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1 normal developer
Большой англо-русский и русско-английский словарь > normal developer
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2 normal developer
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3 normal developer
Техника: нормальный проявитель -
4 normal developer
< phot> ■ Normalentwickler m -
5 normal developer
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6 developer
1) разработчик
2) проявитель
– color developer
– compensating developer
– developer agitator
– developer regeneration
– fine-grain developer
– high-contract developer
– high-energy developer
– low-contrast developer
– negative developer
– normal developer
– positive developer
– slow developer
– tanning developer
– universal developer -
7 normal
1) обыкновенный
2) нормальный
3) перпендикуляр
4) стандартный
5) нормализованный
6) стандартен
– above normal
– below normal
– completely normal
– logarithmically normal
– normal acceleration
– normal contact
– normal danger
– normal derivative
– normal developer
– normal displacement
– normal divisor
– normal gauge
– normal kurtosis
– normal lens
– normal mode
– normal modes
– normal operation
– normal oxide
– normal phosphate
– normal plane
– normal pressure
– normal residual
– normal subgroup
– normal vector
– restore to normal
– weakly normal
asymptotically normal distribution — асимптотически-нормальное распределение
bivariate normal distribution — двумерное нормальное распределение
having normal dispersion — <phys.> нераспадный
logarithmically normal distribution — логарифмически-нормальное распределение
non-singular normal distribution — собственное нормальное распределение
normal disjunctive form — <math.> форма нормальная дизъюнктивная
reduce to normal conditions — приводить к нормальным условиям
singular normal distribution — несобственное нормальное распределение
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8 developer
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9 normal-contrast developer
Техника: нормальный проявительУниверсальный англо-русский словарь > normal-contrast developer
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10 нормальный проявитель
Большой англо-русский и русско-английский словарь > нормальный проявитель
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11 нормальный проявитель
Русско-английский технический словарь > нормальный проявитель
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12 нормальный проявитель
Русско-английский научно-технический словарь Масловского > нормальный проявитель
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13 проявитель
м. кфт. developer -
14 нормальный проявитель
Engineering: normal developer, normal-contrast developerУниверсальный русско-английский словарь > нормальный проявитель
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15 Normalentwickler
m < phot> ■ normal developer -
16 проявитель
developer, revealing reagent* * *прояви́тель м. кфт.
developerбы́стрый прояви́тель — high-energy [fast] developerвыра́внивающий прояви́тель — compensating developerдубя́щий прояви́тель — tanning developerконтра́стный прояви́тель — high-contract developerме́дленный прояви́тель — slow [low-energy] developerмелкозерни́стый прояви́тель — fine-grain developerмягкорабо́тающий прояви́тель — low-contrast developerнегати́вный прояви́тель — negative developerнорма́льный прояви́тель — normal (contrast) developerпозити́вный прояви́тель — positive developerуниверса́льный прояви́тель — universal developerфикси́рующий прояви́тель — developer-fixerцветно́й прояви́тель — colour developer -
17 нормальный остаток
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18 late
leit
1. adjective1) (coming etc after the expected or usual time: The train is late tonight; I try to be punctual but I am always late.) tarde, atrasado2) (far on in the day or night: late in the day; late at night; It was very late when I got to bed.) tarde3) (dead, especially recently: the late king.) difunto, fallecido4) (recently, but no longer, holding an office or position: Mr Allan, the late chairman, made a speech.) anterior
2. adverb1) (after the expected or usual time: He arrived late for his interview.) tarde2) (far on in the day or night: They always go to bed late.) tarde•- lateness- lately
- later on
- of late
late1 adj1. tardeyou're late, we've missed the plane llegas tarde, hemos perdido el avión2. a finales delate2 adv1. tarde2. con retrasotr[leɪt]1 (not on time) tardío,-a2 (far on in time) tarde3 euphemistic use (dead) difunto,-a, fallecido,-a4 (former) anterior5 (last-minute) de última hora1 tarde2 (recently) recientemente\SMALLIDIOMATIC EXPRESSION/SMALLof late últimamenteto be late in doing something tardar en hacer algoto keep late hours acostarse tarde1) : tardeto arrive late: llegar tardeto sleep late: dormir hasta tarde2) : a última hora, a finaleslate in the month: a finales del mes3) recently: recién, últimamenteas late as last year: todavía en el año pasado1) tardy: tardío, de retrasoto be late: llegar tarde2) : avanzadobecause of the late hour: a causa de la hora avanzada3) deceased: difunto, fallecido4) recent: reciente, últimoour late quarrel: nuestra última peleaadj.• antiguo, -a adj.• atrasado, -a adj.• avanzado, -a adj.• de fines de adj.• difunto, -a adj.• fallecido, -a adj.• finado, -a adj.• malogrado, -a adj.• moderno, -a adj.• reciente adj.• tarde adj.• tardío, -a adj.adv.• tarde adv.
