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1 senectūs
senectūs ūtis, f [senex], old age, extreme age, senility.—Only sing: hoc vitium fert senectus hominibus, T.: senectutem occasum vitae definire: vivere ad summam senectutem: confecti homines senectute: viridis, V.: tremulo gradu venit aegra senectus, O.: obductā solvatur fronte senectus, the gravity of old age, H.: Temporibus geminis canebat sparsa senectus, i. e. gray hairs, V.—Of things, antiquity, age: (tabellae) cariosa, O.: vini veteris, Iu.—Person., the goddess of old age, Old Age: tristis, V.— Old age, old men: senectus semper agens aliquid.—Fig., of style, maturity: plena litteratae senectutis oratio.* * *Isenecta, senectum ADJold, agedIIold age; old men collectively; shed snake skin -
2 peso
m.1 weight.tiene un kilo de peso it weighs a kilopeso atómico atomic weightpeso bruto gross weightpeso ligero lightweightpeso medio middleweightpeso molecular molecular weightpeso mosca flyweightpeso muerto dead weightpeso neto net weightpeso pesado heavyweight2 weight (fuerza, influencia).su palabra tiene mucho peso his word carries a lot of weight3 burden.el peso de la culpabilidad the burden of guiltquitarse un peso de encima to take a weight off one's mind4 scales (balanza).5 shot (sport).lanzamiento de peso shot put6 peso (moneda).pres.indicat.1st person singular (yo) present indicative of spanish verb: pesar.* * *1 (gen) weight3 (carga) load, burden\de peso (pesado) heavy 2 (importante) important 3 (influyente) influential 4 (convincente) strong, powerfulcaerse por su propio peso to be self-evident, be obvioushacer el peso familiar to convinceganar peso to put on weight, gain weightperder peso to lose weightquitar un peso de encima de alguien to take a weight off somebody's mindpeso bruto gross weightpeso gallo bantamweightpeso ligero lightweightpeso neto net weightpeso pesado heavyweightpeso pluma featherweight* * *noun m.1) weight2) burden3) importance* * *SM1) (Fís, Téc) weight¿cuál es tu peso? — how much do you weigh?
un vehículo de mucho/poco peso — a heavy/light vehicle
•
las telas se venden al peso — the fabrics are sold by weight•
no dar el peso — [al pesarse] [boxeador] not to make the weight; [recién nacido] to be below normal weight, be underweight; [en una categoría] not to make the grade, not come up to scratchese escultor no da el peso — that sculptor doesn't make the grade o come up to scratch
•
sostener algo en peso — to support the full weight of sth•
falto de peso — underweight•
ganar peso — to put on weight•
perder peso — to lose weight- valer su peso en oropeso específico — (lit) specific gravity; (fig) influence
peso molecular — (Quím) molecular weight
peso muerto — (Náut) (tb fig) dead weight
2) (=acción)3) [de culpa, responsabilidad] weightme quitarías un buen peso de encima — it would be a weight off my mind, you would take a weight off my mind
4) (=importancia) weight•
de peso — [persona] influential; [argumento] weighty, forcefulrazones de peso — good o sound reasons
5) (=balanza) scales pl6) (Med) heaviness7) (Dep)a) Esp (Atletismo) shotb) (Halterofilia)c) [Boxeo] weightpeso completo — CAm, Méx, Ven heavyweight
peso ligero, peso liviano — Chile, Ven lightweight
peso medio fuerte — light heavyweight, cruiserweight
8) (Econ) peso* * *1)a) (Fís, Tec) weightperder/ganar peso — to lose weight/gain o put on weight
tomarle el peso a algo — to weigh something up
b)2)a) ( carga) weight, burdenquitarle un peso de encima a alguien — to take a load o a weight off somebody's mind
me he quitado un buen peso de encima — that's a real load o weight off my mind
b) ( influencia) weightlas asociaciones de mayor peso — the most important associations, the associations which carry the most weight
c)3) (Dep)a) (Esp) ( en atletismo) shotlanzamiento de peso — shot-put, shot-putting
b) (Esp) ( en halterofilia) weightc) ( en boxeo) weight4) ( báscula) scales (pl); ( de balanza) (Chi) weight5) (Fin) peso ( unit of currency in many Latin American countries)no tiene un peso — he doesn't have a cent o penny
* * *1)a) (Fís, Tec) weightperder/ganar peso — to lose weight/gain o put on weight
tomarle el peso a algo — to weigh something up
b)2)a) ( carga) weight, burdenquitarle un peso de encima a alguien — to take a load o a weight off somebody's mind
me he quitado un buen peso de encima — that's a real load o weight off my mind
