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1 скорость в момент схода с направляющих
Astronautics: launch speed, launch velocity, launching speed, launching velocityУниверсальный русско-английский словарь > скорость в момент схода с направляющих
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2 скорость пуска
1) Engineering: start-up rate2) Astronautics: launch speed, launch velocity, launching speed, launching velocity -
3 скорость вылета торпеды из торпедного аппарата
Русско-английский военно-политический словарь > скорость вылета торпеды из торпедного аппарата
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4 скорость при пуске
1) Aviation: launch speed, launching speed2) Mining: starting velocityУниверсальный русско-английский словарь > скорость при пуске
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5 скорость при старте с помощью лебёдки
Aviation: winch launch speed, winch launching speedУниверсальный русско-английский словарь > скорость при старте с помощью лебёдки
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6 скорость вылета торпеды из торпедного аппарата
Naval: torpedo launching speedУниверсальный русско-английский словарь > скорость вылета торпеды из торпедного аппарата
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7 utskytingshastighet
subst. launching speed -
8 скорость вылета торпеды из торпедного аппарата
Русско-английский морской словарь > скорость вылета торпеды из торпедного аппарата
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9 запуск космического корабля
Русско-английский военно-политический словарь > запуск космического корабля
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10 запуск
1) General subject: drive, firing (ракеты), ignition (двигателя), input, shoot (ракеты или управляемого снаряда), start, start-up (производства), startup, acceleration, establishment (проекта)2) Computers: starting3) Aviation: light up, trigger action4) Medicine: kindling (of experimental epilepsy)5) Military: cruise-out, firing (двигателя), shot6) Engineering: activation, actuation, breakaway, crank, driving, enable, initiation, launching (ракеты, спутника), lighting (ракетного двигателя), run (двигателя), speed-up, speedup, starting-up, commissioning7) Chemistry: launch9) Mathematics: start-over10) Accounting: boot11) Automobile industry: cranking12) Metallurgy: blowing-in13) Electronics: initiation (процесса), trigger15) Oil: starting up, triggering, takeoff16) Fishery: cessation of fishing, fishing ban17) Astronautics: ascent, firing (двигател), initiation of combustion, lift-off, lighting-up, starting operation, take-off18) Metrology: gate20) Network technologies: setting21) Automation: fire22) Robots: invocation23) Cables: launching (в производство), start (схемы, цепи), starting (схемы, цепи), triggering (схемы, цепи)25) Makarov: actuation (механизма), actuation (оборудования), drying (коровы), launch (ракеты, спутника), run-up, shot (ракетного двигателя), starting (двигателя), starting work, startup (двигателя)27) Aluminium industry: start-up( of the cell) (ванны) -
11 двигатель
engine, mill авто, motor* * *дви́гатель м.1. ( внутреннего сгорания) engineдви́гатель «берё́т» — the engine picks upдви́гатель вы́ключен — the engine is deadдви́гатель выхо́дит на рабо́чую ско́рость — the engine comes up to operating speedдви́гатель гло́хнет — the engine stallsглуши́ть дви́гатель — shut down [cut] an engineгоня́ть дви́гатель ав. — run up [rev up] an engineдава́ть дви́гателю прирабо́таться — run in an engineдви́гатель дыми́т — the engine smokes, the engine gives a smoky exhaustзалива́ть дви́гатель — prime an engineзапуска́ть дви́гатель без нагру́зки — start the engine lightзапуска́ть дви́гатель в тё́плом состоя́нии ( после подогрева) — start the engine warm [hot]запуска́ть дви́гатель в холо́дном состоя́нии ( без прогрева) — start the engine from the cold, start the engine coldзапуска́ть дви́гатель с включё́нной переда́чей — start up the engine in gearкомплектова́ть дви́гатель — build up an engineдви́гатель «обреза́ет» — the engine cuts outотрегули́ровать дви́гатель — tune (up) an engineдви́гатель отрыва́ется — the engine breaks looseпереводи́ть дви́гатель на друго́е горю́чее — convert an engine to another fuelперезалива́ть дви́гатель — flood [overprime] an engineповто́рно запуска́ть