I leɪtadjective later, latest1) (after correct, scheduled time)the late arrival/departure of the train — el retraso en la llegada/salida del tren
late applications will not be accepted — no se aceptarán las solicitudes que lleguen fuera de plazo or con retraso
to be late — \<\<person\>\> llegar* tarde
to make something/somebody late: she made me late for my class me hizo llegar tarde a clase; the accident made the train late el accidente hizo que el tren se retrasara; to be late FOR/WITH something: you'll be late for work/the train vas a llegar tarde al trabajo/perder el tren; I'm late with the rent — estoy atrasado con el alquiler
2)a) ( after usual time)to have a late night/breakfast — acostarse*/desayunar tarde
b) <chrysanthemum/potatoes> tardíohe was a late developer — ( physically) se desarrolló tarde; ( intellectually) maduró tarde
3)a) ( far on in time)b) (before n) <shift/bus> últimothe late film — la película de la noche or (CS) de trasnoche
in late April/summer — a finales or fines de abril/del verano
4) (before n)a) ( deceased) difunto (frml)b) ( former) antiguo
II
adverb later, latest1) (after correct, scheduled time) <arrive/leave> tarde2) ( after usual time) <work/sleep> hasta tarde; <mature/bloom> tarde, más tarde de lo normal3)a) ( recently)b)of late — últimamente, en los últimos tiempos
4) ( toward end of period)late in the morning/afternoon — a última hora de la mañana/tarde
late in the week/year — a finales de la semana/del año
he married late (in life) — se casó mayor or tarde
5) ( far on in time) tarde[leɪt] (compar later) (superl latest)late at night — tarde por la noche, bien entrada la noche
1. ADV1) (=towards end of period, day, month etc)•
late at night — muy de noche, ya entrada la noche•
late in the morning — a última hora de la mañanalate in 1992/May — a finales del año 1992/de mayo
symptoms appear only late in the disease — los síntomas aparecen solo cuando la enfermedad ya está muy avanzada
it wasn't until late in his career that he became famous — solo al final de su carrera se hizo famoso, solo en los últimos años de su carrera se hizo famoso
•
late into the night — hasta bien entrada la noche•
late that night I got a phone call — ya entrada la noche recibí una llamada de teléfono(=too late)•
too late — demasiado tarde2) (=after the usual time) [get up, go to bed] tarde•
she came late to acting — empezó a actuar ya mayor•
Liz had started learning German quite late in life — Liz había empezado a aprender alemán ya mayor•
to sleep late — levantarse tarde•
to stay up late — irse a la cama tarde, trasnochar•
to work late — trabajar hasta tarde3) (=after arranged/scheduled time) [arrive] tarde, con retrasohe arrived ten minutes late — llegó con diez minutos de retraso, llegó diez minutos tarde
•
they arrived late for dinner — llegaron tarde or con retraso a la cena•
we're running late this morning — llevamos retraso esta mañanawe're running about 40 minutes late — llevamos unos 40 minutos de retraso, llevamos un retraso de unos 40 minutos
4) (=recently)•
as late as — aún en•
of late — frm últimamente, recientementeJane Smith, late of Bristol — frm Jane Smith, domiciliada hasta hace poco en Bristol
2. ADJ1) (=towards end of period, day, month etc)late morning — última hora f de la mañana
late evening — última hora f de la tarde
in late September/spring — a finales de septiembre/de la primavera
to be in one's late thirties/forties — rondar los cuarenta/cincuenta, tener cerca de cuarenta/cincuenta años
•
it's getting late — se está haciendo tarde2) (=after arranged or scheduled time)I apologize for my late arrival — perdone/perdonen mi retraso
we apologize for the late arrival/departure of this train — les rogamos disculpen el retraso en la llegada/salida de este tren
our train was late again — nuestro tren se retrasó otra vez, nuestro tren llegó con retraso otra vez
as usual, Jim was late — como siempre, Jim llegó tarde or con retraso, como siempre, Jim se retrasó
sorry I'm late! — ¡siento llegar tarde or con retraso!
