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1 suspender
v.1 to hang (up).lo suspendieron de una cuerda/de un clavo they hung it from a rope/nailMaría suspende los cuadros Mary hangs the paintings.2 to fail (examen, asignatura). (peninsular Spanish)me suspendieron la Historia I failed History3 to suspend.el partido se suspendió a causa de la lluvia the match was postponed o called off because of the rainEllos suspendieron la sesión They suspended the session.El gerente suspende a Ricardo The administrator suspends Richard.4 to suspend (sancionar) (trabajador).suspender a alguien de empleo y sueldo to suspend somebody without pay5 to cancel, to call off, to scrub.La agencia suspendió el concierto The agency canceled the concert.6 to stop.Suspendí fumar I stopped smoking.* * *1 (levantar) to hang, hang up, suspend2 (aplazar - gen) to postpone, put off, delay; (- reunión) to adjourn5 figurado (causar admiración) to amaze, astonish\suspender de empleo y sueldo to suspender without pay* * *verb1) to suspend2) fail* * *1. VT1) (=colgar) to hang, hang up, suspend (de from)2) (=interrumpir) [+ pago, trabajo] to stop, suspend; [+ reunión, sesión] to adjourn; [+ línea, servicio] to discontinue; [+ procedimiento] to interrupt; [+ plan, viaje] to call off, cancelsuspender hasta más tarde — to put off till later, postpone for a time
han suspendido la boda — they've called the wedding off, they've cancelled the wedding
3) (Escol) [+ asignatura] to fail2.VI to fail* * *1.verbo transitivo1)a) ( suprimir) < pagos> to suspend; <garantía/derecho> to suspend, withdraw; < sesión> to adjourn; < viaje> ( para siempre) to call off; ( temporalmente) to put off; < tratamiento> to stop, suspend; < servicio> to suspend, discontinue; < programa> to cancelb) ( de sus funciones) <empleado/jugador> to suspend; < alumno> (AmL) to suspend2) ( colgar)3) (Esp) <asignatura/examen/alumno> to fail2.suspender vi (Esp) to fail* * *= discontinue, halt, hang, stop, suspend, suspend, adjourn, call + a moratorium on, fail, flunk (out), call off.Ex. Systems like OCLC are going from classical catalogs in the direction of online catalogs, and at least one institution on the OCLC system has discontinued adding cards to its catalog.Ex. Consequently, a freeze-frame or still-picture effect can be achieved by simply halting the movement of the head across the disc.Ex. The main rule, however, is do not have loose cables hanging all over the place -- not only is it unsightly but also extremely dangerous.Ex. Program function key 1 (FP1) tells DOBIS/LIBIS to stop whatever it is doing and go back to the function selection screen.Ex. The appearance of this volume aroused such a furor within and without the British Museum that further publication of the catalog was suspended.Ex. Do not suspend a book by holding its casing only.Ex. This copyright law was tabled in the Senate in June 79 and the 2nd debate was adjourned to enable public comment.Ex. Let us call a moratorium on writing about the subject and devote our energies to doing comparative work.Ex. These courses give the student who has failed a second chance to make new start.Ex. Participants in the conference on social sciences discussed the possibilities for eliminating punitive aspects of grading systems, such as flunking courses.Ex. The second training run for the marathon was called off because of poor weather conditions.----* suspender actividades = cease + activities.* suspender debido a la lluvia = rain out, wash out.* suspender en el aire = hover.* suspender por la lluvia = rain out, wash out.* suspender una acusación = stay + charge.* suspender una sentencia = suspend + sentence.* suspender una sesión = adjourn + session.* suspender un servicio = withdraw + service.* * *1.verbo transitivo1)a) ( suprimir) < pagos> to suspend; <garantía/derecho> to suspend, withdraw; < sesión> to adjourn; < viaje> ( para siempre) to call off; ( temporalmente) to put off; < tratamiento> to stop, suspend; < servicio> to suspend, discontinue; < programa> to cancelb) ( de sus funciones) <empleado/jugador> to suspend; < alumno> (AmL) to suspend2) ( colgar)3) (Esp) <asignatura/examen/alumno> to fail2.suspender vi (Esp) to fail* * *= discontinue, halt, hang, stop, suspend, suspend, adjourn, call + a moratorium on, fail, flunk (out), call off.Ex: Systems like OCLC are going from classical catalogs in the direction of online catalogs, and at least one institution on the OCLC system has discontinued adding cards to its catalog.
Ex: Consequently, a freeze-frame or still-picture effect can be achieved by simply halting the movement of the head across the disc.Ex: The main rule, however, is do not have loose cables hanging all over the place -- not only is it unsightly but also extremely dangerous.Ex: Program function key 1 (FP1) tells DOBIS/LIBIS to stop whatever it is doing and go back to the function selection screen.Ex: The appearance of this volume aroused such a furor within and without the British Museum that further publication of the catalog was suspended.Ex: Do not suspend a book by holding its casing only.Ex: This copyright law was tabled in the Senate in June 79 and the 2nd debate was adjourned to enable public comment.Ex: Let us call a moratorium on writing about the subject and devote our energies to doing comparative work.Ex: These courses give the student who has failed a second chance to make new start.Ex: Participants in the conference on social sciences discussed the possibilities for eliminating punitive aspects of grading systems, such as flunking courses.Ex: The second training run for the marathon was called off because of poor weather conditions.* suspender actividades = cease + activities.* suspender debido a la lluvia = rain out, wash out.* suspender en el aire = hover.* suspender por la lluvia = rain out, wash out.* suspender una acusación = stay + charge.* suspender una sentencia = suspend + sentence.* suspender una sesión = adjourn + session.* suspender un servicio = withdraw + service.* * *suspender [E1 ]vtA1 (suprimir) ‹pagos› to suspend; ‹garantía/derecho› to suspend, withdraw; ‹sesión› to adjourn; ‹viaje› to call, put off; ‹tratamiento› to stop, suspendle han suspendido la medicación they have taken him off the medication, they have stopped o suspended his medicationqueda suspendido el servicio de autobuses hasta nuevo aviso the bus service has been suspended o discontinued until further notice2 (de sus funciones) ‹empleado/jugador› to suspend; ‹alumno› ( AmL) to suspendfueron suspendidos de empleo y sueldo they were suspended without payB (colgar) suspender algo DE algo to hang sth FROM sthquedó suspendido de una rama he was left hanging from a branchla pluma quedó como suspendida en el aire the feather seemed to hang o to be suspended in the airC ( Esp) ‹asignatura/examen› to fail; ‹alumno› to fail■ suspendervi( Esp) to fail* * *
suspender ( conjugate suspender) verbo transitivo
1
‹garantía/derecho› to suspend, withdraw;
‹ sesión› to adjourn;
‹ vuelo› ( cancelar) to cancel;
( aplazar) to postpone;
‹viaje/reunión› ( cancelar) to call off;
( aplazar) to put off;
‹ tratamiento› to stop, suspend;
‹ servicio› to suspend, discontinue;
‹ programa› to cancel
‹ alumno› (AmL) to suspend
2 ( colgar) suspender algo DE algo to hang sth from sth
3 (Esp) ‹asignatura/examen/alumno› to fail
verbo intransitivo (Esp) to fail
suspender
I verbo transitivo
1 (poner en alto, colgar) to hang [de, from]
2 (interrumpir, cancelar) suspendieron el programa, the show was cancelled
(un viaje, un partido) to cancel, call off
(una reunión) to adjourn
(leyes, derechos) to suspend
3 (un examen) to fail: suspendió matemáticas, he failed maths
4 (en un cargo) to suspend
