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1 he failed chemistry
Макаров: он провалился по химии -
2 fail
1. [feıl] n1) неудача, провал2) провалившийся на экзамене2. [feıl] v♢
without fail - непременно, обязательно; навернякаI1. 1) терпеть неудачуto fail in a suit - юр. проиграть процесс
he failed for want of foresight - он потерпел неудачу из-за своей недальновидности
2) не сбываться, не удаваться2. подводить, не оправдать ожиданийas usual, he failed me at the last minute - как всегда, он подвёл меня в последнюю минуту
I'll be waiting for you, don't fail me - я буду ждать вас, не подведите меня
his heart didn't fail him - у него сердце не дрогнуло; он не испугался [ср. тж. 4, 1) и 5]
3. 1) быть недостаточным, не хвататьtime would fail me - у меня не будет времени, я не успею
words fail me - я не нахожу слов, мне не хватает слов
his courage failed him in the end - в конце концов у него не хватило мужества /он струсил/
2) испытывать недостаток (в чём-л.)I fail words to express my thanks - у меня нет слов, чтобы выразить благодарность
3) уменьшаться в количестве; кончаться, иссякатьour water supply has failed - у нас кончился запас воды, нам не хватило воды
4. 1) слабеть, ослабевать; терять силуhis sight is failing - его зрение слабеет, он теряет зрение
his heart is failing - у него сердце сдаёт [ср. тж. 2 и 5]
2) замирать3) прекращаться, приходить к концу; вымиратьthis house belonged to them until their family line failed - этот дом принадлежал им, пока не умер последний представитель их рода /пока не кончился их род/
5. переставать действовать, выходить из строяthe patient's heart failed - сердце больного перестало биться [ср. тж. 2 и 4, 1)]
6. вчт., лог. не выполняться; быть ложнымII А1. 1) проваливаться ( на экзамене)2) провалить (кого-л. на экзамене)3) разг. завалить, засыпать (какой-л. предмет на экзамене)2. не уродиться (о какой-л. культуре); быть небольшим ( об урожае)3. терпеть крах, обанкротиться (о фирме и т. п.); прекратить платежи (о банке и т. п.)II Б1. to fail to do smth.1) не суметь, не быть в состоянии, оказаться неспособным сделать что-л.all precautions failed to prevent the quarrel - никакие предосторожности не смогли предотвратить ссору
they failed to understand him - они оказались не в состоянии /не смогли/ понять его
his statements rarely failed to startle his hearers - его высказывания почти всегда поражали слушателей
things that cannot fail to be seen - вещи, которых нельзя не заметить
2) забыть сделать что-л.; не позаботиться о чём-л.the janitor had failed to call the fire department - дворник не позаботился о том, чтобы позвонить в пожарную охрану
3) не быть, не оказаться; не сделатьhis name failed to appear in the list - его фамилия оказалась не включённой в список
the report cannot fail to arouse grave misgivings - доклад не может не вызвать серьёзных опасений
he never fails to write to his mother every month - он неукоснительно пишет своей матери каждый месяц
2. to fail in smth. иметь какой-л. недостатокto fail in respect for smb. - не уважать кого-л., непочтительно относиться к кому-л.
he's a clever man but fails in perseverance - он умный человек, но ему не хватает упорства
his visit failed in its purpose - его визит не достиг цели /оказался неудачным/
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3 fail
1. intransitive verb1) (not succeed) scheitern (in mit)fail in one's duty — seine Pflicht versäumen
fail as a human being/a doctor — als Mensch/Arzt versagen
2) (miscarry, come to nothing) scheitern; fehlschlagenif all else fails — wenn alle Stricke od. Stränge reißen (ugs.)
3) (become bankrupt) Bankrott machen4) (in examination) nicht bestehen (in Akk.)5) (become weaker) [Augenlicht, Gehör, Gedächtnis, Stärke:] nachlassen; [Mut:] sinken6) (break down, stop) [Versorgung:] zusammenbrechen; [Motor, Radio:] aussetzen; [Generator, Batterie, Pumpe:] ausfallen; [Bremse, Herz:] versagen7) [Ernte:] schlecht ausfallen2. transitive verb1)fail to do something — (not succeed in doing) etwas nicht tun [können]
fail to achieve one's purpose/aim — seine Absicht/sein Ziel verfehlen
2) (be unsuccessful in) nicht bestehen [Prüfung]3) (reject) durchfallen lassen (ugs.) [Prüfling]4)fail to do something — (not do) etwas nicht tun; (neglect to do) [es] versäumen, etwas zu tun
I fail to see why... — ich sehe nicht ein, warum...