дви́гатель — relight an engineпрогрева́ть дви́гатель — allow an engine to warm upпрокру́чивать дви́гатель — motor an engine roundпромыва́ть дви́гатель — flush an engineдви́гатель рабо́тает — the engine is runningдви́гатель рабо́тает бесшу́мно — the engine runs quiet(ly)дви́гатель рабо́тает в номина́льном режи́ме — the engine operates at the maximum continuous powerдви́гатель рабо́тает жё́стко [неро́вно] — the engine is running roughдви́гатель рабо́тает на заря́дку — the engine is generatingдви́гатель рабо́тает неусто́йчиво — the engine runs rough(ly)дви́гатель рабо́тает неусто́йчиво на холосто́м ходу́ — the engine idles roughдви́гатель стучи́т — the engine pingsдви́гатель «схва́тывает» — the engine picks up2. ( реактивный) engine3. ( электрический) motorавари́йный дви́гатель — emergency engineавиацио́нный дви́гатель — aircraft engine, aeroengineразукомплекто́вывать авиацио́нный дви́гатель — tear down a power plantукомплекто́вывать авиацио́нный дви́гатель (агрега́тами) — build up a power plantавтомоби́льный дви́гатель — automobile [motor-car] engineа́томный дви́гатель — nuclear engineдви́гатель без надду́ва — unsupercharged engineбензи́новый дви́гатель — брит. petrol engine; амер. gasoline engineбескомпре́ссорный дви́гатель1. ( внутреннего сгорания) airless injection Diesel engine2. ( реактивный) compressionless jet engineбескрейцко́пфный дви́гатель — piston engineбескривоши́пный дви́гатель — axial engineбиротацио́нный дви́гатель — birotary engineбыстрохо́дный дви́гатель — high-speed engineдви́гатель Ва́нкеля — Wankel engineверхнекла́панный дви́гатель — overhead engineветряно́й дви́гатель — wind motor, windmill (см. тж. ветродвигатель)ве́чный дви́гатель — perpetual motionве́чный дви́гатель второ́го ро́да — perpetual motion of the second kindве́чный дви́гатель пе́рвого ро́да — perpetual motion of the first kindдви́гатель взрывно́го де́йствия — explosion engineдви́гатель вне́шне-вну́треннего сгора́ния — external-internal combustion engineдви́гатель вне́шнего сгора́ния — external combustion engineдви́гатель вну́треннего сгора́ния — internal combustion engineдви́гатель вну́треннего сгора́ния, малолитра́жный — small-displacement engineводомё́тный дви́гатель — pump-jet propulsion unitдви́гатель водяно́го охлажде́ния — water-cooled engineдви́гатель возду́шного охлажде́ния — air-cooled engineвозду́шно-реакти́вный дви́гатель — (air-breathing) jet engineвозду́шно-реакти́вный, прямото́чный дви́гатель — ramjet (engine)возду́шно-реакти́вный, пульси́рующий дви́гатель — pulse jet engine, pulsojet, resojetвозду́шно-реакти́вный, турбовинтово́й дви́гатель — turboprop engineвозду́шно-реакти́вный, турбокомпре́ссорный дви́гатель — turbojet (engine)возду́шно-реакти́вный, турбопрямото́чный дви́гатель — turboramjet [turboram] engineвозду́шный дви́гатель — air motorвысокооборо́тный дви́гатель — high-speed engineвысо́тный дви́гатель — altitude engineга́зовый дви́гатель — gas engineгазотурби́нный дви́гатель — gas-turbine engineгидравли́ческий дви́гатель — hydraulic [fluid-power] motor (см. тж. гидромотор)гиперзвуково́й дви́гатель — hypersonic engineгла́вный дви́гатель — main propulsion engine«го́лый» дви́гатель ( без агрегатов) — basic engineдви́гатель двойно́го де́йствия — double-acting engineдвухря́дный дви́гатель — double-row engineдвухта́ктный дви́гатель — two-stroke [two-cycle] engineдиафра́гменный дви́гатель — diaphragm engineди́зельный дви́гатель — брит. Diesel engine; амер. diesel (engine) (см. тж. дизель)дви́гатель для тяжё́лого то́плива — heavy-oil engineдви́гатель жи́дкостного охлажде́ния — liquid-cooled engineзабо́ртный дви́гатель — outboard motorзвездообра́зный дви́гатель — radial engineкалориза́торный дви́гатель — hot-bulb engineкарбюра́торный дви́гатель — carburettor engineкомбини́рованный дви́гатель — compound-engineкомпре́ссорный дви́гатель ( внутреннего сгорания) — air-injection engineкоромы́словый дви́гатель — beam engineкороткохо́дный дви́гатель — short-stroke engineмногобло́чный дви́гатель — multibank engineкривоши́пный дви́гатель — crank engineдви́гатель ле́вого враще́ния — left-hand engineло́дочный дви́гатель — boat engineло́дочный, подвесно́й дви́гатель — outboard engineмалооборо́тный дви́гатель — low-speed engineмногобло́чный дви́гатель — multibank engineмногокривоши́пный дви́гатель — multicrank engineмногоря́дный дви́гатель — multirow