II vi Educ to fail
' suspender' also found in these entries:
Spanish:
colgar
- escabechar
- examen
- miedo
- tumbar
- catear
- liguero
English:
abort
- call off
- cancel
- discontinue
- fail
- flunk
- hang
- refer
- stop
- suspend
- suspender
- suspender belt
- adjourn
- call
- cease
- lay
* * *♦ vt1. [colgar] to hang (up);lo suspendieron de una cuerda/de un clavo they hung it from a rope/nailme suspendieron la historia I failed history3. [interrumpir] to suspend;[reunión, sesión] to adjourn;suspendieron las obras de la central nuclear construction work on the nuclear power plant was suspended;se suspendió el partido a causa de la lluvia the game was called off o postponed because of the rain;se han suspendido los vuelos hasta nueva orden flights have been cancelled until further notice4. [sancionar] [trabajador] to suspend;Am [alumno] to suspend;suspender a alguien de empleo y sueldo to suspend sb without pay♦ viEsp [alumno] to fail* * *I v/t2 objeto hang, suspend3 reunión adjourn4 examen failII v/i EDU fail* * *suspender vt1) colgar: to suspend, to hang2) : to suspend, to discontinue3) : to suspend, to dismiss* * *suspender vb1. (no aprobar) to fail2. (interrumpir) to suspend3. (aplazar) to postpone -
2 tirar
v.1 to throw.tirar algo a algo/alguien to throw something to something/somebody (para que lo agarre) to throw something at something/somebody (para hacer daño)tírame una manzana throw me an appleElla tira bolas She throws balls.2 to drop (dejar caer) (object).3 to knock over (derribar) (botella, lámpara).4 to throw away.tirar algo a la basura to throw something awayeso es tirar el dinero that's a complete waste of money5 to fire (disparar) (bala, misil).tirar una foto to take a picture6 to play (jugar) (carta).7 to take (sport) (falta, penalti).tirar a gol to shoot, to have a shot at goal8 to print.La imprenta tiró la primera edición The printer printed the first edition.9 to fail (informal) (suspender).10 to shoot.tirar a matar to shoot to kill11 to have a pull (informal) (atraer).me tira la vida del campo I feel drawn toward life in the countrytirar de algo to attract something12 to draw (cigarrillo, chimenea).13 to go, to work (informal) (funcionar).14 to go, to head.tira por esa calle go up o take that street15 to (have one's) go.16 to kick (sport) (con el pie).17 to last.18 to knock down, to break down, to batter down.La policía tiró la puerta The police broke down the door.19 to pull.El tractor tira fuerte The tractor pulls hard.* * *1 (echar) to throw, fling2 (dejar caer) to drop3 (desechar) to throw away4 (derribar) to knock down; (casa, árbol) to pull down5 (derramar) to spill6 (vaso, botella) to knock over7 (estirar) to pull8 (imprimir) to print9 (hacer - foto) to take; (línea, plano) to draw12 DEPORTE to take13 figurado (malgastar) to waste, squander1 (cuerda, puerta) to pull (de, -)2 (carreta, carro) to draw (de, -)3 (atraer) to draw, attract4 (estufa, chimenea) to draw5 (en juegos) to be a player's move, be a player's turn6 familiar (funcionar) to work, run8 (quedar estrecho) to be tight on11 figurado (inclinarse) to be attracted (a/hacia, to), be drawn (a/hacia, to)12 figurado (parecerse) to take after (a, -)14 figurado (mantenerse) to get by, get along15 (disparar) to shoot, fire1 (lanzarse) to throw oneself, hurl oneself3 (tumbarse) to lie down5 argot (fornicar) to lay (a, -)\a todo tirar figurado at the most, at the latesttira y afloja figurado give and taketirar al blanco to shoot at a targettirar a alguien de la lengua figurado to draw somebody outtirar de cartera to dip into one's wallettirar la casa por la ventana figurado to spare no expense, push the boat outtirar la primera piedra figurado to cast the first stonetirar una moneda al aire to toss a cointirarse de cabeza al agua to dive into the water* * *verb1) to throw, hurl, toss2) throw away3) shoot, fire4) pull, draw5) attract6) print•- tirar a
- tirar de la cadena
- tirar para* * *Para las expresiones como tirar de la lengua, tirar de la manta, tirar por la borda, tirar por tierra, ver la otra entrada.1. VERBO TRANSITIVO1) (=lanzar) to throwtirar algo a algn — [para que lo coja] to throw sth to sb; [para hacer daño] to throw sth at sb
2) (=derribar) [+ edificio] to pull down; [+ jarrón, silla, estatua] to knock over; [+ pared, verja] to knock downvan a tirar la casa — they are going to demolish {o} pull down the house
¡abre, o tiro la puerta abajo! — open up, or I'll break the door down!
3) (=dejar caer) to drop4) (=desechar) to throw awayno tires las sobras, que se las voy a dar al perro — don't throw away the leftovers, I'll give them to the dog
no tires el aceite por el sumidero — don't tip {o} pour the oil down the drain
estos pantalones están para tirarlos — these trousers have had it, these trousers are about ready for the dustbin
5) (=malgastar) [+ dinero] to waste; [+ fortuna] to squanderhas tirado el dinero comprando eso — it was a waste of money buying that, you wasted your money buying that
6) (=disparar) [+ tiro] to fire; [+ flecha] to shoot; [+ cohete] to launch, fireel aparato tira el proyectil a 2.000m — the machine throws the projectile 2,000m
7) [+ foto] to take8) (=dar, pegar)la mula le tiró una coz — the mule kicked him {o} gave him a kick
¡mamá, Carlos me ha tirado un mordisco! — Carlos has bitten me, Mum!
9) (Tip) (=imprimir) to print, run off10) (=trazar) [+ línea] to draw, trace11) * (=suspender)ya me han vuelto a tirar en química — I've failed chemistry again, I've flunked chemistry again ( esp EEUU) *
12) And (=usar) to use14)• tirarla [de] — † (=dárselas de) to fancy oneself as, pose as
2. VERBO INTRANSITIVO1) [haciendo fuerza]a) (=traer hacia sí) to pull¡tira un poco más fuerte! — pull a bit harder!
•
tirar [de] — [+ soga, cuerda] to pull¡no le tires de la trenza a tu hermana! — don't pull your sister's pigtail!
tirar de la cadena (del wáter) — to flush the toilet, pull the chain
b) (=llevar tras sí)•
tirar [de] — to pullun burro tiraba de la carreta — a donkey was pulling the cart along, the cart was drawn by a donkey
2) * (=atraer)no le tira el estudio — studying does not appeal to him, studying holds no attraction for him
3) (=estar tirante) [ropa] to be tight4) (=usar)•
tirar [de] — [+ espada, navaja] to drawtiramos de diccionario y lo traducimos en un minuto — * if we use a dictionary it will just take a minute to translate
5) (=disparar) to shoot¡no tires! — don't shoot!
•
tirar al [blanco] — to aim•
tirar a [matar] — to shoot to kill6) (Dep) [con balón] to shoot; [con fichas, cartas etc] to go, play¡tira! — shoot!
•
tirar a [puerta] — Esp to shoot at goal7) * (=arreglárselas) to get byir tirando — to get by, manage
-¿qué tal esa salud? -vamos tirando — "how's your health?" - "we're getting by"
8) (=funcionar) [motor] to pull; [chimenea, puro] to draw, pull9) (=ir) to go¡tira de una vez! — get on with it!, go on, then!
tirar por una calle — to turn down a street, go off along a street
10) * (=durar) to last11) [seguido de preposición]tirar a (=tender)tirar para (=aspirar a ser)es mediocre tirando a malo — it's middling to bad, it's mediocre verging on bad
12)nos queda gasolina para 20km a todo tirar — we have only enough petrol for 20kms at the most {o} at the outside
13) LAm *** [sexualmente] to screw ***3.See:* * *1.verbo transitivo1)a) ( arrojar) to throwno tires los papeles al suelo — don't throw o drop the wrappers on the ground
tirarle algo a alguien — ( para que lo agarre) to throw somebody something; ( con agresividad) to throw something at somebody
b) (desechar, deshacerse de) to throw out o awayc) ( desperdiciar) to waste2)a) ( hacer caer) to knock overcuidado, que vas a tirar la leche! — be careful, you're going to knock the milk over!
