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1 stage of experiments
Пластмассы: стадия экспериментов -
2 stage of experiments
English-russian plastics terminology dictionary > stage of experiments
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3 stage of experiments
stadium eksperymentalneEnglish-Polish dictionary for engineers > stage of experiments
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4 stage of experiments
English-Russian dictionary of chemistre > stage of experiments
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5 stage
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6 late
[leɪt] 1.1) (after expected time) [arrival, rains, publication] tardivosorry I'm late — mi dispiace di essere in ritardo, scusa il ritardo
I'm late (for school, work) — sono in ritardo
to make sb. late — fare ritardare qcn., far fare tardi a qcn.
dinner will be a bit late — la cena è un po' in ritardo, ceneremo con un po' di ritardo
if the payment is more than three days late — se il pagamento avviene con più di tre giorni di ritardo
2) (towards end of day, season etc.) [ hour] tardo; [ supper] a tarda ora; [ pregnancy] tardivo, in tarda etàto take a late holiday — BE o
vacation — AE prendersi una vacanza a fine stagione
to keep late hours — fare tardi, fare le ore piccole
to have a late night — fare tardi, andare a dormire a ora tarda
4) (deceased)the late President — il fu o il defunto Presidente
2.my late husband — il mio defunto o povero marito
1) (after expected time) [arrive, start, finish] in ritardoto be running late — [person, train, bus] essere in ritardo
2) (towards end of time period) [get up, open, close] tardilate last night o in the evening ieri sera tardi o di sera tardi; late last week alla fine della scorsa settimana; to work late into the night lavorare fino a tarda notte; as late as that fino ad allora; later on più tardi; it's a bit late in the day to do fig. è un po' tardi per fare; too late! troppo tardi! don't leave it too late! non aspettare troppo! to leave no later than 6 am partire non più tardi delle sei o alle sei al più tardi; to marry late sposarsi tardi; he left for Italy six months later partì per l'Italia sei mesi più tardi; see you later! — a dopo! ci vediamo! arrivederci!
3) amm. (formerly)Miss Stewart, late of 48 Temple Rd — Sig.na Stewart, precedentemente domiciliata in 48 Temple Rd
4) of late ultimamente* * *[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.) in ritardo2) (far on in the day or night: late in the day; late at night; It was very late when I got to bed.) tardi3) (dead, especially recently: the late king.) defunto; compianto4) (recently, but no longer, holding an office or position: Mr Allan, the late chairman, made a speech.) precedente, ex2. adverb1) (after the expected or usual time: He arrived late for his interview.) tardi, in ritardo2) (far on in the day or night: They always go to bed late.) tardi•- lateness- lately
- later on
- of late* * *[leɪt] 1.1) (after expected time) [arrival, rains, publication] tardivosorry I'm late — mi dispiace di essere in ritardo, scusa il ritardo
I'm late (for school, work) — sono in ritardo
to make sb. late — fare ritardare qcn., far fare tardi a qcn.
dinner will be a bit late — la cena è un po' in ritardo, ceneremo con un po' di ritardo
if the payment is more than three days late — se il pagamento avviene con più di tre giorni di ritardo
2) (towards end of day, season etc.) [ hour] tardo; [ supper] a tarda ora; [ pregnancy] tardivo, in tarda etàto take a late holiday — BE o
vacation — AE prendersi una vacanza a fine stagione
to keep late hours — fare tardi, fare le ore piccole
to have a late night — fare tardi, andare a dormire a ora tarda
4) (deceased)the late President — il fu o il defunto Presidente
2.my late husband — il mio defunto o povero marito
1) (after expected time) [arrive, start, finish] in ritardoto be running late — [person, train, bus] essere in ritardo
2) (towards end of time period) [get up, open, close] tardilate last night o in the evening ieri sera tardi o di sera tardi; late last week alla fine della scorsa settimana; to work late into the night lavorare fino a tarda notte; as late as that fino ad allora; later on più tardi; it's a bit late in the day to do fig. è un po' tardi per fare; too late! troppo tardi! don't leave it too late! non aspettare troppo! to leave no later than 6 am partire non più tardi delle sei o alle sei al più tardi; to marry late sposarsi tardi; he left for Italy six months later partì per l'Italia sei mesi più tardi; see you later! — a dopo! ci vediamo! arrivederci!
