Trunk

Trunk (pronounced truhngk)

(1) The main stem of a tree, as distinct from the branches (limbs) and roots (also as bole; tree trunk).

(2) Of, relating to or noting a main channel or line, as of a railroad, waterway or something which assumes a similar shape (topographically).

(3) A large, sturdy box or chest for holding or transporting clothes, personal effects or other articles.  Such trunks usually have a hinged (sometimes domed) lid and handles at each end, provided because such is the size & weight, it takes at least two to carry one when loaded.

(4) A compartment, most often in the rear coachwork of an automobile, in which luggage, a spare tire, and other articles may be kept (a “boot” in the UK and certain other places in the English-speaking world and a “dicky” in India and elsewhere in South Asia).

(5) A storage compartment fitted behind the seat of a motorcycle and known also as a top-ox or top-case (as distinct from a “pannier” or “saddlebag” which is fitted at the side (usually in pairs), below the level of the seat).

(6) In anatomy, the body of a person or an animal excluding the head and limbs (the torso).

(7) In pathology, the main body of an artery, nerve, or the like, as distinct from its branches.

(8) In ichthyology, that part of a fish between the head and anus.

(9) In engineering and architecture, a name for a conduit, shaft, duct, channel or chute etc, used variously for airflow (thermal or blown), water, coal, grain etc.

(10) In steam engines, a large pipe forming the piston rod of a steam engine, of sufficient diameter to allow one end of the connecting rod to be attached to the crank, and the other end to pass within the pipe directly to the piston, thus making the engine more compact.

(11) In extractive mining, a flume or sluice in which ores are separated from the slimes in which they are contained.

(12) In architecture, the dado or die of a pedestal.

(13) In architecture, the part of a pilaster between the base and capital, corresponding to the shaft of a column.

(14) In hydrology, the main channel, artery or line in a river, railroad, highway, canal or other tributary system.

(15) In telephony, a telephone line or channel between two central offices or switching devices that is used in providing telephone connections between subscribers generally (also called a “tie-line”).

(16) In telegraphy, a telegraph line or channel between two main or central offices.

(17) In telecommunications, to provide simultaneous network access to multiple clients by sharing a set of circuits, carriers, channels or frequencies.

(18) In clothing, brief shorts (loose-fitting or tight) worn by men chiefly for boxing, swimming and athletics (some historically known as “trunk hose”.

(19) In zoology, the elongated prehensile, flexible, cylindrical nasal appendage of the elephant and certain other creatures (the proboscis).

(20) In nautical use, a large enclosed passage through the decks or bulkheads of a vessel, used as air ducting for purposes of heating, cooling, ventilation and such.

(21) In shipbuilding, any of various watertight casings in a vessel, as the vertical one above the slot for a centerboard in the bottom of a boat.

(22) A long tube through which pellets of clay, peas etc are driven by the force of the breath; a peashooter (archaic).

(23) In software engineering, the most current source tree, from which the latest unstable builds (so-called “trunk builds”) are compiled.

1400–1450: From the late Middle English tronke & trunke, from the Old French tronc (alms box, tree trunk, headless body), from the Latin truncus (stem, a stock, lopped tree trunk), a noun use of the adjective truncus (lopped; cut off, maimed, mutilated), (the later related to the English truncated).  Trunk & trunking are nouns & verbs, trunkful is a noun, trunked is a verb & adjective and trunkless is an adjective; the noun plural is trunks.

There are a myriad of “truck” terms in human pathology and other derived phrases include “elephant's trunk” (rhyming slang for “drunk”), “hand trunk” (a piece of luggage smaller than the traditional trunk and able to be carried by one), “junk in one's trunk” (corpulence of the buttocks, the alternative forms being “dump truck” or the vernacular “fat ass”), “the apple does not fall far from the trunk” (a variant of “the apple/pear etc does not fall far from the tree”) (children tend in appearance & characteristics to resemble their parents), “trunklid” (literally obviously “the lid of a trunk” and used of the opening panel which provides access to a car’s trunk), “bootlid” the UK equivalent and confusingly in the US used also as “decklid” on the basis of the trunk being a part of a car’s “rear deck”), “trunk novel” (a novel abandoned by the author while still a project), “trunk or treat” (an organized alternative to trick-or-treating where candy is handed out to children from cars in a parking lot; it was introduced as a child safety measure), “trunk show” (an event in which vendors present merchandise directly to store personnel or customers at a retail location or other venue, based on the idea of selling “out of a trunk”), “trunk sale” (and event at which goods are displayed for sale in the trunks of cars), “boot sale” the companion term)), “trunking” (travelling sitting in the trunk of a car”), and “trunk shot” (in film-making, a cinematic shot from within a car trunk (although there was a case of a serial killer who shot his victims while concealed in the trunk of a car.

Louis Vuitton Trunk #5 (left) and Louis Vuitton Trunk on Fire (right) by Tyler Shields (b 1982).

The original idea of a trunk being a “box; case etc” may lie in the first such “trunks” being hollowed-out tree trunks although some suggest the post-classical development of the meaning “box, case with a lid or top” was based on the notion of human body’s trunk being a “case” in which the organs were transported.  The modern idea of a “luggage compartment of a motor vehicle” dates from circa 1930, about the time trunks cease to be something separately carried and replaced by and space for luggage integrated into the bodywork.  The use of trunk had long been familiar in the medical literature (both of the torso and blood vessels etc) and the idea was by 1843 extended to railroad trunk lines and telephone networks by 1889.  “Trunk-hose” were first sold in the 1630s and seems to have been a kind of thermal underwear, the description a reference to them covering the whole torso (ie, the trunk) as opposed to most “hose” which was for the lower limbs.