engineмногото́пливный дви́гатель1. ракет. multipropellant engine2. авто multifuel engineнеохлажда́емый дви́гатель — uncooled engineнереверси́вный дви́гатель — non-reversible engineнефтяно́й дви́гатель — crude oil engineо́пытный дви́гатель — prototype engineпарово́й дви́гатель — steam engineперви́чный дви́гатель — prime moverпневмати́ческий дви́гатель — pneumatic motorподъё́мный дви́гатель — lift engineпоршнево́й дви́гатель — piston engineпоршнево́й, возвра́тно-поступа́тельный дви́гатель — reciprocating piston engineдви́гатель пра́вого враще́ния — right-hand engineпредка́мерный дви́гатель — precombustion chamber engineдви́гатель промы́шленного назначе́ния — industrial engineдви́гатель просто́го де́йствия — single-acting engineпусково́й дви́гатель — starting engineрадиа́льный дви́гатель — radial engineраке́тный дви́гатель — rocket engineзапуска́ть раке́тный дви́гатель — fire [ignite] a rocket engineраке́тный дви́гатель двухкомпоне́нтного то́плива — bipropellant rocket motorраке́тный, жи́дкостный дви́гатель — liquid-propellant rocket engineраке́тный дви́гатель ма́лой тя́ги — low-thrust rocket engineраке́тный, ма́ршевый дви́гатель — sustainer rocket engineраке́тный дви́гатель многокра́тного примене́ния — re-usable [non-expendable] rocket engineраке́тный, многото́пливный дви́гатель — multipropellant rocket engineраке́тный дви́гатель на газообра́зном то́пливе — gaseous propellant rocket engineраке́тный дви́гатель на однокомпоне́нтном то́пливе — monopropellant rocket engineраке́тный дви́гатель на твё́рдом то́пливе — solid-propellant rocket engineраке́тный дви́гатель однокра́тного примене́ния — one-shot [expendable] rocket engineраке́тный, поворо́тный дви́гатель — steerable rocket motorраке́тный, порохово́й дви́гатель — solid-propellant rocket motorраке́тный, рулево́й дви́гатель — control rocket motor, steering rocket motorраке́тный дви́гатель с вытесни́тельной газобалло́нной пода́чей то́плива — gas-pressurized rocket motorраке́тный дви́гатель систе́мы ориента́ции — attitude-control rocket engineраке́тный дви́гатель с насо́сной пода́чей — pump-pressurized rocket motorраке́тный дви́гатель с плё́ночным охлажде́нием — film-cooled rocket engineраке́тный дви́гатель с регенерати́вным охлажде́нием — regenerative (cooled) rocket engineраке́тный, ста́ртовый дви́гатель — launching rocket engineраке́тный, тормозно́й дви́гатель — retroengineраке́тный, ускори́тельный дви́гатель — boost rocket engineреакти́вный дви́гатель1. jet engine, reaction-propulsion unit2. эл. reluctance motorреакти́вный, газотурби́нный дви́гатель — turbojet engineреакти́вный, жи́дкостный дви́гатель [ЖРД] — liquid-propellant rocket engineреакти́вный, ио́нный дви́гатель — ion rocket engineреакти́вный, магнитогидродинами́ческий дви́гатель — MHD rocket engineреакти́вный, магнитопла́зменный дви́гатель — electromagnetic rocket engineреакти́вный, многосо́пловый дви́гатель — multinozzle engineреакти́вный, пла́зменный дви́гатель — plasmajet motorреакти́вный дви́гатель систе́мы попере́чного управле́ния — roll-control jet (engine)реакти́вный дви́гатель систе́мы продо́льного управле́ния — pitch-control jet (engine)реакти́вный дви́гатель систе́мы путево́го управле́ния — yaw-control jet (engine)реакти́вный дви́гатель с регули́руемой тя́гой — variable-thrust [controllable-thrust] jet engineреакти́вный, фото́нный дви́гатель — photon rocket engineреакти́вный, электродинами́ческий дви́гатель — electromagnetic rocket engineреакти́вный, электродугово́й дви́гатель — arc-heating rocket engine, plasma-jet (engine)реакти́вный, электромагни́тный дви́гатель — electromagnetic rocket engineреакти́вный, электростати́ческий дви́гатель — electrostatic rocket engineреакти́вный, электротерми́ческий дви́гатель — thermal-electric rocket engineреакти́вный, я́дерный дви́гатель — nuclear rocket engineреверси́вный дви́гатель — reversible engineреду́кторный дви́гатель — geared engineрезе́рвный дви́гатель — stand-by [back-up] engineремо́нтный дви́гатель ав. — overhauled engineротати́вный дви́гатель — rotary engineря́дный дви́гатель — in-line [row] engineсверхзвуково́й дви́гатель — supersonic engineсвободнопоршнево́й дви́гатель — free-piston engineдви́гатель с воспламене́нием от сжа́тия — Diesel engineдви́гатель с впры́ском то́плива — fuel-injection engineдви́гатель с высо́кими эксплуатацио́нными характери́стиками — high-performance engineдви́гатель с высо́кой сте́пенью сжа́тия — high-compression engineдви́гатель с ги́льзовым распределе́нием — sleeve-valve engineсдво́енный дви́гатель — twin-engineдви́гатель сельскохозя́йственного назначе́ния — agricultural engineсери́йный дви́гатель — production engine, regular engineдви́гатель с искровы́м зажига́нием — spark-ignition engineдви́гатель с кривоши́пно-ка́мерной проду́вкой — crankcase-scavenged engineдви́гатель с надду́вом — supercharged engineдви́гатель с непосре́дственным впры́ском — direct-injection engineдви́гатель с не́сколькими карбюра́торами — multicarburettor engineдви́гатель с ни́зкой сте́пенью сжа́тия — low-compression engineспа́ренный дви́гатель — twin-engineдви́гатель с перевё́рнутыми цили́ндрами — inverted engineдви́гатель с переме́нной сте́пенью сжа́тия — variable-compression engineдви́гатель с переме́нным хо́дом — variable-stroke engineдви́гатель с пересжа́тием — supercompression engineдви́гатель с принуди́тельным возду́шным охлажде́нием — blower-cooled engineдви́гатель с самовоспламене́нием — self-ignition engineста́ртерный дви́гатель — starting engineстациона́рный дви́гатель — stationary [fixed] engineдви́гатель с турбонадду́вом — turbocharged engineсудово́й дви́гатель — marine engineдви́гатель с V-обра́зным расположе́нием цили́ндров — V-engine, vee-engine, V-type engineдви́гатель с X-обра́зным расположе́нием цили́ндров — X-engineтеплово́й дви́гатель — thermal [heat] engineтормозно́й дви́гатель — engine brakeтро́нковый дви́гатель — trunk-piston Diesel engineтурбовентиля́торный дви́гатель — ducted-fan [turbofan] engineтурбовентиля́торный дви́гатель с большо́й сте́пенью двухко́нтурности — high-bypass-ratio turbofan engineтурбовинтово́й дви́гатель — turboprop engineтурбопрямото́чный дви́гатель — turbo-ramjet engineтурбораке́тный дви́гатель — turborocket engineтурбореакти́вный дви́гатель — turbojet engineтурбореакти́вный, двухко́нтурный дви́гатель — by-pass engineтурбореакти́вный дви́гатель с форса́жной ка́мерой — turbojet engine with reheatтя́говый дви́гатель — traction engineфорси́рованный дви́гатель — augmented engineчетырёхта́ктный дви́гатель — four-stroke [four-cycle] engineэксперимента́льный дви́гатель — experimental engineэлектри́ческий дви́гатель — (electric) motor (см. тж. электродвигатель)* * * -
12 abiadura
iz.1.a. speed, spurt of speed; \abiadura handia darama it's speeding along| it's going fastb. ( zientziari d., b.b.) speed, velocityc. [ izenen aurrean ] \abiadura-kaxa gear box; \abiadura-muga speed limit; \abiadura-neurgailu speedometer2. ( hastapena) beginning, launching, inception -
13 lanciare
throwprodotto launchlanciare un'occhiata glance, take a quick looklanciare un urlo give a shout, shout* * *lanciare v.tr.1 to throw*; to fling*, to hurl, to launch: lanciare una pietra, to throw a stone; lanciare pietre contro qlcu., to throw stones at s.o.; lanciare un siluro, to launch (o to discharge o to fire) a torpedo; lanciare delle bombe, to throw (o to drop) bombs; lanciare in aria una moneta, to toss a coin; lanciare un'occhiata a qlcu., to dart (o to cast) a glance at s.o.; lanciare un grido, to give (o to utter) a cry (o to cry out); lanciò un grido di dolore, she cried out with pain; lanciare una bestemmia, to hurl a curse; lanciare minacce contro qlcu., to hurl threats at (o to launch threats against) s.o. // lanciare un cavallo, to start a horse off at full gallop // sul rettilineo lanciò l'auto a tutta velocità, he drove at full speed (o put on a spurt) on the straight // ha lanciato l'idea di fare una gita domenica prossima, he threw out the idea of going on an outing next Sunday2 (diffondere, far conoscere) to launch, to bring* out; (articoli) to push, to market: lanciare un prodotto, to launch a product; lanciare un attore, un film, to launch an actor, a film; lanciare una campagna, to launch a campaign; lanciare in commercio, to bring into trade; stanno lanciando molto il nuovo detersivo, they are launching an intensive campaign for the new washing powder; lanciare una moda, to launch (o to set) a fashion; lanciare qlcu. negli affari, to launch s.o. into business (o to start s.o. in business o to give s.o. a start) // (fin.) lanciare una società, to float a company; lanciare un prestito, to float a loan3 (inform.) (un programma) to launch, to activate, to introduce; (un sottoprogramma) to call.