3) amm. (formerly)Miss Stewart, late of 48 Temple Rd — Sig.na Stewart, precedentemente domiciliata in 48 Temple Rd
4) of late ultimamente -
7 experimental
adjective1) experimentell; Experimental[physik, -psychologie]; Experimentier[theater]; Versuchs[labor, -bedingungen]; Versuchs[tier]2) (fig.): (tentative) vorläufig* * *[-'mentl]* * *ex·peri·men·tal1. (for experiment) Versuchs-\experimental conditions pl Versuchsbedingungen pl\experimental game Planspiel nt\experimental laboratory Versuchslabor ntto be still at the \experimental stage sich akk noch im Versuchsstadium befinden2. (using experiments) experimentell, Experimentier-\experimental physics Experimentalphysik f fachspr\experimental psychology experimentelle Psychologie fachspr\experimental theatre Experimentiertheater nt fachsprto be purely \experimental rein experimentell seinon an \experimental basis versuchsweise* * *[Ik"sperɪ'mentl]adj (ALSO SCI, MED, TECH ETC)experimentell/cinema — Experimentiertheater nt/-kino nt
experimental physics/psychology — Experimentalphysik f/-psychologie f
experimental laboratory/period — Versuchslabor nt/-zeit f
to be at an or in the experimental stage — sich im Versuchs- or Experimentierstadium befinden
he argued for an experimental lifting of the ban — er argumentierte dafür, das Verbot versuchsweise aufzuheben
* * *1. Versuchs…, experimentell, Experimental…:experimental animal Versuchstier n;experimental farm landwirtschaftliche Experimentierstation;experimental psychology Experimentalpsychologie f;experimental station Versuchs-, Experimentierstation f;2. experimentierfreudigexp. abk2. experiment3. experimental4. expired5. export6. exportation7. exported8. exporter9. express* * *adjective1) experimentell; Experimental[physik, -psychologie]; Experimentier[theater]; Versuchs[labor, -bedingungen]; Versuchs[tier]at the/an experimental stage — im Versuchsstadium
2) (fig.): (tentative) vorläufig* * *adj.experimentell adj. -
8 ставить
несовер. - ставить;
совер. - поставить( кого-л./что-л.)
1) put, place, set, stand, station ставить книги на полку ≈ to shelve the books ставить ногу на землю ≈ to plant one's foot on the earth ставить памятник ≈ to erect a monument (to), to put up a monument (to)
2) (о компрессе) apply, put on
3) (о пьесе) put on the stage, stage, produce, put, present
4) (на кого-л./что-л.) (в азартных играх) stake (on)
5) (выдвигать) raise, put ставить вопрос на обсуждение ≈ to bring up a question for discussion ставить условия ≈ to make terms, to lay down conditions/terms
6) (считать) ни в грош не ставить, ни во что не ставить кого-л. разг. ≈ not to care/give a pin/damn for smb., not to give a brass farthing for smb., to think little of smb. высоко ставить кого-л. ≈ to think highly of smb.;
to value, to esteem ставить за правило ≈ to make it a rule ставить целью ≈ to make it one's aim, to set oneself smth. as an object
7) (устраивать) organize ∙ ставить голос кому-л. ≈ to train smb.'s voice ставить кому-л. препятствия ≈ to place/put obstacles in smb.'s way ставить кого-л. в безвыходное положение ≈ to drive smb. into a corner ставить перед совершившимся фактом ≈ to present with a fait accompli франц. ставить что-л. в вину кому-л. ≈ to blame smb. for smth., to accuse smb. of smth. ставить кого-л. в пример ≈ to hold smb. up as an example ставить что-л. кому-л. в упрек ≈ to reproach smb. with smth., to place the blame for smth. on smb. ставить в угол (в виде наказания) ≈ to stand in the corner ставить точки над ""и"" ≈ to dot one's ""i's"" and to cross one's ""i's"" ставить на место кого-л. ≈ to put smb. in his place ставить часы ставить подпись ставить в тупик ставить в необходимость - ставить в известность ставить на постой ставить диагноз ставить тесто ставить рекорд, поставить (вн.)
1. (заставлять кого-л. принять стоячее положение) stand* (smb.), make* (smb.) stand up;
поставить ребёнка на стул stand* the child* on a chair;
2. (назначать для выполнения чего-л.) put* (smb.) ;
разг. (назначать на должность) appoint( smb.) ;
~ кого-л. на пост put* smb. on duty;
~ кого-л. к станку put*/set* smb. to work at a lathe;
3. (располагать, размещать) put* (smb.), station( smb.) ;
~ кого-л. в ряд make* smb. stand in a row;
4. (приводить кого-л. в какое-л. состояние) put* (smb.) ;
~ кого-л. в неловкое, безвыходное положение put* smb. in an awkward, a hopeless position;
5. (помещать, устанавливать что-л.) put* (smth.), place (smth.), set* (smth.) ;
(вертикально тж.) stand* (smth.) ;
~ что-л. в шкаф put* smth. in a cupboard;
~ чайник put* the kettle on;
~ цветы в воду put* the flowers in water;
~ столб plant/fix a post;
~ памятник кому-л. put* up a monument to smb., erect a monument to smb. ;
6. (делать ставку - в азартных играх) stake (smth.), bet* (smth.) ;
~ на лошадь back a horse;
~ на лошадь тысячу рублей put* one thousand roubles on a horse;
7. (приводить в нужное положение) set* (smth.) ;
~ часы set* a clock/watch;
~ голос кому-л. place smb.`s voice;
8. (устанавливать) install (smth.), fix (smth.) ;
~ телефон, ванну и т. п. install a telephone, bath etc. ;
~ мины lay* mines;
9. (о лечебном средстве и т. п.) apply (smth.), ~ банки кому-л. cup smb. ;
~ пиявки apply leeches;
10. (прикреплять) put* (smth.) on;
~ подмётку put* a sole on;
~ подкладку put*/fit a lining in;
11. (изображать на письме) put* (smth.) ;
(об отметках) give* (smth.) ;
~ точку put* a full stop;
12. разг. (строить) put* (smth.) up, build* (smth.) ;
13. (налаживать, организовывать) organize (smth.) ;
(осуществлять) make* (smth.) ;
~ опыты make* experiments;
14. (осуществлять постановку на сцене) stage (smth.) ;