3. nounwords fail somebody — jemandem fehlen die Worte
without fail — auf jeden Fall; garantiert
* * *[feil] 1. verb1) (to be unsuccessful (in); not to manage( to do something): They failed in their attempt; I failed my exam; I failed to post the letter.) versagen, versäumen2) (to break down or cease to work: The brakes failed.) versagen4) ((in a test, examination etc) to reject (a candidate): The examiner failed half the class.) durchfallen (lassen)5) (to disappoint: They did not fail him in their support.) im Stich lassen•- academic.ru/26215/failing">failing2. preposition(if (something) fails or is lacking: Failing his help, we shall have to try something else.) in Ermangelung- failure- without fail* * *[feɪl]I. viI tried to persuade him to come, but I \failed ich habe versucht, ihn zum Kommen zu überreden, aber ich habe es nicht geschafftthis method never \fails diese Methode funktioniert immerwe \failed in our efforts to find a compromise wir haben uns vergeblich um einen Kompromiss bemühthe \failed to convince the jury es ist ihm nicht gelungen, die Jury zu überzeugento be doomed to \fail zum Scheitern verurteilt seinif all else \fails zur Not, wenn alle Stricke reißen fam2. (not do)▪ to \fail to do sth versäumen, etw zu tunshe \failed to arrive on time sie kam nicht pünktlichto \fail in one's duty [to sb] seiner Pflicht [jdm gegenüber] nicht nachkommento \fail to attend a meeting an einem Treffen nicht teilnehmento \fail to appreciate sth etw nicht zu schätzen wissenyou couldn't \fail to be impressed by their efficiency man war unweigerlich von ihrer Effizienz beeindrucktthey surely can't \fail to notice that... es kann ihnen nicht entgangen sein, dass...this trick never \fails to amuse the children dieser Trick bringt die Kinder immer zum LachenI \fail to see [or understand] what/why/how... ich verstehe nicht, was/warum/wie...4. SCH, UNIV durchfallento \fail on a subject in einem Fach durchfallento \fail dismally mit Pauken und Trompeten durchfallen fammy courage \failed der Mut verließ michto be \failing fast im Sterben liegen7. (go bankrupt) bankrottgehenII. vt1. (not pass)to \fail a course/subject einen Kurs/ein Fach nicht bestehento \fail an exam/a test bei einer Prüfung/einem Test durchfallento \fail an interview bei einem Bewerbungsgespräch versagento \fail one's driving test bei der Fahrprüfung durchfallen2. (give failing grade)3. (let down)my courage \failed me mich verließ der Mutwords \fail me mir fehlen die WorteIII. n negative PrüfungsarbeitJohn got four \fails in his exams John ist bei seinen Prüfungen in vier Fächern durchgefallenis this one a pass or a \fail? hat dieser Kandidat bestanden oder ist er durchgefallen?▶ without \fail auf jeden Fall, ganz sicher* * *[feɪl]1. vi1) (= be unsuccessful) keinen Erfolg haben; (in mission, life etc) versagen, scheitern; (campaign, efforts, negotiations, plan, experiment, marriage) fehlschlagen, scheitern; (undertaking, attempt) fehlschlagen, misslingen, missglücken; (applicant, application) nicht angenommen werden; (election candidate, THEAT play) durchfallen; (business) eingehen; (charm, attempts at persuasion etc) vergeblich or umsonst seinhe failed in his attempt to take control of the company — sein Versuch, die Leitung der Firma zu übernehmen, schlug fehl or blieb erfolglos or missglückte
to fail by 5 votes (motion) — mit 5 Stimmen Mehrheit abgelehnt werden; (person) um 5 Stimmen geschlagen werden
2) (= not pass exam) durchfallen3)(= fall short)
where he/the essay fails is in not being detailed enough — sein Fehler/der Fehler des Aufsatzes ist, dass er nicht ausführlich genug istthis report fails in that it comes up with no clear proposals —
4) (= grow feeble health) sich verschlechtern; (hearing, eyesight) nachlassen; (invalid) schwächer werden5) (= stop working, be cut off etc generator, battery, radio, electricity, pump, engine) ausfallen; (brakes) versagen; (supply, wind) ausbleiben; (heart etc) versagen, aussetzenthe crops failed — es gab ein Missernte; (completely) die Ernte fiel aus
2. vtto fail an exam — eine Prüfung nicht bestehen, durch eine Prüfung fallen
3)he failed to win support for his proposal — er konnte keine Unterstützung für seinen Vorschlag finden
I fail to see why — es ist mir völlig unklar, warum; (indignantly) ich sehe gar nicht ein, warum
I failed to understand how/what... — ich konnte nicht verstehen, wie/was...
