ten+years+later

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Ten years later oxygen steelmaking became the second most important method in this country.

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Ten years later oxygen steelmaking became the second most important method in this country.

SUBJECT AREA: Paper and printing

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He was the son of Robert Hoe, a printer who improved the cylinder press invented by David Napier. At the age of 15 he entered his father's business, taking full control of it three years later. Newspaper publishers demanded ever-increasing speeds of output from the printing press, and Hoe was one of those who realized that the speed was limited by the reciprocating action of the flat-bed machine. In 1846 he constructed a rotary press in which a central cylinder carried the type and flat sheets of paper were fed to smaller impression cylinders ranged around it. This kind of press, with four impression cylinders, was first used to print the Philadelphia Public Ledger in 1847, and was able to print 8,000 papers per hour. Such presses reigned supreme for newspaper printing in many countries for twenty-five years: in 1857, for example, The Times had a ten-feeder machine making 20,000 impressions per hour. Even so, the quest for speed, now limited by the single-sheet feed, continued. William Bullock (1813–67) introduced continuous roll or web feed for the Philadelphia Inquirer in 1865, and the next year The Times followed suit with the web-fed Walter press. In 1871 Hoe devised a machine that combined all the advantages of the existing machines, producing a rotary, web, perfecting (printing on both sides of the paper at once) machine, first used in the office of the New York Tribune. Ten years later the Hoe Company devised a folding machine to fold the copies as they came off the press: the modern newspaper printing press had arrived. In addition to his contributions to the printing industry, Hoe was a good employer, arranging free evening classes and other welfare services for his apprentices.

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loving.

lover (querido).

1 lover, illicit lover, woman's lover, doxy.

2 mistress.

3^rd person singular (él/ella/ello) Present Subjunctive of Spanish verb: amantar.

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► adjetivo

1 loving, fond (de, of)

► nombre masulino o femenino

1 lover

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ADJ loving, fond

SMF (=hombre, mujer) lover; (=mujer) mistress

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masculino y femenino lover

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= mistress [mistresses, -pl.], lover, buff, sweetheart.

Ex. But the curse has no effect and, as the commentator says, 'Ten years later his daughter Jane is still Grandley's mistress' = Aunque la maldición no ha surtido efecto y, como el comentarista dice, "Diez años después su hija Jane sigue siendo todavía la amante de Grandley".

Ex. The use of electronic mail provides a means by which people (particularly lovers) can express the kinds of emotions to one another which they would be unable to do face to face.

Ex. His intriguing book will be of interest to both buffs and scholars.

Ex. Be it your sweetheart/a family member/a friend, send a heart-to-heart message and let them know how much they mean to you.

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* amante de la autodisciplina = self-disciplinarian.

* amante de la biblioteca = library lover.

* amante de la buena bebida = drink enthusiast.

* amante de la buena mesa = food enthusiast.

* amante de la cerveza = beer lover.

* amante de la disciplina = disciplinarian.

* amante de la disciplina férrea = strict disciplinarian.

* amante de la historia = history buff.

* amante de la informática = computer buff.

* amante de la literatura = literary.

* amante de la naturaleza = nature lover.

* amante de la precisión = precisionist.

* amante de la vida al aire libre = outdoor enthusiast.

* amante del cine = cinema buff, film buff, movie buff.

* amante del libro = book lover [booklover].

* amante de lo militar = military buff.

* amante de los animales = animal lover.

* amante del teatro = theatre buff.

* amante del vino = wine lover.

* amante joven = sugar baby.

* amante ricachón = sugar daddy.

* ex-amante = old flame.

* no amante de la literatura = non-literary.

* tener un amante = have + an affair.

* un amante = a little something on the side.

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masculino y femenino lover

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su amante esposo/padre her loving husband/father

es muy amante de la buena mesa he loves o is very fond of good food

es muy amante del orden he's a great one for o he's very keen on keeping things tidy ( colloq)

1 (de una persona) lover

2 (aficionado) lover

los amantes del teatro theater lovers, lovers of theater

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♦ adj

es amante de su familia he loves his family;

ser muy amante de la naturaleza/los animales to be a great nature/animal lover;

es amante de la cocina francesa he's very partial to French food;

no soy muy amante del jazz I'm not a great jazz fan

♦ nmf

1. [querido] lover

2. [aficionado]

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I adj loving;

es amante de la buena vida he’s fond of good living;

ser amante de los animales be an animal lover

II m/f en una relación lover;

los amantes de la naturaleza nature lovers

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amante adj

: loving, fond

amante nmf

: lover

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amante n lover

of QUERER.

