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1 condensed scale
English-Russian big polytechnic dictionary > condensed scale
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2 condensed scale
Полиграфия: шкала с небольшим количеством полей -
3 condensed scale
Англо-русский словарь по полиграфии и издательскому делу > condensed scale
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4 scale
1. шкалаKelvin scale — шкала абсолютной температуры, шкала Кельвина
binary scale — двоичная шкала; двоичная система счисления
2. масштабная линейка3. масштаб; устанавливать масштаб; определять масштабcontinuous-tone density scale — тоновая шкала, серый клин
grey scale — серая шкала, шкала яркости
scale of investment — размер капвложений; масштабы вложений
4. линейный масштаб5. линейная шкалаevenly divided scale — линейная шкала; равномерная шкала
6. логарифмическая шкала7. логарифмический масштабto photograph to half scale — снимать в масштабе 1:2
plotting scale — масштаб чертежа; масштабная линейка
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5 scale
1) шкала2) масштабная линейка3) масштаб (отношение размера объекта к размеру его изображения) || устанавливать масштаб; определять масштаб- in scale- scale- scale up- em-scaleАнгло-русский словарь по полиграфии и издательскому делу > scale
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6 turn of the scale
поход, небольшой перевес -
7 шкала с небольшим количеством полей
Polygraphy: condensed scaleУниверсальный русско-английский словарь > шкала с небольшим количеством полей
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8 original
adj.1 original (nuevo, primero).2 eccentric, different (raro).m.original.* * *► adjetivo1 (gen) original1 original\en el original in the originalser original de (procedente de, nacido en) from* * *noun m. adj.* * *1. ADJ1) (=inicial) [idea, documento, idioma] original; [edición] firstpecado 1)van a intentar devolver la zona a su estado original — they are going to try to return the area to its original state
2) (=novedoso) original3) (=raro) unusual, original; (=extravagante) eccentricél siempre tiene que ser tan original — iró he always has to be so different
4) (=creativo) original5) (=procedente)ser original de — [planta, animal] to be native to
2. SM1) (=modelo) original2) (Tip) (tb: original de imprenta) manuscript, original, copy* * *I1) (primero, no copiado) original2) <artista/enfoque> originalIItú siempre tan original! — (iró) you always have to be different!
masculino originalun original de Dalí — a Dalí original, an original Dalí
* * *= creative, manuscript, master, master copy, original, original document, master, raw, pristine, founding, unedited.Ex. His definitive article, 'Backlog to Frontlog,' Library Journal (September 15, 1969), was indicative of his creative and simple, yet effective and economical solutions to traditional library problems.Ex. A manuscript is a writing made by hand (including musical scores), typescripts, and inscriptions on clay tablets, stone, etc.Ex. The great significance of a fully developed network will be that it will relieve libraries of the necessity of maintaining their own copies of the master data base.Ex. Normally, before a manuscript is printed or duplicated in multiple copies the editor will be provided with printer's proofs or a master copy.Ex. Here entry is made under the original author of an edition that has been revised, enlarged, updated, condensed, and so on by another person.Ex. An abstract is a concise and accurate representation of the contents of a document, in a style similar to that of the original document.Ex. The supply would need to be replenished when the multiple copies had been used, so a master would be kept - usually for offset litho reproduction or for cutting a stencil on an electronic scanner.Ex. Vegetable fibres in their raw state contain the necessary strands of cellulose which can be converted into paper.Ex. Although national parks are perceived as pristine areas, many are dumping grounds for hazardous materials - everything from industrial toxins to unexploded munitions.Ex. The founding missions have being found increasingly ill-suited for the demands of the marketplace.Ex. This bank of data represented a valuable source of unedited views about users' perceptions, thoughts and attitudes about libraries and electronic resources.----* base de datos en estado original = raw database.* edición original = original edition.* error del original = sic.* estar hecho con la mismas dimensiones que el original = be to scale.* original de una obra de arte = art original.* original listo para reproducir = camera-ready copy.* pecado original, el = original sin, the.* poco original = unoriginal.* título original = original title.* * *I1) (primero, no copiado) original2) <artista/enfoque> originalIItú siempre tan original! — (iró) you always have to be different!
masculino originalun original de Dalí — a Dalí original, an original Dalí
* * *= creative, manuscript, master, master copy, original, original document, master, raw, pristine, founding, unedited.Ex: His definitive article, 'Backlog to Frontlog,' Library Journal (September 15, 1969), was indicative of his creative and simple, yet effective and economical solutions to traditional library problems.
