Sqound

Sqound (pronounced skwu-kuhl)

An object in the shape of a square with rounded corners.

1990s: The word was coined by a person or persons unknown to distinguish between the (round) taillights used on (most) C4 Chevrolet Corvettes between 1983-1989 and those built subsequently (1990-1996), the construct being sq(uare) + (r)ound).  Square was from the Middle English square, sqware & squyre, from the Old French esquarre & esquerre, (which endures in modern French as équerre), from the Vulgar Latin exquadra, the construct being ex- (the prefix used as an intensive) +‎ quadro (four cornered; make square), from quadrus (square).  It displaced fēowerecge (four-edged).  Round was from the Middle English round & rounde, from the Old Northern French roünt & rund & the Old French ront, runt & reont (which endures in modern French as rond), from the Late Latin retundus & the Classical Latin rotundus.  The noun developed partly from the adjective and partly from the corresponding French noun rond.  Sqound is a noun & adjective; the noun plural is sounds.

1993 Chevrolet Corvette ZR1.

Perhaps the ultimate “niche word”, the only known use is among members of the “C4 ‘Vette cult” (those devoted to the fourth series (C4) Chevrolet Corvette, 1984-1996).  It seems first to have been used as an adjective to describe the then unique taillights fitted to the Corvette ZR1 (1990-1995), released at the 1989 Geneva Motor Show.  Although an obvious visual clue, the ZR1 attracted most attention by its use of an all-aluminium, 350 cubic inch (5.7 litre; LT5) V8 which featured double overhead camshafts (DOHC) and 32 valve heads.  Although the 350 cubic inch displacement was shared with the mainstream small-block Chevrolet V8s, so different was it in terms of construction and internal dimensions that the Corvette community (a priesthood with very firm views) regard it as something separate from the long-running (1954-2003 in production vehicles but still available as a "crate engine") small-block V8 family.  The engine was a co-development between Chevrolet and the UK-based Lotus Group which General Motors (GM, Chevrolet’s parent corporation) had acquired in 1986 (maintaining ownership until 1993) and was intended for use in a Corvette which could be marketed as the “world's fastest production car” (GM defining what constituted “production”); the V8 was given the internal designation LT5.  Although in the mid-1980s electronic engine management systems were still in their infancy, the LT5 did feature some genuine innovations in its fuel management, enabling the combustion chamber design to be optimized for power without this imposing the usual compromises in drivability at lower speeds.  Assembly of the (relatively) low-volume LT5 was sub-contracted to Mercury Marine which had long experience of the materials used in the construction.

LT5 V8 in 1990 (believed built in 1989) Chevrolet Corvette ZR1, one of 25 GM R&D (research & development) prototypes built to test the active-suspension system.

Perhaps of greater significance to GM was the expertise Lotus possessed in chassis design & tuning although the Corvette was a very different machine to the smaller, lighter cars with which Lotus had built their reputation, encapsulated by the philosophy of company founder Colin Chapman (1928–1982): “Simplify, then add lightness”.  Historically, that idea was most “un-Corvette” like and despite the aluminium engine block and heads, the ZR1 did emerge from development weighing some 200 lb (91 kg) more than the typical C4 Corvette, the additional heft the consequence of weightier components needed to support the greater speed and lateral forces made possible by the additional power and cornering capability.  On the road, the Lotus influence was certainly felt, the ZR1’s limits of adhesion as impressive as the then impressively wide (315-35 x 17 inch) tyres would suggest.  Befitting its role, the ZR1 was offered only as a coupé with a removable roof panel (no convertibles were produced) and as well as the wider wheels, it was distinguished from the rest of the range by a widened tail section with a convex rear fascia housing four “squond” taillights, the first time since the 1961 models anything but four round units had appeared on a production Corvette.

1987 Chevrolet Corvette with the round taillights used between 1984-1990 (left) and 1993 Chevrolet Corvette ZR1 with sqounds.

The ZR1 was much admired although not all approved of the squonds.  However, Chevrolet’s stylists must have liked them because in 1990 the convex fascia and squonds were standardized across the range, presumably pleasing the accountants who probably never saw the point of producing two different moldings which fulfilled the same function.  Why the C4 cultists settled on “sqound” isn’t known but it’s likely to have been something which just “came to someone” searching for a word to describe a shape which was neither quite round or square; within the cult there is (as far as in known), no “linguistics & etymology” committee.  In 1990, there was no world wide web and the internet was almost unknown outside of universities and places like the Pentagon so it wasn’t as if Google was there to answer the question.  Had search engines been available, it’s likely sqound might never have been coined because the word “quartic” quickly (as least as quickly as a 2400 kbit/s modem on a dial-up connection permitted) would have been unearthed.