put* (smth.) on the stage, direct( smth.) ;
~ пьесу direct a play;
15. (выдвигать, предлагать) propose( smth.), move (smth.) ;
~ вопрос на голосование put* the question to the vote;
16.: ~ что-л. кому-л. в вину place/put* the blame for smth. on smb. ;
~ кому-л. задачу set* smb. a task;
~ кого-л. в пример hold* smb. up as an example;
~ условия lay* down conditions;
поставить себе цель set* oneself the aim;
~ рекорд set* a record;
~ на вид кому-л. officially criticize/admonish smb. ;
~ всё на карту stake one`s all;
ни в грош не ~, ни во что не ~ что-л. attach not the slightest importance to smth. ;
(кого-л.) have* no regard for smb. ;
~ что-л. выше всего rate smth. above everything;
~ кого-л. на ноги set* smb. ;
on his, her feet;
~ вопрос state/posit/propound a question. -
9 laboratory
nounLabor[atorium], das* * *[lə'borətəri, ]( American[) 'læbrəto:ri]((abbreviated to lab) a place where scientific experiments are carried on or where drugs etc are prepared: Samples of her blood were sent to the hospital lab(oratory) for testing.) das Laboratorium* * *la·bora·tory[ləˈbɒrətəri, AM ˈlæbrətɔ:ri]I. n Labor[atorium] ntunder \laboratory conditions unter Laborbedingungento be [still] at the \laboratory stage sich akk [noch] im Versuchsstadium befinden* * *[l\@'bɒrətərI] (US) ['lbrə"tɔːrɪ]nLabor(atorium) ntlaboratory assistant — Laborant( in) m(f)
the project was abandoned at the laboratory stage — das Projekt wurde im Versuchsstadium abgebrochen
* * *1. Laboratorium n, Labor n:laboratory assistant Laborant(in);laboratory test Laborversuch m2. weitS.a) Versuchsanstalt fb) (Sprach- etc) Labor n3. fig Werkstätte f, -statt f:* * *nounLabor[atorium], das* * *n.Labor -s n.Laboratorium n. -
10 late
late [leɪt]1. adjectivea. ( = after scheduled time) to be late [person] être en retard• we apologize for the late arrival of flight XY 709 nous vous prions d'excuser le retard du vol XY 709c. ( = after usual time) [crop, flowers] tardif ; [booking] de dernière minuted. ( = at advanced time of day) tard• to have a late meal/lunch manger/déjeuner tard• the late film tonight is... (on TV) le film diffusé en fin de soirée est...• there's a late show on Saturdays (at theatre) il y a une seconde représentation en soirée le samedie. ( = near end of period or series) the latest edition of the catalogue la toute dernière édition du catalogue• in late June/September fin juin/septembre2. adverba. ( = after scheduled time) [arrive] en retard ; [start, finish, deliver] avec du retard• to arrive late for sth (meeting, dinner, film) arriver en retard à qchb. ( = after usual time) tard• she had started learning German quite late in life elle avait commencé à apprendre l'allemand assez tardc. ( = at advanced time of day) [work, get up, sleep, start, finish] tardd. ( = near end of period) late in 1992 fin 1992• it wasn't until relatively late in his career that... ce n'est que vers la fin de sa carrière que...e. ( = recently) as late as last week pas plus tard que la semaine dernière► of late ( = lately) ces derniers temps3. compounds• there's late-night shopping on Thursdays le magasin ouvre en nocturne le jeudi ► late riser noun lève-tard (inf) mf* * *[leɪt] 1.1) ( after expected time) [arrival, rains, publication, implementation] tardif/-ive2) (towards end of day, season etc) [hour, supper, date, pregnancy] tardif/-iveto take a late holiday GB ou vacation US — prendre des vacances en fin de saison
3) ( deceased)2.1) ( after expected time) [arrive, start, finish] en retardto be running late — [person] être en retard; [train, bus] avoir du retard
2) ( towards end of time period) [get up, open, close] tardlate last night/in the evening — tard hier soir/dans la soirée
it's a bit late (in the day) to do — fig c'est un peu tard pour faire
3) Administration ( formerly)3.Miss Stewart, late of 48 Temple Rd — Mlle Stewart, autrefois domiciliée au 48 Temple Rd
of late adverbial phrase dernièrement, ces jours-ci -
11 Wright, Wilbur
SUBJECT AREA: Aerospace[br]b. 16 April 1867 Millville, Indiana, USAd. 30 May 1912 Dayton, Ohio, USA[br]American co-inventor, with his brother Orville Wright (b. 19 August 1871 Dayton, Ohio, USA; d. 30 January 1948 Dayton, Ohio, USA), of the first powered aeroplane capable of sustained, controlled flight.[br]Wilbur and Orville designed and built bicycles in Dayton, Ohio. In the 1890s they developed an interest in flying which led them to study the experiments of gliding pioneers such as Otto Lilienthal in Germany, and their fellow American Octave Chanute. The Wrights were very methodical and tackled the many problems stage by stage. First, they developed a method of controlling a glider using movable control surfaces, instead of weight-shifting as used in the early hand-gliders. They built a wind tunnel to test their wing sections and by 1902 they had produced a controllable glider. Next they needed a petrol engine, and when they could not find one to suit their needs they designed and built one themselves.On 17 December 1903 their Flyer was ready and Orville made the first short flight of 12 seconds; Wilbur followed with a 59-second flight covering 853 ft (260 m). An improved design, Flyer II, followed in 1904 and made about eighty flights, including circuits and simple ma-noeuvres. In 1905 Flyer III made several long flights, including one of 38 minutes covering 24½ miles (39 km). Most of the Wrights' flying was carried out in secret to protect their patents, so their achievements received little publicity. For a period of two and a half years they did not fly, but they worked to improve their Flyer and to negotiate terms for the sale of their invention to various governments and commercial syndi-cates.In 1908 the Wright Model A appeared, and when Wilbur demonstrated it in France he astounded the European aviators by making several flights lasting more than one hour and one of 2 hours 20 minutes. Considerable numbers of the Model A were built, but the European designers rapidly caught up and overtook the Wrights. The Wright brothers became involved in several legal battles to protect their patents: one of these, with Glenn Curtiss, went on for many years. Wilbur died of typhoid fever in 1912. Orville sold his interest in the Wright Company in 1915, but retained an interest in aeronautical research and lived on to see an aeroplane fly faster than the speed of sound.