The use of trunk to describe the “long snout of an elephant (or other beast with a similar appendage)” appeared first in the 1560s but etymologists are divided on whether it was an allusion to a tree’s trunk or has some connection with “trumpet”, based on the loud sound elephants are able to generate although the evidence does suggest the early use as a reference to the thing’s ability to hold water.  Predictably, by the early eighteenth century, it was a slang term for the human nose.  The use in clothing (always in the plural as “trunks”) emerged in the mid 1820s and initially described “short breeches of thin material”; it was a use of trunk in the sense of “torso”.  Use began in theatrical jargon but, as was not uncommon, soon it was applied to breeches generally, especially in US English and for the short, tight-fitting breeches worn by swimmers and other sporting types, adoption was close to universal by the 1890s.  “Swimming trunks” has survived as a regionalism; even within the one country, there are often several different names for what is one of humanity’s most simple garments.

Trump Trunks: MAGA (Make America Great Again) swimming trunks.  Trump trunks are made from a “silky, breathable, 4-way stretch mesh fabric” and features include (1) a small internal pocket, (2) a built-in anti-chafe liner.  The country of manufacture is not disclosed.  Clearly, the DNC (Democratic National Committee) in 2016 missed an opportunity by failing to release the "Crooked Hillary Clinton Bikini".

One linguistic curiosity was “subscriber trunk dialing” (later changed to “subscriber toll dialing” which later still switched to DDD (Direct Distance Dialing).  The “other” use of STD was as “sexually transmitted disease”, previously known as VD (venereal disease) and it wasn’t until the 1970s the initialism VD began to be replaced by STD (VD thought to have to have gained too many specific associations) but fortunately for AT&T, in 1951 they renamed their STD service (for long-distance phone calls) to DDD, apparently for no better reason than the alliterative appeal although it's possible they just wanted to avoid mentioning “toll” with all that implies.  Many countries in the English-speaking world continued to use STD for the phone calls, even after the public health specialists had re-purposed the initialization.  In clinical use, STI “Sexually Transmitted Infection” seems now the preferred term).

The evolution of the trunk: 1851 Concord stagecoach on display at the Smithsonian's National Postal Museum, Washington DC (left) with truck strapped to the back, additional trunks carried on the roof; 1928 Mercedes-Benz Nürburg 460 K Pullman Limousine (W08, centre left) with separate trunk still carried on a rear frame; 1936 Studebaker Dictator 4-door sedan (centre right) with the trunk now an integrated part of the bodywork; The US full-sized cars of the era had most capacious trunks but few could match Leyland Australia's infamous P76 (1973-1975, right) which effortlessly could carry a 44 (imperial) gallon (209 litre) drum.

The compartment which is most located in the rear coachwork of an automobile is used for luggage and historically also the spare tyre a toolkit (neither now not always supplied).  In North American use, this is called a “trunk”, an inheritance from the time when the passengers’ trunks (ie, in the sense of the box-like suitcases) were strapped on to an extension at the back of horse-drawn carriages.  In the early automobiles, the practice continued (often with lined wicker baskets because they were of lightweight construction) and when these were integrated into the bodywork, the space provided continued to be called “the trunk”.  The British called the same thing a “boot”.  In horse-drawn carriages in the UK, a “boot” was a compartment used to store travel essentials, among which (in an age of rutted, poorly maintained roads) included boots, the male passengers sometimes required to push the coach when it became stuck in mud, the frequent inclusion of a “boot box” or “boot locker”, made typically of leather and attached at the rear.  The other suggested origin is the French boute (compartment; box).  The term “boot” thus spread throughout the British Empire although, under the Raj, in India & Ceylon (later Sri Lanka) it became the “dickie”.  That was based on the dicky seat (also as “dickie seat” & “dickey seat” and later more commonly known as the “rumble seat”), an upholstered bench mounted at the rear of a coach, carriage or early motorcar and as the car industry evolved and coachwork became more elaborate, increasingly they folded into the body.  The size varied but generally they were designed to accommodate one or two adults although the photographic evidence suggests they could be used also to seat half-a-dozen or more children.  Why it was called a dicky seat is unknown (the word dates from 1801 and most speculation is in some way related to the English class system) but when fitted on horse-drawn carriages it was always understood to mean “a boot (box or receptacle covered with leather at either end of a coach, the use based on the footwear) with a seat above it for servants”.  Under the Raj, “dickie” was preferred while the colloquial “mother-in-law seat” was at least trans-Atlantic and probably global.

Lindsay Lohan illustrates how there are frunks and there are trunks.

The rear-engined Porsche 911 Carrera (997, 2004-2013) Cabriolet (Los Angeles, 2012, right) has a frunk while the front-engined Mercedes-Benz SL 65 AMG roadster (Los Angeles,  2005, right) has a trunk.  Based on the R230 (2001-2011) platform, the SL 65 AMG was produced between 2004-2012 and Ms Lohan also later drove an SL 550 (2006-2011), a model which was a quirk in the naming system because the designation was exclusive to the the North American market, the RoW (rest of the world) cars retaining the SL 500 badge even though both used the 5.5 litre (333 cubic inch) V8 (M273).  As the SL 65's open trunk lid reveals (right), because of the need to accommodate the bulky, folding aluminium hard-top, when lowered, it absorbed most of the trunk space so the design, like many, involved a trade-off between what was gained and what was lost.

The Fiat X1/9 (produced by Fiat 1972–1982 and Bertone from 1982–1989) featured both a frunk (left) and a trunk (right).