1960 Plymouth Fury four-door hardtop (left), 1974 Austin Allegro 1750 Sport Special (centre) and 2024 Chevrolet Corvette Z06 coupé (right).

Once a technical term in the arcane world of algebra and thus known to only a few, "quartic" first gained a larger audience in 1973 when, to general derision, British Leyland (BL) released the Austin Allegro, complete with a steering wheel which was “not quite round and not quite square".  Explaining it was chosen to afford the diver greater leg-room and provide a better view of the instruments, BL revealed the shape was “quartic”.  The idea actually wasn’t novel, dating back decades and had been used on quite a few American cars during the early 1960s but for whatever reasons, the presence of one in the Allegro attracted little but criticism, something the rest of the vehicle would soon suffer.  BL also attracted the scorn of mathematicians who hastened to point out a quartic is “an algebraic equation or function of the fourth degree or a curve describing such an equation or function” insisting the correct description for a "square with rounded corners" is “squircle” (in algebraic geometry "a closed quartic curve having properties intermediate between those of a square and a circle"), the construct being squ(are) +c(ircle).  Few etymologists (and certainly no lexicographers) appear to have listed sqound as a "real" word but it's of interest because as a rare example in English of a word where a "q" is not followed by a "u"; such constructs do exist but usually in the cases where initialisms have become acronyms such as Qantas (Queensland and Northern Territory Aerial Services).  Such words do appear in English language texts but they tend to be foreign borrowings including (1) qat (or khat) (a plant native to East Africa and the Arabian Peninsula, often chewed for its stimulant effects), (2) qi (a term from Chinese philosophy referring to life force or energy), qibla (the direction Muslims face when praying (towards the Kaaba in Mecca)) and (4) qiviut (the soft under-wool of the musk-ox, valued when making warm clothing).  For a while, BL pretended to ignore the geometry pedants but within a year replaced the wheel with a conventional circular design.  Whatever the name, variations of the shape have since become popular with high-end manufacturers, Ferrari, Aston-Martin, Lamborghini and others all pursuing non-circular themes and one is a feature of the latest (C8) mid-engined Chevrolet Corvette, in which, unlike the unfortunate Allegro, it's much admired.

The antipodean Edsel: 1973 Leyland P76 Super V8 (left) and 1974 Leyland Force 7V (right).  Only 10 of the prototype Force 7V coupés survived the crusher but although it offered the novelty of a hatchback, the styling was ungainly and the very market segment for which it was intended was close to extinction.  Even had the range survived beyond 1974, success would have been improbable although the company should be commended for having intended to name the luxury version the Tour de Force (from the French and translated literally as "feat of strength"), the irony, in retrospect, charming.     

Although 1973 was the last “good year” for the “old” UK economy and one during which British Leyland was looking to the future with some optimism, the corporation’s troubles that year with steering wheels were, in retrospect, a harbinger for what lay ahead.  In addition to the Allegro, also introduced in 1973, on the other side of the planet, was the P76, a large (then a “compact” in US terms) sedan which Leyland Australia hoped would be competitive with the then dominant trio, GMH’s (General Motors Holden) Holden, Ford’s Falcon and Chrysler’s Valiant, the previous attempts using modified variants of UK models less than successful.  Leyland at the time kept expectations low, claiming the target was nothing more than a 10% market share and the initial reception the P76 received suggested this might more than be realized, the consensus of press reports concluding the thing was in many aspects at least as good as the opposition and in some ways superior, the country’s leading automotive that year awarding the V8 version the coveted COTY (Car of the Year) trophy.  Unfortunately, the circumstances of 26 June 1973 when the P76 was launched didn’t last, the first oil crisis beginning some four months later which resulted in a spike in the price of oil which not only suddenly dampened demand for larger cars but also triggered what was then the most severe and longest-lasting recession of the post-war years.  Basic design flaws in the body engineering and indifferent quality control contributed to the debacle which is now remembered as the Australian industry’s Edsel and in October 1974 production of the P76 ended and Leyland closed its Australian manufacturing facilities, never to re-open.

1973 P76 with the original sharp-edged steering wheel (left) and the later version, designed for the Force 7 (right).  The P76's steering wheel was one of many flaws which were planned to be rectified (or at least ameliorated) in the "facelifted" version scheduled for 1975 but before the end of 1974 the decision had been taken in London to axe the entire Leyland Australia project.    