you're late! — ¡llegas tarde!
the train is 20 minutes late — el tren llega con 20 minutos de retraso, el tren lleva un retraso de 20 minutos
I was already ten minutes late — ya llegaba diez minutos tarde, ya llevaba diez minutos de retraso
•
I'm late for my train — voy a perder el tren•
a fault on the plane made us two hours late — una avería en el avión nos retrasó dos horas•
I was late with the payments — me había retrasado en los pagos3) (=after usual or normal time) [reservation, booking] de última hora; [crop, flowers] tardío•
we had a late breakfast/ lunch — desayunamos/comimos tarde•
Easter is late this year — la Semana Santa cae tarde este año•
"late opening till ten pm on Fridays" — "los viernes cerramos a las diez"•
my period is late — se me está retrasando la reglanight 1., 1)•
spring is late this year — la primavera llega tarde este año4)•
too late — demasiado tardethey tried to operate, but it was too late — intentaron operar, pero era demasiado tarde
littleit's never too late to... — nunca es demasiado tarde para...
5) (Hist, Art)late Baroque — barroco m tardío
6) (=dead) difunto7) frm (=former) antiguo3.CPDdeveloperlate edition N — edición f de última hora
late trading N — (St Ex) operaciones fpl tras el cierre
* * *
I [leɪt]adjective later, latest1) (after correct, scheduled time)the late arrival/departure of the train — el retraso en la llegada/salida del tren
late applications will not be accepted — no se aceptarán las solicitudes que lleguen fuera de plazo or con retraso
to be late — \<\<person\>\> llegar* tarde
to make something/somebody late: she made me late for my class me hizo llegar tarde a clase; the accident made the train late el accidente hizo que el tren se retrasara; to be late FOR/WITH something: you'll be late for work/the train vas a llegar tarde al trabajo/perder el tren; I'm late with the rent — estoy atrasado con el alquiler
2)a) ( after usual time)to have a late night/breakfast — acostarse*/desayunar tarde
b) <chrysanthemum/potatoes> tardíohe was a late developer — ( physically) se desarrolló tarde; ( intellectually) maduró tarde
3)a) ( far on in time)b) (before n) <shift/bus> últimothe late film — la película de la noche or (CS) de trasnoche
in late April/summer — a finales or fines de abril/del verano
4) (before n)a) ( deceased) difunto (frml)b) ( former) antiguo
II
adverb later, latest1) (after correct, scheduled time) <arrive/leave> tarde2) ( after usual time) <work/sleep> hasta tarde; <mature/bloom> tarde, más tarde de lo normal3)a) ( recently)b)of late — últimamente, en los últimos tiempos
4) ( toward end of period)late in the morning/afternoon — a última hora de la mañana/tarde
late in the week/year — a finales de la semana/del año
he married late (in life) — se casó mayor or tarde
5) ( far on in time) tardelate at night — tarde por la noche, bien entrada la noche
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19 desarrollo
m.1 development (mejora).desarrollo del producto product developmentdesarrollo sostenible sustainable development2 growth (crecimiento).pres.indicat.1st person singular (yo) present indicative of spanish verb: desarrollar.* * *1 (gen) development2 MATEMÁTICAS expansion3 DEPORTE run, course\índice de desarrollo growth ratepaís en vías de desarrollo developing country* * *noun m.* * *SM1) [de economía, industria, mercado] development2) [de teoría, tema, punto] development3) (=realización) [de proyecto, plan] carrying out; [de técnica, método] development4) [de capacidad, memoria, músculos] development5) (Mat) [de ecuación, función] expansion; [de problema] working6) [de persona, animal, planta] developmentestá en la edad del desarrollo — she's reaching puberty, she's beginning to develop
7) [de historia, acontecimiento] developmentel desarrollo de la trama — the unfolding o development of the plot
8) [de bicicleta] gear ratio* * *1)a) (Econ) developmentb) (de facultad, capacidad) developmentc) (de niño, de planta) growth, developmentd) ( de adolescente) development2) (de teoría, tema, estrategia) development3) (de acto, acontecimiento)durante el desarrollo del acto — during o in the course of proceedings