[br]Principal Honours and DistinctionsRoyal Aeronautical Society (London) Gold Medal (awarded to both Wilbur and Orville) May 1909. Medals from the Aero Club of America, Congress, Ohio State and the City of Dayton.Bibliography1951, Miracle at Kitty Hawk. The Letters of Wilbur \& Orville Wright, ed. F.C.Kelly, New York.1953, The Papers of Wilbur and Orville Wright, ed. Marvin W.McFarland, 2 vols, New York.Orville Wright, 1953, How We Invented the Aeroplane, ed. F.C.Kelly, New York.Further ReadingA.G.Renstrom, 1968, Wilbur \& Orville Wright. A Bibliography, Washington, DC (with 2,055 entries).C.H.Gibbs-Smith, 1963, The Wright Brothers, London (reprint) (a concise account).J.L.Pritchard, 1953, The Wright Brothers', Journal of the Royal Aeronautical Society (December) (includes much documentary material).F.C.Kelly, 1943, The Wright Brothers, New York (reprint) (authorized by Orville Wright).H.B.Combs with M.Caidin, 1980, Kill Devil Hill, London (contains more technical information).T.D.Crouch, 1989, The Bishop's Boys: A Life of Wilbur \& Orville Wright, New York (perhaps the best of various subsequent biographies).JDS -
12 experimental
1) ( for experiment) Versuchs-;\experimental laboratory Versuchslabor nt;to be still at the \experimental stage sich akk noch im Versuchsstadium befinden2) ( using experiments) experimentell, Experimentier-;\experimental psychology experimentelle Psychologie fachspr;\experimental researcher Experimentalforscher(in) m(f);to be purely \experimental rein experimentell sein;on an \experimental basis versuchsweise -
13 late
A adj1 ( after expected time) [arrival, rains, publication, implementation] tardif/-ive ; in case of late delivery en cas de retard de livraison ; late essays will not be marked les dissertations rendues en retard ne seront pas corrigées ; to have a late lunch déjeuner plus tard que d'habitude ; to make a late start ( getting up) se lever tard ; ( setting off) partir tard ; to get off to a late start [meeting, event] commencer tard ; sorry I'm late désolé d'être en retard ; the secretary/her application form was late la secrétaire/sa demande est arrivée en retard ; to be late for être en retard pour [work, school, appointment] ; to make sb late retarder qn ; to be late leaving partir en retard ; to be late with the rent payer son loyer avec du retard ; dinner will be a bit late le dîner sera retardé ; Easter is late this year Pâques tombe tard cette année ; if the payment is more than three days late si le paiement a plus de trois jours de retard ;2 (towards end of day, season, life etc) [hour, supper, date, pregnancy] tardif/-ive ; [plant, variety] Bot tardif/-ive ; to have a late lecture on Mondays avoir un cours tard le lundi ; to take a late holiday GB ou vacation US prendre des vacances tard en saison ; to keep late hours se coucher tard ; to have a late night (aller) se coucher tard ; you've had too many late nights this week tu t'es couché trop tard toute la semaine ; to watch the late film on television regarder le dernier film à la télévision ; in later life plus tard dans la vie ; to be in one's late fifties approcher de la soixantaine ; a man in his late thirties un homme proche de la quarantaine ; to be a late starter commencer tard ; at this late stage à ce stade avancé ; in late January (à la) fin janvier ; in the late 50's/18th century à la fin des années 50/du XVIIIe siècle ; late Renaissance art l'art de la fin de la Renaissance ; late Victorian [architecture etc] de la fin de l'époque victorienne ; in the late Middle Ages au bas moyen âge ; it will be late afternoon when I arrive j'arriverai en fin d'après-midi ; the latest appointment is at 4 pm le dernier rendez-vous est à 16 h ; the latest date you can apply la date limite de dépôt des candidatures ;3 ( towards end of series) in one of her later films dans un de ses derniers films ; Shakespeare's later plays les dernières pièces de Shakespeare ; in later editions of the newspaper dans les dernières éditions du journal ; in a later novel dans un roman postérieur ; later models are fully automatic les modèles postérieurs sont entièrement automatiques ; her later experiments ses expériences ultérieures ; at a later meeting à une réunion ultérieure ; have you a later recording? avez-vous un enregistrement plus récent? ; the latest fashions la dernière mode ;4 ( deceased) the late President feu le Président fml, le défunt Président ; my late husband mon pauvre mari.B adv1 ( after expected time) [arrive, leave, start, finish] en retard ; to be running late [person] être en retard ; [train, bus] avoir du retard ; to start three months late commencer avec trois mois de retard ;2 ( towards end of time period) [get up, go to bed, open, close, end] tard ; it's late, let's go to bed il est tard, allons nous coucher ; late last night/in the evening tard hier soir/dans la soirée ; late last week à la fin de la semaine dernière ; to work late travailler tard ; to work late into the night travailler tard dans la nuit ; as late as that aussi tard (que cela) ; later on plus tard ; it's a bit late in the day to do fig c'est un peu tard pour faire ; too late! trop tard! ; don't leave it too late! n'attendez pas trop (longtemps)! ; as late as possible aussi tard que possible ; to leave no later than 6 am partir au plus tard à 6 h ; to marry late se marier sur le tard ; to learn Italian late in life apprendre l'italien sur le tard ; he left for Italy six months later il est parti pour l'Italie six mois après ; see you later! à tout à l'heure! ; -