Ex: A manuscript is a writing made by hand (including musical scores), typescripts, and inscriptions on clay tablets, stone, etc.Ex: The great significance of a fully developed network will be that it will relieve libraries of the necessity of maintaining their own copies of the master data base.Ex: Normally, before a manuscript is printed or duplicated in multiple copies the editor will be provided with printer's proofs or a master copy.Ex: Here entry is made under the original author of an edition that has been revised, enlarged, updated, condensed, and so on by another person.Ex: An abstract is a concise and accurate representation of the contents of a document, in a style similar to that of the original document.Ex: The supply would need to be replenished when the multiple copies had been used, so a master would be kept - usually for offset litho reproduction or for cutting a stencil on an electronic scanner.Ex: Vegetable fibres in their raw state contain the necessary strands of cellulose which can be converted into paper.Ex: Although national parks are perceived as pristine areas, many are dumping grounds for hazardous materials - everything from industrial toxins to unexploded munitions.Ex: The founding missions have being found increasingly ill-suited for the demands of the marketplace.Ex: This bank of data represented a valuable source of unedited views about users' perceptions, thoughts and attitudes about libraries and electronic resources.* base de datos en estado original = raw database.* edición original = original edition.* error del original = sic.* estar hecho con la mismas dimensiones que el original = be to scale.* original de una obra de arte = art original.* original listo para reproducir = camera-ready copy.* pecado original, el = original sin, the.* poco original = unoriginal.* título original = original title.* * *A1 (primero, inicial) ‹texto› originalen su forma original in its original form2 (no copiado) originales un Hockney original it's an original HockneyB (novedoso) ‹artista/novela/enfoque› original¡tú siempre tan original! ( iró); you always have to be different!C(de un país, una región): el maíz es original de América corn originated in o originally came from America, corn is native to Americaoriginalun original de Dalí a Dalí original, an original Dalímándale el original y archiva la copia send her the original and file the copylo leyó en el original she read it in the original French ( o Spanish etc)Compuesto:original, manuscript* * *
original adjetivo / noun masculine
original
original
I adjetivo original
II mf original: tengo que entregar el original a la imprenta, I have to give the original to the printer's
' original' also found in these entries:
Spanish:
m.s.
- novedosa
- novedoso
- originaria
- originario
- pecado
- primitiva
- primitivo
- promotor
- promotora
- retornar
- subtítulo
- versión
- vista
- visto
- VO
- subtitular
English:
arrange
- beat down
- close
- creative
- derivative
- first
- individual
- master
- novel
- original
- originally
- sell back
- unconventional
- unusual
- different
- line
- secondary
- stick
- unoriginal
* * *♦ adj1. [nuevo, primero] original;el texto original the original text;en versión original in the original version2. [no imitación] original;este es original y esta la copia this is original and this is the copy;un Velázquez original an original Velázquez3. [inusual] original;esa corbata es muy original that's a very original o unusual tie4. [raro] different, eccentric;tú siempre tan original you always have to be different[animal, planta] to be native to♦ nm1. [primera versión] original;hay que entregar tres copias y el original you have to give them the original and three copies;leer algo en el original to read sth in the original2. [manuscrito] manuscript* * *m/adj original* * *original adj & nm: original♦ originalmente adv* * *original adj n original -
9 water
вода || увлажнять, смачивать, мочить— water on
* * *
to go to water — обводняться (о скважине или месторождении, добыча нефти в которых в результате этого становится нерентабельной)
* * *
* * *
вода, воды || обводнятьwater alone — вода без добавок; чистая вода;
water in hole — вода в скважине;
to water back — уменьшать плотность бурового раствора добавкой в него воды;
to go to water — обводняться (о скважине, месторождении, добыча нефти в которых в результате этого становится нерентабельной);