Given the geo-political situation, rampant inflation and troubled industrial relations of the time, the P76’s steering wheel is really just a footnote in the sad tale but, like the Allegro’s “quartic” venture it was emblematic of the self-inflicted injuries to which Leyland would subject itself, both in the UK and its antipodean offshoot.  When the P76 made its debut in 1976, there was some comment that the steering wheel’s boss had a horn-pad in the shape of a boomerang, emphasizing the Australian connection but what was criticized was the rim which had bizarre, concave cross-section, meaning a quite sharp edge faced the driver, leaving an impression on the palms of the hands after only a few minutes driving.  The industry legend is the shape was a consequence of the typist (in 1973 it was accepted practice to blame women whenever possible) who prepared the final specification-sheet having mixed up “concave” & “convex” but even if that’s true it’s remarkable the obvious flaw in the design wasn’t rectified at the prototype stage.  Some have doubted the veracity of the story but such things do happen.  On 23 September, 1999, NASA (National Aeronautics and Space Administration) lost the US$125 million Mars Climate Orbiter spacecraft after its 286-day journey to Mars and that was a time when US$125 million was still a lot of money.  There was of course the inevitable review which found the craft’s directional thrusters had, over the course of several months, been incorrectly fired because the control data had been calculated in incorrect units.  The contractor Lockheed Martin (responsible for the calculations) was sending data in Imperial measures (pounds) to NASA, while NASA's navigation team, expecting metric units, interpreted the numbers as Newtons).  As far as is known, neither the contractor nor the agency attempted to blame a typist.

Picture of Lindsay Lohan in sqound frame (frame by Hanna Zasimova) (left) and sqound headlight surrounds on 1971 VG Chrysler Valiant VIP (right).  Passing usually unnoticed, sqounds are all around us although the mathematicians insists the shape is neither a sqound nor a quartic but a squircle.

Capsule

Capsule (pronounced kap-suhl (U), kap-sool (non-U) or kap-syool (non U))

(1) In pharmacology, a gelatinous case enclosing a dose of medicine.

(2) In biology and anatomy, a membranous sac or integument; a cartilaginous, fibrous, or membranous envelope surrounding any of certain organs or parts, especially (1) the broad band of white fibres (internal capsule) near the thalamus in each cerebral hemisphere and (2) the membrane surrounding the eyeball.

(3) Either of two strata of white matter in the cerebrum.

(4) The sporangium of various spore-producing organisms, as ferns, mosses, algae, and fungi.

(5) In botany, a dry dehiscent (one that that liberates its seeds by splitting, as in the violet, or through pores, as in the poppy) fruit, composed of two or more carpels.

(6) A small case, envelope, or covering.

(7) In aerospace, a sealed cabin, container, or vehicle in which a person or animal can ride in flight in space or at very high altitudes within the earth's atmosphere (also called space-capsule).

(8) In aviation, a similar cabin in a military aircraft, which can be ejected from the aircraft in an emergency, complete with crew and instruments etc; an outgrowth of the original escape device, the ejector-seat.  The concept is used also by some sea-going vessels and structures such as oil-rigs where they’re essentially enclosed life-boats equipped for extended duration life-support.

(9) A thin cap or seal (made historically from lead or tin but now usually of plastic), covering for the mouth of a corked (ie sealed with some sort of stopper) bottle.

(10) A concise report; brief outline.

(11) To furnish with or enclose in or as if in a capsule; to encapsulate; to capsulize.

(12) In bacteriology, a gelatinous layer of polysaccharide or protein surrounding the cell wall of some bacteria and thought to be responsible for the virulence in pathogens.  The outer layer of viscous polysaccharide or polypeptide slime of the capsules with which some bacteria cover their cell walls is thought to provide defense against phagocytes and prevent the bacteria from drying out.

(13) In the fashion industry (as a modifier), a sub-set of a collection containing the most important or representative items (a capsule-collection).

(14) In chemistry, a small clay saucer for roasting or melting samples of ores etc, known also as a scorifier (archaic); A small, shallow evaporating dish, usually of porcelain.

(15) In ballistics, a small cup or shell, often of metal, for a percussion cap, cartridge etc.

1645–1655: From the Middle English capsula (small case, natural or artificial), from the French capsula (a membranous sac) or directly from the Latin capsula (small box or chest), the construct being caps(a) (box; chest; case) + -ula (the diminutive suffix).  The medicinal sense is 1875, the origin of the shortened form being that in 1942 adopted by British army quartermasters in their inventory and supply lists (eg Cap, ASA, 5 Gr (ie a 5 grain capsule of aspirin)).  The use to describe the part of a spacecraft containing the crew is from 1954, thought influenced by the number of military personnel involved during the industry’s early years, the sense from the jargon of ballistics meaning "shell of a metallic cartridge" dating from 1864 (although the word in this context had earlier been used in science fiction (SciFi or SF)).  Capsule has been applied as an adjective since 1938.  The verb encapsulate (enclose in a capsule) is from 1842 and was in figurative use by 1939 whereas the noun encapsulation didn’t appear until 1859 but was a figurative form as early as 1934.  Capsule is a noun & verb, capsuler, capsulization & encapsulation are nouns, encapsule, capsulizing, encapsulated & encapsulating are verbs, capsulated and capsuliferous & capsuligenous are adjectives; the noun plural is capsules.  In medicine, the adjective capsuloligamentous is used in anatomical science to mean "relating to a capsule and a ligament".