3. n1)without fail — ganz bestimmt, auf jeden Fall
2)(= failed candidate, exam)
there were ten fails — zehn sind durchgefallen or durchgerasselt (inf)she got a fail in history — in Geschichte ist sie hängen geblieben (inf) or durchgefallen
* * *fail [feıl]A v/i1. ermangeln (of, in gen):he fails in perseverance es fehlt oder mangelt ihm an Ausdauer2. nachlassen, schwinden (Kräfte etc), ausbleiben, versiegen (Quellen etc):4. abnehmen, schwächer werden:his eyesight failed seine Sehkraft ließ nach5. versagen:6. fehlschlagen, scheitern, misslingen, seinen Zweck verfehlen, Misserfolg haben, Schiffbruch erleiden, es nicht fertigbringen ( to do zu tun):he (the plan) failed er (der Plan) scheiterte;if everything else fails wenn alle Stricke reißen umg;it never fails das wirkt immer;he failed in all his attempts alle seine Versuche schlugen fehl;the prophecy failed die Prophezeiung traf nicht ein;he failed to come er kam nicht;he never fails to come er kommt immer;don’t fail to come komme ja oder ganz bestimmt;he cannot fail to win er muss einfach gewinnen;he fails in his duty er vernachlässigt seine Pflicht8. fehlgehen, irren:fail in one’s hopes sich in seinen Hoffnungen täuschenB v/t1. jemandem versagen:his courage failed him ihn verließ der Mut;2. a) jemanden im Stich lassen, enttäuschenhis luck failed him das Glück verließ ihn3. SCHULEb) in einer Prüfung etc durchfallen:C s2. without fail mit Sicherheit, ganz bestimmt* * *1. intransitive verb1) (not succeed) scheitern (in mit)fail as a human being/a doctor — als Mensch/Arzt versagen
2) (miscarry, come to nothing) scheitern; fehlschlagenif all else fails — wenn alle Stricke od. Stränge reißen (ugs.)
3) (become bankrupt) Bankrott machen4) (in examination) nicht bestehen (in Akk.)5) (become weaker) [Augenlicht, Gehör, Gedächtnis, Stärke:] nachlassen; [Mut:] sinken6) (break down, stop) [Versorgung:] zusammenbrechen; [Motor, Radio:] aussetzen; [Generator, Batterie, Pumpe:] ausfallen; [Bremse, Herz:] versagen7) [Ernte:] schlecht ausfallen2. transitive verb1)fail to do something — (not succeed in doing) etwas nicht tun [können]
fail to achieve one's purpose/aim — seine Absicht/sein Ziel verfehlen
2) (be unsuccessful in) nicht bestehen [Prüfung]3) (reject) durchfallen lassen (ugs.) [Prüfling]4)fail to do something — (not do) etwas nicht tun; (neglect to do) [es] versäumen, etwas zu tun
I fail to see why... — ich sehe nicht ein, warum...
5) (not suffice for) im Stich lassen3. nounwithout fail — auf jeden Fall; garantiert
* * *(exam) v.durchfallen v. v.fehlschlagen v.misslingen v.scheitern v.versagen v. -
4 fail
feɪl
1. сущ. неудача, провал It's the difference between a pass and a fail. ≈ Существует разница между посредственной сдачей (экзамена) и провалом (на экзамене). without fail Syn: failure
2. гл.
1) а) недоставать, не хватать( о чем-л. необходимом или желательном), иметь недостаток в чем-л;
истощаться, вырабатываться, растрачиваться I fail words to express my feelings. ≈ У меня нет слов, чтобы выразить мои чувства. Soon would our food and water fail us here. ≈ Скоро у нас кончатся пища и вода. failing this Syn: lack, want б) быть неадекватным;
быть недостаточным в) не сбываться, обманывать ожидания, не удаваться His being a protestant could not fail to prejudice the jury. ≈ То, что он протестант, едва ли могло не вызвать негативного настроя присяжных. My project failed. ≈ Моя затея не удалась.
2) а) потерпеть неудачу;
не иметь успеха (in) to fail dismally, miserably ≈ потерпеть страшную неудачу to fail in business ≈ потерпеть крах в бизнесе fail to fuck б) не исполнить, не сделать;
подвести He failed to keep his word. ≈ Он не сдержал слова. If only my memory does not fail me. ≈ Если только мне не изменяет память But take care not to fail me. ≈ Постарайся не подвести меня. He failed to comprehend the seriousness of the problem. ≈ Он не понимает всей серьезности проблемы. Syn: disappoint, default в) разг. проваливать(ся) на экзаменах to fail a student on an examination ≈ завалить студента на экзамене Syn: pluck г) с.-х. не дать всходов, не родить
3) а) исчезать, затихать, умирать Religion seems to be failing when it is merely changing its form. ≈ Казалось бы, вера вымирает, но она на самом деле лишь меняет форму. The music rose again from where it seem'd to fail. ≈ Музыка уже, казалось, умолкла, но она тут же зазвучала вновь. б) ослабевать, терять силы;
заболевать;
перестать действовать, выйти из строя His heart failed. ≈ У него случился инфаркт. That kind old lady had been failing since the spring of 1829 and had died in October. ≈ Этой доброй старой леди становилось все хуже и хуже с весны 1829 года, а в октябре она скончалась. fail safe
4) фин. обанкротиться, стать неплатежеспособным неудача, провал повалившийся на экзамене > without * непременно, обязательно;
наверняка > I'll come without * я обязательно приду терпеть неудачу - to * in life быть неудачником (в жизни) - to * in a suit (юридическое) проиграть процесс - he *ed for want of foresight он потерпел неудачу из-за своей недальновидности не сбываться, не удаваться - all our plans *ed все наши планы рухнули - his attempt has *ed его попытка не удалась - if our hopes should * если наши надежды не оправдаются - to * the height не взять высоту (легкая атлетика) подводить, не оправдать ожиданий - as usual, he *ed me at the last minute как всегда, он подвел меня в последнюю минуту - I'll be waiting for you, don't * me я буду ждать вас, не подведите меня - his heart didn't * him у него сердце не дрогнуло;