14 Goddard, Dr Robert Hutchings
SUBJECT AREA: Aerospace[br]b. 5 October 1882 Worcester, Massachusetts, USAd. 10 August 1945 Baltimore, Maryland, USA[br]American inventory developer of rocket propulsion.[br]At the age of seventeen Goddard climbed a tree and, seeing the view from above, he became determined to make some device with which to ascend towards the planets. In an autobiography, published in 1959 in the journal Astronautics, he stated, "I was a different boy when I descended the ladder. Life now had a purpose for me." His first idea was to launch a projectile by centrifugal force, but in 1909 he started to design a rocket that was to be multi-stage and fuelled by liquid oxygen and hydrogen. Not long before the First World War he produced a report, "A method of reaching extreme altitudes", which was for the Smithsonian Institution and was published in book form in 1919. During the war he worked on solid-fuelled rockets as weapons. His book contained notes on the amount of fuel required to raise 1 lb (454 g) of payload to an infinite altitude. He incurred ridicule as "the moon man" when he proposed the use of flash powder to indicate successful arrival on the moon. In 1923 he severed his connections with military work and returned to the University of Massachusetts. On 16 March 1926 he launched the world's first liquid-fuelled rocket from his aunt's farm in Auburn, Massachusetts; powered by gasoline and liquid oxygen, it flew to a height of 12 m (40 ft) and travelled 54 m (177 ft) in 2.4 seconds.In November 1929 he met the aviator Charles Lindbergh, who persuaded both the Guggenheim Foundation and the Carnegie Institute to support Goddard's experiments financially. He moved to the more suitable location of the Mescalere Ranch, near Roswell, New Mexico, where he worked until 1941. His liquid-fuelled rockets reached speeds of 1,100 km/h (700 mph) and heights of 2,500 m (8,000ft). He investigated the use of the gyroscope to steady his rockets and the assembly of power units in clusters to increase the total thrust. In 1941 he moved to the naval establishment at Annapolis, Maryland, working on liquid-fuelled rockets to assist the take-off of aircraft from carriers. He worked for the US Government on this and the development of military rockets until his death from throat cancer in 1945. In all, he was granted 214 patents, roughly three per year of his life.In 1960 the US Government admitted infringement of Goddard's patents during the rocket programme of the 1950s and awarded his widow a payment of $1,000,000, while the National Aeronautics and Space Administration (NASA) honoured him by naming the Goddard Spaceflight Center near Washington, DC, after him. The Goddard Memorial Library at Clark University, in his home town of Worcester, Massachusetts, was also named in his honour.[br]Further ReadingA.Osman, 1983, Space History, London: Michael Joseph. P.Marsh, 1985, The Space Business, Harmondsworth: Penguin.K.C.Parley, 1991, Robert H.Goddard, Englewood Cliffs, NJ: Silver Burdett Press. T.Streissguth, 1994, Rocket Man: The Story of Robert Goddard, Minneapolis: Carolrhoda Books.IMcNBiographical history of technology > Goddard, Dr Robert Hutchings
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15 Junghans, Siegfried
SUBJECT AREA: Metallurgy[br]b. 1887d. 1954[br]German pioneer of the continuous casting of metals.[br]Junghans was of the family that owned Gebrüder Junghans, one of the largest firms in the German watch-and clockmaking industry. From 1906 to 1918 he served in the German Army, after which he took a course in metallurgy and analytical chemistry at the Technical High School in Stuttgart. Junghans was then given control of the brassworks owned by his family. He wanted to make castings simply and cheaply, but he found that he lacked the normal foundry equipment. By 1927, formulating his ideas on continuous casting, he had conceived a way of overcoming this deficiency and began experiments. By the time the firm was taken over by Wieland-Werke AG in 1931, Junghans had achieved positive results. A test plant was erected in 1932, and commercial production of continuously cast metal followed the year after. Wieland told Junghans that a brassfounder who had come up through the trade would never have hit on the idea: it took an outsider like Junghans to do it. He was made Technical Director of Wielands but left in 1935 to work privately on the development of continuous casting for all metals. He was able to license the process for non-ferrous metals during 1936–9 in Germany and other countries, but the Second World War interrupted his work; however, the German government supported him and a production plant was built. In 1948 he was able to resume work on the continuous casting of steel, which he had been considering since 1936. He pushed on in spite