Science (especially zoology, botany, medicine & anatomy) has found many uses for capsule (because in nature capsule-like formations occur with such frequency) as a descriptor including the nouns capsulotomy (incision into a capsule, especially into the lens of the eye when removing cataracts), (the generation and development of a capsule), capsulorhexis (the removal of the lens capsule during cataract surgery) & capsulectomy (the removal of a capsule, especially one that surrounds an implant) and the adjective capsuloligamentous (of or relating to a capsule and a ligament).  Science also applied modifiers as required, thus forms such as intercapsule, pseudocapsule, microcapsule, macrosapsule & subsapsule.  Industry found a use: the noun capsuler describing "a machine for applying the capsule to the cork of a wine bottle" and the first "space capsules" (the part of spaceships with the life-support systems able to sustain life and thus used as the crew compartment) appeared in SF long before any were built or launched.  The derived forms most frequently used are encapsulate and its variations encapsulation and encapulated.  

The Capsule in Asymmetric Engineering

Focke-Wulf Fw 189 Eurl (Owl).

Unusual but far from unique in its structural asymmetry, and offset crew-capsule, the Blohm & Voss BV 141 was tactical reconnaissance aircraft built in small numbers and used in a desultory manner by the Luftwaffe during WWII.  A specification issued in 1937 by the Reichsluftfahrtministerium (RLM; the German Air Ministry) had called for a single-engine reconnaissance aircraft, optimized for visual observation and, in response, Focke-Wulf responded with their Fw 189 Eurl (Owl) which, because of the twin-engined, twin-boomed layout encountered some resistance from the RLM bureaucrats but it found much favor with the Luftwaffe and, over the course of the war, some nine-hundred entered service and it was used almost exclusively as the German's standard battlefield reconnaissance aircraft.  In fact, so successful did it prove in this role that the other configurations it was designed to accommodate, that of liaison and close-support ground-attack, were never pursued.  Although its performance was modest, it was a fine airframe with superb flying qualities and an ability to absorb punishment which, on the Russian front where it was extensively deployed, became famous and captured exampled provide Russian aeronautical engineers with ides which would for years influence their designs.

Arado Ar 198.

The RLM had also invited Arado to tender but their Ar 198, although featuring an unusual under-slung and elongated cupola which afforded for the observer a uniquely panoramic view, proved unsatisfactory in test-flights and development ceased.  Blohm and Voss hadn't been included in the RLM's invitation but anyway chose to offer a design which was radically different even by the standards of the innovative Fw 189.  The asymmetric BV 141 design was intriguing with the crew housed in an extensively glazed capsule, offset to starboard of the centre-line with a boom, offset to the left, housing the single-engine in front and tail to the rear.  Prototypes were built as early as 1938 and the Luftwaffe conducted were operational trials over both the UK and USSR between 1939-1941 but, despite being satisfactory in most respects, the Bv 141 was hampered by poor performance, a consequence of using an under-powered engined.  A re-design of the structure to accommodate more powerful units was begun but delays in development and the urgent need for the up-rated engines for machines already in production doomed the project and the Bv 141 was in 1943 abandoned.

Blohm & Voss BV 141 prototype.

Blohm & Voss BV 141.

Despite the ungainly appearance, the test-pilots reported the Fw 141 was a nicely balanced airframe, the seemingly strange weight distribution well compensated by (1) component placement, (2) the specific lift characteristics of the wing design and (3) the choice of rotational direction of both crankshaft and propeller, the torque generated used as a counter-balance.  Nor, despite the expectation of some, were there difficulties in handling whatever behavior was induced by the thrust versus drag asymmetry and pilots all indicated some intuitive trimming was all that was needed to compensate for any induced yaw.  The asymmetry extended even to the tail-plane, the starboard elevator and horizontal stabilizer removed (to afford the tail-gunner a wider field of fire) after the first three prototypes were built; surprisingly, this was said barely to affect the flying characteristics.  Focke-Wolf pursued the concept, a number of design-studies (including a piston & turbojet-engine hybrid) initiated but none progressed beyond the drawing-board.