он не испугался быть недостаточным, не хватать - time wuold * me у меня не будет времени, я не успею - words * me я не нахожу слов, мне не хватает слов - his courage *ed him in the end в конце концов у него не хватило мужества /он струсил/ - for once his wit *ed him на этот раз он не нашел остроумного ответа испытывать недостаток( в чем-л.) - I * words to express my thanks у меня нет слов, чтобы выразить благодарность уменьшаться в количестве;
кончаться, иссякать - our water supply has *ed у нас кончился запас воды, нам не хватило воды слабеть, ослабевать;
терять силу - the wind *ed ветер стих - the light *ed свет погас - daylight is *ing смеркается - his health *ed его здоровье сильно пошатнулось - his sight is *ing его зрение слабеет, он теряет зрение - his heart is *ing у него сердце сдает - he is old and *ing rapidly он стар и быстро теряет силы замирать - the radio signals *ed радиосигналы стали неразличимы прекращаться, приходить к концу;
вымирать - their family line *ed их род угас - this house belonged to them until their family line *ed этот дом принадлежал им, пока не умер последний представитель их рода /пока не кончился их род/ переставать действовать, выходить из строя - the engine *ed unexpectedly двигатель неожиданно отказал - the patient's heart *ed сердце больного перестало биться( компьютерное) (логика) не выполняться;
быть ложным проваливаться( на экзамене) - he *ed in mathematics он провалился по математике провалить( кого-л. на экзамене) - they *ed two candidates они провалили двух кандидатов (разговорное) завалить, засыпать( какой-л. предмет на экзамене) - he *ed chemistry он провалился по химии - she *ed her driving test она не сдала экзамен по вождению не уродиться( о какой-л. культуре) ;
быть небольшим( об урожае) - the potato crop *ed this year в этом году картофель не уродился терпеть крах, обанкротиться ( о фирме и т. п.) ;
прекратить платежи( о банке и т. п.) - to fail to do smth. не суметь, не быть в состоянии, оказаться неспособным сделать что-л.;
забыть сделать что-л.;
не позаботиться о чем-л.;
не быть, не оказаться;
не сделать - we *ed to arrive in time нам не удалось приехать вовремя - all precautions *ed to prevent the quarrel никакие предосторожности не смогли предотвратить ссору - they *ed to understand him они оказались не в состоянии /не смогли/ понять его - to * to be moved оставаться равнодушным - his statements rarely *ed to startle his hearers его высказывания почти всегда поражали слушателей - they could hardly * to meet они не могли не встретиться - things that cannot * to be seen вещи, которых нельзя не заметить - we cannot * to be conscious of it мы не можем не сознавать этого - the janitor had *ed to call the fire department дворник не позаботился о том, чтобы позвонить в пожарную охрану - don't * to let me know не забудьте сообщить мне - his name *ed to appear in the list его фамилия оказалась невключенной в список - the report cannot * to arouse grave misgivings доклад не может не вызвать серьезных опасений - he never *s to write to his mother every month он неукоснительно пишет своей матери каждый месяц - he did not * to keep his word он сдержал свое слово - to fail in smth. иметь какой-л. недостаток - to * in beauty быть некрасивым - to * in respect for smb. не уважать кого-л., непочтительно относиться к кому-л. - this novel *s in unity в этом романе недостает внутреннего единства - he's a clever man but *s in perseverance он умный человек, но ему не хватает упорства - his visit *ed in its purpose его визит не достиг цели /оказался неудачным/ don't ~ to come обязательно приходите;
I fail to see your meaning не могу понять, о чем вы говорите ~ не исполнить, не сделать;
to fail in one's duties пренебрегать своими обязанностями;
don't fail to let me know не забудьте дать мне знать fail быть недостаточным ~ быть отклоненным судом, быть отказанным (об исковом требовании) ~ выходить из строя ~ изменить;
покинуть;
his courage failed him мужество покинуло его;
his heart failed him у него сердце упало, он испугался ~ испытывать недостаток ~ иссякать ~ не исполнить, не сделать;
to fail in one's duties пренебрегать своими обязанностями;
don't fail to let me know не забудьте дать мне знать ~ не исполнять, не делать ~ не оправдывать ожиданий ~ не сбываться, обманывать ожидания, не удаваться;
the maize failed that year кукуруза не удалась в тот год;
I will never fail you я никогда вас не подведу ~ недоставать, не хватать;
иметь недостаток (в чем-л.) ;
words fail me не нахожу слов ~ ослабевать, терять силы;
his sight has failed of late его зрение резко ухудшилось за последнее время ~ отказывать ~ отпадать( о встречном удовлетворении) ~ перестать действовать;
выйти из строя ~ повреждаться ~ подходить к концу ~ потерпеть неудачу;
не иметь успеха;
my attempt has failed моя попытка не удалась ~ прекращать платежи ~ прекращаться ~ разг. провалить(ся) на экзаменах;
to fail in mathematics провалиться по математике ~ разрушаться ~ вчт. сбой ~ становиться банкротом ~ стать неплатежеспособным ~ терпеть неудачу ~ разг. провалить(ся) на экзаменах;
to fail in mathematics провалиться по математике ~ не исполнить, не сделать;
to fail in one's duties пренебрегать своими обязанностями;