b) ( influencia) weightlas asociaciones de mayor peso — the most important associations, the associations which carry the most weight
c)3) (Dep)a) (Esp) ( en atletismo) shotlanzamiento de peso — shot-put, shot-putting
b) (Esp) ( en halterofilia) weightc) ( en boxeo) weight4) ( báscula) scales (pl); ( de balanza) (Chi) weight5) (Fin) peso ( unit of currency in many Latin American countries)no tiene un peso — he doesn't have a cent o penny
* * *peso11 = balance, weighing scales, scales.Ex: Officials are hopeful that all delivery men in the city will be equipped with balances within a month.
Ex: Weighing scales are also sometimes used to measure force rather than mass.Ex: It indicates the changes and limitations which fill the other pan of the scales and which are frequently only discovered by bitter experience.* peso de baño = bathroom scales.peso22 = burden, load, weight, toll, term weight, body weight.Ex: In information retrieval applications it was more usual for one organisation to carry most of the burden of development of the system, and then to market it to others.
Ex: By designing the floors to carry a superimposed live load of 6.5 kN/m2, it is easy to move bookshelves, reader places and other library functions to any part of the building.Ex: The vocabulary used in conjunction with PRECIS is split in two sections, one part for Entities (or things) and the other for Attributes (properties of things, for example colour, weight; activities of things, for example flow, and properties of activities, for example, slow, turbulent).Ex: Quite apart from the great toll of unasked questions, any hint of mutual antipathy between enquirer and librarian is fatal to the reference interview.Ex: Applications of these methods facilitate more effective assignment of term weights to index terms within documents and may assist searchers in the selection of search terms.Ex: The effect of Christmas time on body weight development was investigated in 46 obese patients.* aliviar a Alguien del peso de = relieve + Nombre + of the burden of.* aliviar de un peso a = relieve + the burden (on/from).* aumento de peso = weight gain.* castigar con todo el peso de la ley = punish + to the full extent of the law.* coger peso = put on + weight, gain + weight.* con todo el peso de la ley = to the full extent of the law.* control del peso = weight control.* de peso = weighty, of consequence, meaty [meatier -comp., meatiest -sup.].* de poco peso = pat, feeble.* exceso de peso = overweight.* falta de peso = underweight.* ganar peso = put on + weight, gain + weight.* gran peso = heavy weight.* hundirse bajo el peso de = collapse under + the weight of.* hundirse por el peso = bog down.* hundirse por su propio peso = sink under + its own weight.* ley de pesos y medidas = weights and measures act.* ligero de peso = lightweight [light-weight].* llevar el peso = undertake + burden.* perder peso = lose + weight.* pérdida de peso = weight loss.* peso al nacer = birthweight.* peso atómico = atomic weight.* peso de la prueba, el = burden of proof, the.* peso de la responsabilidad, el = burden of responsibility, the.* peso de nacimiento = birthweight.* peso específico = weight, specific gravity.* peso molecular = molecular weight.* peso muerto = dead weight.* peso pesado = heavy weight [heavyweight], big wheel, big shot, big noise, big wig, fat cat.* por debajo del peso normal = underweight.* problema de peso = weight problem.* quitarse un (buen) peso de encima = get + a (real) weight off + Posesivo + chest.* quitarse un peso de encima = take + a weight off + Posesivo + mind, take + a load off + Posesivo + mind.* quitar un peso de encima = remove + burden from shoulders.* quitar un peso de encima a Alguien = lift + a weight off + Posesivo + shoulders.* se cae de su peso que = it goes without saying that.* soportar el peso de Algo = carry + the burden.* soportar un peso = take + load.* tener que cargar con el peso de = be burdened with.* tener que cargar con el peso de la tradición = be burdened with + tradition.* todo el peso de la ley = full force of the law, the.* vector de peso específico = weighted vector.