tiró el jarrón al suelo de un codazo — he knocked the vase off the table (o shelf etc) with his elbow
b) ( derribar) to knock down3)a) < bomba> to drop; < cohete> to fire, launch; < flecha> to shoot; < tiros> to fireb) < foto> to take4) (AmL) ( atrayendo hacia sí) to pull5) (Impr) to print, run off6) (Mat) < línea> to draw2.tirar vi1) ( atrayendo hacia sí) to pull2) ( atraer)3)a) ( disparar) to shootb) (Dep) to shoottirar al arco (AmL) or (Esp) a puerta — to shoot at goal
tirando por lo bajo/alto — at the (very) least/most
c) (Jueg) ( descartarse) to throw away; ( en juegos de dados) to throw; ( en dardos) to throw; ( en bolos) to bowl4)a) chimenea/cigarro to drawb) coche/motor to pull5)a) (fam) ( arreglárselas) to get bycon $100 podemos tirar — with $100 we could get by
b) tirando gerundio (fam)¿qué tal andas? - tirando... — how are things? - not too bad
6) (Esp fam) ( desplazarse)vamos, tira — get a move on
tira por esta calle abajo — go o turn down this street
7) (AmL vulg) ( en sentido sexual) to screw (vulg), to fuck (vulg)3.es de estatura normal, tirando a bajito — he's average to short in height
tirarse v pron1)a) (lanzarse, arrojarse) (+ compl) to throw oneselftirarse en paracaídas — to parachute; ( en emergencia) to bale out
tirarse al agua — to dive/jump into the water
tirarse de cabeza — to dive in, to jump in headfirst
b) (AmL) ( tumbarse) to lie downtirárselas de algo — (AmL fam)
2) (fam) <horas/días> to spend3) (vulg) ( en sentido sexual)tirarse a alguien — to screw somebody (vulg), to lay somebody (sl)
4) (fam) ( expulsar)tirarse un pedo — to fart (sl)
tirarse un eructo — to burp (colloq)
5) (Col fam) ( echar a perder) to ruinse tiró el examen — he flunked the exam (colloq)
* * *= dump, haul, run off, throw, throw out, throw away, tear down, toss out, fling, toss, pull down, knock down, jettison, pitch, turf out, toss away, hurl, chuck + Nombre + out.Ex. The books may simply be laid before the librarian as they are found, ' dumped in his lap', as one writer puts it.Ex. However, he would prefer a binding that will stand up to being stuffed into after-hours book drops and being hauled from one library to another.Ex. Not only are they the same work, they were run off from the same plates.Ex. The point to be made for the novice abstractor is that editors are not ghouls who must be thrown raw meat before a check is issued.Ex. The person who never throws away a newspaper is regarded as an eccentric; the person who never throws away a book is more likely to be regarded as a bibliophile no matter what the resulting motley assortment of books may be.Ex. A group opposing the incumbent alderman decided that the board's feasibility study amounted to a covert plan to tear down the house that served as the library and erect an ugly building.Ex. In preparation for computerization, let us not toss out old standards that were good.Ex. A gust of wind flung a powder of snow from the window-sill into the room.Ex. Everything being online, the exquisite oaken cabinets housing the card files were tossed.Ex. Evacuation of the building was followed by a recovery process which included covering stacks with plastic, locating damaged books, pulling down water-soaked ceiling tiles and removing computer terminals.Ex. Your note attempts to knock down an assertion not made.Ex. The whole usually has more meaning than the sum of its parts, but care must be taken not to jettison some of the more subtle parts.Ex. They pitched him unceremoniously out of the window, laming him for life, on a brick pavement below.Ex. You will be disliked and turfed out as a sacrificial goat once your job is done but there will be many others queuing up for your services.Ex. Palestinians hurled Molotov cocktails Friday at Israeli soldiers operating south of Nablus, the army said.Ex. Now to start chucking out stuff that I don't need; being a bit of a magpie, that might be difficult!.----* cuchillo de usar y tirar = disposable knife.* de tirar la piedra y esconder la mano = hit-and-run.* de usar y tirar = disposable, throwaway, single-use.* introducir tirando = haul in.* ir tirando = shuffle along, tick over, muddle along, keep + the wolves from the door.* persona que tira basura al suelo = litterbug, litter lout.* plato de usar y tirar = disposable plate.* sacar tirando = haul out.* seguir tirando el dinero = throw + good money after bad.* servilleta de usar y tirar = disposable napkin.* tenedor de usar y tirar = disposable fork.* tirando a bajo = shortish.* tirando a corto = shortish.* tirando a marrón = brownish.* tirando a morado = purplish.* tirar a Alguien al suelo = knock + Nombre + to the ground, knock + Nombre + to the floor.* tirar a Alguien al suelo de un golpe = knock + Nombre + to the floor, knock + Nombre + to the ground.* tirar a lo bajo = low-ball.* tirar al suelo = upset.* tirar a matar = go for + the jugular, deadly force, shoot to + kill.* tirar bombas = bomb.* tirar de = pull (at/on/from), tug, pull back, lug, leverage.* tirar de la cadena = flush + the toilet.* tirar de la cisterna = flush + the toilet.* tirar de la manta = let + the cat out of the bag, blow + the gaff, spill + the beans.* tirar de las orejas = tell + Nombe + off.* tirar del carro = pull + Posesivo + (own) weight, pull together, lend + a (helping) hand, put + Posesivo + shoulder to the wheel, set + Posesivo + shoulder to the wheel, muck in, pitch in.* tirar de una manivela = pull + lever.* tirar de una palanca = depress + lever.* tirar dinero y esfuerzo por la borda = be money and effort down the drain.* tirar el dinero = throw + Posesivo + money down the drain.* tirar el dinero por la ventana = be money and effort down the drain, throw + Posesivo + money down the drain, be money down the drain.* tirar la casa por la ventana = lash out (on), go to + town on.* tirar la esponja = throw in/up + the sponge.* tirar la toalla = throw in + the towel.* tirar ligeramente de = tug on.* tirar los tejos = flirt, throw + hints.* tirar piedras contra tu propio tejado = cut + the branch + you sit on, cut + the branch + you sit on, cut off + Posesivo + nose to spite + Posesivo + face.* tirar por el desagüe = pour down + the drain.* tirarse a la calle = go out on + the road.* tirarse a la jugular = go for + the jugular.* tirarse a la piscina = take + a dive.* tirarse a las calles = spill (out) into + the streets.* tirarse con ala delta = hang-glide.* tirarse de cabeza = jump in + head first, dive in, dive + head-first.* tirarse de las barbas = tear + Posesivo + hair out.* tirarse de los pelos = tear + Posesivo + hair out.* tirarse en paracaídas = parachute.* tirarse flores = blow + Posesivo + own trumpet.* tirarse piedras contra el propio tejado = shoot + Reflexivo + in the foot.* tirarse una plancha = put + Posesivo + foot in it, put + Posesivo + foot in + Posesivo + mouth, stick + Posesivo + foot in it, drop + a clanger, drop + a bollock, make + a blunder, make + a bloomer, blunder.* tirarse un eructo = belch, burp.* tirarse un farol = bullshit.* tirarse un pedo = fart, trump, break + wind, trumpet.* * *1.verbo transitivo1)a) ( arrojar) to throwno tires los papeles al suelo — don't throw o drop the wrappers on the ground
tirarle algo a alguien — ( para que lo agarre) to throw somebody something; ( con agresividad) to throw something at somebody
b) (desechar, deshacerse de) to throw out o awayc) ( desperdiciar) to waste2)a) ( hacer caer) to knock overcuidado, que vas a tirar la leche! — be careful, you're going to knock the milk over!
tiró el jarrón al suelo de un codazo — he knocked the vase off the table (o shelf etc) with his elbow
b) ( derribar) to knock down3)a) < bomba> to drop; < cohete> to fire, launch; < flecha> to shoot; < tiros> to fireb) < foto> to take4) (AmL) ( atrayendo hacia sí) to pull5) (Impr) to print, run off6) (Mat) < línea> to draw2.tirar vi1) ( atrayendo hacia sí) to pull2) ( atraer)3)a) ( disparar) to shootb) (Dep) to shoottirar al arco (AmL) or (Esp) a puerta — to shoot at goal
tirando por lo bajo/alto — at the (very) least/most
c) (Jueg) ( descartarse) to throw away; ( en juegos de dados) to throw; ( en dardos) to throw; ( en bolos) to bowl4)a) chimenea/cigarro to drawb) coche/motor to pull5)a) (fam) ( arreglárselas) to get bycon $100 podemos tirar — with $100 we could get by
b) tirando gerundio (fam)¿qué tal andas? - tirando... — how are things? - not too bad
6) (Esp fam) ( desplazarse)vamos, tira — get a move on
tira por esta calle abajo — go o turn down this street
7) (AmL vulg) ( en sentido sexual) to screw (vulg), to fuck (vulg)3.es de estatura normal, tirando a bajito — he's average to short in height
tirarse v pron1)a) (lanzarse, arrojarse) (+ compl) to throw oneselftirarse en paracaídas — to parachute; ( en emergencia) to bale out
tirarse al agua — to dive/jump into the water
tirarse de cabeza — to dive in, to jump in headfirst
b) (AmL) ( tumbarse) to lie downtirárselas de algo — (AmL fam)
2) (fam) <horas/días> to spend3) (vulg) ( en sentido sexual)tirarse a alguien — to screw somebody (vulg), to lay somebody (sl)
4) (fam) ( expulsar)tirarse un pedo — to fart (sl)
tirarse un eructo — to burp (colloq)
5) (Col fam) ( echar a perder) to ruinse tiró el examen — he flunked the exam (colloq)
* * *tirar(de)(v.) = pull (at/on/from), tug, pull back, lug, leverageEx: Do not push or pull on the disc drawer.
Ex: Do not pull a book from the shelf by forcefully tugging the top of the spine.Ex: The three monkeys used in this study chose the left arm as the leading arm to reach out and pull back a spring-loaded drawer containing a food morsel.Ex: He had a tough time lugging his lumpy, oversized travelbag onto the plane and stuffing it in the overhead bin.Ex: Information seeking in electronic environments will become a collaboration among end user and various electronic systems such that users leverage their heuristic power and machines leverage algorithmic power.= dump, haul, run off, throw, throw out, throw away, tear down, toss out, fling, toss, pull down, knock down, jettison, pitch, turf out, toss away, hurl, chuck + Nombre + out.Ex: The books may simply be laid before the librarian as they are found, ' dumped in his lap', as one writer puts it.