Lindsay Lohan's promotion of Los Angeles-based Civil Clothing's capsule collection, November 2014.  The pieces were an ensemble in black & white, named "My Addiction".

The capsule on the circuits

Bisiluro Damolnar, Le Mans, 1955.

The concept of the asymmetric capsule made little impact in aviation but it certain made an impression on “Smokey” Yunick (Henry Yunick 1923–2001).  Smokey Yunick was American mechanic and self-taught designer who was for years one of the most innovative and imaginative builders in motorsport.  A dominant force in the early years of NASCAR where his team won two championships and dozens of races, he continued his involvement there and in other arenas for over two decades including the Indianapolis 500, his car winning the 1960 event.  During WWII, Yunick had piloted a Boeing B-17 Flying Fortress for the 97th Bombardment Group (Heavy), flying some fifty missions out of Amendola Field, Italy and on one run, he’d had seen in the skies over Germany a Blohm & Voss BV 141 and was intrigued by the outrigger capsule in which sat the crew, immediately trying to imagine how such a layout would affect the flying characteristics.  The image of the strange aircraft stayed with him and a decade later he noted the Bisiluro Damolnar which ran at Le Mans in 1955, the year of the horrific accident in which eighty-four died.  He must have been encouraged by the impressive pace of the Bisiluro Damolnar rather than its high-speed stability (it was blown (literally) of the track by a passing Jaguar D-Type) and to contest the 1964 Indianapolis 500, he created a capsule-car.

Hurst Floor Shifter Special, Indianapolis, 1964.

Like many of the machines Yunick built, the capsule-car was designed with the rule-book in one hand and a bucket of the sponsor’s money in the other, Hurst Corporation in 1964 paying US$40,000 (equal to circa US$335,000 in 2021) for the naming rights.  Taking advantage of the USAC’s (the Indianapolis 500’s sanctioning body) rules which permitted the cars to carry as much as 75 gallons (284 litres) of fuel, some did, the placement of the tanks being an important factor in the carefully calculated weight-distribution.  The drawback of a heavy fuel load was greater weight which, early on, decreased speed and increased tyre wear but did offer the lure of less time spent re-fueling so what Yunick did was take a novel approach to the "fuel as ballast" principle which balanced the mass by placing the driver and fuel towards the front and the engine to the rear, the desired leftward bias (the Indianapolis 500 being run anti-clockwise) achieved by specific placement.  His great innovation was that using a separate, left-side capsule for the driver, he created three different weight masses (front, rear and left-centre) which, in theory, would both improve aerodynamic efficiency and optimize weight distribution.

Hurst Floor Shifter Special, Indianapolis, 1964.

Despite the appearance, the capsule-car was more conventional than intended.  The initial plan had been to use a turbine engine (as Lotus later would, almost successfully) and a single throttle/brake control but, for various reasons, it ended up using the ubiquitous Offenhauser power-plant and a conventional, two-pedal setup.  Upon arrival at the track, it made quite an impression and many understood the theories which had inspired the design.  Expectations were high.  Unfortunately, the theories didn’t work in practice and the car struggled to reach competitive speeds, an attempt at a qualifying lap delayed until the last available day.  Going into turn one at speed, a problem with the troublesome brakes caused a loss of control and the car hit the wall, the damage severe enough to preclude any chance of repairs being made in time for the race.

Hurst Floor Shifter Special, Indianapolis, 1964.

Yunick wasn’t discouraged and remained confident a year was enough time to develop the concept and solve the problem the shakedown on the circuit had revealed but the capsule-car would never race again, rule changes imposed after a horrific crash which happened early in 1964 race meaning it would have been impossible for it to conform yet remain competitive.  Effectively rendered illegal, the capsule-car was handed to the Indianapolis Motor Speedway Museum, where it's sometimes displayed.

Japanese Hotels: The Pod and the Capsule

The term "capsule hotel" is a calque of the Japanese カプセルホテル (kapuseru hoteru).  The capsule hotel is a hotel with very small accommodation units which certainly can’t be called “rooms” in any conventiona sense of the word although the property management software (PMS) the operators use to manage the places is essentially the same (though simplified because there’s no need to handle things such as mini-bars, rollaway beds et al).  Although not exclusive to Japan, it’s Japanese cities with which the concept is most associated, the first opened in Osaka in 1979 and they were an obvious place for the idea to emerge because of the high cost of real estate.  Although the market has softened since the “property bubble” which in 1989 peaked with Tokyo commercial space alone reputedly (at least as extrapolated by the theorists) worth more than the continental United States, the cost per m² remains high by international standards.  Because one typical hotel room can absorb as many m³ as a dozen or more capsules, the optimized space efficiency made the economic model compelling, even as a niche market.