* * *= advance, amplification, building, development, evolution, blooming.Ex. I think that the most important advance that we can look forward to is a great increase in the amount of authority data in MARC form.Ex. Even with such a limitation and many later supplementations by various hands, by way of addition, correction and amplification, it falls far short of completeness.Ex. Enumerative schemes can be difficult to revise to take account of new developments.Ex. A number of ancillary factors about the development of knowledge can be examined such as the extent of self-citation and the evolution of concepts.Ex. The article 'The blooming of readers' presents a body of research that supports the notion that children can acquire reading skills without being directly taught to read.----* área en desarrollo = growth area.* autodesarrollo = self-actualisation [self-actualization, -USA].* ayuda al desarrollo = development aid.* biología del desarrollo = developmental biology.* de desarrollo = developmental.* de desarrollo rápido = fast-evolving.* desarrollo académico = academic development.* desarrollo atrofiado = arrested development.* desarrollo cronológico = chronology.* desarrollo de aplicaciones = software development, application development.* desarrollo de capacidades = capacity building.* desarrollo de la colección = collection building, collection development [collections development].* desarrollo de la identidad nacional = nation building.* desarrollo del plan de estudios = curriculum development.* desarrollo del potencial = capacity building.* desarrollo de material educativo = instructional development.* desarrollo de nuevos productos = product development.* desarrollo de programas = software development.* desarrollo de prototipos = prototyping.* desarrollo económico = economic development.* desarrollo empresarial = business development.* desarrollo estratégico = strategic development.* desarrollo industrial = industrial development.* desarrollo infantil = child development.* desarrollo mental = mental development.* desarrollo nacional = national development.* desarrollo personal = self-actualisation [self-actualization, -USA].* desarrollo prenatal = prenatal development.* desarrollo profesional = professional development, career development.* desarrollo profesional del personal = staff development.* desarrollo social = social development.* desarrollo sostenible = sustainable development.* desarrollo sostenido = sustainable development.* desarrollo tardío = late start.* desarrollo temporal = temporal development, timeline [time line].* desarrollo urbanístico = urban growth.* describir el desarrollo de = trace + the development of, trace + the evolution of.* economía en vías de desarrollo = transitional economy, developing economy.* empresa dedicada al desarrollo de productos = product developer.* en desarrollo = evolving, under development.* en período de desarrollo = in ascendancy.* en pleno desarrollo = in full swing, in full gear.* en vías de desarrollo = in course of development, emergent, developing.* especialista en el desarrollo = developmentalist.* estimular el desarrollo de = stimulate + the development of.* etapa de desarrollo = stage of development.* Fondo para el Desarrollo Europeo = European Development Fund.* Fondo para el Desarrollo Regional Europeo = European Regional Development Fund.* herramienta de desarrollo = development tool.* herramientas de desarrollo = toolkit.* instituto de desarrollo = development institute.* instituto para el desarrollo = development institute.* instituto para la investigación y el desarrollo = research and development institute.* investigación y desarrollo (I+D) = research and development (R&D).* nivel de desarrollo = stage of development, developmental level, development level, level of development.* Organización para la Cooperación y el Desarrollo = Organization for Economic Cooperation and Development (OECD).* PADIS (Sistema de Información para el Desarrollo de Africa) = PADIS (Pan-African Development Information System).* país en vías de desarrollo = developing country, transitional nation, transitional economy, developing nation, emerging economy, developing economy, country with developing economy.* países en vías de desarrollo, los = developing world, the.* política de desarrollo de la colección = collection development policy.* posibilidad de desarrollo = potential for development.* retrasar el desarrollo de Algo = push back + development.* ritmo de desarrollo = pace of development.* sicología del desarrollo = developmental psychology.* teoría del desarrollo humano = developmental theory.* * *1)a) (Econ) developmentb) (de facultad, capacidad) developmentc) (de niño, de planta) growth, developmentd) ( de adolescente) development2) (de teoría, tema, estrategia) development3) (de acto, acontecimiento)durante el desarrollo del acto — during o in the course of proceedings
* * *= advance, amplification, building, development, evolution, blooming.Ex: I think that the most important advance that we can look forward to is a great increase in the amount of authority data in MARC form.