to water off — прекращать подачу промывочной воды;
to water on — включать подачу промывочной воды;
- water of gelatinwater to surface — вода, поступающая на поверхность;
- water of hydration
- acid-cut water
- aerated water
- aerated formation water
- aggressive water
- alkaline formation water
- artesian water
- associated water
- backwash water
- bottom water
- bottom pressure water
- brine water
- carbonated water
- cavern wash water
- circulating water
- clear water
- condensate water
- condensation water
- condensed water
- confined ground water
- connate water
- corrosive water
- corrosive formation water
- cumulative water injecting
- dirty water
- drill water
- drilling water
- drilling mud makeup water
- edge water
- extraneous water
- field waste water
- fissure water
- flood water
- flushing water
- formation water
- fracture water
- free water
- fresh water
- fringe water
- gas-cut water
- gas-cut acid water
- gas-cut load water
- gas-cut salt water
- gelled water
- gun barrel salt water
- hard water
- head water
- heavily gas-cut water
- heavily oil-cut water
- hot drilling water
- imbibition water
- injected water
- injection water
- internal water
- interstitial water
- jacket water
- karst water
- kremastic water
- lead water
- leakage water
- lime water
- load water
- local water
- makeup water
- makeup water for drilling mud
- middle water
- mixing water
- mud-cut water
- mud-cut salt water
- mud-makeup water
- ocean water
- oil water
- oil-and-gas-cut water
- oil-and-gas-cut salt water
- oil-cut salt water
- oil-field water
- oil-formation water
- optimum water
- over water
- percolating water
- pore water
- pressure water
- primary waters
- process water
- produced water
- product water
- recirculated water
- reclaimed waste water
- refinery water
- reservoir water
- return water
- salt water
- secondary water
- sediment water
- seepage water
- service water
- sewage water
- slightly gas-cut water
- slightly oil-cut water
- sludge water
- sludging water
- soft water
- stratal water
- subsurface water
- suspended water
- top water
- treated water
- under water
- underground water
- upper water
- upper head water
- vadose water
- wandering water
- wash water
- washdown water
- waste water
- white water* * * -
10 таблица
жен. table;
plate( рисунков, чертежей) ;
schedule, list;
scale;
paradigm грам. возглавлять таблицу розыгрыша ≈ спорт to be at the top of the table последние места в таблице ≈ спорт the bottom of the table таблица умножения ≈ multiplication table таблицы логарифмов ≈ logarithm tables таблица выигрышей ≈ prize-list турнирная таблица ≈ fixture list таблица розыгрыша ≈ (score-) table таблица вероятности попаданий ≈ accuracy table первый в таблице ≈ at the top of the table, top-scorer последний в таблице ≈ at the bottom of the table, bottom teamтаблиц|а - ж. table;
~ умножения multiplication table;
~ логарифмов logarithm table;
периодическая ~ Менделеева хим. periodic table;
~ приливов мор. tide table;
~ выигрышей (по внутренним займам, лотереям) prize-list;
~ розыгрыша первенства (в спорте) score-table;
первый (последний) в ~е top (bottom) of the table;
внести в ~у to tabulate;
~ весов и мер table of weights and measures;
детализированная ~ individual table;
~ затрат и выпуска input-output table;
~ контроля качества quality control table;
~ биржевых курсов stock exchange;
налоговая ~ tax table;
~ перевода (пересчёта) мер conversion table;
сводная ~ condensed;
summary table;
сокращённая ~ abridged table;
~ сокращений table of abbreviations;
справочная ~ reference table;
сравнительная ~ comparison table;
~ тарифных ставок tariff( rate) table;
~ цен price schedule;
проверочная ~ checking table;
~ затрат (потерь) cost (loss) table;
основная ~ master table;
~ значений value table. -
11 deposit
1) выделяться
2) депозит
3) депонировать
4) залоговый
5) месторождение
6) налет
7) осаждаться
8) оседать
9) отлагаться
10) отложение
11) залежь
12) осадок
13) россыпь
14) нагар
15) накипь
16) осмотический
– alluvial deposit
– ash deposit
– bedded deposit
– carbon deposit
– coal deposit
– commercial deposit
– condensed gas deposit
– contact deposit
– dealluvial deposit
– deposit at
– deposit at a cathode
– deposit bead
– deposit by evaporation
– deposit evaluation
– deposit film
– deposit water
– developed deposit
– dewater a deposit