Anna in Capsule 620.

Many use the terms “pod hotel” (pod used here in the individual and not the collective sense) & “capsule hotel” interchangeably to describe accommodation units which compact sleeping spaces with minimal additional facilities but in Japan the industry does note there are nuances of difference between the two.  Both are similar in that structurally the design is one of an array of small, pod-like sleeping units stacked side by side and/or atop each other in a communal space.  In a capsule hotel, the amenities are limited usually to a bed, small television and usually some (limited) provision of personal storage space with bathroom facilities shared and located in the communal area.  The target market traditionally has been budget travellers (the business as well as the leisure market) but there was for a while the phenomenon of those booking a night or two just to post the images as something exotic on Instagram and other platforms.  Interestingly, "female only" capsule hotels are a thing which must be indicative of something. 

Entrance to the world of your capsule, 9h nine hours Suidobashi, Tokyo.

The “Pod Hotel” came later and tended to be (slightly) larger, some 10-20% more expensive and positioned deliberately as “upmarket”, obviously a relative term and best thought of as vaguely analogous with the “premium economy” seats offered by airlines.  Compared with a capsule, a pod might have adjustable lighting, a built-in entertainment system supporting BYD (bring your own device) and somewhat more opulent bedding.  Demand clearly existed and a few pod hotels emerged with even a private bathroom and additional storage space although the sleeping area tended to remain the same.  It’s part of Japanese urban folklore that these more self-contained pods are often used by the famous “salarymen” who find them an attractive alternative to finding their way home after an evening of karaoke, strong drink, the attention of hostesses and such.  That aspect of the salaryman lifestyle predated the 1980s and capsules and pods were just a more economic way of doing things.  Not however predicted in a country which had since the mid-1950s become accustomed to prosperity, full-employment and growth were the recessions and consequent increase in unemployment which became part of the economy after the bubble burst in 1990.  In this environment, the capsules and especially the pods became low-cost alternative accommodation for the under-employed & unemployed and while estimates vary according to the city and district, it may be that at times as many as 20% of the units were rented on a weekly or monthly basis by those for whom the cost of a house or apartment had become prohibitive.

Monocoque

Monocoque (pronounced mon-uh-kohk or mon-oh-kok (non-U))

(1) A type of boat, aircraft, or rocket construction in which the shell carries most of the stresses.

(2) A type of automotive construction in which the body is combined with the chassis as a single unit.

(3) A unit of this type.

1911: From the French monocoque (best translated as “single shell” or “single hull” depending on application), the construct being mono- + coque.  Mono was from the Ancient Greek μόνος (monos) (alone, only, sole, single), from the primitive Indo-European root men (small, isolated).  Coque was from the Old French coque (shell) & concha (conch, shell), from the Latin coccum (berry) and concha (conch, shell) from the Ancient Greek κόκκος (kókkos) (grain, seed, berry).  In the early twentieth century, it was the French who were most dominant in the development of aviation.  Words like “monocoque”, “aileron”, “fuselage” and “empennage” are of French origin and endure in English because it’s a vacuum-cleaner of a language which sucks in anything from anywhere which is handy and manageable.  Monocoque is a noun; the noun plural is monocoques.

Noted monocoques

Deperdussin Monocoque, 1912.

A monocoque (sometime referred to as structural skin) is a form of structural engineering where loads and stresses are distributed through an object's external skin rather than a frame; concept is most analogous with an egg shell. Early airplanes were built using wood or steel tubes covered with starched fabric, the fabric rendering contributing only a small part to rigidity.  A monocoque construction integrates skin and frame into a single load-bearing shell, reducing weight and adding strength.  Although examples flew as early as 1911, airframes built as aluminium-alloy monocoques would not become common until the mid 1930s.  In a pure design where only function matters, almost anything can be made a stressed component, even engine blocks and windscreens.

Lotus 25, 1962.

In automotive design, the word monocoque is often misused, treated as a descriptor for anything built without a separate chassis.  In fact, most road vehicles, apart from a handful of expensive exotics, are built either with a separate chassis (trucks and some SUVs) or are of unibody/unitary construction where box sections, bulkheads and tubes to provide most of the structural integrity, the outer-skin adding little or no strength or stiffness.  Monocoque construction was first seen in Formula one in 1962, rendered always in aluminium alloys until 1981 when McLaren adopted carbon-fibre.  A year later, the McLaren F1 followed the same principles, becoming the first road car built as a carbon-fibre monocoque.

BRM P83 (H16), 1966.