of financial difficulties and produced the first steel by this process at Schorndorf in March 1949. From 1950 he made agreements with four firms to work towards the pilot plant stage, and this was achieved in 1954 at Mannesmann's Huckingen works. The aim of continuous casting is to bypass the conventional processes of casting molten steel into ingots, reheating the ingots and shaping them by rolling them in a large mill. Essentially, in continuous casting, molten steel is drawn through the bottom of a ladle and down through a water-cooled copper mould. The unique feature of Junghans's process was the vertically reciprocating mould, which prevented the molten metal sticking as it passed through. A continuous length of steel is taken off and cooled until it is completely solidified into the required shape. The idea of continuous casting can be traced back to Bessemer, and although others tried to apply it later, they did not have any success. It was Junghans who, more than anybody, made the process a reality.[br]Further ReadingK.Sperth and A.Bungeroth, 1953, "The Junghans method of continuous casting of steel", Metal Treatment and Drop Forging, Mayn.J.Jewkes et al., 1969, The Sources of Invention, 2nd edn, London: Macmillan, pp. 287 ff.LRD -
16 Maxim, Sir Hiram Stevens
[br]b. 5 February 1840 Brockway's Mills, Maine, USAd. 24 November 1916 Streatham, London, England[br]American (naturalized British) inventor; designer of the first fully automatic machine gun and of an experimental steam-powered aircraft.[br]Maxim was born the son of a pioneer farmer who later became a wood turner. Young Maxim was first apprenticed to a carriage maker and then embarked on a succession of jobs before joining his uncle in his engineering firm in Massachusetts in 1864. As a young man he gained a reputation as a boxer, but it was his uncle who first identified and encouraged Hiram's latent talent for invention.It was not, however, until 1878, when Maxim joined the first electric-light company to be established in the USA, as its Chief Engineer, that he began to make a name for himself. He developed an improved light filament and his electric pressure regulator not only won a prize at the first International Electrical Exhibition, held in Paris in 1881, but also resulted in his being made a Chevalier de la Légion d'honneur. While in Europe he was advised that weapons development was a more lucrative field than electricity; consequently, he moved to England and established a small laboratory at Hatton Garden, London. He began by investigating improvements to the Gatling gun in order to produce a weapon with a faster rate of fire and which was more accurate. In 1883, by adapting a Winchester carbine, he successfully produced a semi-automatic weapon, which used the recoil to cock the gun automatically after firing. The following year he took this concept a stage further and produced a fully automatic belt-fed weapon. The recoil drove barrel and breechblock to the vent. The barrel then halted, while the breechblock, now unlocked from the former, continued rearwards, extracting the spent case and recocking the firing mechanism. The return spring, which it had been compressing, then drove the breechblock forward again, chambering the next round, which had been fed from the belt, as it did so. Keeping the trigger pressed enabled the gun to continue firing until the belt was expended. The Maxim gun, as it became known, was adopted by almost every army within the decade, and was to remain in service for nearly fifty years. Maxim himself joined forces with the large British armaments firm of Vickers, and the Vickers machine gun, which served the British Army during two world wars, was merely a refined version of the Maxim gun.Maxim's interests continued to occupy several fields of technology, including flight. In 1891 he took out a patent for a steam-powered aeroplane fitted with a pendulous gyroscopic stabilizer which would maintain the pitch of the aeroplane at any desired inclination (basically, a simple autopilot). Maxim decided to test the relationship between power, thrust and lift before moving on to stability and control. He designed a lightweight steam-engine which developed 180 hp (135 kW) and drove a propeller measuring 17 ft 10 in. (5.44 m) in diameter. He fitted two of these engines into his huge flying machine testrig, which needed a wing span of 104 ft (31.7 m) to generate enough lift to overcome a total weight of 4 tons. The machine was not designed for free flight, but ran on one set of rails with a second set to prevent it rising more than about 2 ft (61 cm). At Baldwyn's Park in Kent on 31 July 1894 the huge machine, carrying Maxim and his crew, reached a speed of 42 mph (67.6 km/h) and lifted off its rails. Unfortunately, one of the restraining axles broke and the machine was extensively damaged. Although it was subsequently repaired and further trials carried out, these experiments were very expensive. Maxim eventually abandoned the flying machine and did not develop his idea for a stabilizer, turning instead to other projects. At the age of almost 70 he returned to the problems of flight and designed a biplane with a petrol engine: it was built in 1910 but never left the ground.In all, Maxim registered 122 US and 149 British patents on objects ranging from mousetraps to automatic spindles. Included among them was a 1901 patent for a foot-operated suction cleaner. In 1900 he became a British subject and he was knighted the following year. He remained a larger-than-life figure, both physically and in character, until the end of his life.[br]Principal Honours and DistinctionsChevalier de la Légion d'Honneur 1881. Knighted 1901.Bibliography1908, Natural and Artificial Flight, London. 1915, My Life, London: Methuen (autobiography).Further ReadingObituary, 1916, Engineer (1 December).Obituary, 1916, Engineering (1 December).P.F.Mottelay, 1920, The Life and Work of Sir Hiram Maxim, London and New York: John Lane.Dictionary of National Biography, 1912–1921, 1927, Oxford: Oxford University Press.See also: Pilcher, Percy SinclairCM / JDSBiographical history of technology > Maxim, Sir Hiram Stevens