– dislocated deposit
– disseminated deposit
– faulted deposit
– film-like deposit
– gravel deposit
– high-grade deposit
– low-grade deposit
– magmatogene deposit
– major deposit
– massive deposit
– metallic ore deposit
– metamorphogene deposit
– mineral deposit
– non-tabular deposit
– oil deposit
– opening-up of ore deposit
– ore deposit
– prove deposit
– scale deposit
– sedimentary deposit
– sedimentogene deposit
– sheet deposit
– strike of deposit
– vein deposit
– water-bearing deposit
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12 water
1) вода; уровень воды2) орошать; увлажнять; мочить; смачивать, поливать; поить3) просачиваться, давать течь4) разбавлять•- water of condensation - water of crystallization - absorption water - acid water - acid waste water - activated water - adhesive water - adsorbed water - aerated water - aggressive water - alkaline water - artesian water - atmospheric water - attraction water - backwash water - banked-up water - basal water - bathing water - bitter water - bleed-off water - boiler water - boiling water - bottom water - bound water - brackish water - capillary water - chemically combined water - chilled water - chlorinated water - chlorine water - circulating water - city water - clarified water - clear water - combined water - condensed water - confined water - connate water - contaminated water - cooling water - corrosive water - crystallization water - dammed water - day water - deep water - deionized water - delivered water - diluted water - dirty water - discharge water - dish water - distilled water - domestic water - domestic hot water - downstream water - drain water - drinking water - earthy water - earth water - edge water - effluent water - entrained water - eternal water - excess water - excessive tail water - feed water - film water - fixed water - finished water - fleet water - flood water - flowing water - flowing sheet water - flushing water - foul water - free water - fresh water - fringe water - gauging water - gel water - graphite water - gravitational water - gravity water - gravity ground water - gray water - gritty water - ground water - gutter water - hard water - head water - heavy water - high water - hydrate water - hydration water - hygroscopic water - impotable water - impounded surface water - impure water - industrial water - industrial waste water - infiltration water - influent water - injection water - intermediate water - interstitial water - irrigation water - jacket water - lagooned water - leakage water - level water - lime water - lockage water - low water - main water - make-up water - manufacturing water - mean high water - mean low water - melt water - meteoric water - microbiologically safe water - mine water - mineral water - mineral-free water - mixing water - moderately hard water - mother water - muddy water - municipal water - natural water - naturally soft water - natural sparkling water - natural tail water - nonartesian water - noncirculating water - nonpotable water - onsite water - outlet water - overflow water - perched water - percolating water - phreatic water - piped water - pit water - potable water - power water - precipitated water - press water - priming water - process water - product water - pure water - quarry water - quiescent water - rain water - raw water - reclaimed water - recycled water - residuary water - retained water - return water - reuse water - river water - running water - rusty water - safe water - saline water - saline-alkaline water - salt water - sample water - sanitary water - scale-producing water - sea water - seepage water - seismic sea water - seltzer water - service water - sewage water - shallow water - shoal water - sluicing water - snow water - soft water - softened water - sparkling water - spilling water - sprayed water - spring water - stagnant water - still water - still head water - storm water - subcutaneous water - subsurface water - sulphur water - surface water - suspended water - swamp water - sweet water - tail water - tap water - thawing water - thermal water - tide water - town water - treated water - trickling water - turbid water - uncontaminated water - underground water - untreated water - upper water - vadose water - very hard water - wash water - washing water - waste water - wasted water - well water - whirling water* * *1. вода; влага2. поливать водой; увлажнять, орошать- water of hydrationwater contained in aggregates — вода, содержащаяся в заполнителях; вода, поглощённая заполнителями
