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121 Pousadas
Government-sponsored inns similar to Spain's paradores. In 1942, Portugal initiated a system of state-run inns, pousadas, housed in restored, historic castles, convents, manor houses, palaces, and monasteries. By 2008, this system included more than forty pousadas or inns in every region of the country and in the Azores Islands. Recently, the government-owned system came under the management of Pestana Hotels, a private group. Such tourist habitations with reasonable nightly rates have been in high demand and feature antique, period furnishings and restaurants with Portuguese cuisine. Most are located in or near towns or cities with other historic places and sites. A source of information for travelers is the official website, at www.pousadas.pt.Agueda Santo AntonioAlcácer Do Sal Dom Afonso IIAlijo Baráo de ForresterAlmeida Senhoras Das NevesAlvito Castelo De AlvitoAmares Sta. Maria Do BouroArraiolos N. Sra. Da AssuncaoBatalha Mestre De DominguesBeja São FranciscoBragança São BartolomeuCaramulo São JerónimoCondeixa-a-Nova Santa CristinaCrato Flor Da Rosa Elvas Santa Luzia Estremoz Rainha Santa Isabel Évora LoiosGeres/Canicada São Bento Guimarães N. Sa. Da Oliveira Guimarães Santa Marinha Marao São Goncalo Manteigas São Lourenco Marvao Santa Maria Miranda Do Douro Santa Catarina Monsanto Monsanto Murtosa/Aveiro Ria Obidos Castelo Palmela PalmelaPovoa Das Quartas Santa Barbara Queluz/Lisboa Dona Maria I Sagres InfanteSta. Clara-A-Velha Santa ClaraSantiago Do Cacem Quinta Da OrtigaSantiago Do Cacem São TiagoS. Pedro/Castelo De Bode São PedroSão Bras De Alportel São BrasSerpa São GensSetubal São FilipeSousel São MiguelTorrao Vale Do GaioValenca Do Minho São TeotónioViana Do Castelo Monte Santa LuziaV. Nova De Cerveira Dom DinisVila Vicosa Dom João IVAngra do Heroísmo (Terceira Island) Forte S. Sebastião Horta (Faial Island) Forte S. CruzThe history of displaying nativity scenes, portraying the birth of Christ in a manger, goes back in Catholic tradition at least to Christmas 1223, when Saint Francis of Assisi arranged a nativity scene with live figures in a town in Italy, but scholars confirm that this Christmas tradition in the arts is much older than the 13th century. Figurines depicting the Holy Family in nativity scenes were made of various materials, including wood, precious metals, and ceramics. In Portugal, an artistic tradition of making and displaying presepios in or near churches, chapels, and cathedrals reached its zenith in the arts in the 18th century during the long reign of King João V (1706-50). In the Baroque era, an artistic tradition that arrived somewhat late in Portugal, the most celebrated and talented of the nativity scene artists was the 18th-century Coimbra sculptor, Joaquim Machado de Castro (1751/2-1822), but there were other great artists in this field as well. The 18th century's most celebrated sculptor, Machado de Castro created the famous equestrian bronze statue of King José I, in Commerce Square, Lisbon. During the time of Machado de Castro's time, the ceramic nativity scene comprised of large figures and elaborate scenery became a cult, and many nativity scenes were made.Today, many of these historic artistic creations, with a strong basis in Christian tradition, can be viewed in various Portuguese museums, palaces, and churches. Some of the most famous larger nativity scenes, including those lovingly created by Machado de Castro of Coimbra, are found on display at Christmas and other times in the Estrela Basilica, the Palace of Necessidades, the Palace of Queluz, the Church of Madre de Deus, the Cathedral in Lisbon, and in other religious or museum buildings in Lisbon, Oporto, and other towns in Portugal. The ceramic nativity scene is not only sacred art but also evolved as folk and now tourist art, as Portuguese nativity scenes, with figures smaller than in the Baroque treasures on display of Machado de Castro, are for sale in a number of stores, as well as in some churches in Lisbon, Oporto, Estremoz, Évora, and other cities. The styles of the nativity scenes vary by region, by town, and by artist, and many include not only sacred figures of the story of the birth of Christ but also traditional, rural, folk figurines depicting Portuguese rural occupations from the 18th and 19th century, as well as figures from stories from the Bible. The ceramic materials of which these figures of varying sizes are made include variations of terracotta. -
122 Agricola, Georgius (Georg Bauer)
