1.
Frankfurt Stock Exchange
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The Frankfurt Stock Exchange is the worlds 10th largest stock exchange by market capitalization. Located in Frankfurt, Germany, the Frankfurt Stock Exchange is owned and operated by Deutsche Börse AG and it is located in the district of Innenstadt and within the central business district known as Bankenviertel. The trading indices are DAX, DAXplus, CDAX, DivDAX, LDAX, MDAX, SDAX, TecDAX, VDAX, through its Deutsche Börse Cash Market business section, Deutsche Börse AG now operates two trading venues at the Frankfurt Stock Exchange. Xetra is the market for exchange trading in German equities. In 2015,90 per cent of all trading in shares at all German exchanges was transacted through the Xetra, with regard to DAX listings, Xetra has 60 per cent market share throughout Europe. Trading times on trading days are from 9.00 a. m. to 5.30 p. m, the prices on Xetra serve as the basis for calculating the DAX, the best-known German share index. Over 200 trading participants from 16 European countries, plus Hong Kong, Börse Frankfurt is the trading venue for mainly private investors with more than one million securities of German and international issuers. So named Specialists on the trading floor attend to the trading of the securities, trading at the Frankfurt Stock Exchange is governed by clear rules, which apply equally for all trading participants. With a view to improving the continuity of prices and to avoid mistrades, several mechanisms are in place for the trading venues Xetra. These include volatility interruption, market order interruption, and liquidity interruption measures, the origins of the Frankfurt Stock Exchange go back to medieval trade fairs in the 11th century. By the 16th century Frankfurt developed into a wealthy and busy city with a based on trade. In 1585 a bourse was established to set up fixed currency exchange rates, during the following centuries Frankfurt developed into one of the worlds first stock exchanges - next to London and Paris. Bankers like Mayer Amschel Rothschild and Max Warburg had substantial influence on Frankfurts financial trade, in 1879 Frankfurt Stock Exchange moved into its new building at Börsenplatz. During the 1990s the Frankfurt Stock Exchange was also bourse for the Neuer Markt as part of the worldwide dot-com boom, in 1993 the Frankfurter Wertpapierbörse became Deutsche Börse AG, operating businesses for the exchange. Since then the profits from the presence of the European Central Bank in Frankfurt. In 2002 and 2004 Deutsche Börse was in advanced negotiations to take over London Stock Exchange, financial Market Integration in a Wider European Union International financial centres, rivals or partner
2.
Manufacturing
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Manufacturing is the value added to production of merchandise for use or sale using labour and machines, tools, chemical and biological processing, or formulation. Manufacturing engineering or manufacturing process are the steps through which raw materials are transformed into a final product, the manufacturing process begins with the product design, and materials specification from which the product is made. These materials are modified through manufacturing processes to become the required part. Manufacturing takes turns under all types of economic systems, in a free market economy, manufacturing is usually directed toward the mass production of products for sale to consumers at a profit. In a collectivist economy, manufacturing is more directed by the state to supply a centrally planned economy. In mixed market economies, manufacturing occurs under some degree of government regulation, modern manufacturing includes all intermediate processes required the production and integration of a products components. Some industries, such as semiconductor and steel manufacturers use the term fabrication instead, the manufacturing sector is closely connected with engineering and industrial design. Examples of major manufacturers in North America include General Motors Corporation, General Electric, Procter & Gamble, General Dynamics, Boeing, Pfizer, examples in Europe include Volkswagen Group, Siemens, and Michelin. Examples in Asia include Sony, Huawei, Lenovo, Toyota, Samsung, in its earliest form, manufacturing was usually carried out by a single skilled artisan with assistants. In much of the world, the guild system protected the privileges. Before the Industrial Revolution, most manufacturing occurred in rural areas, entrepreneurs organized a number of manufacturing households into a single enterprise through the putting-out system. Toll manufacturing is an arrangement whereby a first firm with specialized equipment processes raw materials or semi-finished goods for a second firm, manufacturing provides important material support for national infrastructure and for national defense. On the other hand, most manufacturing may involve significant social and environmental costs, the clean-up costs of hazardous waste, for example, may outweigh the benefits of a product that creates it. Hazardous materials may expose workers to health risks and these costs are now well known and there is effort to address them by improving efficiency, reducing waste, using industrial symbiosis, and eliminating harmful chemicals. The negative costs of manufacturing can also be addressed legally, developed countries regulate manufacturing activity with labor laws and environmental laws. Across the globe, manufacturers can be subject to regulations and pollution taxes to offset the costs of manufacturing activities. Labor unions and craft guilds have played a role in the negotiation of worker rights. Environment laws and labor protections that are available in developed nations may not be available in the third world, tort law and product liability impose additional costs on manufacturing