Ex: Even with such a limitation and many later supplementations by various hands, by way of addition, correction and amplification, it falls far short of completeness.Ex: Enumerative schemes can be difficult to revise to take account of new developments.Ex: A number of ancillary factors about the development of knowledge can be examined such as the extent of self-citation and the evolution of concepts.Ex: The article 'The blooming of readers' presents a body of research that supports the notion that children can acquire reading skills without being directly taught to read.* área en desarrollo = growth area.* autodesarrollo = self-actualisation [self-actualization, -USA].* ayuda al desarrollo = development aid.* biología del desarrollo = developmental biology.* de desarrollo = developmental.* de desarrollo rápido = fast-evolving.* desarrollo académico = academic development.* desarrollo atrofiado = arrested development.* desarrollo cronológico = chronology.* desarrollo de aplicaciones = software development, application development.* desarrollo de capacidades = capacity building.* desarrollo de la colección = collection building, collection development [collections development].* desarrollo de la identidad nacional = nation building.* desarrollo del plan de estudios = curriculum development.* desarrollo del potencial = capacity building.* desarrollo de material educativo = instructional development.* desarrollo de nuevos productos = product development.* desarrollo de programas = software development.* desarrollo de prototipos = prototyping.* desarrollo económico = economic development.* desarrollo empresarial = business development.* desarrollo estratégico = strategic development.* desarrollo industrial = industrial development.* desarrollo infantil = child development.* desarrollo mental = mental development.* desarrollo nacional = national development.* desarrollo personal = self-actualisation [self-actualization, -USA].* desarrollo prenatal = prenatal development.* desarrollo profesional = professional development, career development.* desarrollo profesional del personal = staff development.* desarrollo social = social development.* desarrollo sostenible = sustainable development.* desarrollo sostenido = sustainable development.* desarrollo tardío = late start.* desarrollo temporal = temporal development, timeline [time line].* desarrollo urbanístico = urban growth.* describir el desarrollo de = trace + the development of, trace + the evolution of.* economía en vías de desarrollo = transitional economy, developing economy.* empresa dedicada al desarrollo de productos = product developer.* en desarrollo = evolving, under development.* en período de desarrollo = in ascendancy.* en pleno desarrollo = in full swing, in full gear.* en vías de desarrollo = in course of development, emergent, developing.* especialista en el desarrollo = developmentalist.* estimular el desarrollo de = stimulate + the development of.* etapa de desarrollo = stage of development.* Fondo para el Desarrollo Europeo = European Development Fund.* Fondo para el Desarrollo Regional Europeo = European Regional Development Fund.* herramienta de desarrollo = development tool.* herramientas de desarrollo = toolkit.* instituto de desarrollo = development institute.* instituto para el desarrollo = development institute.* instituto para la investigación y el desarrollo = research and development institute.* investigación y desarrollo (I+D) = research and development (R&D).* nivel de desarrollo = stage of development, developmental level, development level, level of development.* Organización para la Cooperación y el Desarrollo = Organization for Economic Cooperation and Development (OECD).* PADIS (Sistema de Información para el Desarrollo de Africa) = PADIS (Pan-African Development Information System).* país en vías de desarrollo = developing country, transitional nation, transitional economy, developing nation, emerging economy, developing economy, country with developing economy.* países en vías de desarrollo, los = developing world, the.* política de desarrollo de la colección = collection development policy.* posibilidad de desarrollo = potential for development.* retrasar el desarrollo de Algo = push back + development.* ritmo de desarrollo = pace of development.* sicología del desarrollo = developmental psychology.* teoría del desarrollo humano = developmental theory.* * *A1 ( Econ) developmentpaíses en vías de desarrollo developing countries2 (de una facultad, capacidad) development3 (de un niño, de una planta) growth, development4 (de un adolescente) developmentla edad del desarrollo puberty, the age of pubertyCompuesto:desarrollo sostenible or perdurableB1 (de una teoría, un tema) development2 ( Mat) development3 (de una estrategia) developmentel desarrollo de nuevas técnicas en este campo the development o evolution of new techniques in this fieldC(de un acto, acontecimiento): contemplaron el desarrollo del desfile they watched the parade pass byintentaron impedir el normal desarrollo del acto they tried to disrupt the proceedingspara ver el desarrollo de los acontecimientos to see how things develop o turn outD (en ciclismo) ≈ gear ratio* * *