SUBJECT AREA: Metallurgy[br]b. 24 March 1494 Glauchau, Saxonyd. 21 November 1555 Chemnitz, Germany[br]German metallurgist, who wrote the book De Re Metallica under the latinized version of his name.[br]Agricola was a physician, scientist and metallurgist of note and it was this which led to the publication of De Re Metallica. He studied at Leipzig University and between 1518 and 1522 he was a school teacher in Zwickau. Eventually he settled as a physician in Chemnitz. Later he continued his medical practice at Joachimstal in the Erzgebirge. This town was newly built to serve the mining community in what was at the time the most important ore-mining field in both Germany and Europe.As a physician in the sixteenth century he would naturally have been concerned with the development of medicines, which would have led him to research the medical properties of ores and base metals. He studied the mineralogy of his area, and the mines, and the miners who were working there. He wrote several books in Latin on geology and mineralogy. His important work during that period was a glossary of mineralogical and mining terms in both Latin and German. It is, however, De Re Metallica for which he is best known. This large volume contains twelve books which deal with mining and metallurgy, including an account of glassmaking. Whilst one can understand the text of this book very easily, the quality of the illustrative woodcuts should not be neglected. These illustrations detail the mines, furnaces, forges and the plant associated with them, unfortunately the name of the artist is unknown. The importance of the work lies in the fact that it is an assemblage of information on all the methods and practices current at that time. The book was clearly intended as a textbook of mining and mineralogy and as such it would have been brought to England by German engineers when they were employed by the Mines Royal in the Keswick area in the late sixteenth century. In addition to his studies in preparation for De Re Metallica, Agricola was an "adventurer" holding shares in the Gottesgab mine in the Erzegebirge.[br]Principal Honours and Distinctions Bibliography1556, De Re Metallica, Basel; 1912, trans. H. Hoover and L.H.Hoover, London.KMBiographical history of technology > Agricola, Georgius (Georg Bauer)
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123 Appert, Nicolas
SUBJECT AREA: Agricultural and food technology[br]b. 1749 Châlons-sur-Marne, France d. 1841[br]French confectioner who invented canning as a method of food preservation.[br]As the son of an inn keeper, Nicolas Appert would have learned about pickling and brewing, but he chose to become a chef and confectioner, establishing himself in the rue des Lombards in Paris in 1780. He prospered there until about 1795, and in that year he began experimenting in ways to preserve foodstuffs, succeeding with soups, vegetables, juices, dairy products, jellies, jams and syrups. His method was to place food in glass jars, seal the jars with cork and sealing wax, then sterilize them by immersion in boiling water for a predetermined time.In 1810 the French Government offered a 12,000 franc award to anyone succeeding in preserving high-quality foodstuffs for its army and navy. Appert won the award and in 1812 used the money to open the world's first food-bottling factory, La Maison Appert, in the town of Massey, near Paris. He established agents in all the major sea ports, recognizing the marine market as his most likely customer, and supplied products to Napoleon's troops in the field. By 1820 Appert's method was in use all over the United States, in spite of the simultaneous development of other containers of tin or other metals by an English merchant, Peter Durand, and the production of canned food products by the Bermondsey firm of Donkin \& Hall, London. The latter had opened the first canning factory in England in 1811.Initially Appert used glass jars and bottles, but in 1822 he changed to tin-plated metal cans. To heat the cans he used an autoclave, which heated the water to a temperature higher than its boiling point. A hammer and chisel were needed to open cans until the invention of a can opener by an Englishman named Yates in 1855. Despite Appert's successes, he received little financial reward and died in poverty; he was buried in a common grave.[br]Bibliography1810, L'Art de conserver pendant plusieurs années toutes les sustenances animales et végétales (the Société d'Encouragement pour l'Industrie Nationale produced a report in its annual bulletin in 1809).Further ReadingEnglish historians have tended to concentrate on Bryan Donkin, who established tin cans as the primary container for long-term food preservation.J.Potin, 1891, Biographie de Nicolas Appert.1960, Canning and Packing 2–5.AP -
124 Barber, John