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Naval architecture
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Naval architecture also known as naval engineering, is an engineering discipline dealing with the engineering design process, shipbuilding, maintenance, and operation of marine vessels and structures. Naval architecture involves basic and applied research, design, development, design evaluation, preliminary design of the vessel, its detailed design, construction, trials, operation and maintenance, launching and dry-docking are the main activities involved. Ship design calculations are required for ships being modified. Naval architecture also involves formulation of safety regulations and damage control rules, the word vessel includes every description of watercraft, including non-displacement craft, WIG craft and seaplanes, used or capable of being used as a means of transportation on water. The principal elements of architecture are, Hydrostatics concerns the conditions to which the vessel is subjected to while at rest in water. This involves computing buoyancy, and other properties, such as trim. Hydrodynamics concerns the flow of water around the hull, bow, and stern. Resistance – resistance towards motion in water primarily caused due to flow of water around the hull, powering calculation is done based on this. Propulsion – to move the vessel through water using propellers, thrusters, water jets, engine types are mainly internal combustion. Some vessels are powered using nuclear or solar energy. Ship motions – involves motions of the vessel in seaway and its responses in waves, controllability – involves controlling and maintaining position and direction of the vessel. Arrangements involves concept design, layout and access, fire protection, allocation of spaces, ergonomics, construction depends on the material used. Other joining techniques are used for materials like fibre reinforced plastic. Traditionally, naval architecture has been more craft than science, the suitability of a vessels shape was judged by looking at a half-model of a vessel or a prototype. Ungainly shapes or abrupt transitions were frowned on as being flawed and this included rigging, deck arrangements, and even fixtures. Subjective descriptors such as ungainly, full, and fine were used as a substitute for the precise terms used today. A vessel was, and still is described as having a ‘fair’ shape and these tools are used for static stability, dynamic stability, resistance, powering, hull development, structural analysis, green water modelling, and slamming analysis. Data is regularly shared in international conferences sponsored by RINA, Society of Naval Architects, computational Fluid Dynamics is being applied to predict the response of a floating body in a random sea
4.
Munich
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Munich is the capital and largest city of the German state of Bavaria, on the banks of River Isar north of the Bavarian Alps. Munich is the third largest city in Germany, after Berlin and Hamburg, the Munich Metropolitan Region is home to 5.8 million people. According to the Globalization and World Rankings Research Institute Munich is considered an alpha-world city, the name of the city is derived from the Old/Middle High German term Munichen, meaning by the monks. It derives from the monks of the Benedictine order who ran a monastery at the place that was later to become the Old Town of Munich, Munich was first mentioned in 1158. From 1255 the city was seat of the Bavarian Dukes, black and gold—the colours of the Holy Roman Empire—have been the citys official colours since the time of Ludwig the Bavarian, when it was an imperial residence. Following a final reunification of the Wittelsbachian Duchy of Bavaria, previously divided and sub-divided for more than 200 years, like wide parts of the Holy Roman Empire, the area recovered slowly economically. In 1918, during the German Revolution, the house of Wittelsbach, which governed Bavaria since 1180, was forced to abdicate in Munich. In the 1920s, Munich became home to political factions, among them the NSDAP. During World War II, Munich was heavily bombed and more than 50% of the entire city, the postwar period was characterised by American occupation until 1949 and a strong increase of population and economic power during the years of the Wirtschaftswunder after 1949. The city is home to corporations like BMW, Siemens, MAN, Linde, Allianz and MunichRE as well as many small. Munich is home to national and international authorities, major universities, major museums. Its numerous architectural attractions, international events, exhibitions and conferences. Munich is one of the most prosperous and fastest growing cities in Germany and it is a top-ranked destination for migration and expatriate location, despite being the municipality with the highest density of population in Germany. Munich nowadays hosts more than 530,000 people of foreign background, the year 1158 is assumed to be the foundation date, which is the earliest date the city is mentioned in a document. The document was signed in Augsburg, by that time the Guelph Henry the Lion, Duke of Saxony and Bavaria, had built a bridge over the river Isar next to a settlement of Benedictine monks—this was on the Old Salt Route and a toll bridge. In 1175, Munich was officially granted city status and received fortification, in 1180, with the trial of Henry the Lion, Otto I Wittelsbach became Duke of Bavaria and Munich was handed over to the Bishop of Freising. In 1240, Munich was transferred to Otto II Wittelsbach and in 1255, Duke Louis IV, a native of Munich, was elected German king in 1314 and crowned as Holy Roman Emperor in 1328. He strengthened the position by granting it the salt monopoly
5.