Ex: However, he would prefer a binding that will stand up to being stuffed into after-hours book drops and being hauled from one library to another.Ex: Not only are they the same work, they were run off from the same plates.Ex: The point to be made for the novice abstractor is that editors are not ghouls who must be thrown raw meat before a check is issued.Ex: The person who never throws away a newspaper is regarded as an eccentric; the person who never throws away a book is more likely to be regarded as a bibliophile no matter what the resulting motley assortment of books may be.Ex: A group opposing the incumbent alderman decided that the board's feasibility study amounted to a covert plan to tear down the house that served as the library and erect an ugly building.Ex: In preparation for computerization, let us not toss out old standards that were good.Ex: A gust of wind flung a powder of snow from the window-sill into the room.Ex: Everything being online, the exquisite oaken cabinets housing the card files were tossed.Ex: Evacuation of the building was followed by a recovery process which included covering stacks with plastic, locating damaged books, pulling down water-soaked ceiling tiles and removing computer terminals.Ex: Your note attempts to knock down an assertion not made.Ex: The whole usually has more meaning than the sum of its parts, but care must be taken not to jettison some of the more subtle parts.Ex: They pitched him unceremoniously out of the window, laming him for life, on a brick pavement below.Ex: You will be disliked and turfed out as a sacrificial goat once your job is done but there will be many others queuing up for your services.Ex: Palestinians hurled Molotov cocktails Friday at Israeli soldiers operating south of Nablus, the army said.Ex: Now to start chucking out stuff that I don't need; being a bit of a magpie, that might be difficult!.* cuchillo de usar y tirar = disposable knife.* de tirar la piedra y esconder la mano = hit-and-run.* de usar y tirar = disposable, throwaway, single-use.* introducir tirando = haul in.* ir tirando = shuffle along, tick over, muddle along, keep + the wolves from the door.* persona que tira basura al suelo = litterbug, litter lout.* plato de usar y tirar = disposable plate.* sacar tirando = haul out.* seguir tirando el dinero = throw + good money after bad.* servilleta de usar y tirar = disposable napkin.* tenedor de usar y tirar = disposable fork.* tirando a bajo = shortish.* tirando a corto = shortish.* tirando a marrón = brownish.* tirando a morado = purplish.* tirar a Alguien al suelo = knock + Nombre + to the ground, knock + Nombre + to the floor.* tirar a Alguien al suelo de un golpe = knock + Nombre + to the floor, knock + Nombre + to the ground.* tirar a lo bajo = low-ball.* tirar al suelo = upset.* tirar a matar = go for + the jugular, deadly force, shoot to + kill.* tirar bombas = bomb.* tirar de = pull (at/on/from), tug, pull back, lug, leverage.* tirar de la cadena = flush + the toilet.* tirar de la cisterna = flush + the toilet.* tirar de la manta = let + the cat out of the bag, blow + the gaff, spill + the beans.* tirar de las orejas = tell + Nombe + off.* tirar del carro = pull + Posesivo + (own) weight, pull together, lend + a (helping) hand, put + Posesivo + shoulder to the wheel, set + Posesivo + shoulder to the wheel, muck in, pitch in.* tirar de una manivela = pull + lever.* tirar de una palanca = depress + lever.* tirar dinero y esfuerzo por la borda = be money and effort down the drain.* tirar el dinero = throw + Posesivo + money down the drain.* tirar el dinero por la ventana = be money and effort down the drain, throw + Posesivo + money down the drain, be money down the drain.* tirar la casa por la ventana = lash out (on), go to + town on.* tirar la esponja = throw in/up + the sponge.* tirar la toalla = throw in + the towel.* tirar ligeramente de = tug on.* tirar los tejos = flirt, throw + hints.* tirar piedras contra tu propio tejado = cut + the branch + you sit on, cut + the branch + you sit on, cut off + Posesivo + nose to spite + Posesivo + face.* tirar por el desagüe = pour down + the drain.* tirarse a la calle = go out on + the road.* tirarse a la jugular = go for + the jugular.* tirarse a la piscina = take + a dive.* tirarse a las calles = spill (out) into + the streets.* tirarse con ala delta = hang-glide.* tirarse de cabeza = jump in + head first, dive in, dive + head-first.* tirarse de las barbas = tear + Posesivo + hair out.* tirarse de los pelos = tear + Posesivo + hair out.* tirarse en paracaídas = parachute.* tirarse flores = blow + Posesivo + own trumpet.* tirarse piedras contra el propio tejado = shoot + Reflexivo + in the foot.* tirarse una plancha = put + Posesivo + foot in it, put + Posesivo + foot in + Posesivo + mouth, stick + Posesivo + foot in it, drop + a clanger, drop + a bollock, make + a blunder, make + a bloomer, blunder.* tirarse un eructo = belch, burp.* tirarse un farol = bullshit.* tirarse un pedo = fart, trump, break + wind, trumpet.* * *tirar [A1 ]vtA1 (lanzar, arrojar) to throw¿quiénes estaban tirando piedras? who was throwing stones?tiró la colilla por la ventanilla she threw the cigarette butt out of the windowtiró la pelota al aire he threw the ball up in the airtiraban piedrecitas al río they were throwing stones into the riverno tires los papeles al suelo don't throw o drop the wrappers on the groundtirarle algo A algn (para que lo agarre) to throw sth TO sb, to throw sb sth; (con agresividad) to throw sth AT sble tiró la pelota she threw him the ball, she threw the ball to himtírame las llaves throw me the keysme tiró una piedra she threw a stone at mele tiraron un cubo de agua they threw a bucket of water over himle tiró los brazos he put o stretched his arms out to hertírale un beso blow him a kiss2 (desechar, deshacerse de) to throw out o awaytodo esto es para tirar all this can be thrown out o away, this is all going out ( colloq)estos zapatos ya están para tirar(los) these shoes are about ready to be thrown away o out¡que asco! tira eso inmediatemente a la basura ugh! throw that away right now!, ugh! put that in the garbage can ( AmE) o ( BrE) the bin right now!3 (desperdiciar) to waste¡qué manera de tirar el dinero! what a waste of money!B (dejar en desorden) (+ compl):no tiren los juguetes por todos lados don't leave o strew your toys all over the placese quitó la camisa y la tiró en un rincón he took off his shirt and threw it into a cornerC1 (hacer caer) to knock over¡cuidado, que vas a tirar la leche! be careful, you're going to knock the milk over!tiró el jarrón al suelo de un codazo he knocked the vase off the table ( o shelf etc) with his elbow2 (derribar) to knock downel perro se le echó encima y lo tiró al suelo the dog leaped up at him and knocked him to the ground o knocked him overtiró todos los bolos de una vez he knocked all the pins down in one govan a tirar (abajo) esta pared or van a tirar esta pared (abajo) they're going to knock this wall downtiraron la puerta abajo they broke the door downD1 ‹bomba› to drop; ‹cohete› to fire, launch; ‹flecha› to shoot; ‹tiros› to firele tiraron tres tiros they shot at him three times, they fired three shots at him2 ‹foto› to takeE (dar) ‹puñetazo› to throwtiraba puñetazos a diestra y siniestra he was throwing punches o lashing out left and right ( AmE) o ( BrE) left, right and centerel perro me tiró un mordisco the dog snapped at meno me tires más pellizcos stop pinching meF ( AmL) (atrayendo hacia sí) to pulltiró la cadena he pulled the chainno le tires el pelo don't pull his hairte voy a tirar las orejas I'm going to tweak your earsle tiraba la manga she was tugging o pulling at his sleeveG ( Impr) to print, run offH ( Mat) ‹línea› to drawI ( Chi)1 ‹carrera› to start, give the starting signal for2 ‹lotería› to draw the winning number in; ‹rifa› to draw■ tirarviA1 (atrayendo hacia sí) to pull¡vamos, tiren todos a una! come on, everybody pull together![ S ] tirar pulltirar DE algo to pull sthno le tires del pelo don't pull her hairdos caballos tiraban del carro the cart was drawn by two horsestirar de la cadena to pull the chainle tiró de la manga she tugged o pulled at his sleevele tiró de la oreja she tweaked his ear2 «vestido/blusa» to be (too) tightme tira it's too tight on meB(atraer): le sigue tirando México she still hankers after o misses Mexicono parece que le tiren mucho los deportes he doesn't seem to be very interested in o keen on sportla sangre tira blood is thicker than waterC1(disparar): le tiró a traición she shot him in the back¡no tiren! don't shoot!le tiró al corazón he shot him through the hearttirar a dar to shoot to wound ( not to kill)tirar a matar (literal) to shoot to kill(para ofender, atacar): cuando empieza a criticar, tira a matar when she starts criticizing you, she really goes for the jugular o she really sticks the knife in ( colloq)siempre que me dice algo, tira a matar whenever he says anything to me, he goes all out to hurt me2 ( Dep) to shoottirando por lo bajo/alto at the (very) least/most3 ( Jueg) (descartarse) to throw away, discard; (en juegos de dados) to throw; (en dardos) to throw; (en bolos) to bowlD1 «chimenea/cigarro» to draw2 «coche/motor» to pullE1 ( fam) (llegar, sobrevivir) to get bycon $100 podríamos tirar hasta fin de mes with $100 we could get by until the end of the monthcon este uniforme podrás tirar hasta fin de año this uniform will last you o ( colloq) will do you till the end of the year2 tirandoger ( fam): ¿qué tal andas? — ya lo ves, tirando … how are things? — well, you know, not too bad o we're getting byno ganamos mucho pero vamos tirando we don't earn much but we're managingFvamos, tira come on, get moving o get a move onsi tiras para atrás cabe otro coche if you back up o go back a bit we can get another car intira (p'alante), no te pares ahora keep going, don't stop nowhay mucho que hacer pero entre todos podemos tirar p'alante there's a lot to be done but if we all pull together we can get through ittira por esta calle abajo go o turn down this streeten cuanto nos vieron, tiraron por otro lado as soon as they saw us they went off in a different direction/they turned off up a different streetH tirar ano es verde, tira más bien a azul it's not green, it's more of a bluish colorlos precios son más bien tirando a caros the prices are a bit on the expensive o ( colloq) steep sideel erotismo de la película tiraba a pornográfico the eroticism in the film tended toward(s) o verged on the pornographiclos niños tiran más a la madre the children take after their mother morees de estatura normal, tirando a bajito he's average to short in height■ tirarseA1 (lanzarse, arrojarse) (+ compl) to throw oneselfse tiró por la ventana he threw himself o he leapt out of the windowtirarse en paracaídas to parachutetirarse al agua to dive/jump into the watertirarse del trampolín to dive off the springboardtirarse de cabeza to dive in, to jump in headfirstintentó tirarse del tren en marcha she tried to throw herself from o to jump off the train while it was movingse le tiró a los brazos she threw herself into his arms2 «coche/conductor» (+ compl) to pull overse tiró bruscamente a un lado he swerved to one side3 ( AmL) (tumbarse) to lie downestoy agotada, me voy a tirar un rato I'm exhausted, I'm going to lie down for a whileB ( fam); ‹horas/días› to spendnos hemos tirado media hora para encontrar la casa it's taken us half an hour to find the housese tiró dos años escribiéndolo he spent two years writing itse ha tirado una hora entera hablando por teléfono he's been on the phone for a whole hour, he's spent a whole hour on the phoneC ( vulg)D ( fam)tirarse un eructo to belch, to burp ( colloq)el aguacero se tiró el paseo the downpour washed out o ruined our walkse tiró el examen he flunked the exam ( colloq)* * *
tirar ( conjugate tirar) verbo transitivo
1
tirarle algo a algn ( para que lo agarre) to throw sb sth;
( con agresividad) to throw sth at sb
◊ ¡qué manera de tirar el dinero! what a waste of money!