* * *sistema de pesos y medidas system of weights and measuresa ti no te conviene levantar esos pesos you shouldn't lift (heavy) weights like thatperder/ganar peso to lose/gain o put on weightvive preocupada por el peso she worries about her weight all the timetomarle el peso a algo to weigh sth upvaler su peso en oro to be worth one's weight in gold2al peso ‹venta/compra› by weight;‹vender/comprar› by weightCompuestos:atomic weightgross weightsu peso específico en la empresa es bien sabido por todos everyone knows he carries a lot of weight in the companymolecular weightdeadweightnet weightB1 (carga, pesadumbre) weight, burdenestá abrumado por el peso de tanta responsabilidad he's overwhelmed by the burden of so much responsibilitylleva el peso de la empresa he carries the burden of responsibility for the companyel peso de la prueba recae sobre el fiscal the onus of proof lies with the prosecutionquitarle un peso de encima a algn to take a load o a weight off sb's mindme he quitado un buen peso de encima that's a real load o weight off my mind2 (importancia, influencia) weightlas asociaciones de mayor peso the most important associations, the associations which carry the most weightsu papel tiene poco peso her role is fairly minorla agricultura es una actividad que tiene poco peso en la economía agriculture does not play a very important role in the economyla Iglesia ejerce un peso moral muy fuerte en nuestra sociedad the Church exercises a very strong moral influence in our societytodo el peso de la ley the full weight of the law3de peso ‹argumento› strong, weighty;‹razón› forcefultiene amistades de peso en la dirección she has influential friends on the boardC ( Dep)1 (en atletismo) shotlanzamiento de peso shot-put, shot-putting2 (en halterofilia) weightlevantamiento de pesos weightlifting3 (en boxeo) weightCompuestos:bantamweight● peso ligero or livianolightweight● peso medio or medianomiddleweightflyweight( Dep) heavyweightun peso pesado de la literatura/política a literary/political heavyweightfeatherweightwelterweightD1 (báscula) scales (pl)2 ( Chi) (de una balanza) weightE ( Fin) peso ( unit of currency in many Latin American countries)nunca tiene un peso he never has a cent o penny* * *
Del verbo pesar: ( conjugate pesar)
peso es:
1ª persona singular (yo) presente indicativo
pesó es:
3ª persona singular (él/ella/usted) pretérito indicativo
Multiple Entries:
pesar
peso
pesar 1 sustantivo masculino
1
a peso mío or muy a mi peso much to my regret
2
a peso de todo in spite of o despite everything;
a pesar de que even though
pesar 2 ( conjugate pesar) verbo intransitivo
1 [paquete/maleta] to be heavy;
no me pesa it's not heavy
2 ( causar arrepentimiento) (+ me/te/le etc):
me pesa haberlo ofendido I'm very sorry I offended him
3
pese a que even though;
mal que me/le pese whether I like/he likes it or not
verbo transitivo
‹ manzanas› to weigh (out)
pesarse verbo pronominal ( refl) to weigh oneself
peso sustantivo masculino
1a) (Fís, Tec) weight;◊ ganar/perder peso to gain o put on/lose weight;
peso bruto/neto gross/net weightb)
2
◊ quitarle un peso de encima a algn to take a load o a weight off sb's mind
c)
‹ razón› forceful
3 (Dep)
◊ peso ligero/mosca/pesado/pluma lightweight/flyweight/heavyweight/featherweight
4 ( báscula) scales (pl)
5 (Fin) peso ( unit of currency in many Latin American countries);◊ no tiene un peso he doesn't have a cent o penny
pesar
I verbo intransitivo
1 (tener peso físico) to weigh: esa carne pesa dos kilos, that meat weighs two kilos
2 (tener peso psíquico) to have influence: sus opiniones aún pesan en el grupo, his opinions still carry weight in the group
3 (causar arrepentimiento, dolor) to grieve: me pesa no haber ido con vosotros, I regret not having gone with you
II vtr (determinar un peso) to weigh
III sustantivo masculino
1 (pena, pesadumbre) sorrow, grief
2 (remordimiento) regret
♦ Locuciones: a pesar de, in spite of
a pesar de que, although ➣ Ver nota en aunque
peso sustantivo masculino
1 weight
ganar/perder peso, to put on/lose weight
Quím Fís peso específico, specific gravity
2 (carga, preocupación) weight, burden
3 (influencia) importance
4 (utensilio) scales
♦ Locuciones: quitarse un peso de encima, to take a load off one's mind
de peso, (una persona) influential, (un argumento) convincing
' peso' also found in these entries:
Spanish:
adelgazar
- aligerar
- bruta
- bruto
- carga
- cargar
- exceso
- kilo
- lanzamiento
- levedad
- ligera
- ligero
- mantener
- medida
- neta
- neto
- onza
- pesar
- ponderar
- según
- sopesar
- soportar