Diesel engine
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Diesel engines work by compressing only the air. This increases the air temperature inside the cylinder to such a degree that it ignites atomised diesel fuel that is injected into the combustion chamber. This contrasts with spark-ignition engines such as an engine or gas engine. In diesel engines, glow plugs may be used to aid starting in cold weather, or when the engine uses a lower compression-ratio, the original diesel engine operates on the constant pressure cycle of gradual combustion and produces no audible knock. Low-speed diesel engines can have an efficiency that exceeds 50%. Diesel engines may be designed as either two-stroke or four-stroke cycles and they were originally used as a more efficient replacement for stationary steam engines. Since the 1910s they have used in submarines and ships. Use in locomotives, trucks, heavy equipment and electricity generation plants followed later, in the 1930s, they slowly began to be used in a few automobiles. Since the 1970s, the use of engines in larger on-road and off-road vehicles in the US increased. According to the British Society of Motor Manufacturing and Traders, the EU average for diesel cars accounts for 50% of the total sold, including 70% in France and 38% in the UK. The worlds largest diesel engine is currently a Wärtsilä-Sulzer RTA96-C Common Rail marine diesel, the definition of a Diesel engine to many has become an engine that uses compression ignition. To some it may be an engine that uses heavy fuel oil, to others an engine that does not use spark ignition. However the original cycle proposed by Rudolf Diesel in 1892 was a constant temperature cycle which would require higher compression than what is needed for compression ignition. Diesels idea was to compress the air so tightly that the temperature of the air would exceed that of combustion, to make this more clear, let it be assumed that the subsequent combustion shall take place at a temperature of 700°. Then in that case the pressure must be sixty-four atmospheres, or for 800° centigrade the pressure must be ninety atmospheres. In later years Diesel realized his original cycle would not work, Diesel describes the cycle in his 1895 patent application. Notice that there is no longer a mention of compression temperatures exceeding the temperature of combustion, now all that is mentioned is the compression must be high enough for ignition. In 1806 Claude and Nicéphore Niépce developed the first known internal combustion engine, the Pyréolophore fuel system used a blast of air provided by a bellows to atomize Lycopodium
6.