[br]baptized 22 October 1734 Greasley, Nottinghamshire, Englandd. 6 November 1801 Attleborough, Nuneaton, England[br]English inventor of the gas turbine and jet propulsion.[br]He was the son of Francis Barber, coalmaster of Greasley, and Elizabeth Fletcher. In his will of 1765. his uncle, John Fletcher, left the bulk of his property, including collieries and Stainsby House, Horsley Woodhouse, Derbyshire, to John Barber. Another uncle, Robert, bequeathed him property in the next village, Smalley. It is clear that at this time John Barber was a man of considerable means. On a tablet erected by John in 1767, he acknowledges his debt to his uncle John in the words "in remembrance of the man who trained him up from a youth". At this time John Barber was living at Stainsby House and had already been granted his first patent, in 1766. The contents of this patent, which included a reversible water turbine, and his subsequent patents, suggest that he was very familiar with mining equipment, including the Newcomen engine. It comes as rather a surprise that c.1784 he became bankrupt and had to leave Stainsby House, evidently moving to Attleborough. In a strange twist, a descendent of Mr Sitwell, the new owner, bought the prototype Akroyd Stuart oil engine from the Doncaster Show in 1891.The second and fifth (final) patents, in 1773 and 1792, were concerned with smelting and the third, in 1776, featured a boiler-mounted impulse steam turbine. The fourth and most important patent, in 1791, describes and engine that could be applied to the "grinding of corn, flints, etc.", "rolling, slitting, forging or battering iron and other metals", "turning of mills for spinning", "turning up coals and other minerals from mines", and "stamping of ores, raising water". Further, and importantly, the directing of the fluid stream into smelting furnaces or at the stern of ships to propel them is mentioned. The engine described comprised two retorts for heating coal or oil to produce an inflammable gas, one to operate while the other was cleansed and recharged. The resultant gas, together with the right amount of air, passed to a beam-operated pump and a water-cooled combustion chamber, and then to a water-cooled nozzle to an impulse gas turbine, which drove the pumps and provided the output. A clear description of the thermodynamic sequence known as the Joule Cycle (Brayton in the USA) is thus given. Further, the method of gas production predates Murdoch's lighting of the Soho foundry by gas.It seems unlikely that John Barber was able to get his engine to work; indeed, it was well over a hundred years before a continuous combustion chamber was achieved. However, the details of the specification, for example the use of cooling water jackets and injection, suggest that considerable experimentation had taken place.To be active in the taking out of patents over a period of 26 years is remarkable; that the best came after bankruptcy is more so. There is nothing to suggest that the cost of his experiments was the cause of his financial troubles.[br]Further ReadingA.K.Bruce, 1944, "John Barber and the gas turbine", Engineer 29 December: 506–8; 8 March (1946):216, 217.C.Lyle Cummins, 1976, Internal Fire, Carnot Press.JB -
125 Bentham, Sir Samuel
SUBJECT AREA: Ports and shipping[br]b. 11 January 1757 Englandd. 31 May 1831 London, England[br]English naval architect and engineer.[br]He was the son of Jeremiah Bentham, a lawyer. His mother died when he was an infant and his early education was at Westminster. At the age of 14 he was apprenticed to a master shipwright at Woolwich and later at Chatham Dockyard, where he made some small improvements in the fittings of ships. In 1778 he completed his apprenticeship and sailed on the Bienfaisant on a summer cruise of the Channel Fleet where he suggested and supervised several improvements to the steering gear and gun fittings.Unable to find suitable employment at home, he sailed for Russia to study naval architecture and shipbuilding, arriving at St Petersburg in 1780, whence he travelled throughout Russia as far as the frontier of China, examining mines and methods of working metals. He settled in Kritchev in 1782 and there established a small shipyard with a motley work-force. In 1784 he was appointed to command a battalion. He set up a yard on the "Panopticon" principle, with all workshops radiating from his own central office. He increased the armament of his ships greatly by strengthening the hulls and fitting guns without recoil, which resulted in a great victory over the Turks at Liman in 1788. For this he was awarded the Cross of St George and promoted to Brigadier- General. Soon after, he was appointed to a command in Siberia, where he was responsible for opening up the resources of the country greatly by developing river navigation.In 1791 he returned to England, where he was at first involved in the development of the Panopticon for his brother as well as with several other patents. In 1795 he was asked to look into the mechanization of the naval dockyards, and for the next eighteen years he was involved in