2
3
‹ cohete› to fire, launch;
‹ flecha› to shoot
4 (AmL) ( atrayendo hacia sí) to pull;
verbo intransitivo
1 ( atrayendo hacia sí) to pull;
tirar de algo to pull sth;
2
b) (Dep) to shoot;
tirar al arco (AmL) or (Esp) a puerta to shoot at goal
( en juegos de dados) to throw;
( en dardos) to throw;
( en bolos) to bowl
3
4◊ tirando ger (fam): gano poco pero vamos tirando I don't earn much but we're managing;
¿qué tal andas? — tirando how are things? — not too bad
5
ella tira más a la madre she takes after her mother more
tirarse verbo pronominal
1
tirarse en paracaídas to parachute;
( en emergencia) to bale out;
tirarse de cabeza to dive in, to jump in headfirst
2 (fam) ‹horas/días› to spend;
3 (fam) ( expulsar):◊ tirarse un pedo to fart (sl)
tirar
I verbo transitivo
1 (arrojar, echar) to throw: lo tiró al agua, he threw it into the water
no tires la cáscara al suelo, don't throw o drop the peel on the floor
(enérgicamente) to fling, hurl: lo tiró al fuego, she threw it on the fire
2 (deshacerse de) to throw out o away
tiré mis zapatos viejos, I threw my old shoes away
3 (malgastar) tiraste el dinero con esa joya falsa, you've wasted your money on that fake jewel
(despilfarrar) to squander
4 (hacer caer) to knock over: tiré el vaso, I knocked the glass over
5 (derribar a alguien) to knock o push over
tirar abajo (una pared, una puerta) to knock down
(demoler) to pull down
6 (una bomba) to drop
(un tiro, un cohete) to fire
7 (una foto) to take
8 Impr to print
II verbo intransitivo
1 (hacer fuerza hacia sí) to pull: no le tires del pelo, don't pull his hair
¡tira de la cuerda!, tug on the rope!
2 (disparar) to shoot
Dep to shoot
(dados, dardos) to throw
3 fam (gustar) le tira mucho el baloncesto, he's very keen on basketball
4 (tender) tira a azul, it's bluish
(parecerse) tira a su madre, she takes after her mother
5 fam (arreglárselas) ir tirando, to get by, manage
6 (ir) tira a la derecha, turn right
' tirar' also found in these entries:
Spanish:
aire
- bala
- borda
- calle
- casa
- esconder
- palanca
- toalla
- trapo
- apedrear
- arrojar
- basura
- blanco
- botar
- cadena
- crimen
- echar
- jalar
- pinta
- zumbar
English:
aim at
- archery
- bung
- cast
- chain
- chuck
- chuck away
- chuck out
- clearout
- dash
- drag
- draw
- fling
- flush
- haul
- heave
- keep
- knock off
- knock over
- lash out
- pitch
- pull
- pull on
- pull over
- putt
- run off
- shoot
- sling
- sling out
- splash out
- sponge
- strain
- throw
- throw aside
- throw away
- throw out
- toss
- toss away
- towel
- town
- trash
- tug
- turf out
- waste
- yank
- beat
- blow
- bring
- disposable
- ditch
* * *♦ vt1. [lanzar] to throw;tiraron las gorras al aire they threw their caps (up) in the air;tirar algo a alguien [para que lo agarre] to throw sth to sb;[para hacer daño] to throw sth at sb;tírame una manzana throw me an apple;le tiró un beso she blew him a kiss;le tiraban piedras a la policía they were throwing stones at the police2. [dejar caer] [objeto] to drop;[líquido] [derramar] to spill;no tiren los papeles al suelo don't throw o drop the wrappers on the ground;tiró las maletas y se tumbó en la cama she dropped her suitcases and lay down on the bed;me has tirado salsa en el traje you've spilt some sauce on my suit3. [derribar] [botella, lámpara] to knock over;[muro, tabique, edificio] to knock down;tiró la lámpara con un codo al pasar she knocked over the lamp with her elbow as she went by;la violencia del choque la tiró al suelo the force of the collision knocked o hurled her to the floor;esta pared habrá que tirarla we're going to have to knock this wall down4. [desechar] to throw away o out;tirar algo a la basura to throw sth out;tíralo a la papelera throw it in the wastepaper basket;eso es tirar el dinero that's a complete waste of money6. [disparar] [balas, misiles, disparos] to fire;[bomba] to drop; [petardo, cohete] to let off; [dardos, flechas] to shoot; Famtirar una foto to take a picture7. [jugar] [carta] to play;[dado] to throw8. [en deportes] [falta, penalti] to take;[balón] to pass9. [imprimir] to print10. [trazar] [línea] to draw♦ vi1. [disparar] to shoot;tirar al aire to fire shots into the air;tirar a dar to shoot to wound, not to kill;tirar a matar [con arma] to shoot to kill;[con comentario] to go for the jugularel ciclista colombiano tiraba del pelotón the Colombian cyclist was pulling the bunch along;me tiró del pelo she pulled my hair;[en letrero] pull;me tiró del brazo/de la manga she tugged at my arm/sleeve;RPtirar parejo: esto no es justo, o tiramos parejo o yo me retiro this is not fair, either we all pull together or I'm dropping out3. [estar tirante] to be tight;la chaqueta me tira de atrás the jacket's a bit tight at the back4. [en deportes] [con el pie] to kick;[con la mano] to throw; [a meta, canasta] to shoot;5. [dirigirse] to go ( hacia o para towards), to head ( hacia o para for o towards); FamFam¡tira! [para empezar a moverse] get moving!;¡tira que llegamos tarde! let's get a move on or we'll be late!;tiramos hacia la izquierda we turned left;Famtira para arriba, que ahora subo yo you go on up, I'll come up in a minute;tira por esa calle go up o take that street6. [jugar] to go, to have one's go;te toca tirar a ti [en naipes, dados, billar] it's your go7. [cigarrillo, chimenea] to draw;este tabaco no tira these cigarettes aren't drawing properlyel motor no tira the engine isn't working properly;el coche tira bien the car runs well9. [durar] to last;estos zapatos tirarán otro año these shoes will last another yearla tierra siempre tira de uno your homeland never loses its pull on you;tirarle a alguien: me tira la vida del campo country life appeals to me;no le tira la profesión de su padre his father's profession doesn't appeal to him;no le tira viajar she doesn't feel the urge to travel;tirar de alguien to exert a pull on sb11. Fam [apañárselas]aún puedo tirar con este abrigo un par de inviernos this coat should do me for another couple of winters yet;ir tirando to get by;voy tirando I'm OK, I've been worse12. [tener aspecto de o tendencia a]tirar a: tira a gris it's greyish;tira a su abuela she takes after her grandmother;este programa tira a (ser) hortera this programme is a bit on the tacky side;el tiempo tira a mejorar the weather looks as if it's getting better;es un reformista tirando a radical he's somewhere between a reformist and a radical;es verde tirando a azul it's a bluey green;es tirando a delgado if anything, he's rather thin;tira para deportista he has the makings of a sportsmancuando no hay dinero hay que tirar del ingenio when you don't have any money, you have to rely on your wits;hubo que tirar de los ahorros we had to draw on our savings* * *I v/t3 TIP print4 famen examen fail5 foto take6 tiro fireII v/i1 de coche pull;tirar de algo pull sth2 ( disparar) shoot:tirar a puerta shoot at goal;tirar fuera shoot wide4 ( atraer) pull, attract;no me tira la música music doesn’t turn me on5:tirar a tend toward;tirar a conservador/verde have conservative/Green tendencies6 ( girar):tirar a la derecha turn right, take a right7:ir tirando fam get by, manage* * *tirar vt1) : to throw, to hurl, to toss2) botar: to throw away, to throw out, to waste3) derribar: to knock down4) : to shoot, to fire, to launch5) : to take (a photo)6) : to print, to run offtirar vi1) : to pull, to draw2) : to shoot3) : to attract4) : to get by, to manageva tirando: he's getting along, he's managing5)tirar a : to tend towards, to be rathertira a picante: it's a bit spicy* * *tirar vb3. (derribar) to knock over / to knock down4. (malgastar) to waste5. (arrastrar, estirar) to pull7. (atraer, gustar) to like -
3 он провалился по химии
Makarov: he failed chemistryУниверсальный русско-английский словарь > он провалился по химии
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4 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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5 неисправный
1) General subject: broken, careless, conked out, conked-out, crank, cranky, defective, faulty, ill-conditioned, improper, inaccurate, incorrect, off colour, out of order, out of service, out-of-service, unpunctual, wrong, out of repair, affected2) Aviation: out-of-use3) American: blooey4) Military: dead, demmick, ineffective5) Engineering: damaged, nonserviceable, unhealthy6) Chemistry: inoperable, inoperative7) Economy: out order of8) Automobile industry: in bad repair, off-colour9) Mining: disturbed10) Telecommunications: out-of-repair11) Physics: unworkable12) Jargon: kaput, no go, no-go, out of whack13) Information technology: bad, invalid, out-of-order14) Oil: F (failed), US (unserviceable), defect, disabled, failed, failing, in bad order, out-of-action, out-of-commission, out-of-operation, unserviceable15) Astronautics: malfunctioning16) Mechanics: out-of-run, out-of-work17) Business: out of operation, out of shop18) Automation: offending19) Quality control: cranky (о механизме), diseased, down, faulted20) General subject: abnormal21) Makarov: inactive, out-of-joint22) Cement: non-serviceable -
6 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 -
7 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 -
8 rajada
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9 eksperymen|t