Volkswagen Group
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Volkswagen Group, or Volkswagen Aktiengesellschaft, shortly VW AG, is a German multinational automotive manufacturing company headquartered in Wolfsburg, Lower Saxony, Germany. It designs, manufactures and distributes passenger and commercial vehicles, motorcycles, engines, in 2016, it was the largest automaker in the world with sales of 10.3 million units, overtaking Toyota. It has maintained the largest market share in Europe for over two decades and it ranked seventh in the 2016 Fortune Global 500 list of the worlds largest companies. It is divided into two divisions, the Automotive Division and the Financial Services Division, and has approximately 340 subsidiary companies. VW also has two major joint-ventures in China, the company has operations in approximately 150 countries and operates 100 production facilities across 27 countries. Volkswagen was founded in 1937 to manufacture the car which would become known as the Beetle, the companys production grew rapidly in the 1950s and 1960s, and in 1965 it acquired Auto Union, which subsequently produced the first post-war Audi models. Volkswagen launched a new generation of front-wheel drive vehicles in the 1970s, including the Passat, Polo and Golf, the companys operations in China have grown rapidly in the past decade with the country becoming its largest market. It has been traded in the United States via American depositary receipts since 1988, Volkswagen delisted from the London Stock Exchange in 2013. The state of Lower Saxony holds 12. 7% of the companys shares, Volkswagen held a 19. 9% non-controlling shareholding in Suzuki between 2009 and 2015. An international arbitration court ordered Volkswagen to sell the back to Suzuki. Suzuki paid $3. 8bn to complete the stock buy-back just hours prior to a scandal about emissions violations engulfing Volkswagen. Volkswagen was founded on 28 May 1937 in Berlin as the Gesellschaft zur Vorbereitung des Deutschen Volkswagens mbH by the National Socialist Deutsche Arbeitsfront. The purpose of the company was to manufacture the Volkswagen car, originally referred to as the Porsche Type 60, then the Volkswagen Type 1 and this vehicle was designed by Ferdinand Porsches consulting firm, and the company was backed by the support of Adolf Hitler. On 16 September 1938, Gezuvor was renamed Volkswagenwerk GmbH, only a small number of Type 60 Volkswagens were made during this time. The Fallersleben plant also manufactured the V-1 flying bomb, making the plant a major bombing target for the Allied forces, however, no British car manufacturer was interested, the vehicle does not meet the fundamental technical requirement of a motor-car. It is quite unattractive to the average buyer, to build the car commercially would be a completely uneconomic enterprise. In 1948, the Ford Motor Company of USA was offered Volkswagen, but Ernest Breech, as part of the Industrial plans for Germany, large parts of German industry, including Volkswagen, were to be dismantled. Total German car production was set at a maximum of 10% of the 1936 car production numbers
7.
Augsburg
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Augsburg is a city in Swabia, Bavaria, Germany. It was a Free Imperial City for over 500 years and it is a university town and home of the Regierungsbezirk Schwaben and the Bezirk Schwaben. Augsburg is a district and home to the institutions of the Landkreis Augsburg. It is the third-largest city in Bavaria with a population of 286,000 citizens, after Neuss and Trier, Augsburg is Germanys third oldest city, being founded by the Romans as Augusta Vindelicorum, named after the Roman emperor Augustus. Augsburg is the only German city with its own legal holiday and this gives Augsburg more legal holidays than any other region or city in Germany. Augsburg was the home of two families that rose to great prominence internationally, replacing the Medicis as Europes leading bankers, the Fugger. Augsburg lies at the convergence of the Alpine rivers Lech and Wertach, in the south extends the Lechfeld, an Outwash plain of the post ice age between the rivers Lech and Wertach, where rare primeval landscapes were preserved. The Augsburg city forest and the Lech valley heaths today rank among the most species-rich middle European habitats, on Augsburg borders the nature park Augsburg Western Woods - a large forestland. The city itself is also heavily greened, as a result, in 1997 Augsburg was the first German city to win the Europe-wide contest Entente Florale for Europes greenest and most livable city. Augsburg is surrounded by the counties Landkreis Augsburg in the west, the neighboring towns and cities are Friedberg, Königsbrunn, Stadtbergen, Neusäß, Gersthofen, Rehling, Affing, Kissing, Mering, Merching, Bobingen, Gessertshausen und Diedorf. Augsburg has a continental climate. The city was founded in 15 BC by Drusus and Tiberius as Augusta Vindelicorum, the name means Augusta of the Vindelici. This garrison camp soon became the capital of the Roman province of Raetia, thus, Augsburg was the intersection of many important European east-west and north-south connections, which later evolved as major trade routes of the Middle Ages. Around 120 AD Augsburg became the capital of the Roman province Raetia, Augsburg was sacked by the Huns in the 5th century AD, by Charlemagne in the 8th century, and by Welf of Bavaria in the 11th century, but arose each time to greater prosperity. Augsburg was granted the status of a Free Imperial City on March 9,1276 and from then until 1803, it was independent of its former overlord, the Prince-Bishop of Augsburg. Frictions between the city-state and the prince-bishops were to remain frequent however, particularly after Augsburg became Protestant and curtailed the rights, with a strategic location as intersection of trade routes to Italy, the Free Imperial City became a major trading center. Augsburg produced large quantities of goods, cloth and textiles. Augsburg became the base of two banking families that rose to prominence, the Fuggers and the Welsers
8.