1 darling, fondling lover, sweetheart.

Querido, querid or querido mío, my dear, my love, honey, my pet, my darling

2 mistress, kept woman, ladylove.

past participle of spanish verb: querer.

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SF mistress

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= mistress [mistresses, -pl.], honey.

Ex. But the curse has no effect and, as the commentator says, 'Ten years later his daughter Jane is still Grandley's mistress' = Aunque la maldición no ha surtido efecto y, como el comentarista dice, "Diez años después su hija Jane sigue siendo todavía la amante de Grandley".

Ex. The article ' Honey, I shrunk the kids' market' examines the mysterious decline in the profitability of the UK children's book market.

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I part → querer¹

II adj dear

III m, querida f darling

figurer [figyʀe]

➭ TABLE 1

1. transitive verb

2. intransitive verb

( = être mentionné) to appear

• figurer sur une liste/dans l'annuaire to appear on a list/in the directory

• cet article ne figure plus sur votre catalogue this item is no longer listed in your catalogue

3. reflexive verb

► se figurer to imagine

• figurez-vous que j'allais justement vous téléphoner it so happens I was just about to phone you

• je ne tiens pas à y aller, figure-toi ! believe it or not, I've no particular desire to go!

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verbe transitif to represent

verbe intransitif [nom, chose] to appear

se figurer verbe pronominal to imagine

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1. vi

2. vt

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figurer verb table: aimer

A vtr to represent.

B vi [nom, chose] to appear; ne pas figurer dans un rapport not to appear in a report; faire figurer qch dans un rapport to include sth in a report; un pompier figure parmi les victimes a fireman is among the casualties; ce plat ne figure plus au menu this dish is no longer (included) on the menu; cette mention ne figure plus dans le contrat this clause is no longer in the contract.

C se figurer vpr to imagine; je me figure le travail que cela présente I can well imagine the amount of work it involves; s'il se figure que… if he thinks that…; figure-toi que j'allais justement t'appeler as it happens ou funnily enough I was just about to call you; j'avais compris, figurez-vous! I had actually got the point!; figure-toi que je l'ai revu dix ans après! I saw him again ten years later, can you imagine!

[figyre] verbe transitif

1. [représenter] to represent, to show, to depict

2. [symboliser] to symbolize

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[figyre] verbe intransitif

1. [apparaître] to appear

2. CINÉMA to be an extra

THÉÂTRE to do a walk-on part

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se figurer verbe pronominal transitif

1. [imaginer] to imagine

2. [croire] to believe

SUBJECT AREA: Architecture and building

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The name of Le Corbusier is synonymous with the International style of modern architecture and city planning, one utilizing functionalist designs carried out in twentieth-century materials with modern methods of construction. Charles-Edouard Jeanneret, born in the watch-making town of La Chaux-de-Fonds in the Jura mountain region, was the son of a watch engraver and dial painter. In the years before 1918 he travelled widely, studying building in many countries. He learned about the use of reinforced concrete in the studio of Auguste Perret and about industrial construction under Peter Behrens. In 1917 he went to live in Paris and spent the rest of his life in France; in 1920 he adopted the name of Le Corbusier, one derived from that of his ancestors (Le Corbesier), and ten years later became a French citizen.