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17 Senefelder, Alois
SUBJECT AREA: Paper and printing[br]b. 6 November 1771 Prague, Bohemia (now Czech Republic)d. 26 February 1834 Munich, Germany[br]German inventor of lithography.[br]Soon after his birth, Senefelder's family moved to Mannheim, where his father, an actor, had obtained a position in the state theatre. He was educated there, until he gained a scholarship to the university of Ingolstadt. The young Senefelder wanted to follow his father on to the stage, but the latter insisted that he study law. He nevertheless found time to write short pieces for the theatre. One of these, when he was 18 years old, was an encouraging success. When his father died in 1791, he gave up his studies and took to a new life as poet and actor. However, the wandering life of a repertory actor palled after two years and he settled for the more comfortable pursuit of playwriting. He had some of his work printed, which acquainted him with the art of printing, but he fell out with his bookseller. He therefore resolved to carry out his own printing, but he could not afford the equipment of a conventional letterpress printer. He began to explore other ways of printing and so set out on the path that was to lead to an entirely new method.He tried writing in reverse on a copper plate with some acid-resisting material and etching the plate, to leave a relief image that could then be inked and printed. He knew that oily substances would resist acid, but it required many experiments to arrive at a composition of wax, soap and charcoal dust dissolved in rainwater. The plates wore down with repeated polishing, so he substituted stone plates. He continued to etch them and managed to make good prints with them, but he went on to make the surprising discovery that etching was unnecessary. If the image to be printed was made with the oily composition and the stone moistened, he found that only the oily image received the ink while the moistened part rejected it. The printing surface was neither raised (as in letterpress printing) nor incised (as in intaglio printing): Senefelder had discovered the third method of printing.He arrived at a workable process over the years 1796 to 1799, and in 1800 he was granted an English patent. In the same year, lithography (or "writing on stone") was introduced into France and Senefelder himself took it to England, but it was some time before it became widespread; it was taken up by artists especially for high-quality printing of art works. Meanwhile, Senefelder improved his techniques, finding that other materials, even paper, could be used in place of stone. In fact, zinc plates were widely used from the 1820s, but the name "lithography" stuck. Although he won world renown and was honoured by most of the crowned heads of Europe, he never became rich because he dissipated his profits through restless experimenting.With the later application of the offset principle, initiated by Barclay, lithography has become the most widely used method of printing.[br]Bibliography1911, Alois Senefelder, Inventor of Lithography, trans. J.W.Muller, New York: Fuchs \& Line (Senefelder's autobiography).Further ReadingW.Weber, 1981, Alois Senefelder, Erfinder der Lithographie, Frankfurt-am-Main: Polygraph Verlag.M.Tyman, 1970, Lithography 1800–1950, London: Oxford University Press (describes the invention and its development; with biographical details).LRD -
18 Sperry, Elmer Ambrose
[br]b. 21 October 1860 Cincinnatus, Cortland County, New York, USAd. 16 June 1930 Brooklyn, New York, USA[br]American entrepreneur who invented the gyrocompass.[br]Sperry was born into a farming community in Cortland County. He received a rudimentary education at the local school, but an interest in mechanical devices was aroused by the agricultural machinery he saw around him. His attendance at the Normal School in Cortland provided a useful theoretical background to his practical knowledge. He emerged in 1880 with an urge to pursue invention in electrical engineering, then a new and growing branch of technology. Within two years he was able to patent and demonstrate his arc lighting system, complete with its own generator, incorporating new methods of regulating its output. The Sperry Electric Light, Motor and Car Brake Company was set up to make and market the system, but it was difficult to keep pace with electric-lighting developments such as the incandescent lamp and alternating current, and the company ceased in 1887 and was replaced by the Sperry Electric Company, which itself was taken over by the General Electric Company.In the 1890s Sperry made useful inventions in electric mining machinery and then in electric street-or tramcars, with his patent electric brake and control system. The patents for the brake were important enough to be bought by General Electric. From 1894 to 1900 he was manufacturing electric motor cars of his own design, and in 1900 he