- absorbed water
- adsorbed water
- aggressive water
- artesian water
- bank-filtered water
- batched water
- bleed water
- boiler water
- bound water
- brackish water
- capillary fringe water
- chilled water
- circulating water
- city water
- clean water
- clear water
- concrete curing water
- condenser water
- confined water
- cooling water
- cut water
- deep-well water
- domestic hot water
- drinking water
- emergency water
- excess water
- feed water
- finished water
- finish water
- foul water
- free water
- fresh water
- fringe water
- gauged water
- glycol water
- gravitational water
- gravity water
- hard water
- heating water
- held water
- higher high water
- higher low water
- high pressure hot water
- hygroscopic water
- impounded water
- industrial water
- industrial waste water
- infiltration water
- interstitial water
- intrapermafrost water
- javelle water
- lime water
- lockage water
- low water
- lower high water
- lower low water
- low pressure hot water
- low temperature hot water
- mains water
- make-up water
- mixing water
- perched water
- phreatic water
- potable water
- pressure water
- primary water
- process water
- raw water
- receiving water
- recirculated water
- recooling water
- regenerated water
- return water
- reused sewage water
- rinse water
- salt water
- scavenging water
- sea water
- silicone water
- slop water
- sludge water
- soft water
- storm water
- subpermafrost water
- subsurface water
- superheated water
- suprapermafrost water
- surface water
- surplus water
- sweet water
- system water
- tape water
- untreated water
- used water
- washout water
- wash water
- waste water
- well water -
13 deposit
1) отложение || отлагаться2) осадок || осаждаться3) месторождение, залежь ( полезных ископаемых)4) осаждённое покрытие || наносить покрытие5) депозит, вклад6) взнос7) депонировать, класть на банковский депозит•to deposit a run — сварка тянуть шов
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14 καταπυκνόω
A stud thickly,τρήμασι τὸ τεῖχος Plb.8.5.6
;θύρας ἥλοις D.S.18.71
;τοῖς ἀφώνοις τὰς συλλαβάς D.H.Comp.16
;παραδειγμάτων πλήθει τὴν πόλιν Plu.Lyc.27
;τοῖς ὑπερβατοῖς Phld.Rh.1.160
S.:—[voice] Pass., of the sky,καταπεπυκνῶσθαι.. πλήθει ἀστέρων Arist.Mete. 346a29
; of a country, ἐλαίαις καταπεπυκνῶσθαι to be thickly planted with.. (v.l. for -πεφυτεῦσθαι), D.S. 3.44: metaph.,βίος ἐν θαλίαις -πεπυκνωμένος Porph.Plot.23
.II force into a small compass, compress, condense,Ἐπίκουρος οὕτω κατεπύκνου τὴν ἡδονήν Damox.2.62
; τάλαντ' ἐγώ σοι κατεπύκνωσα τέτταρα spent four talents in a lump, ib.4; to illustrate this is cited the dogma of Epicur., Sent.9, εἰ κατεπυκνοῦτο πᾶσα ἡδονὴ κτλ., cf.καταπύκνωσις; ὁ Λυκοῦργος τοὺς πολίτας τῇ σιωπῇ πιέζων συνῆγε καὶ κατεπύκνου Plu.2.510f
:—[voice] Pass.,- πεπύκνωται ἡ πραγματεία Porph. Plot.14
; also εἰ μὴ -πυκνοῦταί σοι τὸ ἀπὸ δογμάτων ὀρθῶν ἕκαστα πράσσειν that your habit of acting.. is not consolidated, M.Ant.5.9.2 in Music, κ. τὸ διάγραμμα fill up the intervals in a scale (with smaller intervals), Aristox.Harm.p.7 M.:—[voice] Pass., Theo Sm.p.91 H., Nicom. Exc.7.III [voice] Pass., to be condensed, of complex forms of inference (cf. πυκνόω v), Arist.APo. 79a30.Greek-English dictionary (Αγγλικά Ελληνικά-λεξικό) > καταπυκνόω
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15 Champion, William
SUBJECT AREA: Metallurgy[br]b. 1710 Bristol, Englandd. 1789 England[br]English metallurgist, the first to produce metallic zinc in England on an industrial scale.[br]William, the youngest of the three sons of Nehemiah Champion, stemmed from a West Country Quaker family long associated with the metal trades. His grandfather, also called Nehemiah, had been one of Abraham Darby's close Quaker friends when the brassworks at Baptist Mills was being established in 1702 and 1703. Nehemiah II took over the management of these works soon after Darby went to Coalbrookdale, and in 1719, as one of a group of Bristol copper smelters, he negotiated an agreement with Lord Falmouth to develop copper mines in the Redruth area in Cornwall. In 1723 he was granted a patent for a cementation brass-making process using finely granulated copper rather than the broken fragments of massive