◘ lanciarsi v.rifl.1 to throw* oneself; to fling* (oneself), to dash, to hurl oneself: lanciare in avanti, to rush (o to dash o to shoot) forward; lanciare contro qlcu., to hurl oneself at s.o.; si lanciò fuori dalla stanza, he dashed out of the room; si lanciò nell'acqua, he threw himself (o plunged) into the water; lanciare all'inseguimento di qlcu., to dash off in pursuit of s.o.; lanciare nella mischia, to hurl oneself into the fray; lanciare col paracadute, to bale out (o to parachute)2 (fig.) (buttarsi, introdursi) to launch: lanciare in una discussione, to launch into a discussion; lanciare nella politica, to launch out into politics; lanciare con entusiasmo in una nuova attività, to fling (o to throw) oneself into a new activity with enthusiasm.* * *[lan'tʃare]1. vtlanciare qc a qn — to throw sth to sb, (per colpirlo) to throw sth at sb
lanciare il peso Sport — to put the shot
lanciare il disco Sport — to throw the discus
3) (introdurre: idea, nave, prodotto, moda) to launch4) (far andare veloce: macchina) to get up to top speed2. vr (lanciarsi)1) (gen)lanciarsi in qc (anche) fig — to throw o.s. into sth
lanciarsi contro qn — to hurl o fling o.s. at sb
lanciarsi nella mischia — to throw o.s. into the fray
2)(
fig : fare il primo passo) lanciarsi in — to launch into, embark upon o onche aspetti? — lanciati! — what are you waiting for? — off you go!
* * *[lan'tʃare] 1.verbo transitivo1) (gettare) to throw* [pallone, sasso]; (con violenza) to hurl, to fling*; pesc. to cast* [lenza, rete]; sport to throw* [disco, giavellotto, martello, peso]lanciare qcs. in acqua, aria — to throw sth. in the water, (up) in the air
lanciare qcs. a qcn. — to throw sth. to sb., sb. sth
2) (inviare) to launch [ satellite]; to fire [missile, freccia] (su, a at); to drop [ bomba] (su, a on)3) (emettere) to give* [ grido]4) (indirizzare) to hurl [ insulto]; to give* [ sguardo]; to issue [ sfida]; to make*, to fling*, to level [ accusa] (a, contro against); to issue [ ultimatum]; to send* out [SOS, invito]; to launch [ appello]5) (promuovere) to launch [prodotto, cantante, inchiesta, campagna]lanciare una moda — to start o set a fashion
lanciare un'auto a 150 km/h — to take a car up to 150 kph
7) inform. to launch [ programma]8) econ. to float [ prestito]2.verbo pronominale lanciarsi1) (inviarsi) to throw* [sth.] to each other [palla, oggetto]; to exchange [ingiurie, insulti]2) (saltare) to leap*, to jump; (col paracadute) to parachute; (precipitarsi) to dart, to fling* oneself-rsi all'inseguimento di qcn. — to set off in hot pursuit of sb
3) (impegnarsi)- rsi in — to embark on [operazione, spese]
* * *lanciare/lan't∫are/ [1]1 (gettare) to throw* [pallone, sasso]; (con violenza) to hurl, to fling*; pesc. to cast* [lenza, rete]; sport to throw* [disco, giavellotto, martello, peso]; lanciare qcs. in acqua, aria to throw sth. in the water, (up) in the air; lanciare qcs. a qcn. to throw sth. to sb., sb. sth.2 (inviare) to launch [ satellite]; to fire [missile, freccia] (su, a at); to drop [ bomba] (su, a on)3 (emettere) to give* [ grido]4 (indirizzare) to hurl [ insulto]; to give* [ sguardo]; to issue [ sfida]; to make*, to fling*, to level [ accusa] (a, contro against); to issue [ ultimatum]; to send* out [SOS, invito]; to launch [ appello]5 (promuovere) to launch [prodotto, cantante, inchiesta, campagna]; è il film che l'ha lanciato it's the film that made his name; lanciare una moda to start o set a fashion6 (fare accelerare) lanciare un'auto a 150 km/h to take a car up to 150 kph; lanciare un cavallo al galoppo to spur one's mount into a gallop7 inform. to launch [ programma]8 econ. to float [ prestito]II lanciarsi verbo pronominale1 (inviarsi) to throw* [sth.] to each other [palla, oggetto]; to exchange [ingiurie, insulti]2 (saltare) to leap*, to jump; (col paracadute) to parachute; (precipitarsi) to dart, to fling* oneself; -rsi all'inseguimento di qcn. to set off in hot pursuit of sb. -
14 земное притяжение
The launching vehicle… gaining speed and overcoming gravity, rushes skywards.Русско-английский словарь по космонавтике > земное притяжение
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15 набирая скорость