Most cars built have had the engine mounted in the front, thus most trunks appeared in the rear bodywork.  There have however been cars with engines behind the driver (such things were quite numerous until well into the 1970s) and these usually had a storage compartment at the front (where the engine otherwise would sit, under the hood (bonnet)).  Until the early years of the twentieth century, these seem just to have been called a “trunk” or “boot” but as electric vehicles began to appear in volume “frunk” (the construct being f(ront) + (t)runk) and the less popular “froot” (the construct being fr(ont) + (b)oot)) came into use.  There have been mid-engined cars which have both a trunk and a frunk and those in the diminutive Fiat X1/9 were surprisingly large while others (such as Ferrari's Dino 308 GT4 (1973-1980) & 208 GT4 (1975-1980), both badged as Ferraris after 1976) were of a less generous capacity, the frunk in the Dinos best suited to storing something the size of a topless bikini but it was a genuine four-seater (2+2), something not often attempted with the mid-engined configuration.

When there was no trunk lid, luggage racks were a popular fitting: 1959 Austin-Healey Sprite (left) and 1971 Chevrolet Corvette Convertible LS5 454/365 (right).

There have been cars (and not all of them were sports cars) with no trunk lid.  In the case of the Austin-Healey Sprite (1958-1971), the lack of the structure on the early versions (1958-1961) was a cost-saving measure (the same rationale that saw the planned retractable headlights replaced by the distinctive protuberances atop the hood (bonnet) which lent the cheerful little roadster its nickname (bugeye in North American and frogeye in the UK & most of the Commonwealth).  It had additional benefits including weight reduction and improved structural rigidity but the obvious drawback was inconvenience: to use the trunk one had to reach through the gap behind the seats.  It was easy to see why luggage racks proved a popular accessory, sales of which continued to be strong even when later versions of the Sprite (1961-1971) and the badge-engineered companion model (the MG Midget (1961-1980)) gained a trunk lid.

Have trunk, can travel: Nor Cal’s (of Stockton, California) trunk lid kit for Austin Healy Sprite, May 1961.  Note the standard-sized registration plate; the Sprite really was small.

However, noting Austin-Healey’s cost-cutting meant the Series 1 Sprite’s trunk came lidless, modern commerce quickly saw a gap (technically also a “lack of gap”) in the market and “lid kits” soon appeared.  Advertised as meaning “no more acrobatic maneuvers when loading luggage”, mention was made also of an installation making the spare tyre easier to reach, a matter in the early 1960s of some significance because tyres then were not as durable and punctures more frequent.  The advertising copy was selective in that it mentioned “no welding necessary” but neglected to point out an owner would need to cut the required hole but presumably, that would have been obvious.  It was a proper trunk lid in that it was lockable and said also to be “waterproof”, the latter a quality owners of British sports cars really didn’t expect so the novelty would have been a selling point.  For those Sprite owners whose family had gained a child, the improved accessibility to the trunk would have been most helpful because, as parents know, going anywhere with an infant requires carrying a large bag of stuff.  They might also have been attracted to the "baby seat" available as an accessory from the Healey factory; it was a design which would now be thought extraordinary (other words also come to mind) but it was at the time just the way things were done.  

1963 Corvette (C2) Coupe. This was one of GM's official publicity stills and one can see why the decision was taken not to include a trunk lid but the absence enhanced structural integrity and it was this Chevrolet chose to emphasize.

Curiously, between 1953-1962, the Chevrolet Corvette (C1) did have a trunk lid but when the second generation (C2, 1962-1967) was released for the 1963 model year, it had been removed and not until the fifth generation (C5) in 1998 did one again appear.  By then, the Corvette's luggage rack moment mostly had passed but into the twenty-first century they were still being fitted.  In the modern collector market, it’s one of those accessories, the very sight of which seems to upset some.

Trunks: The long and short of it.

1968 Holden HK Brougham (left) and 1970 Holden Premier (right).

The Holden Brougham (1968-1971) was not so much a landmark of the era as a cul-de-sac but it did indicate how quickly the “brougham” label had come to be associated with prestige and like Chevrolet’s Caprice, the Brougham was a response to a Ford.  In Australia, Ford had been locally assembling the full-sized Galaxies for the government and executive markets but tariffs and the maintenance of the Australian currency peg at US$1.12 meant profitability was marginal, so the engineers (with a budget said to be: "three-quarters of four-fifths of fuck all") took the modest, locally made Falcon, stretched the wheelbase by five inches (125 mm), tweaked the front and rear styling (which although hardly radical resulted in a remarkably different look), added some bling and named it Fairlane.

The Fairlane name was chosen because of the success the company had had in selling first the full-sized US Fairlanes (nicknamed by locals as the “tank Fairlane”) between 1959-1962 and later the smaller version (1962-1965) which Robert McNamara (1916–2009 and briefly the president of Ford Motor Company before serving as US secretary of defense (1961-1968) under John Kennedy (JFK, 1917–1963; US president 1961-1963) & Lyndon Johnson (LBJ, 1908–1973; US president 1963-1969)) describes as "the size of car Americans should be driving".  In that McNamara was right and what came in the 1960s to be called the "intermediates" (ie between the "compact" & "full-size" lines) proved a sweet spot in the market and that was because they were essentially the size of the "standard" US automobile before the breed became oversized in the mid-late 1950s.  The Australia Fairlane was for decades a successful and profitable product and eventually Holden (General Motors's (GM) local outpost) followed the formula but not before the curious diversion which was the Brougham.  For 1968, Holden chose what even at the time was thought a bizarre approach in trying to match the Fairlane; instead of a longer wheelbase (and thus more interior space), the Brougham was conjured up by extending the tail of the less exalted Premier by 8 inches (200 mm), the strange elongation a hurried and less than successful response.  Unwanted for decades when the could be bought for Aus$250, the handful of surviving Broughams became twenty-first century collectables, advertised for sale at as much as $Aus$90,000, some Holden connoisseurs (as one-eyed a crew as any) even finding a previously undetected elegance in the lines.