Del verbo desarrollar: ( conjugate desarrollar)
desarrollo es:
1ª persona singular (yo) presente indicativo
desarrolló es:
3ª persona singular (él/ella/usted) pretérito indicativo
Multiple Entries:
desarrollar
desarrollo
desarrollar ( conjugate desarrollar) verbo transitivo
1 ( en general) to develop
2
desarrollarse verbo pronominal
1 ( en general) to develop
2 [acto/entrevista/escena] to take place
desarrollo sustantivo masculino
development;
según el desarrollo de los acontecimientos according to how things develop
desarrollar verbo transitivo
1 to develop: ha desarrollado su musculatura desde que hace deporte, he has become more muscular since he started doing sport
(un proyecto, teoría) han desarrollado un nuevo modelo de ordenador portátil, they've developed a new type of portable computer
2 (exponer con mayor detalle) to explain
desarrollo sustantivo masculino
1 (crecimiento, progreso) development
el desarrollo industrial de la comarca, the industrial development of the area
su bebé tiene un desarrollo satisfactorio, her baby is coming along fine
2 (exposición detallada) development
(solución por pasos de un problema) working out
3 (transcurso) course: una persona se desmayó durante el desarrollo del acto, someone fainted during the ceremony
' desarrollo' also found in these entries:
Spanish:
desarrollarse
- despegue
- extensa
- extenso
- planteamiento
- retrasada
- retrasado
- retraso
- curso
- emotivo
- frenar
- ir
- marcha
- potenciar
- precoz
- progreso
- propulsar
- rápido
- retroceso
- vía
English:
allocate
- appropriate
- arrest
- boomtown
- cramp
- developing
- development
- evolution
- growth
- progress
- research
- disrupt
- grown
- swing
* * *desarrollo nm1. [mejora] development;el desarrollo económico economic development;países en vías de desarrollo developing countries;el pleno desarrollo de las capacidades intelectuales the full development of intellectual abilitiesdesarrollo sostenible sustainable development2. [crecimiento] growth;el desarrollo del ser humano human development;la edad del desarrollo (the age of) puberty3. [exposición] [de tema, teoría, idea] explanation4. [transcurso] [de negociaciones, conferencia] course;no hubo incidentes en el desarrollo de la manifestación there were no incidents in the course of the demonstration5. [realización] [de actividad, trabajo, proyecto] carrying out6. [creación] [de prototipos, técnicas, estrategias] development;investigaciones encaminadas al desarrollo de una vacuna contra el sida research aimed at developing a vaccine against AIDS7. [en bicicleta] gear ratio;mover un gran desarrollo to turn a big gear[de ecuación, problema] solving, working out* * *m development* * *desarrollo nm: development* * *desarrollo n development -
20 Edison, Thomas Alva
SUBJECT AREA: Architecture and building, Automotive engineering, Electricity, Electronics and information technology, Metallurgy, Photography, film and optics, Public utilities, Recording, Telecommunications[br]b. 11 February 1847 Milan, Ohio, USAd. 18 October 1931 Glenmont[br]American inventor and pioneer electrical developer.[br]He was the son of Samuel Edison, who was in the timber business. His schooling was delayed due to scarlet fever until 1855, when he was 8½ years old, but he was an avid reader. By the age of 14 he had a job as a newsboy on the railway from Port Huron to Detroit, a distance of sixty-three miles (101 km). He worked a fourteen-hour day with a stopover of five hours, which he spent in the Detroit Free Library. He also sold sweets on the train and, later, fruit and vegetables, and was soon making a profit of $20 a week. He then started two stores in Port Huron and used a spare freight car as a laboratory. He added a hand-printing press to produce 400 copies weekly of The Grand Trunk Herald, most of which he compiled and edited himself. He set himself to learn telegraphy from the station agent at Mount Clements, whose son he had saved from being run over by a freight car.At the age of 16 he became a telegraphist at Port Huron. In 1863 he became railway telegraphist at the busy Stratford Junction of the Grand Trunk Railroad, arranging