In 1966, there was nothing revolutionary about the BRM P83’s monocoque chassis.  Four years earlier, in the second season of the voiturette era, that revolution had been triggered by the Lotus 25, built with the first fully stressed monocoque chassis, an epoch still unfolding as materials engineering evolves; the carbon-fibre monocoques seen first in the 1981 McLaren MP4/1 becoming soon ubiquitous.  The P83 used a monocoque made from riveted Duralumin (the word a portmanteau of durable and aluminium), an orthodox construction for the time.  Additionally, although it had been done before and would soon become an orthodoxy, what was unusual was that the engine was a stressed part of the monocoque.

BRM Type 15 (V16), 1949.

The innovation was born of necessity.  Not discouraged by the glorious failure of the extraordinary V16 BRM had built (with much much fanfare and precious little success) shortly after the war, the decision was taken again to join together two V8s in one sixteen cylinder unit.  Whereas in 1949, the V8s had been coupled at the centre to create a V16, for 1966, the engines were re-cast as 180^o flat 8s with one mounted atop another in an H configuration, a two-crankshaft arrangement not seen since the big Napier-Sabre H24 aero-engines used in the last days of the war.  The design yielded the advantage that it was short, affording designers some flexibility in lineal placement, but little else.  It was heavy and tall, exacerbating further the high centre of gravity already created by the need to raise the engine location so the lower exhaust systems would clear the ground.  Just as significantly, it was wide, too wide to fit into a monocoque socket and thus was taken the decision to make the engine an integral, load-bearing element of the chassis.  There was no other choice.

BRM H16 engine and gearbox, 1966.

 

Structurally, it worked, the monocoque was strong and stable and despite the weight and height, the P83 might have worked if the H16 had delivered the promised horsepower but the numbers were never realised.  The early power output was higher than the opposition but it wasn’t enough to compensate for the drawbacks inherent in the design and, these being so fundamental they couldn’t be corrected, the only hope was even more power.  The path to power was followed and modest increases were gained but it was never enough and time ran out before the plan to go from 32 to 64 valves could come to fruition, an endeavour some suggested would merely have “compounded the existing error on an even grander scale.”  Additionally, with every increase in power and weight, the already high fuel consumption worsened.

The H16 did win one grand prix, albeit in a Lotus rather than a BRM monocoque, but that was a rare success; of the forty times it started a race, twenty-seven ended prematurely.  The irony of the tale is that in the two seasons BRM ran the 440 horsepower H16 with its sixteen cylinders, two crankshafts, eight camshafts and thirty-two valves, the championship in both years was won by the Repco-Brabham, its engine with 320 horsepower, eight cylinders, one crankshaft, two camshafts and sixteen valves.  Adding insult to the exquisitely bespoke H16’s injury, the Repco engine was based on an old Oldsmobile block which General Motors had abandoned.  After two seasons the H16 venture was retired, replaced by a conventional V12.

The Mercedes-Benz SLR McLaren

Mercedes-Benz McLaren SLR Coupé (left), Roadster (centre) and Speedster (right).

The monocoque Mercedes-Benz SLR McLaren (C199 / R199 / Z199) was a joint development with McLaren Automotive and was available as a coupé (2003-2010), roadster (2007-2009) & speedster (2009).  Visually, the car was something of an evocation of the 300 SLR gullwing coupé, two of which were built in 1955 for use in competition but never used, one of the consequences of the disaster that year during the Le Mans 24 hour endurance classic when a 300 SLR crashed into the crowd, killing 84 and injuring dozens of others.  Footage of that event is widely available and to a modern audience it will seem extraordinary the race was allowed to continue.

Lindsay Lohan, Britney Spears and Paris Hilton in Ms Hilton's Mercedes-Benz McLaren SLR, outside the Beverley Hills Hotel, Los Angeles.  This was the occasion which produced the photograph which appeared on the infamous “Bimbo Summit” front page of Rupert Murdoch’s (b 1931) New York Post, 29 November 2006.

The 300 SLR (Sport Leicht Rennsport (Sport Light Racing)) which crashed was an open version and the model name was a little opportunistic because it was essentially the W196R Formula One car with a 3.0 litre straight-8 (the F1 rules demanded a 2.5) so the SLR, built to contest the World Sports Car Championship, was technically the W196S; it became the 300 SLR to cross-associate it and the 300 SL gullwing (W198, 1954-1957).  Nine were built, two of which were converted to SLR gullwings and, although never raced, they came to be dubbed the “Uhlenhaut coupés” because they were co-opted by racing team manager Rudolf Uhlenhaut (1906–1989) as high-speed personal transport, tales of his rapid trips between German cities soon the stuff of legend and even if a few myths developed, the cars could exceed 290 km/h (180 mph) so some at least were probably true.  That what was essentially a Grand Prix race car with a body and headlights could be registered for road use is as illustrative as safety standards at Le Mans of how different was the world of the 1950s.  In 2022, one of the Uhlenhaut coupés was sold at auction to an unknown buyer (presumed to be Middle Eastern) for US$142 million, becoming by some margin the world’s most expensive used car.