- sostener
- sustentar
- tara
- vencerse
- aguantar
- arroba
- aumentar
- aumento
- cargado
- controlar
- convertir
- distribuir
- equilibrar
- estacionar
- exceder
- gordura
- igual
- justo
- lanzador
- levantar
- mínimo
- moneda
- perder
- propina
- rebajar
- unidad
English:
avoid
- back
- bear
- compelling
- dead weight
- feather weight
- flyweight
- gain
- heaviness
- heavyweight
- hold
- lb
- lift
- lighten
- lightweight
- load
- middleweight
- outweigh
- overweight
- pound
- quibble
- shed
- shot
- stand
- sustain
- weight
- weight-watching
- welterweight
- clout
- dead
- excess
- hundred
- lose
- over
- peso
- put
- slim
- stone
- strain
- strong
- support
- under
- weighty
* * *peso nm1. [en general] weight;tiene un kilo de peso it weighs a kilo;ganar/perder peso to gain/lose weight;vender algo al peso to sell sth by weight;de peso [razones] weighty, sound;[persona] influential;caer por su propio peso to be self-evident;pagar algo a peso de oro to pay a fortune for sth;valer su peso en oro to be worth its/his/ etc weight in goldpeso atómico atomic weight;peso bruto gross weight;Fís peso específico relative density, specific gravity; Figtiene mucho peso específico he carries a lot of weight;Quím peso molar molar weight;peso molecular molecular weight;peso muerto dead weight;peso neto net weight2. [sensación] heavy feeling;siento peso en las piernas my legs feel heavy3. [fuerza, influencia] weight;su palabra tiene mucho peso his word carries a lot of weight;el peso de sus argumentos está fuera de duda there is no disputing the force of her arguments;el vicepresidente ejerce mucho peso en la organización the vice president carries a lot of weight in the organization4. [carga, preocupación] burden;el peso de la culpabilidad the burden of guilt;quitarse un peso de encima to take a weight off one's mind5. [balanza] scales6. [moneda] peso7. Dep shot;lanzamiento de peso shot put8. [en boxeo] weightpeso gallo bantamweight;peso ligero lightweight;peso medio middleweight;peso mosca flyweight;también Fig peso pesado heavyweight;peso pluma featherweight;peso semiligero light middleweight;peso semipesado light heavyweight;peso welter welterweightno tengo un peso I'm broke;¿cuánto te costó? – no mucho, dos pesos how much did it cost you? – not much o next to nothing* * *m1 weight;ganar peso put on o gain weight;perder peso lose weight; fig become less important;de peso fig weighty;por su propio peso it goes without saying;se me quitó un peso de encima it took a real load off my mind2 FIN peso* * *peso nm1) : weight, heaviness2) : burden, responsibility3) : weight (in sports)4) báscula: scales pl5) : peso* * *peso n1. (en general) weighttiene cinco kilos de peso it is five kilos in weight / it weighs five kilos2. (deporte) shot -
3 cięża|r
Ⅰ m (G ciężaru) 1. (waga) weight- uginał się pod ciężarem bagażu he was sagging under the weight of the luggage2. (ciężki przedmiot) weight, heavy object- dźwigać ogromne ciężary to lift heavy objects- nie podniesiesz tego ciężaru you won’t lift a heavy weight like that3. przen. (brzemię) burden, weight- ciężar odpowiedzialności/obowiązków the burden of responsibility/duties- ciężar starości/sławy/zbrodni the burden of old age/fame/a crime- być/stać się dla kogoś ciężarem to be/become a burden to sb- wziąć na siebie ciężar utrzymywania kogoś/opieki nad kimś to take on the burden of supporting sb/looking after sb- na jej barkach spoczywał ciężar wychowania młodszego rodzeństwa the burden of bringing up her younger brothers and sisters rested on her shoulders4. (obowiązek) (podatkowy, pańszczyźniany) burden, obligation- ciężar płacenia podatków tax burden- nałożyć na kogoś ciężar podatku to impose taxes on sbⅡ ciężary plt pot. weights- trenować ciężary to lift weights, to pump iron pot.- □ atomowy ciężar drobinowy Chem., Fiz. relative molecular mass- ciężar atomowy Chem., Fiz. atomic weight- ciężar właściwy Chem., Fiz. specific gravity■ ciężar gatunkowy weight- sprawy o dużym ciężarze gatunkowym matters of great weight- spadł mi/jej z głowy/piersi/serca ciężar, gdy… it took a. was a (tremendous) load a. weight off my/her mind/chest when…- zdjąć a. zrzucić ciężar z serca to cast off a. get rid of a burdenThe New English-Polish, Polish-English Kościuszko foundation dictionary > cięża|r
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4 Stephenson, George