copper hitherto employed.In 1730 he returned to Bristol after a tour of European metallurgical centres, and he began to develop an industrial process for the manufacture of pure zinc ingots in England. Metallic zinc or spelter was then imported at great expense from the Far East, largely for the manufacture of copper alloys of golden colour used for cheap jewellery. The process William developed, after six years of experimentation, reduced zinc oxide with charcoal at temperatures well above the boiling point of zinc. The zinc vapour obtained was condensed rapidly to prevent reoxidation and finally collected under water. This process, patented in 1738, was operated in secret until 1766 when Watson described it in his Chemical Essays. After encountering much opposition from the Bristol merchants and zinc importers, William decided to establish his own integrated brassworks at Warmley, five meals east of Bristol. The Warmley plant began to produce in 1748 and expanded rapidly. By 1767, when Warmley employed about 2,000 men, women and children, more capital was needed, requiring a Royal Charter of Incorporation. A consortium of Champion's competitors opposed this and secured its refusal. After this defeat William lost the confidence of his fellow directors, who dismissed him. He was declared bankrupt in 1769 and his works were sold to the British Brass Company, which never operated Warmley at full capacity, although it produced zinc on that site until 1784.[br]Bibliography1723, British patent no. 454 (cementation brass-making process).1738, British patent no. 564 (zinc ingot production process).1767, British patent no. 867 (brass manufacture wing zinc blende).Further ReadingJ.Day, 1973, Bristol Brass: The History of the Industry, Newton Abbot: David \& Charles.A.Raistrick, 1970, Dynasty of Ironfounders: The Darbys and Coalbrookdale, Newton Abbot: David \& Charles.J.R.Harris, 1964, The Copper King, Liverpool University Press.ASD -
16 Hornblower, Jonathan
SUBJECT AREA: Steam and internal combustion engines[br]b. 1753 Cornwall (?), Englandd. 1815 Penryn, Cornwall, England[br]English mining engineer who patented an early form of compound steam engine.[br]Jonathan came from a family with an engineering tradition: his grandfather Joseph had worked under Thomas Newcomen. Jonathan was the sixth child in a family of thirteen whose names all began with "J". In 1781 he was living at Penryn, Cornwall and described himself as a plumber, brazier and engineer. As early as 1776, when he wished to amuse himself by making a small st-eam engine, he wanted to make something new and wondered if the steam would perform more than one operation in an engine. This was the foundation for his compound engine. He worked on engines in Cornwall, and in 1778 was Engineer at the Ting Tang mine where he helped Boulton \& Watt erect one of their engines. He was granted a patent in 1781 and in that year tried a large-scale experiment by connecting together two engines at Wheal Maid. Very soon John Winwood, a partner in a firm of iron founders at Bristol, acquired a share in the patent, and in 1782 an engine was erected in a colliery at Radstock, Somerset. This was probably not very successful, but a second was erected in the same area. Hornblower claimed greater economy from his engines, but steam pressures at that time were not high enough to produce really efficient compound engines. Between 1790 and 1794 ten engines with his two-cylinder arrangement were erected in Cornwall, and this threatened Boulton \& Watt's near monopoly. At first the steam was condensed by a surface condenser in the bottom of the second, larger cylinder, but this did not prove very successful and later a water jet was used. Although Boulton \& Watt proceeded against the owners of these engines for infringement of their patent, they did not take Jonathan Hornblower to court. He tried a method of packing the piston rod by a steam gland in 1781 and his work as an engineer must have been quite successful, for he left a considerable fortune on his death.[br]Bibliography1781, British patent no. 1,298 (compound steam engine).Further ReadingR.Jenkins, 1979–80, "Jonathan Hornblower and the compound engine", Transactions of the Newcomen Society 11.J.Tann, 1979–80, "Mr Hornblower and his crew, steam engine pirates in the late 18th century", Transactions of the Newcomen Society 51.J.Farey, 1827, A Treatise on the Steam Engine, Historical, Practical and Descriptive, reprinted 1971, Newton Abbot: David \& Charles (an almost contemporary account of the compound engine).D.S.L.Cardwell, 1971, From Watt to Clausius. The Rise of Thermo dynamics in the Early Industrial Age, London: Heinemann.H.W.Dickinson, 1938, A Short History of the Steam Engine, Cambridge University Press.R.L.Hills, 1989, Power from Steam. A History of the Stationary Steam Engine, Cambridge University Press.RLH -