a clock with a notched wheel to give the hourly signal which was to prove that he was awake and at his post! He left hurriedly after failing to hold a train which was nearly involved in a head-on collision. He usually worked the night shift, allowing himself time for experiments during the day. His first invention was an arrangement of two Morse registers so that a high-speed input could be decoded at a slower speed. Moving from place to place he held many positions as a telegraphist. In Boston he invented an automatic vote recorder for Congress and patented it, but the idea was rejected. This was the first of a total of 1180 patents that he was to take out during his lifetime. After six years he resigned from the Western Union Company to devote all his time to invention, his next idea being an improved ticker-tape machine for stockbrokers. He developed a duplex telegraphy system, but this was turned down by the Western Union Company. He then moved to New York.Edison found accommodation in the battery room of Law's Gold Reporting Company, sleeping in the cellar, and there his repair of a broken transmitter marked him as someone of special talents. His superior soon resigned, and he was promoted with a salary of $300 a month. Western Union paid him $40,000 for the sole rights on future improvements on the duplex telegraph, and he moved to Ward Street, Newark, New Jersey, where he employed a gathering of specialist engineers. Within a year, he married one of his employees, Mary Stilwell, when she was only 16: a daughter, Marion, was born in 1872, and two sons, Thomas and William, in 1876 and 1879, respectively.He continued to work on the automatic telegraph, a device to send out messages faster than they could be tapped out by hand: that is, over fifty words per minute or so. An earlier machine by Alexander Bain worked at up to 400 words per minute, but was not good over long distances. Edison agreed to work on improving this feature of Bain's machine for the Automatic Telegraph Company (ATC) for $40,000. He improved it to a working speed of 500 words per minute and ran a test between Washington and New York. Hoping to sell their equipment to the Post Office in Britain, ATC sent Edison to England in 1873 to negotiate. A 500-word message was to be sent from Liverpool to London every half-hour for six hours, followed by tests on 2,200 miles (3,540 km) of cable at Greenwich. Only confused results were obtained due to induction in the cable, which lay coiled in a water tank. Edison returned to New York, where he worked on his quadruplex telegraph system, tests of which proved a success between New York and Albany in December 1874. Unfortunately, simultaneous negotiation with Western Union and ATC resulted in a lawsuit.Alexander Graham Bell was granted a patent for a telephone in March 1876 while Edison was still working on the same idea. His improvements allowed the device to operate over a distance of hundreds of miles instead of only a few miles. Tests were carried out over the 106 miles (170 km) between New York and Philadelphia. Edison applied for a patent on the carbon-button transmitter in April 1877, Western Union agreeing to pay him $6,000 a year for the seventeen-year duration of the patent. In these years he was also working on the development of the electric lamp and on a duplicating machine which would make up to 3,000 copies from a stencil. In 1876–7 he moved from Newark to Menlo Park, twenty-four miles (39 km) from New York on the Pennsylvania Railway, near Elizabeth. He had bought a house there around which he built the premises that would become his "inventions factory". It was there that he began the use of his 200- page pocket notebooks, each of which lasted him about two weeks, so prolific were his ideas. When he died he left 3,400 of them filled with notes and sketches.Late in 1877 he applied for a patent for a phonograph which was granted on 19 February 1878, and by the end of the year he had formed a company to manufacture this totally new product. At the time, Edison saw the device primarily as a business aid rather than for entertainment, rather as a dictating machine. In August 1878 he was granted a British patent. In July 1878 he tried to measure the heat from the solar corona at a solar eclipse viewed from Rawlins, Wyoming, but his "tasimeter" was too sensitive.Probably his greatest achievement was "The Subdivision of the Electric Light" or the "glow bulb". He tried many materials for the filament before settling on carbon. He gave a demonstration of electric light by lighting up Menlo Park and inviting the public. Edison was, of course, faced with the problem of