set up a laboratory in Washington, where he pursued various electrochemical processes.In 1896 he began to work on the practical application of the principle of the gyroscope, where Sperry achieved his most notable inventions, the first of which was the gyrostabilizer for ships. The relatively narrow-hulled steamship rolled badly in heavy seas and in 1904 Ernst Otto Schuck, a German naval engineer, and Louis Brennan in England began experiments to correct this; their work stimulated Sperry to develop his own device. In 1908 he patented the active gyrostabilizer, which acted to correct a ship's roll as soon as it started. Three years later the US Navy agreed to try it on a destroyer, the USS Worden. The successful trials of the following year led to widespread adoption. Meanwhile, in 1910, Sperry set up the Sperry Gyroscope Company to extend the application to commercial shipping.At the same time, Sperry was working to apply the gyroscope principle to the ship's compass. The magnetic compass had worked well in wooden ships, but iron hulls and electrical machinery confused it. The great powers' race to build up their navies instigated an urgent search for a solution. In Germany, Anschütz-Kämpfe (1872–1931) in 1903 tested a form of gyrocompass and was encouraged by the authorities to demonstrate the device on the German flagship, the Deutschland. Its success led Sperry to develop his own version: fortunately for him, the US Navy preferred a home-grown product to a German one and gave Sperry all the backing he needed. A successful trial on a destroyer led to widespread acceptance in the US Navy, and Sperry was soon receiving orders from the British Admiralty and the Russian Navy.In the rapidly developing field of aeronautics, automatic stabilization was becoming an urgent need. In 1912 Sperry began work on a gyrostabilizer for aircraft. Two years later he was able to stage a spectacular demonstration of such a device at an air show near Paris.Sperry continued research, development and promotion in military and aviation technology almost to the last. In 1926 he sold the Sperry Gyroscope Company to enable him to devote more time to invention.[br]Principal Honours and DistinctionsJohn Fritz Medal 1927. President, American Society of Mechanical Engineers 1928.BibliographySperry filed over 400 patents, of which two can be singled out: 1908. US patent no. 434,048 (ship gyroscope); 1909. US patent no. 519,533 (ship gyrocompass set).Further ReadingT.P.Hughes, 1971, Elmer Sperry, Inventor and Engineer, Baltimore: Johns Hopkins University Press (a full and well-documented biography, with lists of his patents and published writings).LRD -
19 Tizard, Sir Henry Thoms
SUBJECT AREA: Weapons and armour[br]b. 23 August 1885 Gillingham, Kent, Englandd. 9 October 1959 Fareham, Hampshire, England[br]English scientist and administrator who made many contributions to military technology.[br]Educated at Westminster College, in 1904 Tizard went to Magdalen College, Oxford, gaining Firsts in mathematics and chemistry. After a period of time in Berlin with Nernst, he joined the Royal Institution in 1909 to study the colour changes of indicators. From 1911 until 1914 he was a tutorial Fellow of Oriel College, Oxford, but with the outbreak of the First World War he joined first the Royal Garrison Artillery, then, in 1915, the newly formed Royal Flying Corps, to work on the development of bomb-sights. Successively in charge of testing aircraft, a lieutenant-colonel in the Ministry of Munitions and Assistant Controller of Research and Experiments for the Royal Air Force, he returned to Oxford in 1919 and the following year became Reader in Chemical Thermodynamics; at this stage he developed the use of toluene as an air-craft-fuel additive.In 1922 he was appointed an assistant secretary at the government Department of Industrial and Scientific Research, becoming Principal Assistant Secretary in 1922 and its Permanent Director in 1927; during this time he was also a member of the Aeronautical Research Committee, being Chairman of the latter in 1933–43. From 1929 to 1942 he was Rector of Imperial College. In 1932 he was also appointed Chairman of a committee set up to investigate possible national air-defence systems, and it was largely due to his efforts that the radar proposals of Watson-Watt were taken up and an effective system made operational before the outbreak of the Second World War. He was also involved in various other government activities aimed at applying technology to the war effort, including the dam-buster and atomic bombs.President of Magdalen College in 1942–7, he then returned again to Whitehall, serving as Chairman of the Advisory Council on Scientific Policy and of the Defence Research Policy Committee. Finally, in 1952, he became Pro-Chan-cellor of Southampton University.[br]Principal Honours and DistinctionsAir Force Cross 1918. CB 1927. KCB 1937. GCB 1949. American Medal of Merit 1947. FRS 1926. Ten British and Commonwealth University honorary doctorates. Hon. Fellowship of the Royal Aeronautical Society. Royal Society of Arts Gold Medal. Franklin Institute Gold Medal. President, British Association 1948. Trustee of the British Museum 1937–59.Bibliography1911, The sensitiveness of indicators', British Association Report (describes Tizard's work on colour changes in indicators).Further Reading1961, Biographical Memoirs of Fellows of the Royal Society VII, London: Royal Society.KFBiographical history of technology > Tizard, Sir Henry Thoms
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