17 Porta, Giovanni Battista (Giambattista) della
SUBJECT AREA: Steam and internal combustion engines[br]b. between 3 October and 15 November 1535 Vico Equense, near Naples, Italyd. 4 February 1615 Naples, Italy[br]Italian natural philosopher who published many scientific books, one of which covered ideas for the use of steam.[br]Giambattista della Porta spent most of his life in Naples, where some time before 1580 he established the Accademia dei Segreti, which met at his house. In 1611 he was enrolled among the Oziosi in Naples, then the most renowned literary academy. He was examined by the Inquisition, which, although he had become a lay brother of the Jesuits by 1585, banned all further publication of his books between 1592 and 1598.His first book, the Magiae Naturalis, which covered the secrets of nature, was published in 1558. He had been collecting material for it since the age of 15 and he saw that science should not merely represent theory and contemplation but must arrive at practical and experimental expression. In this work he described the hardening of files and pieces of armour on quite a large scale, and it included the best sixteenth-century description of heat treatment for hardening steel. In the 1589 edition of this work he covered ways of improving vision at a distance with concave and convex lenses; although he may have constructed a compound microscope, the history of this instrument effectively begins with Galileo. His theoretical and practical work on lenses paved the way for the telescope and he also explored the properties of parabolic mirrors.In 1563 he published a treatise on cryptography, De Furtivis Liter arum Notis, which he followed in 1566 with another on memory and mnemonic devices, Arte del Ricordare. In 1584 and 1585 he published treatises on horticulture and agriculture based on careful study and practice; in 1586 he published De Humana Physiognomonia, on human physiognomy, and in 1588 a treatise on the physiognomy of plants. In 1593 he published his De Refractione but, probably because of the ban by the Inquisition, no more were produced until the Spiritali in 1601 and his translation of Ptolemy's Almagest in 1605. In 1608 two new works appeared: a short treatise on military fortifications; and the De Distillatione. There was an important work on meteorology in 1610. In 1601 he described a device similar to Hero's mechanisms which opened temple doors, only Porta used steam pressure instead of air to force the water out of its box or container, up a pipe to where it emptied out into a higher container. Under the lower box there was a small steam boiler heated by a fire. He may also have been the first person to realize that condensed steam would form a vacuum, for there is a description of another piece of apparatus where water is drawn up into a container at the top of a long pipe. The container was first filled with steam so that, when cooled, a vacuum would be formed and water drawn up into it. These are the principles on which Thomas Savery's later steam-engine worked.[br]Further ReadingDictionary of Scientific Biography, 1975, Vol. XI, New York: C.Scribner's Sons (contains a full biography).H.W.Dickinson, 1938, A Short History of the Steam Engine, Cambridge University Press (contains an account of his contributions to the early development of the steam-engine).C.Singer (ed.), 1957, A History of Technology, Vol. III, Oxford University Press (contains accounts of some of his other discoveries).I.Asimov (ed.), 1982, Biographical Encyclopaedia of Science and Technology, 2nd edn., New York: Doubleday.G.Sarton, 1957, Six wings: Men of Science in the Renaissance, London: Bodley Head, pp. 85–8.RLH / IMcNBiographical history of technology > Porta, Giovanni Battista (Giambattista) della
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