improving methods of naval construction and machinery. He was responsible for the invention of the steam dredger, the caisson method of enclosing the entrances to docks, and the development of non-recoil cannonades of large calibre.His intervention in the maladministration of the naval dockyards resulted in an enquiry that brought about the clearing-away of much corruption, making him very unpopular. As a result he was sent to St Petersburg to arrange for the building of a number of ships for the British navy, in which the Russians had no intention of co-operating. On his return to England after two years he was told that his office of Inspector-General of Navy Works had been abolished and he was appointed to the Navy Board; he had several disagreements with John Rennie and in 1812 was told that this office, too, had been abolished. He went to live in France, where he stayed for thirteen years, returning in 1827 to arrange for the publication of some of his papers.There is some doubt about his use of his title: there is no record of his having received a knighthood in England, but it was assumed that he was authorized to use the title, granted to him in Russia, after his presentation to the Tsar in 1809.[br]Further ReadingMary Sophia Bentham, Life of Brigadier-General Sir Samuel Bentham, K.S.G., Formerly Inspector of Naval Works (written by his wife, who died before completing it; completed by their daughter).IMcN -
126 Bessemer, Sir Henry
SUBJECT AREA: Metallurgy[br]b. 19 January 1813 Charlton (near Hitchin), Hertfordshire, Englandd. 15 January 1898 Denmark Hill, London, England[br]English inventor of the Bessemer steelmaking process.[br]The most valuable part of Bessemer's education took place in the workshop of his inventor father. At the age of only 17 he went to London to seek his fortune and set himself up in the trade of casting art works in white metal. He went on to the embossing of metals and other materials and this led to his first major invention, whereby a date was incorporated in the die for embossing seals, thus preventing the wholesale forgeries that had previously been committed. For this, a grateful Government promised Bessemer a paid position, a promise that was never kept; recognition came only in 1879 with a belated knighthood. Bessemer turned to other inventions, mainly in metalworking, including a process for making bronze powder and gold paint. After he had overcome technical problems, the process became highly profitable, earning him a considerable income during the forty years it was in use.The Crimean War presented inventors such as Bessemer with a challenge when weaknesses in the iron used to make the cannon became apparent. In 1856, at his Baxter House premises in St Paneras, London, he tried fusing cast iron with steel. Noticing the effect of an air current on the molten mixture, he constructed a reaction vessel or converter in which air was blown through molten cast iron. There was a vigorous reaction which nearly burned the house down, and Bessemer found the iron to be almost completely decarburized, without the slag threads always present in wrought iron. Bessemer had in fact invented not only a new process but a new material, mild steel. His paper "On the manufacture of malleable iron and steel without fuel" at the British Association meeting in Cheltenham later that year created a stir. Bessemer was courted by ironmasters to license the process. However, success was short-lived, for they found that phosphorus in the original iron ore passed into the metal and rendered it useless. By chance, Bessemer had used in his trials pig-iron, derived from haematite, a phosphorus-free ore. Bessemer tried hard to overcome the problem, but lacking chemical knowledge he resigned himself to limiting his process to this kind of pig-iron. This limitation was removed in 1879 by Sidney Gilchrist Thomas, who substituted a chemically basic lining in the converter in place of the acid lining used by Bessemer. This reacted with the phosphorus to form a substance that could be tapped off with the slag, leaving the steel free from this harmful element. Even so, the new material had begun to be applied in engineering, especially for railways. The open-hearth process developed by Siemens and the Martin brothers complemented rather than competed with Bessemer steel. The widespread use of the two processes had a revolutionary effect on mechanical and structural engineering and earned Bessemer around £1 million in royalties before the patents expired.[br]Principal Honours and DistinctionsKnighted 1879. FRS 1879. Royal Society of Arts Albert Gold Medal 1872.Bibliography1905, Sir Henry Bessemer FRS: An Autobiography, London.LRD -
127 Bunsen, Robert Wilhelm