Nuremberg
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Nuremberg is a city on the river Pegnitz and the Rhine–Main–Danube Canal in the German state of Bavaria, in the administrative region of Middle Franconia, about 170 kilometres north of Munich. It is the second-largest city in Bavaria, and the largest in Franconia, the population as of February 2015, is 517,498, which makes it Germanys fourteenth-largest city. The urban area also includes Fürth, Erlangen and Schwabach with a population of 763,854. The European Metropolitan Area Nuremberg has ca.3.5 million inhabitants, Nuremberg was, according to the first documentary mention of the city in 1050, the location of an Imperial castle between the East Franks and the Bavarian March of the Nordgau. From 1050 to 1571, the city expanded and rose dramatically in importance due to its location on key trade routes, Nuremberg is often referred to as having been the unofficial capital of the Holy Roman Empire, particularly because Imperial Diet and courts met at Nuremberg Castle. The Diets of Nuremberg were an important part of the structure of the empire. The increasing demand of the court and the increasing importance of the city attracted increased trade. Nuremberg soon became, with Augsburg, one of the two great trade centers on the route from Italy to Northern Europe. In 1298, the Jews of the town were accused of having desecrated the host, behind the massacre of 1298 was also the desire to combine the northern and southern parts of the city, which were divided by the Pegnitz. The Jews of the German lands suffered many massacres during the plague years, in 1349, Nurembergs Jews were subjected to a pogrom. They were burned at the stake or expelled, and a marketplace was built over the former Jewish quarter, the plague returned to the city in 1405,1435,1437,1482,1494,1520 and 1534. Charles was the patron of the Frauenkirche, built between 1352 and 1362, where the Imperial court worshipped during its stays in Nuremberg. Charles IV conferred upon the city the right to conclude alliances independently, frequent fights took place with the burgraves without, however, inflicting lasting damage upon the city. Through these and other acquisitions the city accumulated considerable territory, the Hussite Wars, recurrence of the Black Death in 1437, and the First Margrave War led to a severe fall in population in the mid-15th century. During the Middle Ages, Nurembergs literary culture was rich, varied, the cultural flowering of Nuremberg, in the 15th and 16th centuries, made it the centre of the German Renaissance. In 1525, Nuremberg accepted the Protestant Reformation, and in 1532, during the 1552 revolution against Charles V, Nuremberg tried to purchase its neutrality, but the city was attacked without a declaration of war and was forced into a disadvantageous peace. The state of affairs in the early 16th century, increased trade routes elsewhere, frequent quartering of Imperial, Swedish and League soldiers, the financial costs of the war and the cessation of trade caused irreparable damage to the city and a near-halving of the population. In 1632, the city, occupied by the forces of Gustavus Adolphus of Sweden, was besieged by the army of Imperial general Albrecht von Wallenstein, the city declined after the war and recovered its importance only in the 19th century, when it grew as an industrial centre
9.
Mechanical engineering
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Mechanical engineering is the discipline that applies the principles of engineering, physics, and materials science for the design, analysis, manufacturing, and maintenance of mechanical systems. It is the branch of engineering that involves the design, production and it is one of the oldest and broadest of the engineering disciplines. The mechanical engineering field requires an understanding of areas including mechanics, kinematics, thermodynamics, materials science, structural analysis. Mechanical engineering emerged as a field during the Industrial Revolution in Europe in the 18th century, however, Mechanical engineering science emerged in the 19th century as a result of developments in the field of physics. The field has evolved to incorporate advancements in technology, and mechanical engineers today are pursuing developments in such fields as composites, mechatronics. Mechanical engineers may work in the field of biomedical engineering, specifically with biomechanics, transport phenomena, biomechatronics, bionanotechnology. Mechanical engineering finds its application in the archives of various ancient, in ancient Greece, the works of Archimedes deeply influenced mechanics in the Western tradition and Heron of Alexandria created the first steam engine. In China, Zhang Heng improved a water clock and invented