don't fail to let me know не забудьте дать мне знать ~ to fulfil не исполнять he failed to make use of the opportunity он не воспользовался этой возможностью ~ изменить;
покинуть;
his courage failed him мужество покинуло его;
his heart failed him у него сердце упало, он испугался ~ изменить;
покинуть;
his courage failed him мужество покинуло его;
his heart failed him у него сердце упало, он испугался ~ ослабевать, терять силы;
his sight has failed of late его зрение резко ухудшилось за последнее время don't ~ to come обязательно приходите;
I fail to see your meaning не могу понять, о чем вы говорите ~ не сбываться, обманывать ожидания, не удаваться;
the maize failed that year кукуруза не удалась в тот год;
I will never fail you я никогда вас не подведу ~ не сбываться, обманывать ожидания, не удаваться;
the maize failed that year кукуруза не удалась в тот год;
I will never fail you я никогда вас не подведу ~ потерпеть неудачу;
не иметь успеха;
my attempt has failed моя попытка не удалась this novel fails in unity в этом романе нет единства;
time would fail me я не успею, мне не позволит время this novel fails in unity в этом романе нет единства;
time would fail me я не успею, мне не позволит время without ~ наверняка, непременно, обязательно ~ недоставать, не хватать;
иметь недостаток (в чем-л.) ;
words fail me не нахожу слов -
5 A level
['ei,levəl]((abbreviation) Advanced Level; (in Britain) an examination in a particular subject that pupils have to pass if they want to go to university; the level of these examinations: I failed my Chemistry A level; What subjects are you taking at A level?) adgangsgivende eksamen til universitet, fx studentereksamen* * *['ei,levəl]((abbreviation) Advanced Level; (in Britain) an examination in a particular subject that pupils have to pass if they want to go to university; the level of these examinations: I failed my Chemistry A level; What subjects are you taking at A level?) adgangsgivende eksamen til universitet, fx studentereksamen -
6 Mitscherlich, Alexander
SUBJECT AREA: Paper and printing[br]b. 28 May 1836 Berlin, Germanyd. 31 May 1918 Oberstdorf, Germany[br]German inventor of sulphite wood pulp for papermaking.[br]Mitscherlich had an impeccable scientific background; his father was the celebrated chemist Eilhardt Mitscherlich, discoverer of the law of isomorphism, and his godfather was Alexander von Humboldt. At first his progress at school failed to live up to this auspicious beginning and his father would only sanction higher studies if he first qualified as a teacher so as to assure a means of livelihood. Alexander rose to the occasion and went on to gain his doctorate at the age of 25 in the field of mineralogical chemistry. He worked for a few years as Assistant to the distinguished chemists Wöhler in Göttingen and Wurtz in Paris. On his father's death in 1863, he succeeded him as teacher of chemistry in the University of Berlin. In 1868 he accepted a post in the newly established Forest Academy in Hannoversch-Munden, teaching chemistry, physics and geology. The post offered little financial advantage, but it left him more time for research. It was there that he invented the process for producing sulphite wood pulp.The paper industry was seeking new raw materials. Since the 1840s pulp had been produced mechanically from wood, but it was unsuitable for making fine papers. From the mid-1860s several chemists began tackling the problem of separating the cellulose fibres from the other constituents of wood by chemical means. The American Benjamin C.Tilghman was granted patents in several countries for the treatment of wood with acid or bisulphite. Carl Daniel Ekman in Sweden and Karl Kellner in Austria also made sulphite pulp, but the credit for devising the process that came into general use belongs to Mitscherlich. His brother Oskar came to him at the Academy with plans for producing pulp by the action of soda, but the results were inferior, so Mitscherlich substituted calcium bisulphite and in the laboratory obtained good results. To extend this to a large-scale process, he was forced to set up his own mill, where he devised the characteristic towers for making the calcium bisulphite, in which water trickling down through packed lime met a rising current of sulphur dioxide. He was granted a patent in Luxembourg in 1874 and a German one four years later. The sulphite process did not make him rich, for there was considerable opposition to it; government objected to the smell of sulphur dioxide, forestry authorities were anxious about the inroads that might be made into the forests and his patents were contested. In 1883, with the support of an inheritance from his mother, Mitscherlich resigned his post at the Academy to devote more time to promoting his invention. In 1897 he at last succeeded in settling the patent disputes and achieving recognition as the inventor of sulphite pulp. Without this raw material, the paper industry could never have satisfied the insatiable appetite of the newspaper presses.[br]Further ReadingH.Voorn "Alexander Mitscherlich, inventor of sulphite wood pulp", Paper Maker 23(1): 41–4.LRDBiographical history of technology > Mitscherlich, Alexander
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7 Davy, Sir Humphry