[br]b. 9 June 1781 Wylam, Northumberland, Englandd. 12 August 1848 Tapton House, Chesterfield, England[br]English engineer, "the father of railways".[br]George Stephenson was the son of the fireman of the pumping engine at Wylam colliery, and horses drew wagons of coal along the wooden rails of the Wylam wagonway past the house in which he was born and spent his earliest childhood. While still a child he worked as a cowherd, but soon moved to working at coal pits. At 17 years of age he showed sufficient mechanical talent to be placed in charge of a new pumping engine, and had already achieved a job more responsible than that of his father. Despite his position he was still illiterate, although he subsequently learned to read and write. He was largely self-educated.In 1801 he was appointed Brakesman of the winding engine at Black Callerton pit, with responsibility for lowering the miners safely to their work. Then, about two years later, he became Brakesman of a new winding engine erected by Robert Hawthorn at Willington Quay on the Tyne. Returning collier brigs discharged ballast into wagons and the engine drew the wagons up an inclined plane to the top of "Ballast Hill" for their contents to be tipped; this was one of the earliest applications of steam power to transport, other than experimentally.In 1804 Stephenson moved to West Moor pit, Killingworth, again as Brakesman. In 1811 he demonstrated his mechanical skill by successfully modifying a new and unsatisfactory atmospheric engine, a task that had defeated the efforts of others, to enable it to pump a drowned pit clear of water. The following year he was appointed Enginewright at Killingworth, in charge of the machinery in all the collieries of the "Grand Allies", the prominent coal-owning families of Wortley, Liddell and Bowes, with authorization also to work for others. He built many stationary engines and he closely examined locomotives of John Blenkinsop's type on the Kenton \& Coxlodge wagonway, as well as those of William Hedley at Wylam.It was in 1813 that Sir Thomas Liddell requested George Stephenson to build a steam locomotive for the Killingworth wagonway: Blucher made its first trial run on 25 July 1814 and was based on Blenkinsop's locomotives, although it lacked their rack-and-pinion drive. George Stephenson is credited with building the first locomotive both to run on edge rails and be driven by adhesion, an arrangement that has been the conventional one ever since. Yet Blucher was far from perfect and over the next few years, while other engineers ignored the steam locomotive, Stephenson built a succession of them, each an improvement on the last.During this period many lives were lost in coalmines from explosions of gas ignited by miners' lamps. By observation and experiment (sometimes at great personal risk) Stephenson invented a satisfactory safety lamp, working independently of the noted scientist Sir Humphry Davy who also invented such a lamp around the same time.In 1817 George Stephenson designed his first locomotive for an outside customer, the Kilmarnock \& Troon Railway, and in 1819 he laid out the Hetton Colliery Railway in County Durham, for which his brother Robert was Resident Engineer. This was the first railway to be worked entirely without animal traction: it used inclined planes with stationary engines, self-acting inclined planes powered by gravity, and locomotives.On 19 April 1821 Stephenson was introduced to Edward Pease, one of the main promoters of the Stockton \& Darlington Railway (S \& DR), which by coincidence received its Act of Parliament the same day. George Stephenson carried out a further survey, to improve the proposed line, and in this he was assisted by his 18-year-old son, Robert Stephenson, whom he had ensured received the theoretical education which he himself lacked. It is doubtful whether either could have succeeded without the other; together they were to make the steam railway practicable.At George Stephenson's instance, much of the S \& DR was laid with wrought-iron rails recently developed by John Birkinshaw at Bedlington Ironworks, Morpeth. These were longer than cast-iron rails and were not brittle: they made a track well suited for locomotives. In June 1823 George and Robert Stephenson, with other partners, founded a firm in Newcastle upon Tyne