m (Geksperymentu) 1. (doświadczenie) experiment C/U (na kimś/czymś on sb/sth)- eksperyment naukowy/chemiczny a scientific/chemistry experiment- eksperyment z fizyki a physics experiment- eksperymenty na zwierzętach animal experiments, animal experimentation- przeprowadzać eksperyment a. dokonywać eksperymentu to carry out a. perform an experiment- przeprowadzone eksperymenty potwierdziły naszą wstępną hipotezę the experiments confirmed a. verified our original hypothesis2. (próba) experiment, trial- eksperyment literacki/wychowawczy an experiment in literature/education- tytułem eksperymentu można ten program wprowadzić w kilku szkołach the programme may be introduced in some schools on a trial basis- eksperyment z nowym systemem obliczania się nie udał the experiment with a new calculating system has failedThe New English-Polish, Polish-English Kościuszko foundation dictionary > eksperymen|t
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10 A level
[ˈeɪ ˌlevəl] noun(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:مُسْتَوى مُتَقَدِّمWhat subjects are you taking at A level?
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11 Abel, John Jacob
SUBJECT AREA: Medical technology[br]b. 19 May 1857 near Cleveland, Ohio, USAd. 26 May 1938 Baltimore, Maryland, USA[br]American pharmacologist and physiologist, proponent of the "artificial kidney" and the isolator of pure insulin.[br]Born of German immigrant farming stock, his early scientific education at the University of Michigan, where he graduated PhB in 1883, suffered from a financially dictated interregnum of three years. In 1884 he moved to Leipzig and worked under Ludwig, moving to Strasbourg where he obtained his MD in 1888. In 1891 he was able to return to the University of Michigan as Lecturer in Materia Medica and Therapeutics, and in 1893 he was offered the first Chair of Pharmacology at Johns Hopkins University, a position he occupied until 1932. He was a pioneer in emphasizing the importance of chemistry, in its widest sense, in medicine and physiology. In his view, "the investigator must associate himself with those who have laboured in fields where molecules and atoms rather than multi-cellular tissues or even unicellular organisms are the units of study".Soon after coming to Baltimore he commenced work on extracts from the adrenal medulla and in 1899 published his work on epinephrine. In later years he developed an "artificial kidney" which could be used to remove diffusible substances from the blood. In 1913 he was able to demonstrate the existence of free amino-acids in the blood and his investigations in this field foreshadowed not only the developments of blood and plasma transfusion but also the possibility of the management of renal failure.From 1917 to 1924 he moved to a study of the hormone content of pituitary extracts, but in 1924 he suddenly transferred his attention to the study of insulin. In 1925 he announced the discovery of pure crystalline hormone. This work at first failed to gain full acceptance, but as late as 1955 the full elucidation of the protein structure of insulin proved the final culmination of his studies.Abel's dedication to laboratory research and his disdain for matters of administration may explain the relative paucity of worldy honours awarded to such an outstanding figure.[br]Principal Honours and DistinctionsFRS.Bibliography1913, "On the removal of diffusible substances from the circulating blood by means of dialysis", Transactions of the Association of American Physiologists.Further Reading1939, Obituary Notices, Fellows of the Royal Society, London: Royal Society.1946, Biographical Memoir: John Jacob Abel. 1857–1938, Washington, DC: National Academy of Sciences.MG -
12 Bergius, Friedrich Carl Rudolf
[br]b. 11 October 1884 Goldschmieden, near Breslau, Germanyd. 31 March Buenos Aires, Argentina[br][br]After studying chemistry in Breslau and Leipzig and assisting inter alia at the institute of Fritz Haber in Karlsruhe on the catalysis of ammonia under high pressure, in 1909 he went to Hannover to pursue his idea of turning coal into liquid hydrocarbon under high hydrogen pressure (200 atm) and high temperatures (470° C). As experiments with high pressure in chemical processes were still in their initial stages and the Technical University could not support him sufficiently, he set up a private laboratory to develop the methods and to construct the equipment himself. Four years later, in 1913, his process for producing liquid or organic compounds from coal was patented.The economic aspects of this process were apparent as the demand for fuels and lubricants increased more rapidly than the production of oil, and Bergius's process became even more important after the outbreak of the First World War. The Th. Goldschmidt company of Essen contracted him and tried large-scale production near Mannheim in 1914, but production failed because of the lack of capital and experience to operate with high pressure on an industrial level. Both capital and experience were provided jointly by the BASF company, which produced ammonia at Merseburg, and IG Farben, which took over the Bergius process in 1925, the same year that the synthesis of hydrocarbon had been developed by Fischer-Tropsch. Two years later, at the Leuna works, almost 100,000 tonnes of oil were produced from coal; during the following years, several more hydrogenation plants were to follow, especially in the eastern parts of Germany as well as in the Ruhr area, while the government guaranteed the costs. The Bergius process was extremely important for the supply of fuels to Germany during the Second World War, with the monthly production rate in 1943–4 being more than 700,000 tonnes. However, the plants were mostly destroyed at. the end of the war and were later dismantled.As a consequence of this success Bergius, who had gained an international reputation, went abroad to work as a consultant to several foreign governments. Experiments aiming to reduce the costs of production are still continued in some countries. By 1925, after he had solved all the principles of his process, he had turned to the production of dextrose by hydrolyzing wood with highly concentrated hydrochloric acid.[br]Principal Honours and DistinctionsNobel Prize 1931. Honorary doctorates, Heidelberg, Harvard and Hannover.Bibliography1907, "Über absolute Schwefelsäure als Lösungsmittel", unpublished thesis, Weida. 1913, Die Anwendung hoher Drucke bei chemischen Vorgängen und eine Nachbildungdes Entstehungsprozesses der Steinkohle, Halle. 1913, DRP no. 301, 231 (coal-liquefaction process).1925, "Verflüssigung der Kohle", Zeitschrift des Vereins Deutscher Ingenieure, 69:1313–20, 1359–62.1933, "Chemische Reaktionen unter hohem Druck", Les Prix Nobel en 1931, Stockholm, pp. 1–37.Further ReadingDeutsches Bergbau-Museum, 1985, Friedrich Bergius und die Kohleverflüssigung. Stationen einer Entwicklung, Bochum (gives a comprehensive and illustrated description of the man and the technology).H.Beck, 1982, Friedrich Bergius, ein Erfinderschicksal, Munich: Deutsches Museum (a detailed biographical description).W.Birkendfeld, 1964, Der synthetische Treibstoff 1933–1945. Ein Beitragzur nationalsozialistischen Wirtschafts-und Rüstungspolitik, Göttingen, Berlin and Frankfurt (describes the economic value of synthetic fuels for the Third Reich).WKBiographical history of technology > Bergius, Friedrich Carl Rudolf
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13 Colt, Samuel
SUBJECT AREA: Weapons and armour[br]b. 19 July 1814 Hartford, Connecticut, USAd. 10 January 1862 Hartford, Connecticut, USA[br]American inventor of the revolver.[br]The son of a textile manufacturer, as a youth Colt displayed an interest in chemistry, largely through bleaching and dyeing processes used in his father's business, and lectured to lay audiences on it. In 1832 he took ship as a deckhand on a voyage to India; the concept of the revolver is supposed to have come to him from watching the ship's wheel.Upon his return to the USA he described the idea to the US Patent Office, but did not register it until four years later, having taken out patents in Britain and France during a visit to Europe in 1835. He formed a company to manufacture his invention, but it failed in 1842. Even so, note had been taken of his weapon, and in 1846, upon the outbreak of the war with Mexico, the US Government placed an order for his revolver that was executed by the Eli Whitney arms factory in his native Hartford. Thereafter Colt set up another company, this time successfully. He also took an interest in other fields, experimenting with a submarine battery and electrically detonated mines, and opened a submarine telegraph between New York and Coney Island in 1843.CM -
14 Cotchett, Thomas
SUBJECT AREA: Textiles[br]fl. 1700s[br]English engineer who set up the first water-powered textile mill in Britain at Derby.[br]At the beginning of the eighteenth century, silk weaving was one of the most prosperous trades in Britain, but it depended upon raw silk worked up on hand twisting or throwing machines. In 1702 Thomas Cotchett set up a mill for twisting silk by water-power at the northern end of an island in the river Derwent at Derby; this would probably have been to produce organzine, the hard twisted thread used for the warp when weaving silk fabrics. Such mills had been established in Italy beginning with the earliest in Bologna in 1272, but it would appear that Cotchett used Dutch silk-throwing machinery that was driven by a water wheel that was 13½ ft (4.1 m) in diameter and built by the local engineer, George Sorocold. The enterprise soon failed, but it was quickly revived and extended by Thomas and John Lombe with machinery based on that being used successfully in Italy.[br]Further ReadingD.M.Smith, 1965, Industrial Archaeology of the East Midlands, Newton Abbot (provides an account of Cotchett's mill).W.H.Chaloner, 1963, "Sir Thomas Lombe (1685–1739) and the British silk industry", History Today (Nov.).R.L.Hills, 1970, Power in the Industrial Revolution, Manchester (a brief coverage of the development of early silk throwing mills).D.Kuhn, 1988, Science and Civilisation in China, Vol. V: Chemistry and ChemicalTechnology, Part 9, Textile Technology: spinning and reeling, Cambridge (covers the diffusion of the techniques of the mechanization of the silk-throwing industry from China to the West).RLH -