[br]b. 17 December 1778 Penzance, Cornwall, Englandd. 29 May 1829 Geneva, Switzerland[br]English chemist, discoverer of the alkali and alkaline earth metals and the halogens, inventor of the miner's safety lamp.[br]Educated at the Latin School at Penzance and from 1792 at Truro Grammar School, Davy was apprenticed to a surgeon in Penzance. In 1797 he began to teach himself chemistry by reading, among other works, Lavoisier's elementary treatise on chemistry. In 1798 Dr Thomas Beddoes of Bristol engaged him as assistant in setting up his Pneumatic Institution to pioneer the medical application of the newly discovered gases, especially oxygen.In 1799 he discovered the anaesthetic properties of nitrous oxide, discovered not long before by the chemist Joseph Priestley. He also noted its intoxicating qualities, on account of which it was dubbed "laughing-gas". Two years later Count Rumford, founder of the Royal Institution in 1800, appointed Davy Assistant Lecturer, and the following year Professor. His lecturing ability soon began to attract large audiences, making science both popular and fashionable.Davy was stimulated by Volta's invention of the voltaic pile, or electric battery, to construct one for himself in 1800. That enabled him to embark on the researches into electrochemistry by which is chiefly known. In 1807 he tried decomposing caustic soda and caustic potash, hitherto regarded as elements, by electrolysis and obtained the metals sodium and potassium. He went on to discover the metals barium, strontium, calcium and magnesium by the same means. Next, he turned his attention to chlorine, which was then regarded as an oxide in accordance with Lavoisier's theory that oxygen was the essential component of acids; Davy failed to decompose it, however, even with the aid of electricity and concluded that it was an element, thus disproving Lavoisier's view of the nature of acids. In 1812 Davy published his Elements of Chemical Philosophy, in which he presented his chemical ideas without, however, committing himself to the atomic theory, recently advanced by John Dalton.In 1813 Davy engaged Faraday as Assistant, perhaps his greatest service to science. In April 1815 Davy was asked to assist in the development of a miner's lamp which could be safely used in a firedamp (methane) laden atmosphere. The "Davy lamp", which emerged in January 1816, had its flame completely surrounded by a fine wire mesh; George Stephenson's lamp, based on a similar principle, had been introduced into the Northumberland pits several months earlier, and a bitter controversy as to priority of invention ensued, but it was Davy who was awarded the prize for inventing a successful safety lamp.In 1824 Davy was the first to suggest the possibility of conferring cathodic protection to the copper bottoms of naval vessels by the use of sacrificial electrodes. Zinc and iron were found to be equally effective in inhibiting corrosion, although the scheme was later abandoned when it was found that ships protected in this way were rapidly fouled by weeds and barnacles.[br]Principal Honours and DistinctionsKnighted 1812. FRS 1803; President, Royal Society 1820. Royal Society Copley Medal 1805.Bibliography1812, Elements of Chemical Philosophy.1839–40, The Collected Works of Sir Humphry Davy, 9 vols, ed. John Davy, London.Further ReadingJ.Davy, 1836, Memoirs of the Life of Sir Humphry Davy, London (a classic biography). J.A.Paris, 1831, The Life of Sir Humphry Davy, London (a classic biography). H.Hartley, 1967, Humphry Davy, London (a more recent biography).J.Z.Fullmer, 1969, Cambridge, Mass, (a bibliography of Davy's works).ASD -
8 Dow, Herbert Henry
SUBJECT AREA: Metallurgy[br]b. 26 February 1866 Belleville, Ontario, Canadad. 15 October 1930 Rochester, Minnesota, USA[br]American industrial chemist, pioneer manufacturer of magnesium alloys.[br]Of New England ancestry, his family returned there soon after his birth and later moved to Cleveland, Ohio. In 1884, Dow entered the Case School of Applied Science, graduating in science four years later. His thesis dealt partly with the brines of Ohio, and he was persuaded to present a paper on brine to the meeting of the American Association for he Advancement of Science being held in Cleveland the same year. That entailed visits to collect samples of brines from various localities, and led to the observation that their composition varied, one having a higher lithium content while another was richer in bromine. This study of brines proved to be the basis for his career in industrial chemistry. In 1888 Dow was appointed Professor of Chemistry at the Homeopathic Hospital College in Cleveland, but he continued to work on brine, obtaining a patent in the same year for extracting bromine by blowing air through slightly electrolysed brine. He set up a small company to exploit the process, but it failed; the process was taken up and successfully worked by the Midland Chemical Company in Midland, Michigan. The electrolysis required a direct-current generator which, when it was installed in 1892, was probably the first of its kind in America. Dow next set up a company to produce chlorine by the electrolysis of brine. It moved to Midland in 1896, and the Dow Central Company purchased the Midland Chemical Company in 1900. Its main concern was the manufacture of bleaching powder, but the company continued to grow, based on Dow's steady development of chemical compounds that could be derived from