1958 Cadillac Series 62 Extended Length Sedan (Body Style 6239EDX, left) and 1958 Cadillac Series 62 Sedan (Body Style 6239, right).

In their defense, Holden could have pointed to a corporate precedent, the 1958 Cadillac range including the “Series 62 Extended Length Sedan”.  The Series 62 Sedan was already an impressive 216.8 inches (5.5 m) long but the Extended Length version measured an even more imposing 225.3 (5.7), the additional 8.5 inches (216 mm) all in the rear deck, creating a more capacious trunk.  There can’t have been many Cadillac buyers with that much luggage and the new model didn’t gain many sales although there was a healthy industry in jokes about Mafia functionaries and other figures in organized crime grateful finally to have more space to transport the bodies.  Unfortunately for Cadillac, there were only so many Mafia hit-men and despite 20,952 of the 103,455 (excluding Eldorados and “chassis only” sales) Series 62s produced in 1958 being the Extended Length Sedan (some 20%), it proved a single-season one-off which perhaps should have warned Holden.

Cadillac's other take on the “long & slightly less long” of it: 1963 Cadillac Four-Window Sedan De Ville (Body Style 6239, left) and 1963 Cadillac Sedan De Ville Park Avenue (Body Style 6389, right).

Strangely, Cadillac’s next venture in rear-deck management went the other way, “short deck” versions of certain models offered between 1961-1963, the things created by removing 7 inches (178 mm) of aft bodywork, the effect more noticeable for the final season when the truncation was 8 inches (203 mm).  Demand, anyway muted, quickly declined and there ended Cadillac’s experiments with rear deck length.  There was at the time much criticism that “full-size” US cars had become too big but the “short deck” venture was most un-Cadillac like and, by international standards, the truck capacity of even the abbreviated models was still quite generous, able effortlessly to accommodate two sets of gold clubs, something which later became a de-facto standard in assessing the practicality of sports cars.  Jaguar used this feature as a selling point when the XK8 (1996-2006) was introduced because it wasn’t possible with all versions of the old E-Type (1961-1974).

1967 Ford GT40 Mark III (left) and 1967 Ford GT40 Mark I (road version, right).

From 1967 there was also a more contemporary example to inspire the antipodean engineers although it’s unlikely it much caught their eye; that was the Ford GT40 (1964-1969), one of the most successful machines in 1960s sports car racing which beat not only the competition but also the attempts by the Fédération Internationale de l'Automobile (the FIA; the International Automobile Federation) to legislate it into un-competitiveness,  Then (as now), the FIA was international sport’s dopiest regulatory body.  In the happy era when it was possible to make a few minor modifications and register a Le Mans race car for the road, 31 of the 105 GT40s were so configured (even a cigarette lighter was installed) but the driving experience was still very much that of a (slightly) quieter race car, the accommodation cramped, the ventilation marginal and the luggage space fit for little more than a topless bikini.  But some hardly souls bought them because there were few things on the road faster so thoughts turned to making a “more civilized” version with the creature comforts now expected.  Thus the 1967 GT40 Mark III with a slightly detuned engine, improved ventilation, a conventional, centrally mounted gear shift, sound deadening, more compliant suspension settings and even a reasonably sized ashtray to compliment the cigarette lighter.  However, only seven were built because they cost as much as a middle-class house, were still cramped (with challenging ingress and egress for all but the young or athletic) and in appearance differed in several aspects from the cheaper (Mark I) GT40 road cars still available from John Wyer (1909–1989).  By virtue of the long tail, the Mark III did though have more luggage space (for soft baggage rather than suitcases) and it appealed to some, the most famous purchaser being the Austrian conductor Herbert von Karajan (1908–1989) who, wisely, never drove his on wet roads.

Malachite

Malachite (pronounced mal-uh-kahyt)

(1) In mineralogy, a bright-green monoclinic mineral, occurring as a mass of crystals (an aggregate).  It manifests typically with a smooth or botryoidal (grape-shaped) surface and, after cutting & polishing, is used in ornamental articles and jewelry.  It’s often concentrically banded in different shades of green, the contrast meaning that sometimes lends the substance the appearance of being a variegated green & black.  Malachite is found usually in veins in proximity to the mineral azurite in copper deposits.  The composition is hydrated copper carbonate; the chemical formula is Cu₂CO₃(OH)₂ and the crystal structure is monoclinic.

(2) A ceramic ware made in imitation of this (in jewelry use, “malachite” is used often as a modifier).

(3) In mineralogy, as pseudomalachite, a mineral containing copper, hydrogen, oxygen, and phosphorus.

(4) In mineralogy, as azurite-malachite, a naturally-occurring mixture of azurite and malachite

(5) In organic chemistry, as malachite green, a toxic chemical used as a dye, as a treatment for infections in fish (when diluted) and as a bacteriological stain.

(6) Of a colour spectrum, ranging from olive-taupe to a mild to deeply-rich (at times tending to the translucent) green, resembling instances in the range in which the mineral is found.  In commercial use, the interpretation is sometimes loose and some hues are also listed as “malachite green”).