15 Drake, Edwin Laurentine
SUBJECT AREA: Mining and extraction technology[br]b. 29 March 1819 Greenville, New York, USAd. 8 November 1880 Bethlehem, Pennsylvania, USA[br]American pioneer oil driller.[br]He worked on his father's farm, was a clerk in a hotel and a store, and then became an express agent at a railway company in Springfield, Massachusetts, c.1845. After he had been working as a railway conductor in New Haven, Connecticut, for eight years, he resigned because of ill health. Owning some stocks in a Pennsylvania rock-oil company, which gathered oil from ground-level seepages mainly for medicinal use, he was engaged by this company and moved to Titusville, Pennsylvania, at the age of almost 40. After studying salt-well drilling by cable tool, which was still percussive, he became enthusiastic about the idea of using the same method to drill for oil, especially after researches in chemistry had revealed this new sort of fossil energy some years before.As a manager of the Seneca Oil Company, which referred to him as "Colonel" in letters of introduction simply to impress people with such titles, Drake began drilling in 1858, almost at the same time as pole-tool drilling for oil was started in Germany. His main contribution to the technology was the use of an iron pipe driven through the quicksand and the bedrock to prevent the bore-hole from filling. After nineteen months he struck oil at a depth of 21 m (69 ft) in August 1859. This was the first time that petroleum was struck at its source and the first proof of the presence of oil reservoirs within the earth's surface. Drake inaugurated the search for and the exploitation of the deep oil resources of the world and he initiated the science of petroleum engineering which became established at the beginning of the twentieth century.Drake failed to patent his drilling method; he was content being an oil commission merchant and Justice of the Peace in Titusville, which like other places in Pennsylvania became a boom town. Four years later he went to New York, where he lost all his money in oil speculations. He became very ill again and lived in poverty in Vermont and New Jersey until 1873, when he moved to Bethlehem, Pennsylvania, where he was pensioned by the state of Pennsylvania. The city of Titusville erected a monument to him and founded the Drake Museum.[br]Further ReadingDictionary of American Biography, Vol. III, pp. 427–8.Ida M.Tarbell, 1904, "The birth of industry", History of the Standard Oil Company, Vol. I, New York (gives a lively description of the booming years in Pennsylvania caused by Drake's successful drilling).H.F.Williamson and A.R.Daum, 1959, The American Petroleum Industry. The Age of Illumination, Evans ton, Ill.WKBiographical history of technology > Drake, Edwin Laurentine
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16 Hooke, Robert
[br]b. 18 July 1635 Freshwater, Isle of Wight, Englandd. 3 March 1703 London, England[br]English physicist, astronomer and mechanician.[br]Son of Revd John Hooke, minister of the parish, he was a sickly child who was subject to headaches which prevented protracted study. He devoted his time while alone to making mechanical models including a wooden clock. On the death of his father in October 1648 he was left £100 and went to London, where he became a pupil of Sir Peter Lely and then went to Westminster School under Dr Busby. There he learned the classical languages, some Hebrew and oriental languages while mastering six books of Euclid in one week. In 1653 he entered Christ Church College, Oxford, where he graduated MA in 1663, after studying chemistry and astronomy. In 1662 he was appointed Curator of Experiments to the Royal Society and was elected a Fellow in 1663. In 1665 his appointment was made permanent and he was given apartments in Gresham College, where he lived until his death in 1703. He was an indefatigable experimenter, perhaps best known for the invention of the universal joint named after him. The properties of the atmosphere greatly engaged him and he devised many forms of the barometer. He was the first to apply the spiral spring to the regulation of the balance wheel of the watch in an attempt to measure longitude at sea, but he did not publish his results until after Huygens's reinvention of the device in 1675. Several of his "new watches" were made by Thomas Tompion, one of which was presented to King Charles II. He is said to have invented, among other devices, thirty different ways of flying, the first practical system of telegraphy, an odometer, a hearing aid, an arithmetical machine and a marine barometer. Hooke was a small man, somewhat deformed, with long, lank hair, who went about stooped and moved very quickly. He was of a melancholy and mistrustful disposition, ill-tempered and sharp-tongued. He slept little, often working all night and taking a nap during the day. John Aubrey, his near-contemporary, wrote of Hooke, "He is certainly the greatest Mechanick this day in the World." He is said to have been the first to establish the true principle of the arch. His eyesight failed and he was blind for the last year of his life. He is best known for his Micrographia, or some Physiological Descriptions of Minute Bodies, first published in 1665. After the Great Fire of London, he exhibited a model for the rebuilding of the City. This was not accepted, but it did result in Hooke's appointment as one of two City Surveyors. This proved a lucrative post and through it Hooke amassed a fortune of some thousands of pounds, which was found intact after his death some thirty years later. It had never been opened in the interim period. Among the buildings he designed were the new Bethlehem (Bedlam) Hospital, the College of Physicians and Montague House.[br]Principal Honours and DistinctionsFRS 1663; Secretary 1677–82.IMcN -
17 Macintosh, Charles
[br]b. 29 December 1766 Glasgow, Scotlandd. 25 July 1843 Dunchattan, near Glasgow, Scotland[br]Scottish inventor of rubberized waterproof clothing.[br]As the son of the well-known and inventive dyer George Macintosh, Charles had an early interest in chemistry. At the age of 19 he gave up his work as a clerk with a Glasgow merchant to manufacture sal ammoniac (ammonium chloride) and developed new processes in dyeing. In 1797 he started the first Scottish alum works, finding the alum in waste shale from coal mines. His first works was at Hurlet, Renfrewshire, and was followed later by others. He then formed a partnership with Charles Tennant, the proprietor of a chemical works at St Rollox, near Glasgow, and sold "lime bleaching liquor" made with chlorine and milk of lime from their bleach works at Darnley. A year later the use of dry lime to make bleaching powder, a process worked out by Macintosh, was patented. Macintosh remained associated with Tennant's St Rollox chemical works until 1814. During this time, in 1809, he had set up a yeast factory, but it failed because of opposition from the London brewers.There was a steady demand for the ammonia that gas works produced, but the tar was often looked upon as an inconvenient waste product. Macintosh bought all the ammonia and tar that the Glasgow works produced, using the ammonia in his establishment to produce cudbear, a dyestuff extracted from various lichens. Cudbear could be used with appropriate mordants to make shades from pink to blue. The tar could be distilled to produce naphtha, which was used as a flare. Macintosh also became interested in ironmaking. In 1825 he took out a patent for converting malleable iron into steel by taking it to white heat in a current of gas with a carbon content, such as coal gas. However, the process was not commercially successful because of the difficulty keeping the furnace gas-tight. In 1828 he assisted J.B. Neilson in bringing hot blast into use in blast furnaces; Neilson assigned Macintosh a share in the patent, which was of dubious benefit as it involved him in the tortuous litigation that surrounded the patent until 1843.In June 1823, as a result of experiments into the possible uses of naphtha obtained as a by-product of the distillation of coal tar, Macintosh patented his process for waterproofing fabric. This comprised dissolving rubber in naphtha and applying the solution to two pieces of cloth which were afterwards pressed together to form an impermeable compound fabric. After an experimental period in Glasgow, Macintosh commenced manufacture in Manchester, where he formed a partnership with H.H.Birley, B.Kirk and R.W.Barton. Birley was a cotton spinner and weaver and was looking for ways to extend the output of his cloth. He was amongst the first to light his mills with gas, so he shared a common interest with Macintosh.New buildings were erected for the production of waterproof cloth in 1824–5, but there were considerable teething troubles with the process, particularly in the spreading of the rubber solution onto the cloth. Peter Ewart helped to install the machinery, including a steam engine supplied by Boulton \& Watt, and the naphtha was supplied from Macintosh's works in Glasgow. It seems that the process was still giving difficulties when Thomas Hancock, the foremost rubber technologist of that time, became involved in 1830 and was made a partner in 1834. By 1836 the waterproof coat was being called a "mackintosh" [sic] and was gaining such popularity that the Manchester business was expanded with additional premises. Macintosh's business was gradually enlarged to include many other kinds of indiarubber products, such as rubber shoes and cushions.[br]Principal Honours and DistinctionsFRS 1823.Further ReadingG.Macintosh, 1847, Memoir of Charles Macintosh, London (the fullest account of Charles Macintosh's life).T.Hancock, 1957, Narrative of the Indiarubber Manufacture, London.H.Schurer, 1953, "The macintosh: the paternity of an invention", Transactions of the Newcomen Society 28:77–87 (an account of the invention of the mackintosh).RLH / LRD -