Le Corbusier's long working life spanned a career divided into three distinct parts. Between 1905 and 1916 he designed a number of simple and increasingly modern houses; the years 1921 to 1940 were ones of research and debate; and the twenty years from 1945 saw the blossoming of his genius. After 1917 Le Corbusier gained a reputation in Paris as an architect of advanced originality. He was particularly interested in low-cost housing and in improving accommodation for the poor. In 1923 he published Vers une architecture, in which he planned estates of mass-produced houses where all extraneous and unnecessary features were stripped away and the houses had flat roofs and plain walls: his concept of "a machine for living in". These white boxes were lifted up on stilts, his pilotis, and double-height living space was provided internally, enclosed by large areas of factory glazing. In 1922 Le Corbusier exhibited a city plan, La Ville contemporaine, in which tall blocks made from steel and concrete were set amongst large areas of parkland, replacing the older concept of city slums with the light and air of modern living. In 1925 he published Urbanisme, further developing his socialist ideals. These constituted a major reform of the industrial-city pattern, but the ideas were not taken up at that time. The Depression years of the 1930s severely curtailed architectural activity in France. Le Corbusier designed houses for the wealthy there, but most of his work prior to 1945 was overseas: his Centrosoyus Administration Building in Moscow (1929–36) and the Ministry of Education Building in Rio de Janeiro (1943) are examples. Immediately after the end of the Second World War Le Corbusier won international fame for his Unité d'habitation theme, the first example of which was built in the boulevard Michelet in Marseille in 1947–52. His answer to the problem of accommodating large numbers of people in a small space at low cost was to construct an immense all-purpose block of pre-cast concrete slabs carried on a row of massive central supports. The Marseille Unité contains 350 apartments in eight double storeys, with a storey for shops half-way up and communal facilities on the roof. In 1950 he published Le Modular, which described a system of measurement based upon the human male figure. From this was derived a relationship of human and mathematical proportions; this concept, together with the extensive use of various forms of concrete, was fundamental to Le Corbusier's later work. In the world-famous and highly personal Pilgrimage Church of Notre Dame du Haut at Ronchamp (1950–5), Le Corbusier's work was in Expressionist form, a plastic design in massive rough-cast concrete, its interior brilliantly designed and lit. His other equally famous, though less popular, ecclesiastical commission showed a contrasting theme, of "brutalist" concrete construction with uncompromisingly stark, rectangular forms. This is the Dominican Convent of Sainte Marie de la Tourette at Eveux-sur-l'Arbresle near Lyon, begun in 1956. The interior, in particular, is carefully worked out, and the lighting, from both natural and artificial sources, is indirect, angled in many directions to illuminate vistas and planes. All surfaces are carefully sloped, the angles meticulously calculated to give optimum visual effect. The crypt, below the raised choir, is painted in bright colours and lit from ceiling oculi.

One of Le Corbusier's late works, the Convent is a tour de force.

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SUBJECT AREA: Electronics and information technology

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Pascal was the son of Etienne Pascal, President of the Court of Aids. His mother died when he was 3 years old and he was brought up largely by his two sisters, one of whom was a nun at Port Royal. They moved to Paris in 1631 and again to Rouen ten years later. He received no formal education. In 1654 he was involved in a carriage accident in which he saw a mystical vision of God and from then on confined himself to philosophical rather than scientific matters. In the field of mathematics he is best known for his work on conic sections and on the laws of probability. As a youth he designed a calculating machine of which, it is said, some seventy were made. His main contribution to technology was his elucidation of the laws of hydrostatics which formed the basis of all hydrostatic machines in subsequent years. Pascal, however, did not put these laws to any practical use: that was left to the English cabinet-maker and engineer Joseph Bramah more than a century later. Suffering from indifferent health, Pascal persuaded his brother-in-law Périer to repeat the experiments of Evangelista Torricelli on the pressure of the atmosphere. This involved climbing the 4,000 ft (1,220 m) of the Puy de Dôme, a mountain close to Clermont, with a heavy mercury-in-glass barometer. The experiment was reported in the 1647 pamphlet "Expériences nouvelles touchant le vide". The Hydrostatic Law was laid down by Pascal in Traité de l'équilibre des liqueurs, published a year after his death. In this he established the fact that in a fluid at rest the pressure is transmitted equally in all directions.

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SUBJECT AREA: Paper and printing

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The name Joseph Gillott became synonymous with pen making at a time when the basic equipment for writing was undergoing a change. The quill pen had served writers for centuries, but attempts had been made since the seventeenth century to improve on it. The first major technical development was the steel nib, which began to be made c.1829. The steel nib was still little known in Birmingham in 1839, but ten years later it was in common use. Its stiffness was at first a drawback, but Gillott was among the first to improve its flexibility by introducing three slots, which later became standard practice. Mechanical methods of manufacture made the pen cheaper and improved its quality. In 1840 Gillott issued a "precept" informing the public that he was pen maker to the Queen and that he had been manufacturing pens for twenty years at his Victoria Works in Birmingham. He announced the successful reception by the public of his new patent pen. There were also special "warranted school" pens designed for the various grades of writing taught in schools. Finally, he warned against inferior imitations and recommended the public to buy only those pens stamped with his name.