1350-1400: From the Middle French malachite, from the Old French, from the Latin molochītēs, from the Ancient Greek malachitis (lithos) (mallow (stone)) & molochîtis (derivative of molóchē, a variant of maláchē), from μολόχη (molókhē) (mallow; leaf of the mallow plant).  It replaced the Middle English melochites, from the Middle French melochite, from the Latin molochītis.  Malachite is a noun & adjective; the noun plural is malachites.

A pair of Malachite & Onyx inlay cufflinks in 925 Sterling Silver (ie 92.5% pure silver & 7.5% other metals), Mexico, circa 1970.

Although in wide use as a gemstone, technically malachite is copper ore and thus a “secondary mineral” of copper, the stone forming when copper minerals interact with different chemicals (carbonated water, limestone et al.  For this reason, geologists engaged in mineral exploration use malachite as a “marker” (a guide to the likelihood of the nearby presence of copper deposits in commercial quantities).  It’s rare for malachite to develop in isolation and it’s often found in aggregate with azurite, a mineral of similar composition & properties.  Visually, malachite & azurite are similar in their patterning and distinguished by color; azurite a deep blue, malachite a deep green.  Because the slight chemical difference between the two makes azurite less stable, malachite does sometimes replace it, resulting in a “pseudomorph”.  Although there is a range, unlike some minerals, malachite is always green and the lustrous, smooth surface with the varied patterning when cut & polished has for millennia made it a popular platform for carving, the products including al work, jewelry and decorative pieces.  For sculptors, the properties of malachite make it an easy and compliant material with which to work and it’s valued by jewelers for its color-retention properties, the stone (like many gemstones) unaffected by even prolonged exposure to harsh sunlight.  Despite the modern association of green with the emerald, the relationship between mankind & malachite is much more ancient. evidence of malachite mining dating from as early as 4000 BC found near the Isthmus of Suez and the Sinai whereas there’s nothing to suggest the emerald would be discovered until Biblical times, some two millennia later.

Lindsay Lohan in malachite green, this piece including both the darker and lighter ends of the spectrum.

The Malachite is relatively soft meant it was easy to grind into a powder even with pre-modern equipment; it was thus used to create what is thought to be the world’s oldest green pigment (described often as chrysocolla or copper green).  In Antiquity, the dye was so adaptable it was used in paint, for clothing and Egyptians (men & women) even found it was the ideal eye makeup.  Use persisted until oil-based preparations became available in quantity and these were much cheaper because of the labor-intensive grinding processes and the increasing price of malachite which was in greater demand for other purposes.  This had the side-effect of creating a secondary market for malachite jewelry and other small trinkets because the fragments and wastage from the carving industry (once absorbed by the grinders for the dye market) became available.  The use in makeup wasn’t without danger because, as a copper derivate, raw malachite is toxic; like many minerals, the human body needs a small amount of copper to survive but in high doses it is a poison’ in sufficient quantities, it can be fatal.  Among miners and process workers working with the ore, long-term exposure did cause severe adverse effects (from copper poisoning) so it shouldn’t be ingested or the dust inhaled.  Once polished, the material is harmless but toxicology specialists do caution it remains dangerous if ingested and any liquid with which it comes in contact should not be drunk.  Despite the dangers, the mineral has long been associated with protective properties, a belief not restricted to Antiquity or the medieval period; because the Enlightenment seems to have passed by New Agers and others, malachite pendants and other body-worn forms are still advertised with a variety of improbable claims of efficacy.

The Malachite Room of the Winter Palace, St Petersburg, Russia was, during the winter of 1838-1839, designed as a formal reception room (a sort of salon) for the Tsar & Tsarina by the artist Alexander Briullov (1798–1877), replacing the unfortunate Jasper Room, destroyed in the fire of 1837.  It’s not the only use of the stone in the palace but it’s in the Malachite Room where a “green theme” is displayed most dramatically, the columns and fireplace now Instagram favorites, as is the large large urn, all sharing space with furniture from the workshops of Peter Gambs (1802-1871), those pieces having been rescued from the 1837 fire.  Between June-October 1971 it was in the Malachite Room that the Provisional Government conducted its business until the representatives were arrested by Bolsheviks while at dinner in the adjoining dining room.  The putsch was denounced by the Mensheviks who the Bolsheviks finally would suppress in 1921.

Polished malachite pieces from the Congo, offered on the Fossilera website.

Where there is demand for something real, a supply of a imitation version will usually emerge and the modern convention is for items erroneously claiming to be the real thing are tagged “fake malachite” while those advertised only as emulation are called “faux malachite”.  Although not infallible, the test is that most fake malachite stones are lighter than the real thing because, despite being graded as “relatively soft” by sculptors, the stone is of high in density and deceptively heavy.  The patterning of natural malachite is infinitely varied while the synthetic product tends to some repetition and is usually somewhat brighter.  The density of malachite also lends the stone particular thermal properties; it’s inherently cold to the touch, something which endures even when a heat source is applied.  Fake malachite usually is manufactured using glass or an acrylic, both of which more rapidly absorb heat from the hand.

Lindsay Lohan with Rolex Datejust in stainless steel with silver face (left) and the Rolex's discontinued "malachite face" (centre & right).  Well known for its blue watch faces, during the more exuberant years of the 1970s & 1980s the company “splashed out” a bit and offered a malachite face.  The Datejust is now available with a choice of nine faces but the Green one is now a more restrained hue the company calls “mint green”.

Reduction

Reduction (pronounced ri-duhk-shuhn)

(1) The act of reducing or the state of being reduced.

(2) The amount by which something is reduced or diminished.

(3) The form (result) produced by reducing a copy on a smaller scale (including smaller scale copies).