18 Messel, Rudolf
SUBJECT AREA: Chemical technology[br]b. 14 January 1848 Darmstadt, Germanyd. 18 April 1920 London, England[br]German industrial chemist.[br]Messel served three years as an apprentice to the chemical manufacturers E.Lucius of Frankfurt before studying chemistry at Zürich, Heidelberg and Tübingen. In 1870 he travelled to England to assist the distinguished chemist Sir Henry Roscoe, but was soon recalled to Germany on the outbreak of the Franco-Prussian War. After hostilities ceased, Messel returned to London to join the firm of manufacturers of sulphuric acid Dunn, Squire \& Company of Stratford, London. The firm amalgamated with Spencer Chapman, and after Messel became its Managing Director in 1878 it was known as Spencer, Chapman \& Messel Ltd.Messel's principal contribution to chemical technology was the invention of the contact process for the manufacture of sulphuric acid. Earlier processes for making this essential product, now needed in ever-increasing quantities by the new processes for making dyestuffs, fertilizers and explosives, were based on the oxidation of sulphur dioxide by oxides of nitrogen, developed by Joshua Ward and John Roebuck. Attempts to oxidize the dioxide to the trioxide with the oxygen in the air in the presence of a suitable catalyst had so far failed because the catalyst had become "poisoned" and ineffective; Messel avoided this by using highly purified gases. The contact process produced a concentrated form of sulphuric acid called oleum. Until the outbreak of the First World War, Messel's firm was the principal manufacturer, but then the demand rose sharply, so that other firms had to engage in its manufacture. Production thereby increased from 20,000 to 450,000 tons per year.[br]Principal Honours and DistinctionsFRS 1912. President, Society of Chemical Industry 1911–12, 1914.Further Reading1931, Special jubilee issue, Journal of the Society of the Chemical Industry (July). G.T.Morgan and D.D.Pratt, 1938, The British Chemical Industry, London.LRD -
19 Neilson, James Beaumont
SUBJECT AREA: Metallurgy[br]b. 22 June 1792 Shettleston, near Glasgow, Scotlandd. 18 January 1865 Queenshill, Kirkcudbright-shire, Scotland[br]Scottish inventor of hot blast in ironmaking.[br]After leaving school before the age of 14 Neilson followed his father in tending colliery-steam engines. He continued in this line while apprenticed to his elder brother and afterwards rose to engine-wright at Irvine colliery. That failed and Neilson obtained work as Foreman at the first gasworks to be set up in Glasgow. After five years he became Manager and Engineer to the works, remaining there for thirty years. He introduced a number of improvements into gas manufacture, such as the use of clay retorts, iron sulphate as a purifier and the swallow-tail burner. He had meanwhile benefited from studying physics and chemistry at the Andersonian University in Glasgow.Neilson is best known for introducing hot blast into ironmaking. At that time, ironmasters believed that cold blast produced the best results, since furnaces seemed to make more and better iron in the winter than the summer. Neilson found that by leading the air blast through an iron chamber heated by a coal fire beneath it, much less fuel was needed to convert the iron ore to iron. He secured a patent in 1828 and managed to persuade Clyde Ironworks in Glasgow to try out the device. The results were immediately favourable, and the use of hot blast spread rapidly throughout the country and abroad. The equipment was improved, raising the blast temperature to around 300°C (572°F), reducing the amount of coal, which was converted into coke, required to produce a tonne of iron from 10 tonnes to about 3. Neilson entered into a partnership with Charles Macintosh and others to patent and promote the process. Successive, and successful, lawsuits against those who infringed the patent demonstrates the general eagerness to adopt hot blast. Beneficial though it was, the process did not become really satisfactory until the introduction of hot-blast stoves by E.A. Cowper in 1857.[br]Principal Honours and DistinctionsFRS 1846.Further ReadingS.Smiles, Industrial Biography, Ch. 9 (offers the most detailed account of Neilson's life). Proc. Instn. Civ. Engrs., vol. 30, p. 451.J.Percy, 1851, Metallurgy: Iron and Steel (provides a detailed history of hot blast).W.K.V.Gale, 1969, Iron and Steel, London: Longmans (provides brief details).LRDBiographical history of technology > Neilson, James Beaumont
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20 Solvay, Ernest
SUBJECT AREA: Chemical technology[br]b. 16 April 1838 Rebcq, near Brussels, Belgiumd. 26 May 1922 Brussels, Belgium[br]Belgian manufacturer, first successfully to produce soda by the ammonia-soda process.[br]From the beginning of the nineteenth century, soda had been manufactured by the Leblanc process. Important though it was, serious drawbacks had shown themselves early on. The worst was the noxious alkali waste left after the extraction of the soda, in such large quantities that two tons of waste were produced for one of soda. The first attempt to work out an alternative process was by the French scientist and engineer A.J. Fresnel, but it failed. The process consisted essentially of passing carbon dioxide into a solution of ammonia in brine (sodium chloride). The product, sodium bicarbonate, could easily be converted to soda by heating. For over half a century, practical difficulties, principally the volatility of the ammonia, dogged the process and a viable solution eluded successive chemists, including James Muspratt and William Deacon.Finally, Ernest Solvay and his brother Alfred tackled the problem, and in 1861 they filed a Belgian patent for improvements, notably the introduction of a carbonating tower, which made the process continuous. The first works were set up at Couillet in 1863, but four further years of hard work were still needed to overcome teething troubles. Once the Solvay ammonia-soda process was working well, it made rapid strides. It was introduced into Britain in 1872 under licence to Ludwig Mond and four years later Solvay opened the large Dombaske works in France.Solvay was a member of the Belgian Senate and a Minister of State. International institutes of physics, chemistry and sociology are named after him.[br]Further ReadingP.Heger and C.Lefebvre, 1919, La vie d'Ernest Solvay.Obituary, 1922, Ind. Eng. Chem.: 1,156.LRD
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Chemistry (album) — Infobox Album | Name = Chemistry Type = Album Artist = Girls Aloud Released = flagicon|UK 5 December 2005 flagicon|AUS 20 February 2006 flagicon|USA 26 June 2007 (Digital) Recorded = September 2004 April 2005 London, England Genre = Pop|, dance… … Wikipedia
chemistry — /kem euh stree/, n., pl. chemistries. 1. the science that deals with the composition and properties of substances and various elementary forms of matter. Cf. element (def. 2). 2. chemical properties, reactions, phenomena, etc.: the chemistry of… … Universalium
History of chemistry — History of science … Wikipedia
All About Chemistry — Infobox Album Name = All About Chemistry Type = Studio album Artist = Semisonic Released = 2001 Recorded = Genre = Alternative Rock Length = 51:41 Label = MCA Producer = Semisonic Reviews = *Q magazine Rating|5|5 *NME Rating 10|3… … Wikipedia
Forensic chemistry — is the application of chemistry to law enforcement or the failure of products or processes. Many different analytical methods may be used to reveal what chemical changes occurred during an incident, and so help reconstruct the sequence of events … Wikipedia
fail — I. verb Etymology: Middle English failen, from Anglo French faillir, from Vulgar Latin *fallire, alteration of Latin fallere to deceive, disappoint Date: 13th century intransitive verb 1. a. to lose strength ; weaken < her health was fail … New Collegiate Dictionary
Pelswick — infobox Television show name = Pelswick caption = Pelswick logo rating = TV Y format = Animated Adventure/Comedy runtime = creator = John Callahan starring = country = Canada production house = Nelvana network = CBC Television (Canada)… … Wikipedia
chemical bonding — ▪ chemistry Introduction any of the interactions that account for the association of atoms into molecules, ions, crystals, and other stable species that make up the familiar substances of the everyday world. When atoms approach one another … Universalium
Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity. Computer scientist Manindra Agrawal of the… … Universalium