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SUBJECT AREA: Domestic appliances and interiors, Textiles

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The son of a millwright, Singer was employed as an unskilled labourer at the age of 12, but later gained wide experience as a travelling machinist. He also found employment as an actor. On 16 May 1839, while living at Lockport, Illinois, he obtained his first patent for a rock-drilling machine, but he soon squandered the money he made. Then in 1849, while at Pittsburgh, he secured a patent for a wood-and metal-carving machine that he had begun five years previously; however, a boiler explosion in the factory destroyed his machine and left him penniless.

Near the end of 1850 Singer was engaged to redesign the Lerow \& Blodgett sewing machine at the Boston shop of Orson C.Phelps, where the machine was being repaired. He built an improved version in eleven days that was sufficiently different for him to patent on 12 August 1851. He formed a partnership with Phelps and G.B. Zieber and they began to market the invention. Singer soon purchased Phelps's interest, although Phelps continued to manufacture the machines. Then Edward Clark acquired a one-third interest and with Singer bought out Zieber. These two, with dark's flair for promotion and marketing, began to create a company which eventually would become the largest manufacturer of sewing machines exported worldwide, with subsidiary factories in England.

However, first Singer had to defend his patent, which was challenged by an earlier Boston inventor, Elias Howe. Although after a long lawsuit Singer had to pay royalties, it was the Singer machine which eventually captured the market because it could do continuous stitching. In 1856 the Great Sewing Machine Combination, the first important pooling arrangement in American history, was formed to share the various patents so that machines could be built without infringements and manufacture could be expanded without fear of litigation. Singer contributed his monopoly on the needle-bar cam with his 1851 patent. He secured twenty additional patents, so that his original straight-needle vertical design for lock-stitching eventually included such refinements as a continuous wheel-feed, yielding presser-foot, and improved cam for moving the needle-bar. A new model, introduced in 1856, was the first to be intended solely for use in the home.

Initially Phelps made all the machines for Singer. Then a works was established in New York where the parts were assembled by skilled workers through filing and fitting. Each machine was therefore a "one-off" but Singer machines were always advertised as the best on the market and sold at correspondingly high prices. Gradually, more specialized machine tools were acquired, but it was not until long after Singer had retired to Europe in 1863 that Clark made the change to mass production. Sales of machines numbered 810 in 1853 and 21,000 ten years later.

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(gen. vetrar, pl. vetr), m.

1) winter; miðr v., midwinter; í v., this winter; v. verðr mikill, the winter becomes cold, severe; á vetri, í vetri, last winter;

2) year (sextán vetra gamall); tíu vetrum síðarr, ten years later.

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m., gen. vetrar, dat. vetri; pl., nom. and acc. vetr, gen. vetra, dat. vetrum: it was an assimilated form anciently written vettr or vittr, qs. vintr; vitrar or vittrar (gen.), Post. (Unger) 233; vettr is freq., esp. in N. G. L.; double consonants are in vellums difficult to distinguish from single, and so tt may well have been the current form, although the Edd. give the mod. form (vetr): in poets we find, m itt sextigu v ittra, Glúm, (in a verse): vintr occurs in Icel. ballads of the 15th century, see Þryml., Völs. R., Skáld H.R., but here it is merely an imitation of Danish originals, for the word in Icel. always took the assimilated form: [Ulf. wintrus = χειμών and ἔτος; A. S., Engl., and Germ. winter; Dan.-Swed. vinter, for the assimilation of nt into tt did not prevail in the south of Scandinavia, see Gramm. p. xxx, col. 1.]