inventing and producing all the ancillaries which go to make up the electrical system of generation and distribution-meters, fuses, insulation, switches, cabling—even generators had to be designed and built; everything was new. He started a number of manufacturing companies to produce the various components needed.In 1881 he built the world's largest generator, which weighed 27 tons, to light 1,200 lamps at the Paris Exhibition. It was later moved to England to be used in the world's first central power station with steam engine drive at Holborn Viaduct, London. In September 1882 he started up his Pearl Street Generating Station in New York, which led to a worldwide increase in the application of electric power, particularly for lighting. At the same time as these developments, he built a 1,300yd (1,190m) electric railway at Menlo Park.On 9 August 1884 his wife died of typhoid. Using his telegraphic skills, he proposed to 19-year-old Mina Miller in Morse code while in the company of others on a train. He married her in February 1885 before buying a new house and estate at West Orange, New Jersey, building a new laboratory not far away in the Orange Valley.Edison used direct current which was limited to around 250 volts. Alternating current was largely developed by George Westinghouse and Nicola Tesla, using transformers to step up the current to a higher voltage for long-distance transmission. The use of AC gradually overtook the Edison DC system.In autumn 1888 he patented a form of cinephotography, the kinetoscope, obtaining film-stock from George Eastman. In 1893 he set up the first film studio, which was pivoted so as to catch the sun, with a hinged roof which could be raised. In 1894 kinetoscope parlours with "peep shows" were starting up in cities all over America. Competition came from the Latham Brothers with a screen-projection machine, which Edison answered with his "Vitascope", shown in New York in 1896. This showed pictures with accompanying sound, but there was some difficulty with synchronization. Edison also experimented with captions at this early date.In 1880 he filed a patent for a magnetic ore separator, the first of nearly sixty. He bought up deposits of low-grade iron ore which had been developed in the north of New Jersey. The process was a commercial success until the discovery of iron-rich ore in Minnesota rendered it uneconomic and uncompetitive. In 1898 cement rock was discovered in New Village, west of West Orange. Edison bought the land and started cement manufacture, using kilns twice the normal length and using half as much fuel to heat them as the normal type of kiln. In 1893 he met Henry Ford, who was building his second car, at an Edison convention. This started him on the development of a battery for an electric car on which he made over 9,000 experiments. In 1903 he sold his patent for wireless telegraphy "for a song" to Guglielmo Marconi.In 1910 Edison designed a prefabricated concrete house. In December 1914 fire destroyed three-quarters of the West Orange plant, but it was at once rebuilt, and with the threat of war Edison started to set up his own plants for making all the chemicals that he had previously been buying from Europe, such as carbolic acid, phenol, benzol, aniline dyes, etc. He was appointed President of the Navy Consulting Board, for whom, he said, he made some forty-five inventions, "but they were pigeonholed, every one of them". Thus did Edison find that the Navy did not take kindly to civilian interference.In 1927 he started the Edison Botanic Research Company, founded with similar investment from Ford and Firestone with the object of finding a substitute for overseas-produced rubber. In the first year he tested no fewer than 3,327 possible plants, in the second year, over 1,400, eventually developing a variety of Golden Rod which grew to 14 ft (4.3 m) in height. However, all this effort and money was wasted, due to the discovery of synthetic rubber.In October 1929 he was present at Henry Ford's opening of his Dearborn Museum to celebrate the fiftieth anniversary of the incandescent lamp, including a replica of the Menlo Park laboratory. He was awarded the Congressional Gold Medal and was elected to the American Academy of Sciences. He died in 1931 at his home, Glenmont; throughout the USA, lights were dimmed temporarily on the day of his funeral.[br]Principal Honours and DistinctionsMember of the American Academy of Sciences. Congressional Gold Medal.Further ReadingM.Josephson, 1951, Edison, Eyre \& Spottiswode.R.W.Clark, 1977, Edison, the Man who Made the Future, Macdonald \& Jane.IMcN
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