[см. тж. возрастать по мере набора скорости]The launching vehicle slowly comes to life, lifts itself off the launch pad and, gaining speed and overcoming gravity, rushes skywards.Русско-английский словарь по космонавтике > набирая скорость
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16 преодолевая земное притяжение
The launching vehicle… lifts itself off the launch pad and, gaining speed and overcoming gravity, rushes skywards.Русско-английский словарь по космонавтике > преодолевая земное притяжение
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17 стартовая площадка
[см. отрываться от стартовой площадки; см. тж. место старта]The launching vehicle slowly comes to life, lifts itself off the launch( ing) pad and, gaining speed and overcoming gravity, rushes skywards…Русско-английский словарь по космонавтике > стартовая площадка
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18 устремляться в небо
[син. взлетать; подниматься в небо]The launching vehicle slowly comes to life, lifts itself off the launch pad and, gaining speed and overcoming gravity, rushes skywards.Русско-английский словарь по космонавтике > устремляться в небо
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19 Brunel, Isambard Kingdom
SUBJECT AREA: Civil engineering, Land transport, Mechanical, pneumatic and hydraulic engineering, Ports and shipping, Public utilities, Railways and locomotives[br]b. 9 April 1806 Portsea, Hampshire, Englandd. 15 September 1859 18 Duke Street, St James's, London, England[br]English civil and mechanical engineer.[br]The son of Marc Isambard Brunel and Sophia Kingdom, he was educated at a private boarding-school in Hove. At the age of 14 he went to the College of Caen and then to the Lycée Henri-Quatre in Paris, after which he was apprenticed to Louis Breguet. In 1822 he returned from France and started working in his father's office, while spending much of his time at the works of Maudslay, Sons \& Field.From 1825 to 1828 he worked under his father on the construction of the latter's Thames Tunnel, occupying the position of Engineer-in-Charge, exhibiting great courage and presence of mind in the emergencies which occurred not infrequently. These culminated in January 1828 in the flooding of the tunnel and work was suspended for seven years. For the next five years the young engineer made abortive attempts to find a suitable outlet for his talents, but to little avail. Eventually, in 1831, his design for a suspension bridge over the River Avon at Clifton Gorge was accepted and he was appointed Engineer. (The bridge was eventually finished five years after Brunel's death, as a memorial to him, the delay being due to inadequate financing.) He next planned and supervised improvements to the Bristol docks. In March 1833 he was appointed Engineer of the Bristol Railway, later called the Great Western Railway. He immediately started to survey the route between London and Bristol that was completed by late August that year. On 5 July 1836 he married Mary Horsley and settled into 18 Duke Street, Westminster, London, where he also had his office. Work on the Bristol Railway started in 1836. The foundation stone of the Clifton Suspension Bridge was laid the same year. Whereas George Stephenson had based his standard railway gauge as 4 ft 8½ in (1.44 m), that or a similar gauge being usual for colliery wagonways in the Newcastle area, Brunel adopted the broader gauge of 7 ft (2.13 m). The first stretch of the line, from Paddington to Maidenhead, was opened to traffic on 4 June 1838, and the whole line from London to Bristol was opened in June 1841. The continuation of the line through to Exeter was completed and opened on 1 May 1844. The normal time for the 194-mile (312 km) run from Paddington to Exeter was 5 hours, at an average speed of 38.8 mph (62.4 km/h) including stops. The Great Western line included the Box Tunnel, the longest tunnel to that date at nearly two miles (3.2 km).Brunel was the engineer of most of the railways in the West Country, in South Wales and much of Southern Ireland. As railway networks developed, the frequent break of gauge became more of a problem and on 9 July 1845 a Royal Commission was appointed to look into it. In spite of comparative tests, run between Paddington-Didcot and Darlington-York, which showed in favour of Brunel's arrangement, the enquiry ruled in favour of the narrow gauge, 274 