A. A winter; winter, like summer (see sumar), is a calendary period, containing 180 days, or six months of thirty days; the winter begins on the Saturday next before St. Luke’s day (old style), or on St. Luke’s day, if a Saturday. In the Gregorian style, for 1872 and 1873, vetrar-dagr fyrsti, the first winter day = Saturday, the 26th of Oct.; miðr vetr, mid-winter, the 24th of Jan.; síðasti vetrar dagr, the last winter day = Wednesday, the 23rd of April; Laugardagr skal fyrstr vera í vetri, en þaðan skal vera sex mánuðr þrjátigi nátta til sumars, K. Þ. K. 166; vetr kemr laugardaginn er næstr er fyrir Lúkas-messu, en hana sjálfa ef hlaupár ferr eptir, Rb. 490; Drottins-dagr inn fyrsti í vetri skal vera inn þriði frá messu-degi Cosmi ok Damiani, Rb. 434: as a general term, í vetr, this winter, Nj. 4; hafa blót hvern vetr, Ó. H.; Miðr vetr, Mid-winter, see above; miðs vetrar skeið, mid-winter time, Fb. i. 204; miðs vetrar blót, a sacrificial feast at mid-winter, see miðr B; á vetri, or í vetri, see prepp. á and í; mikill vetr, a cold winter, Bs. i. 873; harðr, kaldr, Kominn er kaldr vetr, initial words of a hymn.

II. = a year; as in A. S. days were reckoned by nights (see nótt), so years were counted by winters; in Ulfilas (Matt. ix. 20, Luke ii. 42, viii. 42) ἔτος is rendered by wintrus; and so at present in Icel., a person is so many ‘winters’ old; tólf vetra gamall, K. Þ. K. 134; sextán vetra gamall, Grág. i. 197; and ellipt. leaving out gamall, tólf vetra, Fms. i. 8; tíu vetrum síðarr, 61; sex tigi vetra konungr, Eg. 367; sjau vetr ena ársömu, Ver. 17 (of king Pharaoh’s dream); þeirra var vetrar-munr, difference in age of one year, Dropl. 7; for more references, see tigr B.

III. mythol., Vetr, a giant, the son of Vindsvalr or Vindlóni, Vþm., Edda i. 82.

COMPDS: vetrarblót, vetrarbók, vetrarbraut.

2. astron. the milky way, in Icel. called vetrar-braut, undoubtedly from old heathen times, although the word happens not to occur in old writers; Icel. weather-prophets use in the autumn to forecast the course of the winter, by the appearance of the milky-way; this is evidently a very old custom, whence probably the name, for in old times fortune-telling used to take place at the great autumnal feasts and sacrifices, see the references s. v. völva. vetrar-dagr, m. a winter day, N. G. L. i. 348; á vetrardag, in the winter, Fms. viii. 50, Bs. i. 324, v. l.; fyrsti vetrardagr, D. N. vi. 143, Icel. Almanack. vetrar-far, n. the course of winter; sagði hón (the Sibyl) mönnum forlög sín ok vetrar-far ok aðra hluti, Fas. ii. 506; blótuðu þeir þá til friðar ok vetrarfars góðs, Fms. iv. 235. vetrar-höll, f. the winter hall, D. N. ii. 409. vetrar-langt, n. adj. the winter long, Fms. vii. 25. vetrar-megn, n. the depth of winter;þá var vetrarmegn ok treystisk hann eigi á haf at halda, Eb. 6. vetrar-messa, u, f. ‘winter-mass’ = Oct. 14, D. N. vetrar-myki, f. winter-muck, manure, Gþl. 342. vetrar-nauð, f. ‘winter-need,’ a severe winter, Ísl. ii. 155, Lv. 206. vetrar-nótt, f. a winter’s night; þar skaltú sofa í ina fyrstu v., Fms. xi. 4. vetrar-ríki, n. = vetrarnauð, a severe winter, Eb. 290, Fbr. 41, v. l. vetrar-rúgr, m. winter rye, Gþl. 343. vetra-stefna, u, f. a winter term; nú vill hann til vetrar-stefnu jörð selja, fimmtán vetr, N. G. L. i. 92. vetra-tal, n. a number of winters, Rb. 508: years, fyrr rosknir at afli en vetra tali, Fms. i. 30, x. 230, 419. vetrar-tíð, f. winter-tide, Bb. 3. 34. vetrar-tími, a, m. winter-time, Stj. 69, 97, Bs. i. 324. vetrar-tungl, n. the winter moon, the moon when winter sets in, Icel. Almanack (Nov. 1, 1872).

B. REAL COMPDS: vetrbeit, vetrbjörg, vetrgamall, vetrgata, vetrgemlingr, vetrgestr, vetrgrið, vetrhagi, vetrhluti, vetrhringr, vetrhús, vetrliði, vetrligr, vetrlægr, vetrmessa, vetrnætr, vetrrúgr, vetrseta, vetrseti, vetrtaka, vetrtökumaðr, vetrvist.