a seismometer, during the 7th to 15th century, the era called the Islamic Golden Age, there were remarkable contributions from Muslim inventors in the field of mechanical technology. Al-Jazari, who was one of them, wrote his famous Book of Knowledge of Ingenious Mechanical Devices in 1206 and he is also considered to be the inventor of such mechanical devices which now form the very basic of mechanisms, such as the crankshaft and camshaft. Newton was reluctant to publish his methods and laws for years, gottfried Wilhelm Leibniz is also credited with creating Calculus during the same time frame. On the European continent, Johann von Zimmermann founded the first factory for grinding machines in Chemnitz, education in mechanical engineering has historically been based on a strong foundation in mathematics and science. Degrees in mechanical engineering are offered at universities worldwide. In Spain, Portugal and most of South America, where neither B. Sc. nor B. Tech, programs have been adopted, the formal name for the degree is Mechanical Engineer, and the course work is based on five or six years of training. In Italy the course work is based on five years of education, and training, in Greece, the coursework is based on a five-year curriculum and the requirement of a Diploma Thesis, which upon completion a Diploma is awarded rather than a B. Sc. In Australia, mechanical engineering degrees are awarded as Bachelor of Engineering or similar nomenclature although there are a number of specialisations. The degree takes four years of study to achieve. To ensure quality in engineering degrees, Engineers Australia accredits engineering degrees awarded by Australian universities in accordance with the global Washington Accord, before the degree can be awarded, the student must complete at least 3 months of on the job work experience in an engineering firm. Similar systems are present in South Africa and are overseen by the Engineering Council of South Africa
10.
Truck
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A truck is a motor vehicle designed to transport cargo. Trucks vary greatly in size, power, and configuration, smaller varieties may be similar to some automobiles. Commercial trucks can be large and powerful, and may be configured to mount specialized equipment, such as in the case of fire trucks and concrete mixers. Modern trucks are powered by diesel engines, although small to medium size trucks with gasoline engines exist in the US. In the European Union, vehicles with a gross mass of up to 3.5 t are known as light commercial vehicles. Trucks and cars have an ancestor, the steam-powered fardier Nicolas-Joseph Cugnot built in 1769. However, steam wagons were not common until the mid-1800s, the roads of the time, built for horse and carriages, limited these vehicles to very short hauls, usually from a factory to the nearest railway station. The first semi-trailer appeared in 1881, towed by a tractor manufactured by De Dion-Bouton. In 1895 Karl Benz designed and built the first truck in history using the internal combustion engine, later that year some of Benzs trucks were modified to become the first bus by the Netphener, the first motorbus company in history. A year later, in 1896, another internal combustion engine truck was built by Gottlieb Daimler, other companies, such as Peugeot, Renault and Büssing, also built their own versions. The first truck in the United States was built by Autocar in 1899 and was available with optional 5 or 8 horsepower motors, trucks of the era mostly used two-cylinder engines and had a carrying capacity of 3,300 to 4,400 lb. In 1904,700 heavy trucks were built in the United States,1000 in 1907,6000 in 1910, after World War I, several advances were made, pneumatic tires replaced the previously common full rubber versions. Electric starters, power brakes,4,6, and 8 cylinder engines, closed cabs, the first modern semi-trailer trucks also appeared. Touring car builders such as Ford and Renault entered the heavy truck market, although it had been invented in 1890, the diesel engine was not common in trucks in Europe until the 1930s. In the United States, it took longer for diesel engines to be accepted. The word truck might come from a back-formation of truckle, meaning small wheel or pulley, from Middle English trokell, another possible source is the Latin trochus, meaning iron hoop. In turn, both sources emanate from the Greek trokhos, meaning wheel, from trekhein, the first known usage of truck was in 1611, when it referred to the small strong wheels on ships cannon carriages. In its extended usage it came to refer to carts for carrying heavy loads and its expanded application to motor-powered load carrier has been in usage since 1930, shortened from motor truck, which dates back to 1901
11.