miles (441 km) of the former having been built against 1,901 miles (3,059 km) of the latter to that date. The Gauge Act of 1846 forbade the building of any further railways in Britain to any gauge other than 4 ft 8 1/2 in (1.44 m).The existence of long and severe gradients on the South Devon Railway led to Brunel's adoption of the atmospheric railway developed by Samuel Clegg and later by the Samuda brothers. In this a pipe of 9 in. (23 cm) or more in diameter was laid between the rails, along the top of which ran a continuous hinged flap of leather backed with iron. At intervals of about 3 miles (4.8 km) were pumping stations to exhaust the pipe. Much trouble was experienced with the flap valve and its lubrication—freezing of the leather in winter, the lubricant being sucked into the pipe or eaten by rats at other times—and the experiment was abandoned at considerable cost.Brunel is to be remembered for his two great West Country tubular bridges, the Chepstow and the Tamar Bridge at Saltash, with the latter opened in May 1859, having two main spans of 465 ft (142 m) and a central pier extending 80 ft (24 m) below high water mark and allowing 100 ft (30 m) of headroom above the same. His timber viaducts throughout Devon and Cornwall became a feature of the landscape. The line was extended ultimately to Penzance.As early as 1835 Brunel had the idea of extending the line westwards across the Atlantic from Bristol to New York by means of a steamship. In 1836 building commenced and the hull left Bristol in July 1837 for fitting out at Wapping. On 31 March 1838 the ship left again for Bristol but the boiler lagging caught fire and Brunel was injured in the subsequent confusion. On 8 April the ship set sail for New York (under steam), its rival, the 703-ton Sirius, having left four days earlier. The 1,340-ton Great Western arrived only a few hours after the Sirius. The hull was of wood, and was copper-sheathed. In 1838 Brunel planned a larger ship, some 3,000 tons, the Great Britain, which was to have an iron hull.The Great Britain was screwdriven and was launched on 19 July 1843,289 ft (88 m) long by 51 ft (15.5 m) at its widest. The ship's first voyage, from Liverpool to New York, began on 26 August 1845. In 1846 it ran aground in Dundrum Bay, County Down, and was later sold for use on the Australian run, on which it sailed no fewer than thirty-two times in twenty-three years, also serving as a troop-ship in the Crimean War. During this war, Brunel designed a 1,000-bed hospital which was shipped out to Renkioi ready for assembly and complete with shower-baths and vapour-baths with printed instructions on how to use them, beds and bedding and water closets with a supply of toilet paper! Brunel's last, largest and most extravagantly conceived ship was the Great Leviathan, eventually named The Great Eastern, which had a double-skinned iron hull, together with both paddles and screw propeller. Brunel designed the ship to carry sufficient coal for the round trip to Australia without refuelling, thus saving the need for and the cost of bunkering, as there were then few bunkering ports throughout the world. The ship's construction was started by John Scott Russell in his yard at Millwall on the Thames, but the building was completed by Brunel due to Russell's bankruptcy in 1856. The hull of the huge vessel was laid down so as to be launched sideways into the river and then to be floated on the tide. Brunel's plan for hydraulic launching gear had been turned down by the directors on the grounds of cost, an economy that proved false in the event. The sideways launch with over 4,000 tons of hydraulic power together with steam winches and floating tugs on the river took over two months, from 3 November 1857 until 13 January 1858. The ship was 680 ft (207 m) long, 83 ft (25 m) beam and 58 ft (18 m) deep; the screw was 24 ft (7.3 m) in diameter and paddles 60 ft (18.3 m) in diameter. Its displacement was 32,000 tons (32,500 tonnes).The strain of overwork and the huge responsibilities that lay on Brunel began to tell. He was diagnosed as suffering from Bright's disease, or nephritis, and spent the winter travelling in the Mediterranean and Egypt, returning to England in May 1859. On 5 September he suffered a stroke which left him partially paralysed, and he died ten days later at his Duke Street home.[br]Further ReadingL.T.C.Rolt, 1957, Isambard Kingdom Brunel, London: Longmans Green. J.Dugan, 1953, The Great Iron Ship, Hamish Hamilton.IMcNBiographical history of technology > Brunel, Isambard Kingdom