SUBJECT AREA: Canals

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Nothing is known of Boutheroue's early life, but he later became Controller of the salt store at Sully-sur-Loire and in 1623 he was the Poor Rate and Tax Collector at Beaugency. Ten years later he was described as "King's Counsellor". In 1638, jointly with his brother-in-law Jacques Guyon, he obtained letters patent from Louis XIII authorizing them to complete the Canal de Briare, which was commenced by Cosnier to connect the Loire and the Seine but was abandoned on the death of Henri IV. In anticipation of their proposed work they were granted full proprietary rights in the canal, subject to holding the canal in fief from the king, and were ennobled. In order to raise the necessary funds they were allowed to bring in others as shareholders; a partnership was formed and included Boutheroue's brother François. After many difficulties largely stirred up by the riparian owners, the 37-mile (60 km) canal was completed and opened to navigation in 1642. Another brother, Hector, also worked on the canal and later, in 1655, directed the navigation works on the Lot.

SUBJECT AREA: Mining and extraction technology

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After Menzies conceived his idea of breaking off coal with machines in 1761, many inventors subsequently followed his proposals through into the practice of underground working. More than one century later, Garforth became one of the principal pioneers of machine-holing combined with the longwall method of working in order to reduce production costs and increase the yield of coal. Having been appointed agent to Pope \& Pearson's Collieries, West Yorkshire, in 1879, of which company he later became Managing Director and Chairman, he gathered a great deal of experience with different methods of cutting coal. The first disc machine was exhibited in London as early as 1851, and ten years later a pick machine was invented. In 1893 he introduced an improved type of deep undercutting machine, his "diamond" disc coal-cutter, driven by compressed air, which also became popular on the European continent.

Besides the considerable economic advantages it created, the use of machinery for mining coal increased the safety of working in hard and thin seams. The improvement of safety in mining technology was always his primary concern, and as a result of his inventions and his many publications he became the leading figure in the British coal mining industry at the beginning of the twentieth century; safety lamps still carry his name. In 1885 he invented a firedamp detector, and following a severe explosion in 1886 he concentrated on coal-dust experiments. From the information he obtained of the effect of stone-dust on a coal-dust explosion he proposed the stone-dust remedy to prevent explosions of coal-dust. As a result of discussions which lasted for decades and after he had been entrusted with the job of conducting the British coal-dust experiments, in 1921 an Act made it compulsory in all mines which were not naturally wet throughout to treat all roads with incombustible dust so as to ensure that the dust always consisted of a mixture containing not more than 50 per cent combustible matter. In 1901 Garforth erected a surface gallery which represented the damaged roadways of a mine and could be filled with noxious fumes to test self-contained breathing apparata. This gallery formed the model from which all the rescue-stations existing nowadays have been developed.

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SUBJECT AREA: Land transport, Railways and locomotives

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Borsig established a small works at Berlin in 1837 that ten years later had expanded sufficiently to employ 1,200 people. In that year it produced sixty-seven locomotives. Borsig copied the long-boiler type then popular in Britain and which had been exported to Germany by British manufacturers: it became the standard goods engine in Germany for many years, and the name Borsig became one of the famous names of locomotive building. In 1847 Borsig established an iron-works near Berlin that from 1851 started to produce good-quality rails; German railways previously had to import these from Britain.

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méconnaissable [mekɔnεsabl]

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adjectif unrecognizable; ( presque) barely recognizable

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méconnaissable adj ( complètement) unrecognizable; ( difficile à reconnaître) barely recognizable.

[mekɔnɛsabl] adjectif

[à peine reconnaissable] hardly recognizable

[non reconnaissable] unrecognizable

dix ans après elle était méconnaissable ten years later she had changed beyond recognition

 Ten years later, he returned to the question of oil consumption.

 We will return to this matter shortly when the Nusselt number results are presented.

 Returning to the issue of surge, the author has advanced an interesting correlation for a given impeller with several inlet swirl conditions.

    Pacte Civile de Solidarité. In legal and fiscal terms, a contract of civil partnership including most of the features of a marriage contract, but open to both heterosexual and homosexual couples. While originally introduced in 1999 to allow same-sex couples to formalise their union, ten years later, in 2009, over 90% of couples signing up to a PACS were heterosexual.