Marine propulsion
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Marine propulsion is the mechanism or system used to generate thrust to move a ship or boat across water. Marine engineering is the discipline concerned with the design process of marine propulsion systems. Nuclear reactors producing steam are used to propel warships and icebreakers, nuclear reactors to power commercial vessels has not been adopted by the marine industry. Electric motors using electric battery storage have been used for propulsion on submarines, development in liquefied natural gas fueled engines are gaining recognition for their low emissions and cost advantages. Stirling engines, which are efficient, quieter, smoother running producing less harmful emissions than diesel engines. The Stirling engine has yet to be upscaled for larger surface ships, until the application of the coal-fired steam engine to ships in the early 19th century, oars or the wind were used to assist watercraft propulsion. Merchant ships predominantly used sail, but during periods when naval warfare depended on ships closing to ram or to fight hand-to-hand, galley were preferred for their manoeuvrability, the Greek navies that fought in the Peloponnesian War used triremes, as did the Romans at the Battle of Actium. In modern times, human propulsion is found mainly on boats or as auxiliary propulsion on sailboats. Human propulsion includes the push pole, rowing, and pedals, propulsion by sail generally consists of a sail hoisted on an erect mast, supported by stays, and controlled by lines made of rope. The development of piston-engined steamships was a complex process, early steamships were fueled by wood, later ones by coal or fuel oil. Early ships used stern or side paddle wheels, while ones used screw propellers. The first commercial success accrued to Robert Fultons North River Steamboat in US in 1807, steam propulsion progressed considerably over the rest of the 19th century. Notable developments include the surface condenser, which eliminated the use of sea water in the ships boilers. This, along with improvements in technology, permitted higher steam pressures. As the means of transmitting the power, paddle wheels gave way to more efficient screw propellers. Steam turbines were fueled by coal or, later, fuel oil or nuclear power, the marine steam turbine developed by Sir Charles Algernon Parsons raised the power-to-weight ratio. He achieved publicity by demonstrating it unofficially in the 100-foot Turbinia at the Spithead Naval Review in 1897. This facilitated a generation of high-speed liners in the first half of the 20th century, and rendered the reciprocating steam engine obsolete, first in warships, and later in merchant vessels
12.
Bus
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A bus is a road vehicle designed to carry many passengers. Buses can have a capacity as high as 300 passengers, many types of buses, such as city transit buses and inter-city coaches, charge a fare. Other types, such as elementary or secondary school buses or shuttle buses within a post-secondary education campus do not charge a fare, in many jurisdictions, bus drivers require a special licence above and beyond a regular drivers licence. Horse-drawn buses were used from the 1820s, followed by steam buses in the 1830s, the first internal combustion engine buses, or motor buses, were used in 1895. Recently, interest has been growing in hybrid electric buses, fuel cell buses, as of the 2010s, bus manufacturing is increasingly globalised, with the same designs appearing around the world. Bus is a form of the Latin word omnibus. The first horse-drawn omnibus service was started by a businessman named Stanislas Baudry in the French city of Nantes in 1823, Nantes citizens soon gave the nickname omnibus to the vehicle. The omnibus in Nantes was a success and Baudry moved to Paris, a similar service was introduced in London in 1829. The first mechanically propelled omnibus appeared on the streets of London on 22 April 1833, in parallel to the development of the bus was the invention of the electric trolleybus, typically fed through trolley poles by overhead wires. The Siemens brothers, William in England and Ernst Werner in Germany, sir William first proposed the idea in an article to the Journal of the Society of Arts in 1881 as an. arrangement by which an ordinary omnibus. The first such vehicle, the Electromote, was made by his brother Dr. Ernst Werner von Siemens and presented to the public in 1882 in Halensee, Germany. Although this experimental vehicle fulfilled all the criteria of a typical trolleybus. Max Schiemann opened a trolleybus in 1901 near Dresden, in Germany. Although this system operated only until 1904, Schiemann had developed what is now the standard trolleybus current collection system, in the early days, a few other methods of current collection were used. Leeds and Bradford became the first cities to put trolleybuses into service in Great Britain on 20 June 1911, in Siegerland, Germany, two passenger bus lines ran briefly, but unprofitably, in 1895 using a six-passenger motor carriage developed from the 1893 Benz Viktoria. Another commercial bus line using the same model Benz omnibuses ran for a time in 1898 in the rural area around Llandudno. Daimler also produced one of the earliest motor-bus models in 1898, the vehicle had a maximum speed of 18 kph and accommodated up to 20 passengers, in an enclosed area below and on an open-air platform above. With the success and popularity of bus, Daimler expanded production, selling more buses to companies in London and, in 1899, to Stockholm
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