brines. His search for further applications of chlorine led to the making of insecticides and an interest in horticulture. Meanwhile, his experience at the Homeopathic Hospital doubtless fired an interest in pharmaceuticals. One of the substances found in brine was magnesium chloride, and by 1918 magnesium metal was being produced on a small scale by electrolysis. An intensive study of its alloys followed, leading to the large-scale production of these important light-metal alloys, under the name of Dowmetals. Two other "firsts" achieved by the company were the synthetic indigo process and the production of the element iodine in the USA. The Dow company became one of the leading chemical manufacturers in the USA, and at the same time Dow played an active part in public life, serving on many public and education boards.[br]Principal Honours and DistinctionsSociety of Chemical Industry Perkin Medal 1930.BibliographyDow was granted 65 patents for a wide range of chemical processes.Further ReadingObituary, 1930, Ind. Eng. Chem. (October)."The Dow Chemical Company", 1925, Ind. Eng. Chem. (September)LRD -
9 examination
1) ((a) close inspection: Make a thorough examination of the area where the crime took place; On examination the patient was discovered to have appendicitis.) inspección, examen2) ((also exam) a test of knowledge or ability: school examinations; She is to take a French/dancing exam; (also adjective) examination/exam papers; He failed/passed the English exam.) examen3) ((a) formal questioning (eg of a witness).) interrogatorio1. examen2. reconocimiento / revisióntr[ɪgzæmɪ'neɪʃən]1 SMALLEDUCATION/SMALL examen nombre masculino■ detailed examination of the gun revealed new fingerprints en un examen detallado del arma se descubrieron nuevas huellas dactilares3 SMALLMEDICINE/SMALL reconocimiento4 SMALLLAW/SMALL interrogatorio■ the prosecution subjected the witness to yet another examination el fiscal sometió al testigo a otro interrogatorio\SMALLIDIOMATIC EXPRESSION/SMALLto be under examination (questioned) estar sometido,-a a un interrogatorio 2 (looked at, investigated) estar sometido,-a a examento sit an examination / take an examination examinarseexamination [ɪg.zæmə'neɪʃən, ɛg-] n1) test: examen m2) inspection: inspección f, revisión f3) investigation: examen m, estudio mn.• examen s.m.• interrogación s.f.• investigación s.f.• reconocimiento s.m.• reconocimiento médico s.m.• registro s.m.ɪg'zæmə'neɪʃən, ɪgˌzæmɪ'neɪʃən1) c (frml Educ) examen mto take o (BrE also) sit an examination — dar* or hacer* or (CS) rendir* or (Méx) tomar un examen, examinarse (Esp)
to pass an examination — aprobar* or pasar un examen
to fail an examination — reprobar* or (Esp) suspender or (Ur) perder* un examen
2) c ua) ( inspection - of accounts) revisión f, inspección f; (- of passports) control m; (- by doctor) reconocimiento m, examen m, revisación f (RPl)b) (study, investigation) examen m3) c ( of witness) interrogatorio m[ɪɡˌzæmɪ'neɪʃǝn]1. N1) (Scol, Univ) (=test) examen mto take or sit an examination — presentarse a un examen
oral examination — examen m oral
2) (=inspection) [of premises] inspección f ; [of luggage] registro m ; [of account] revisión f, inspección f ; [of witness, suspect] interrogatorio mon examination — al examinarlo/examinarlos etc
the matter is under examination — el asunto está siendo investigado or estudiado
4) (Med) reconocimiento m2.CPDexamination board N — (Brit) una de las varias juntas que coordinan los exámenes a nivel nacional
examination paper N — examen m (la hoja)
examination results N — resultados mpl de los exámenes
examination room N — sala f del examen
* * *[ɪg'zæmə'neɪʃən, ɪgˌzæmɪ'neɪʃən]1) c (frml Educ) examen mto take o (BrE also) sit an examination — dar* or hacer* or (CS) rendir* or (Méx) tomar un examen, examinarse (Esp)
to pass an examination — aprobar* or pasar un examen
to fail an examination — reprobar* or (Esp) suspender or (Ur) perder* un examen
2) c ua) ( inspection - of accounts) revisión f, inspección f; (- of passports) control m; (- by doctor) reconocimiento m, examen m, revisación f (RPl)b) (study, investigation) examen m3) c ( of witness) interrogatorio m -
10 A level
noun(Brit. Sch.) ≈ Abitur, das; Abschluss der Sekundarstufe II•• Cultural note:take one's A levels — ≈ das Abitur machen
A level - Advanced levelEin Examen, das von vielen Schülern in England und Wales, üblicherweise im letzten Jahr der weiterführenden Schule, abgelegt wird. Die Abschlussnoten ( grades) werden in jedem Fach einzeln vergeben. Schüler, die ein Hochschulstudium ( higher education) anstreben, absolvieren in der Regel drei bis vier A levels und werden von den Universitäten und anderen Institutionen entsprechend ihren Abschlussnoten, besonders in den für ihr Studienfach relevanten Fächern, ausgewählt. Siehe auch AS Level* * *['ei,levəl]((abbreviation) Advanced Level; (in Britain) an examination in a particular subject that pupils have to pass if they want to go to university; the level of these examinations: I failed my Chemistry A level; What subjects are you taking at A level?)* * *A lev·el[ˈeɪlevəl]n BRIT* * *['eɪ"levl]n (Brit)Abschluss m der Sekundarstufe 2to take one's A levels — ≈ das Abitur machen
3 A levels — ≈ das Abitur in 3 Fächern