(4) In cell biology, as meiosis, especially the first meiotic cell division in which the chromosome number is reduced by half.

(5) In chemistry, the process or result of reducing (a reaction in which electrons are gained and valence is reduced; often by the removal of oxygen or the addition of hydrogen).

(6) In film production when using physical film stock (celluloid and such), the process of making a print of a narrower gauge from a print of a wider gauge (historically from 35 to 16 mm).

(7) In music, a simplified form, typically an arrangement for a smaller number of parties  such as an orchestral score arranged for a solo instrument.

(8) In computability theory, a transformation of one problem into another problem, such as mapping reduction or polynomial reduction.

(9) In philosophy (notably in phenomenology), a process intended to reveal the objects of consciousness as pure phenomena.

(10) In metalworking, the ratio of a material's change in thickness compared to its thickness prior to forging and/or rolling.

(11) In engineering, (usually as “reduction gear”), a means of energy transmission in which the original speed is reduced to whatever is suitable for the intended application.

(12) In surgery, a procedure to restore a fracture or dislocation to the correct alignment, usually with a closed approach but sometimes with an open approach.

(13) In mathematics, the process of converting a fraction into its decimal form or the rewriting of an expression into a simpler form.

(14) In cooking, the process of rapidly boiling a sauce to concentrate it.

(15) During the colonial period, a village or settlement of Indians in South America established and governed by Spanish Jesuit missionaries.

1475–1485: From the Middle English reduccion, from the earlier reduccion, from the Middle French reduction, from the Latin reductiōnem & reductiōn- (stem of reductiō (a “bringing back”)) the construct being reduct(us) (past participle of redūcere (to lead back) + -iōn- (the noun suffix).  The construct in English was thus reduc(e), -ion.  Reduce was from the Middle English reducen, from the Old French reduire, from the Latin redūcō (reduce), the construct being re- (back) + dūcō (lead).  The –ion suffix was from the Middle English -ioun, from the Old French -ion, from the Latin -iō (genitive -iōnis).  It was appended to a perfect passive participle to form a noun of action or process, or the result of an action or process.  Reduction, reductivism, reductionistic & reductionism are nouns, reductionist is a noun & adjective, reductional & reductive are adjectives; the noun plural is reductions.  Forms like anti-reduction, non-reduction, over-reduction, pre-reduction, post-reduction, pro-reduction, self-reduction have been created as required.

Actor Ariel Winter (b 1998), before (left) and after (right) mammaplasty (breast reduction).  Never has satisfactorily it been explained why this procedure seems to be lawful in all jurisdictions.

In philosophy & science, reductionism is an approach used to explain complex phenomena by reducing them to their simpler, more fundamental components.  It posits that understanding the parts of a system and their interactions can provide a complete explanation of the system as a whole an approach which is functional and valuable is some cases and to varying degrees inadequate in others.  The three generally recognized classes of reductionism are (1) Ontological Reductionism, the idea that reality is composed of a small number of basic entities or substances, best illustrated in biology where life processes are explained by reducing things to the molecular level.  (2) Methodological Reductionism, an approach which advocates studying systems by breaking into their constituent parts, much used in psychology where it might involve studying human behavior by examining neurological processes.  (3) Theory Reductionism which involves explaining a theory or phenomenon in one field by the principles of another, more fundamental field as when chemistry is reduced to the physics or chemical properties explained by the operation of quantum mechanics.  Reduction has been an invaluable component in many of the advances in achieved in science in the last two-hundred-odd years and some of the process and mechanics of reductionism have actually been made possible by some of those advances.  The criticism of an over-reliance on reductionism in certain fields in that its very utility can lead to the importance of higher-level structures and interactions being overlooked; there is much which can’t fully be explained by the individual parts or even their interaction.  The diametric opposite of reductionism is holism which emphasizes the importance of whole systems and their properties that emerge from the interactions between parts.  In philosophy, reductionism is the position which holds a system of any level of complexity is nothing but the sum of its parts and an account of it can thus be reduced to accounts of individual constituents.  It’s very much a theoretical model to be used as appropriate rather than an absolutist doctrine but it does hold that phenomena can be explained completely in terms of relations between other more fundamental phenomena: epiphenomena.  A reductionist is either (1) an advocate of reductionism or (2) one who practices reductionism.

Reductionism: Lindsay Lohan during "thin phase".

The adjective reductive has a special meaning in Scots law pertaining to reduction of a decree or other legal device (ie something rescissory in its effect); dating from the sixteenth century, it’s now rarely invoked.  In the sense of “causing the physical reduction or diminution of something” it’s been in use since the seventeenth century in fields including chemistry, metallurgy, biology & economics, always to convey the idea of reduces a substance, object or some abstract quantum to a lesser, simplified or less elaborated form.  At that time, it came to be used also to mean “that can be derived from, or referred back to; something else” and although archaic by the early 1800s, it existence in historic texts can be misleading.  It wasn’t until after World War II (1939-1945) that reductive emerged as a derogatory term, used to suggest an argument, issue or explanation has been “reduced” to a level of such simplicity that so much has been lost as to rob things of meaning.  The phrase “reductio ad absurdum” (reduction to the absurd) is an un-adapted borrowing from the Latin reductiō ad absurdum, and began in mathematics, logic (where it was a useful tool in deriving proofs in fields like).  In wider use, it has come to be used of a method of disproving a statement by assuming the statement is true and, with that assumption, arriving at a blatant contradiction; the synonyms are apagoge & “proof by contradiction”.