SUBJECT AREA: Mining and extraction technology

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In 1842, as a graduate of the Ecole des Mines in Liège, he became a member of the Belgian Corps Royal des Mines, which he left ten years later as Chief Engineer. By that time he had become decisively influential in the Société Anglo-Belge des Mines du Rhin, founded in 1848. After it became the Gelsenkirchen-based Bergwerkgesellschaft Dahlbusch in 1873, he became President of its Board of Directors and remained in this position until his death. Thanks to his outstanding technical and financial abilities, the company developed into one of the largest in the Ruhr coal district.

When K.G. Kind practised his shaft-boring for the company in the early 1850s but did not overcome the difficulty of making the bottom of the bore-hole watertight, Chaudron joined forces with him to solve the problem and constructed a rotary heading which was made watertight with a box stuffed with moss; rings of iron tubing were placed on this as the sinking progressed, effectively blocking off the aquiferous strata as a result of the hydrostatic pressure which helped support the weight of the tubing until it was secured permanently. The Kind-Chaudron system of boring shafts in the full section marked an important advance upon existing methods, and was completely applied for the first time at a coalmine near Mons, Belgium, in 1854–6. In Brussels Chaudron and Kind founded the Société de Fonçage par le Procédé Kind et Chaudron in 1854, and Chaudron was granted a patent the next year. Foreign patents followed and the Kind-Chaudron system was the one most frequently applied in the latter part of the nineteenth century. Altogether, under Chaudron's control, there were more than eighty shafts sunk in wet strata in Germany, Belgium, France and England.

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SUBJECT AREA: Electricity

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Faraday's father was a blacksmith recently moved south from Westmorland. The young Faraday's formal education was limited to attendance at "a Common Day School", and then he worked as an errand boy for George Riebau, a bookseller and bookbinder in London's West End. Riebau subsequently took him as an apprentice bookbinder, and Faraday seized every opportunity to read the books that came his way, especially scientific works.

A customer in the shop gave Faraday tickets to hear Sir Humphry Davy lecturing at the Royal Institution. He made notes of the lectures, bound them and sent them to Davy, asking for scientific employment. When a vacancy arose for a laboratory assistant at the Royal Institution, Davy remembered Faraday, who he took as his assistant on an 18- month tour of France, Italy and Switzerland (despite the fact that Britain and France were at war!). The tour, and especially Davy's constant company and readiness to explain matters, was a scientific education for Faraday, who returned to the Royal Institution as a competent chemist in his own right. Faraday was interested in electricity, which was then viewed as a branch of chemistry. After Oersted's announcement in 1820 that an electric current could affect a magnet, Faraday devised an arrangement in 1821 for producing continuous motion from an electric current and a magnet. This was the basis of the electric motor. Ten years later, after much thought and experiment, he achieved the converse of Oersted's effect, the production of an electric current from a magnet. This was magneto-electric induction, the basis of the electric generator.

Electrical engineers usually regard Faraday as the "father" of their profession, but Faraday himself was not primarily interested in the practical applications of his discoveries. His driving motivation was to understand the forces of nature, such as electricity and magnetism, and the relationship between them. Faraday delighted in telling others about science, and studied what made a good scientific lecturer. At the Royal Institution he introduced the Friday Evening Discourses and also the Christmas Lectures for Young People, now televised in the UK every Christmas.

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SUBJECT AREA: Steam and internal combustion engines

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Walschaert was appointed Foreman of the Brussels Midi workshops of the Belgian State Railways in 1844, when they were opened, and remained in this position until 1885. He invented his valve gear the year he took up his appointment and was allowed to fit it to a 2–2–2 locomotive in 1848, the results being excellent. It was soon adopted in Belgium and to a lesser extent in France, but although it offered accessibility, light weight and mechanical efficiency, railways elsewhere were remarkably slow to take it up. It was first used in the British Isles in 1878, on a 0–4–4 tank locomotive built to the patent of Robert Fairlie, but was not used again there until 1890. By contrast, Fairlie had already used Walchaert's valve gear in 1873, on locomotives for New Zealand, and when New Zealand Railways started to build their own locomotives in 1889 they perpetuated it. The valve gear was only introduced to the USA following a visit by an executive of the Baldwin Locomotive Works to New Zealand ten years later. Subsequently it came to be used almost everywhere there were steam locomotives. Walschaert himself invented other improvements for steam engines, but none with lasting effect.

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