* * *he has three A levels er hat das Abitur in drei Fächern gemacht;she took A levels in English, French and German sie hat das Abitur in Englisch, Französisch und Deutsch gemacht* * *noun(Brit. Sch.) ≈ Abitur, das; Abschluss der Sekundarstufe II•• Cultural note:take one's A levels — ≈ das Abitur machen
Ein Examen, das von vielen Schülern in England und Wales, üblicherweise im letzten Jahr der weiterführenden Schule, abgelegt wird. Die Abschlussnoten ( grades) werden in jedem Fach einzeln vergeben. Schüler, die ein Hochschulstudium ( higher education) anstreben, absolvieren in der Regel drei bis vier A levels und werden von den Universitäten und anderen Institutionen entsprechend ihren Abschlussnoten, besonders in den für ihr Studienfach relevanten Fächern, ausgewählt. Siehe auch AS Level -
11 A level
'ei,levəl((abbreviation) Advanced Level; (in Britain) an examination in a particular subject that pupils have to pass if they want to go to university; the level of these examinations: I failed my Chemistry A level; What subjects are you taking at A level?) allmennfag (i videregående skole); deleksamen til examen artium; VK2\/ˈeɪˌlevl\/se ➢ advanced level -
12 A level
'ei,levəl((abbreviation) Advanced Level; (in Britain) an examination in a particular subject that pupils have to pass if they want to go to university; the level of these examinations: I failed my Chemistry A level; What subjects are you taking at A level?) selectividad
••
Cultural note:
Es el término genérico para referirse a los exámenes que hacen los estudiantes que desean acceder a la enseñanza superior. En el sistema reformado, el examen se divide en dos partes: AS level y A2. Por lo general los estudiantes hacen el A2 en el último año de la enseñanza secundaria para así completar íntegramente el programa del A level. Las universidades u otras instituciones seleccionan a los alumnos en razón de las calificaciones que hayan obtenido, especialmente en aquellas materias que tienen relación directa con el área de estudio terciario que se ha elegido. Ver tb AS level* * *
••
Cultural note:
Es el término genérico para referirse a los exámenes que hacen los estudiantes que desean acceder a la enseñanza superior. En el sistema reformado, el examen se divide en dos partes: AS level y A2. Por lo general los estudiantes hacen el A2 en el último año de la enseñanza secundaria para así completar íntegramente el programa del A level. Las universidades u otras instituciones seleccionan a los alumnos en razón de las calificaciones que hayan obtenido, especialmente en aquellas materias que tienen relación directa con el área de estudio terciario que se ha elegido. Ver tb AS level -
13 A level
['ei,levəl]((abbreviation) Advanced Level; (in Britain) an examination in a particular subject that pupils have to pass if they want to go to university; the level of these examinations: I failed my Chemistry A level; What subjects are you taking at A level?) -
14 A level
['ei,levəl]((abbreviation) Advanced Level; (in Britain) an examination in a particular subject that pupils have to pass if they want to go to university; the level of these examinations: I failed my Chemistry A level; What subjects are you taking at A level?) emelt szintű érettségi -
15 A level
['ei,levəl]((abbreviation) Advanced Level; (in Britain) an examination in a particular subject that pupils have to pass if they want to go to university; the level of these examinations: I failed my Chemistry A level; What subjects are you taking at A level?) -
16 A level
n. lise bitirme sınavı [brit.]* * *['ei,levəl]((abbreviation) Advanced Level; (in Britain) an examination in a particular subject that pupils have to pass if they want to go to university; the level of these examinations: I failed my Chemistry A level; What subjects are you taking at A level?) (İngiltere'de) ileri düzeyde eğitim sertifikası -
17 A level
['ei,levəl]((abbreviation) Advanced Level; (in Britain) an examination in a particular subject that pupils have to pass if they want to go to university; the level of these examinations: I failed my Chemistry A level; What subjects are you taking at A level?) -
18 A level
'ei,levəl((abbreviation) Advanced Level; (in Britain) an examination in a particular subject that pupils have to pass if they want to go to university; the level of these examinations: I failed my Chemistry A level; What subjects are you taking at A level?) -
19 exam
n. шалгалт. I've failed my chemistry \exam. Би химийнхээ шалгалтанд унасан. -
20 A level
['ei,levəl]((abbreviation) Advanced Level; (in Britain) an examination in a particular subject that pupils have to pass if they want to go to university; the level of these examinations: I failed my Chemistry A level; What subjects are you taking at A level?) (esame finale della scuola secondaria)* * *A level /ˈeɪlɛvl/loc. n. (GB, abbr. di advanced level)1 esame finale a livello avanzato; DIALOGO → - Before an exam- I've got my History A level tomorrow, domani ho l'esame finale di storia a scuola NOTE DI CULTURA: A level: in GB, tranne che in Scozia (► higher), è l'equivalente dell'esame di maturità. Viene sostenuto alla fine di un biennio di studi che va in genere dai 16 ai 18 anni ed è successivo al ► «GCSE». Le materie d'esame sono scelte dallo studente: in genere sono tre o quattro e ciascuna comporta un A level e una votazione specifica2 promozione in tale esame.
См. также в других словарях:
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