Single-family houses (D-Zug) built in 1922 on the principle of architectural reductionism by Heinrich Tessenow in collaboration with Austrian architect Franz Schuster (1892–1972), Moritzburger Weg 19-39 (the former Pillnitzer Weg), Gartenstadt Hellerau, Dresden, Germany.

As a noun, a reductivist is one who advocates or adheres to the principles of reductionism or reductivism.  In art & architecture (and some aspects of engineering) this can be synonymous with the label “a minimalist” (one who practices minimalism).  As an adjective, reductivist (the comparative “more reductivist”, the superlative “most reductivist”) means (1) tending to reduce to a minimum or to simplify in an extreme way and (2) belonging to the reductivism movement in art or music.  The notion of “extreme simplification” (a reduction to a minimum; the use of the fewest essentials) has always appealed some and appalled others attracted to intricacy and complexity.  The German architect Professor Heinrich Tessenow (1876-1950) summed it up in the phrase for which he’s remembered more than his buildings: “The simplest form is not always the best, but the best is always simple.”, one of those epigrams which may not reveal a universal truth but is probably a useful thing to remind students of this and that lest they be seduced by the process and lose sight of the goal.  Tessenow was expanding on the principle of Occam's Razor (the reductionist philosophic position attributed to English Franciscan friar & theologian William of Ockham (circa 1288–1347) written usually as Entia non sunt multiplicanda praeter necessitatem (literally "Entities must not be multiplied beyond necessity" which translates best as “the simplest solution is usually the best”.

Reductio in extrema

1960 Lotus Elite Series 1 (left) and at the Le Mans 24 Hour endurance classic, June 1959 (left) Lotus Elite #41 leads Ferrari 250TR #14. The Ferrari (DNF) retired after overheating, the Elite finishing eighth overall, winning the 1.5 litre GT class.

Weighing a mere 500-odd kg (1100 lb), the early versions of the exquisite Lotus Elite (1957-1963) enchanted most who drove it but the extent of the reductionism compromised the structural integrity and things sometimes broke when used under everyday conditions which of course includes potholed roads.  Introduced late in 1961 the Series 2 Elite greatly improved this but some residual fragility was inherent to the design.  On the smooth surfaces of racing circuits however, it enjoyed an illustrious career, notable especially for success in long-distance events at the Nürburgring and Le Mans.  The combination of light weight and advanced aerodynamics meant the surprisingly powerful engine (a lightweight and robust unit which began life powering the water pumps of fire engines!) delivered outstanding performance, frugal fuel consumption and low tyre wear.  As well as claiming five class trophies in the Le Mans 24 hour race, the Elite twice won the mysterious Indice de performance (an index of thermal efficiency), a curious piece of mathematics actually intended to ensure, regardless of other results, a French car would always win something.

Colin Chapman (1928–1982), who in 1952 founded Lotus Cars, applied reductionism even to the Tessenow mantra in his design philosophy: “Simplify, then add lightness.”  Whether at the drawing board, on the factory floor or on the racetrack, Chapman seldom deviated from his rule and while it lent his cars sparking performance and delightful characteristics, more than one of the early models displayed an infamous fragility.  Chapman died of a heart attack which was a good career move, given the likely legal consequences of his involvement with John DeLorean (1925–2005) and the curious financial arrangements made with OPM (other people's money) during the strange episode which was the tale of the DMC DeLorean gullwing coupé.

1929 Mercedes-Benz SSKL blueprint (recreation, left) and the SSKL “streamliner”, AVUS, Berlin, May 1932 (right).

The Mercedes-Benz SSKL was one of the last of the road cars which could win top-line grand prix races.  An evolution of the earlier S, SS and SSK, the SSKL (Super Sports Kurz (short) Leicht (light)) was notable for the extensive drilling of its chassis frame to the point where it was compared to Swiss cheese; reducing weight with no loss of strength.  The SSK had enjoyed success in competition but even in its heyday was in some ways antiquated and although powerful, was very heavy, thus the expedient of the chassis-drilling intended to make it competitive for another season.  Lighter (which didn't solve but at least to a degree ameliorated the high tyre wear) and easier to handle than the SSK (although the higher speed brought its own problems, notably in braking), the SSKL enjoyed a long Indian summer and even on tighter circuits where its bulk meant it could be out-manoeuvred, sometimes it still prevailed by virtue of sheer power.  By 1932 however the engine’s potential had been reached and no more metal could be removed from the structure without dangerously compromising safety; in engineering (and other fields), there is a point at which further reduction becomes at least counter-productive and often dangerouw.  The solution was an early exercise in aerodynamics (“streamlining” the then fashionable term), an aluminium skin prepared for the 1932 race held on Berlin’s AVUS (Automobil-Versuchs und Übungsstraße (automobile traffic and practice road)).  The reduction in air-resistance permitted the thing to touch 255 km/h (158 mph), some 20 km/h (12 mph) more than a standard SSLK, an increase the engineers calculated would otherwise have demanded another (unobtainable) 120 horsepower.  The extra speed was most useful at the unique AVUS which comprised two straights (each almost six miles (ten kilometres) in length) linked by two hairpin curves, one a dramatic banked turn.  The SSKL was the last of the breed, the factory’s subsequent Grand Prix machines all specialized racing cars.

Reduction gears: Known casually as "speed reducers", reduction gears are widely used in just about every type of motor and many other mechanical devices.  What they do is allow the energy of a rotating shaft to be transferred to another shaft running at a reduced speed (achieved usually by the use of gears (cogs) of different diameters.