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20 Pierce, John Robinson
[br]b. 27 March 1910 Des Moines, Iowa, USA[br]American scientist and communications engineer said to be the "father" of communication satellites.[br]From his high-school days, Pierce showed an interest in science and in science fiction, writing under the pseudonym of J.J.Coupling. After gaining Bachelor's, Master's and PhD degrees at the California Institute of Technology (CalTech) in Pasadena in 1933, 1934 and 1936, respectively, Pierce joined the Bell Telephone Laboratories in New York City in 1936. There he worked on improvements to the travelling-wave tube, in which the passage of a beam of electrons through a helical transmission line at around 7 per cent of the speed of light was made to provide amplification at 860 MHz. He also devised a new form of electrostatically focused electron-multiplier which formed the basis of a sensitive detector of radiation. However, his main contribution to electronics at this time was the invention of the Pierce electron gun—a method of producing a high-density electron beam. In the Second World War he worked with McNally and Shepherd on the development of a low-voltage reflex klystron oscillator that was applied to military radar equipment.In 1952 he became Director of Electronic Research at the Bell Laboratories' establishment, Murray Hill, New Jersey. Within two years he had begun work on the possibility of round-the-world relay of signals by means of communication satellites, an idea anticipated in his early science-fiction writings (and by Arthur C. Clarke in 1945), and in 1955 he published a paper in which he examined various possibilities for communications satellites, including passive and active satellites in synchronous and non-synchronous orbits. In 1960 he used the National Aeronautics and Space Administration 30 m (98 1/2 ft) diameter, aluminium-coated Echo 1 balloon satellite to reflect telephone signals back to earth. The success of this led to the launching in 1962 of the first active relay satellite (Telstar), which weighed 170 lb (77 kg) and contained solar-powered rechargeable batteries, 1,000 transistors and a travelling-wave tube capable of amplifying the signal 10,000 times. With a maximum orbital height of 3,500 miles (5,600 km), this enabled a variety of signals, including full bandwidth television, to be relayed from the USA to large receiving dishes in Europe.From 1971 until his "retirement" in 1979, Pierce was Professor of Electrical Engineering at CalTech, after which he became Chief Technologist at the Jet Propulsion Laboratories, also in Pasadena, and Emeritus Professor of Engineering at Stanford University.[br]Principal Honours and DistinctionsInstitute of Electrical and Electronics Engineers Morris N.Liebmann Memorial Award 1947; Edison Medal 1963; Medal of Honour 1975. Franklin Institute Stuart Ballantine Award 1960. National Medal of Science 1963. Danish Academy of Science Valdemar Poulsen Medal 1963. Marconi Award 1974. National Academy of Engineering Founders Award 1977. Japan Prize 1985. Arthur C.Clarke Award 1987. Honorary DEng Newark College of Engineering 1961. Honorary DSc Northwest University 1961, Yale 1963, Brooklyn Polytechnic Institute 1963. Editor, Proceedings of the Institute of Radio Engineers 1954–5.Bibliography23 October 1956, US patent no. 2,768,328 (his development of the travelling-wave tube, filed on 5 November 1946).1947, with L.M.Field, "Travelling wave tubes", Proceedings of the Institute of RadioEngineers 35:108 (describes the pioneering improvements to the travelling-wave tube). 1947, "Theory of the beam-type travelling wave tube", Proceedings of the Institution ofRadio Engineers 35:111. 1950, Travelling Wave Tubes.1956, Electronic Waves and Messages. 1962, Symbols, Signals and Noise.1981, An Introduction to Information Theory: Symbols, Signals and Noise: Dover Publications.1990, with M.A.Knoll, Signals: Revolution in Electronic Communication: W.H.Freeman.KF
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