SUBJECT AREA: Chemical technology[br]b. 31 March 1811 Göttingen, Germanyd. 16 August 1899 Heidelberg, Germany[br]German chemist, pioneer of chemical spectroscopy.[br]Bunsen's father was Librarian and Professor of Linguistics at Göttingen University and Bunsen himself studied chemistry there. Obtaining his doctorate at the age of only 19, he travelled widely, meeting some of the leading chemists of the day and visiting many engineering works. On his return he held various academic posts, finally as Professor of Chemistry at Heidelberg in 1852, a post he held until his retirement in 1889.During 1837–41 Bunsen studied a series of compounds shown to contain the cacodyl (CH3)2As-group or radical. The elucidation of the structure of these compounds gave support to the radical theory in organic chemistry and earned him fame, but it also cost him the sight of an eye and other ill effects resulting from these dangerous and evil-smelling substances. With the chemist Gustav Robert Kirchhoff (1824–87), Bunsen pioneered the use of spectroscopy in chemical analysis from 1859, and with its aid he discovered the elements caesium and rubidium. He developed the Bunsen cell, a zinc-carbon primary cell, with which he isolated a number of alkali and other metals by electrodeposition from solution or electrolysis of fused chlorides.Bunsen's main work was in chemical analysis, in the course of which he devised some important laboratory equipment, such as a filter pump. The celebrated Bunsen gas burner was probably devised by his technician Peter Desdega. During 1838–44 Bunsen applied his methods of gas analysis to the study of the gases produced by blast furnaces for the production of cast iron. He demonstrated that no less than 80 per cent of the heat was lost during smelting, and that valuable gaseous by-products, such as ammonia, were also lost. Lyon Playfair in England was working along similar lines, and in 1848 the two men issued a paper, "On the gases evolved from iron furnaces", to draw attention to these drawbacks.[br]Bibliography1904, Bunsen's collected papers were published in 3 vols, Leipzig.Further ReadingG.Lockemann, 1949, Robert Wilhelm Bunsen: Lebensbild eines deutschen Forschers, Stuttgart.T.Curtin, 1961, biog. account, in E.Farber (ed.), Great Chemists, New York, pp. 575–81. Henry E.Roscoe, 1900, "Bunsen memorial lecture, 29th March 1900", Journal of theChemical Society 77:511–54.LRD -
128 Champion, Nehemiah
SUBJECT AREA: Metallurgy[br]b. 1678 probably Bristol, Englandd. 9 September 1747 probably Bristol, England[br]English merchant and brass manufacturer of Bristol.[br]Several members of Champion's Quaker family were actively engaged as merchants in Bristol during the late seventeenth and the eighteenth centuries. Port records show Nehemiah in receipt of Cornish copper ore at Bristol's Crews Hole smelting works by 1706, in association with the newly formed brassworks of the city. He later became a leading partner, managing the company some time after Abraham Darby left the Bristol works to pursue his interest at Coalbrookdale. Champion, probably in company with his father, became the largest customer for Darby's Coalbrookdale products and also acted as Agent, at least briefly, for Thomas Newcomen.A patent in 1723 related to two separate innovations introduced by the brass company.The first improved the output of brass by granulating the copper constituent and increasing its surface area. A greater proportion of zinc vapour could permeate the granules compared with the previous practice, resulting in the technique being adopted generally in the cementation process used at the time. The latter part of the same patent introduced a new type of coal-fired furnace which facilitated annealing in bulk so replacing the individual processing of pieces. The principle of batch annealing was generally adopted, although the type of furnace was later improved. A further patent, in 1739, in the name of Nehemiah, concerned overshot water-wheels possibly intended for use in conjunction with the Newcomen atmospheric pumping engine employed for recycling water by his son William.Champion's two sons, John and William, and their two sons, both named John, were all concerned with production of non-ferrous metals and responsible for patented innovations. Nehemiah, shortly before his death, is believed to have partnered William at the Warmley works to exploit his son's new patent for producing metallic zinc.[br]Bibliography1723, British patent no. 454 (granulated copper technique and coal-fired furnace). 1739, British patent no. 567 (overshot water-wheels).Further ReadingA.Raistrick, 1950, Quakers in Science and Industry, London: Bannisdale Press (for the Champion family generally).J.Day, 1973, Bristol Brass, a History of the Industry, Newton Abbot: David \& Charles (for the industrial activities of Nehemiah).JD
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