In chemistry, a reduction is the process or result of reducing (a reaction in which electrons are gained and valence is reduced; often by the removal of oxygen or the addition of hydrogen) and as an example, if an iron atom (valence +3) gains an electron, the valence decreases to +2.  Linguistically, it’s obviously counterintuitive to imagine a “reduced atom” is one which gains rather than loses electrons but the term in this context dates from the early days of modern chemistry, where reduction (and its counterpart: “oxidation”) were created to describe reactions in which one substance lost an oxygen atom and the other substance gained it.   In a reaction such as that between two molecules of hydrogen (2H₂)and one of oxygen (O₂) combining to produce two molecules of water (2H₂O), the hydrogen atoms have gained oxygen atoms and were said to have become “oxidized,” while the oxygen atoms have “lost them” by attaching themselves to the hydrogens, and were thus “reduced”.  Chemically however, in the process of gaining an oxygen atom, the hydrogen atoms have had to give up their electrons and share them with the oxygen atoms, while the oxygen atoms have gained electrons, thus the seeming paradox that the “reduced” oxygen has in fact gained something, namely electrons.

Secretary of Defence the younger (left) and elder (right).  Donald Rumsfeld (left) with Gerald Ford (1913–2006; US president 1974-1977) and George W Bush (George XLIII, b 1946; US president 2001-2009).

Donald Rumsfeld (1932–2021; US Secretary of Defense 1975-1977 & 2001-2006) may or may not have been evil but his mind could sparkle and his marvellously reductionist principles can be helpful.  His classification of knowledge was often derided but it remains a useful framework:

(1) Known unknowns.
(2) Known knowns.
(3) Unknown unknowns.
(4) (most intriguingly) Unknown knowns.

A expert reductionist, he reminded us also there are only three possible answers to any question and while there's a cultural reluctance to say “don’t know”, sometimes it is best:

(1) I know and I’m going to tell you.
(2) I know and I’m not going to tell you.
(3) Don’t know.

While (1) known unknowns, (2) known knowns and (3) unknown unknowns are self-explanatory, examples of (4) unknown knowns are of interest and a classic one was the first “modern” submarine, developed by the Germans during the last months of World War II (1939-1945).

German Type XII Elektroboot (1945).

In World War II, the course of the war could have been very different had OKM (Oberkommando der Marine (the Kriegsmarine's (German Navy) high command)) followed the advice of the commander of the submarines and made available a fleet of 300 rather than building a surface fleet which wasn’t large enough to be a strategic threat but of sufficient size to absorb resources which, if devoted to submarines, could have been militarily effective.  With a fleet of 300, it would have been possible permanently to maintain around 100 at sea but at the outbreak of hostilities, only 57 active boats were on the navy’s list, not all of which were suitable for operations on the high seas so in the early days of the conflict, it was rare for the Germans to have more than 12 committed to battle in the Atlantic.  Production never reached the levels necessary for the numbers to achieve critical mass but even so, in the first two-three years of the war the losses sustained by the British were considerable and the “U-Boat menace” was such a threat that much attention was devoted to counter-measures and by 1943 the Allies could consider the battle of the Atlantic won.  The Germans’ other mistake was not building a true submarine capable of operating underwater (and therefore undetected) for days at a time.

It was only in 1945 when Albert Speer (1905–1981; Nazi court architect 1934-1942; Nazi minister of armaments and war production 1942-1945) and Grand Admiral Karl Dönitz (1891–1980; head of the German Navy 1943-1945, German head of state 1945) were assessing the “revolutionary” new design that they concluded there was no reason why such craft couldn’t have been built in the late 1930s because the engineering capacity and technology existed even then (although the industrial and labor resources did not).  It was a classic case of what Donald Rumsfeld (1932–2021: US defense secretary 1975-1977 & 2001-2006) would later call an “unknown known”: The Germans in 1939 knew how to build a modern submarine but didn’t “know that they knew”.  Despite the improvements however, military analysts have concluded that even if deployed in numbers, such was the strength of forces arrayed against Nazi Germany that by 1945, not even such a force could have been enough to turn the tide of war.  However, had the German navy in 1939-1940 had available a fleet of even 100 such submarines (about a third what OKM (Oberkommando der Marine (the Kriegsmarine's (German Navy) high command) calculated was the critical strategic size given at any point only a third would be at sea with the others either in transit or docked), the battle in the Atlantic would have been much more difficult for the British.

Mr Rumsfeld however neglected to mention another class of knowledge: the “lost known”, examples of which have from time-to-time appeared and there may be more still to be discovered.  The best known were associated with the knowledge lost after the fall in the fifth century of the Western Roman Empire when Europe entered the early medieval period, once popularly known as the “Dark Ages”.  The lost knowns included aspects of optics such as lens grinding and the orthodoxy long was the knowledge was not “re-discovered” or “re-invented” until perfected in Italy during the late thirteenth century although it’s now understood that in the Islamic world lens continued during the late Medieval period to be ground and it’s suspected it was from Arabic texts the information reached Europe.

What really was a lost known was how the Romans of Antiquity made their long-lasting opus caementicium (concrete) so famously “sticky” and resistant to the effects of salt water.  Unlike modern concrete, made using Portland cement & water, Roman concrete was a mix of volcanic ash & lime, mixed with seawater, the later ingredient inducing a chemical reaction creating a substance stronger and more durable.  When combined with volcanic rocks, it formed mineral crystalline structures called aluminum tobermorite which lent the mix great strength and resistance to cracking.  After the fall of Rome, the knowledge was lost and even when a tablet was discovered listing the mix ratios, caementicium couldn’t be replicated because the recipe spoke only of “water” and not “sea water”, presumably because that was common knowledge.  It was only modern techniques of analysis which allowed the “lost known” to again become a “known known”.