to build locomotives and rolling stock and to do general engineering work: after its Managing Partner, the firm was called Robert Stephenson \& Co.In 1824 the promoters of the Liverpool \& Manchester Railway (L \& MR) invited George Stephenson to resurvey their proposed line in order to reduce opposition to it. William James, a wealthy land agent who had become a visionary protagonist of a national railway network and had seen Stephenson's locomotives at Killingworth, had promoted the L \& MR with some merchants of Liverpool and had carried out the first survey; however, he overreached himself in business and, shortly after the invitation to Stephenson, became bankrupt. In his own survey, however, George Stephenson lacked the assistance of his son Robert, who had left for South America, and he delegated much of the detailed work to incompetent assistants. During a devastating Parliamentary examination in the spring of 1825, much of his survey was shown to be seriously inaccurate and the L \& MR's application for an Act of Parliament was refused. The railway's promoters discharged Stephenson and had their line surveyed yet again, by C.B. Vignoles.The Stockton \& Darlington Railway was, however, triumphantly opened in the presence of vast crowds in September 1825, with Stephenson himself driving the locomotive Locomotion, which had been built at Robert Stephenson \& Co.'s Newcastle works. Once the railway was at work, horse-drawn and gravity-powered traffic shared the line with locomotives: in 1828 Stephenson invented the horse dandy, a wagon at the back of a train in which a horse could travel over the gravity-operated stretches, instead of trotting behind.Meanwhile, in May 1826, the Liverpool \& Manchester Railway had successfully obtained its Act of Parliament. Stephenson was appointed Engineer in June, and since he and Vignoles proved incompatible the latter left early in 1827. The railway was built by Stephenson and his staff, using direct labour. A considerable controversy arose c. 1828 over the motive power to be used: the traffic anticipated was too great for horses, but the performance of the reciprocal system of cable haulage developed by Benjamin Thompson appeared in many respects superior to that of contemporary locomotives. The company instituted a prize competition for a better locomotive and the Rainhill Trials were held in October 1829.Robert Stephenson had been working on improved locomotive designs since his return from America in 1827, but it was the L \& MR's Treasurer, Henry Booth, who suggested the multi-tubular boiler to George Stephenson. This was incorporated into a locomotive built by Robert Stephenson for the trials: Rocket was entered by the three men in partnership. The other principal entrants were Novelty, entered by John Braithwaite and John Ericsson, and Sans Pareil, entered by Timothy Hackworth, but only Rocket, driven by George Stephenson, met all the organizers' demands; indeed, it far surpassed them and demonstrated the practicability of the long-distance steam railway. With the opening of the Liverpool \& Manchester Railway in 1830, the age of railways began.Stephenson was active in many aspects. He advised on the construction of the Belgian State Railway, of which the Brussels-Malines section, opened in 1835, was the first all-steam railway on the European continent. In England, proposals to link the L \& MR with the Midlands had culminated in an Act of Parliament for the Grand Junction Railway in 1833: this was to run from Warrington, which was already linked to the L \& MR, to Birmingham. George Stephenson had been in charge of the surveys, and for the railway's construction he and J.U. Rastrick were initially Principal Engineers, with Stephenson's former pupil Joseph Locke under them; by 1835 both Stephenson and Rastrick had withdrawn and Locke was Engineer-in-Chief. Stephenson remained much in demand elsewhere: he was particularly associated with the construction of the North Midland Railway (Derby to Leeds) and related lines. He was active in many other places and carried out, for instance, preliminary surveys for the Chester \& Holyhead and Newcastle \& Berwick Railways, which were important links in the lines of communication between London and, respectively, Dublin and Edinburgh.He eventually retired to Tapton House, Chesterfield, overlooking the North Midland. A man who was self-made (with great success) against colossal odds, he was ever reluctant, regrettably, to give others their due credit, although in retirement, immensely wealthy and full of honour, he was still able to mingle with people of all ranks.