Great". As crown prince, Frederick had focused, primarily, on philosophy and the arts. He was an accomplished flute player and composer. In 1740, Prussian troops crossed over the undefended border of Silesia and rapidly conquered the region. Silesia was the richest province of Habsburg Austria . It signalled
24648-524: Was succeeded by his son, Frederick William I (1713–1740), the austere "Soldier King", who did not care for the arts but was thrifty and practical. He was the main creator of the vaunted Prussian bureaucracy and the professionalised standing army, which he developed into one of the most powerful in Europe. His troops only briefly saw action during the Great Northern War . In view of the size of
24806-848: Was the scene of the Potsdam Conference from 17 July to 2 August 1945, at which the victorious Allied leaders Harry S. Truman , Winston Churchill and Joseph Stalin met to decide the future of Germany and postwar Europe in general. The conference ended with the Potsdam Agreement and the Potsdam Declaration . The government of East Germany (formally known as the German Democratic Republic (German: Deutsche Demokratische Republik , DDR)) tried to remove symbols of "Prussian militarism ". Many historic buildings, some of them badly damaged in
24964-402: Was to the neighbouring governorate of Frankfurt (Oder). About 500,000 inhabitants lived in the Potsdam governorate, which covered an area of about 20,700 square kilometres (7,992 sq mi), divided into thirteen rural districts , partially named after their capitals: The traditional towns in the governorate were small, however, in the course of the industrial labour migration some reached
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