[br]Principal Honours and DistinctionsPresident, Institution of Mechanical Engineers, on its formation in 1847. Order of Leopold (Belgium) 1835. Stephenson refused both a knighthood and Fellowship of the Royal Society.Bibliography1815, jointly with Ralph Dodd, British patent no. 3,887 (locomotive drive by connecting rods directly to the wheels).1817, jointly with William Losh, British patent no. 4,067 (steam springs for locomotives, and improvements to track).Further ReadingL.T.C.Rolt, 1960, George and Robert Stephenson, Longman (the best modern biography; includes a bibliography).S.Smiles, 1874, The Lives of George and Robert Stephenson, rev. edn, London (although sycophantic, this is probably the best nineteenthcentury biography).PJGR -
5 Memory
To what extent can we lump together what goes on when you try to recall: (1) your name; (2) how you kick a football; and (3) the present location of your car keys? If we use introspective evidence as a guide, the first seems an immediate automatic response. The second may require constructive internal replay prior to our being able to produce a verbal description. The third... quite likely involves complex operational responses under the control of some general strategy system. Is any unitary search process, with a single set of characteristics and inputoutput relations, likely to cover all these cases? (Reitman, 1970, p. 485)[Semantic memory] Is a mental thesaurus, organized knowledge a person possesses about words and other verbal symbols, their meanings and referents, about relations among them, and about rules, formulas, and algorithms for the manipulation of these symbols, concepts, and relations. Semantic memory does not register perceptible properties of inputs, but rather cognitive referents of input signals. (Tulving, 1972, p. 386)The mnemonic code, far from being fixed and unchangeable, is structured and restructured along with general development. Such a restructuring of the code takes place in close dependence on the schemes of intelligence. The clearest indication of this is the observation of different types of memory organisation in accordance with the age level of a child so that a longer interval of retention without any new presentation, far from causing a deterioration of memory, may actually improve it. (Piaget & Inhelder, 1973, p. 36)4) The Logic of Some Memory Theorization Is of Dubious Worth in the History of PsychologyIf a cue was effective in memory retrieval, then one could infer it was encoded; if a cue was not effective, then it was not encoded. The logic of this theorization is "heads I win, tails you lose" and is of dubious worth in the history of psychology. We might ask how long scientists will puzzle over questions with no answers. (Solso, 1974, p. 28)We have iconic, echoic, active, working, acoustic, articulatory, primary, secondary, episodic, semantic, short-term, intermediate-term, and longterm memories, and these memories contain tags, traces, images, attributes, markers, concepts, cognitive maps, natural-language mediators, kernel sentences, relational rules, nodes, associations, propositions, higher-order memory units, and features. (Eysenck, 1977, p. 4)The problem with the memory metaphor is that storage and retrieval of traces only deals [ sic] with old, previously articulated information. Memory traces can perhaps provide a basis for dealing with the "sameness" of the present experience with previous experiences, but the memory metaphor has no mechanisms for dealing with novel information. (Bransford, McCarrell, Franks & Nitsch, 1977, p. 434)7) The Results of a Hundred Years of the Psychological Study of Memory Are Somewhat DiscouragingThe results of a hundred years of the psychological study of memory are somewhat discouraging. We have established firm empirical generalisations, but most of them are so obvious that every ten-year-old knows them anyway. We have made discoveries, but they are only marginally about memory; in many cases we don't know what to do with them, and wear them out with endless experimental variations. We have an intellectually impressive group of theories, but history offers little confidence that they will provide any meaningful insight into natural behavior. (Neisser, 1978, pp. 12-13)A schema, then is a data structure for representing the generic concepts stored in memory. There are schemata representing our knowledge about all concepts; those underlying objects, situations, events, sequences of events, actions and sequences of actions. A schema contains, as part of its specification, the network of interrelations that is believed to normally hold among the constituents of the concept in question. A schema theory embodies a prototype theory of meaning. That is, inasmuch as a schema underlying a concept stored in memory corresponds to the mean ing of that concept, meanings are encoded in terms of the typical or normal situations or events that instantiate that concept. (Rumelhart, 1980, p. 34)Memory appears to be constrained by a structure, a "syntax," perhaps at quite a low level, but it is free to be variable, deviant, even erratic at a higher level....Like the information system of language, memory can be explained in part by the abstract rules which underlie it, but only in part. The rules provide a basic competence, but they do not fully determine performance. (Campbell, 1982, pp. 228, 229)When people think about the mind, they often liken it to a physical space, with memories and ideas as objects contained within that space. Thus, we speak of ideas being in the dark corners or dim recesses of our minds, and of holding ideas in mind. Ideas may be in the front or back of our minds, or they may be difficult to grasp. With respect to the processes involved in memory, we talk about storing memories, of searching or looking for lost memories, and sometimes of finding them. An examination of common parlance, therefore, suggests that there is general adherence to what might be called the spatial metaphor. The basic assumptions of this metaphor are that memories are treated as objects stored in specific locations within the mind, and the retrieval process involves a search through the mind in order to find specific memories....However, while the spatial metaphor has shown extraordinary longevity, there have been some interesting changes over time in the precise form of analogy used. In particular, technological advances have influenced theoretical conceptualisations.... The original Greek analogies were based on wax tablets and aviaries; these were superseded by analogies involving switchboards, gramophones, tape recorders, libraries, conveyor belts, and underground maps. Most recently, the workings of human memory have been compared to computer functioning... and it has been suggested that the various memory stores found in computers have their counterparts in the human memory system. (Eysenck, 1984, pp. 79-80)Primary memory [as proposed by William James] relates to information that remains in consciousness after it has been perceived, and thus forms part of the psychological present, whereas secondary memory contains information about events that have left consciousness, and are therefore part of the psychological past. (Eysenck, 1984, p. 86)Once psychologists began to study long-term memory per se, they realized it may be divided into two main categories.... Semantic memories have to do with our general knowledge about the working of the world. We know what cars do, what stoves do, what the laws of gravity are, and so on. Episodic memories are largely events that took place at a time and place in our personal history. Remembering specific events about our own actions, about our family, and about our individual past falls into this category. With amnesia or in aging, what dims... is our personal episodic memories, save for those that are especially dear or painful to us. Our knowledge of how the world works remains pretty much intact. (Gazzaniga, 1988, p. 42)The nature of memory... provides a natural starting point for an analysis of thinking. Memory is the repository of many of the beliefs and representations that enter into thinking, and the retrievability of these representations can limit the quality of our thought. (Smith, 1990, p. 1)Historical dictionary of quotations in cognitive science > Memory
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