As a footnote (one to be noted only by the subset of word nerds who delight in the details of nomenclature), for decades, it was said by many, even normally reliable sources, that SL stood for sports Sports Leicht (sports light) and the history of the Mercedes-Benz alphabet soup was such that it could have gone either way (the SSKL (1929) was the Super Sports Kurz (short) Leicht (light) and from the 1950s on, for the SL, even the factory variously used Sports Leicht and Super Leicht.  It was only in 2017 it published a 1952 paper (unearthed from the corporate archive) confirming the correct abbreviation is Super Leicht.  Sports Leicht Rennsport (Sport Light Racing) seems to be used for the the SLRs because they were built as pure race cars, the W198 and later SLs being road cars but there are references also to Super Leicht Rennsport.  By implication, that would suggest the original 300SL (the 1951 W194) should have been a Sport Leicht because it was built only for competition but given the relevant document dates from 1952, it must have been a reference to the W194 which is thus also a Sport Leicht.  Further to muddy the waters, in 1957 the factory prepared two lightweight cars based on the new 300 SL Roadster (1957-1963) for use in US road racing and these were (at the time) designated 300 SLS (Sports Leicht Sport), the occasional reference (in translation) as "Sports Light Special" not supported by any evidence.  The best quirk of the SLS tale however is the machine which inspired the model was a one-off race-car built by Californian coachbuilder ("body-man" in the vernacular of the West Coast hot rod community) Chuck Porter (1915-1982).  Porter's SLS was built on the space-fame of a wrecked 300 SL gullwing (purchased for a reputed US$500) and followed the lines of the 300 SLR roadsters as closely as the W198 frame (taller than that of the W196S) allowed.  Although it was never an "official" designation, Porter referred to his creation as SL-S, the appended "S" standing for "scrap".      

The SLR and its antecedents.

A Uhlenhaut coupé and a 300 SLR of course appeared for the photo sessions when in 2003 the factory staged the official release of the SLR McLaren and to may explicit the link with the past, the phrase “gullwing doors” appeared in the press kit documents no less than seven times.  Presumably, journalists got the message but they weren’t fooled and the doors have always, correctly, been called “butterflies”.  Unlike the machines of the 1950s which were built with an aluminium skin atop a space-frame, the twenty-first century SLRs were a monocoque (engineers say the sometimes heard “monocoque shell” is tautological) of reinforced carbon fibre.  Although the dynamic qualities were acknowledged and it was, by all but the measure of hyper-cars, very fast indeed, the reception it has enjoyed has always been strangely muted, testers seeming to find the thing rather “soulless”.  That seemed to imply a lack of “character” which really seems to suggest an absence of obvious flaws, the quirks and idiosyncrasies which can at once enrage and endear.

The nature of monocoque.

The monocoque construction offered one obvious advantage in that the inherent stiffness was such that the creation of the roadster version required few modifications, the integrity of the structure such that not even the absence of a roof compromised things.  Notably, the butterfly doors were able to be hinged along the windscreen (A) pillars, such was the rigidity offered by carbon fibre, a material for which the monocoque may have been invented.  McLaren would later use a variation of this idea when it released the McLaren MP4-12C (2011-2014), omitting the top hinge which allowed the use of frameless windows even on the roadster (spider) version.

The SLR Speedster (right) was named the Stirling Moss edition and was a homage to the 300 SLR (left) which in the hands of Sir Stirling Moss (1929–2020) and navigator Denis Jenkinson (1920–1996), won the 1955 Mille Miglia (an event run on public roads in Italy over a distance of 1597 km (992 miles)) at an average speed of 157.65 km/h (97.96 mph).

However, the minimalist (though very expensive) Speedster had never been envisaged when the monocoque was designed and to ensure structural integrity, changes had to be made to strengthen what would have become points of potential failure, the removal of the windscreen fame and assembly having previously contributed much to rigidity.  Door sills were raised (recalling the space frame which in 1951 had necessitated the adoption of the original gullwing doors on the first 300 SL (W194)) and cross-members were added across the cockpit, integrated with a pair of rollover protection bars.  Designed for speed, the Speedster eschewed niceties such as air-conditioning, an audio system, side windows and sound insulation; this was not a car for Paris Hilton.  All told, despite the additional bracing, the Speedster weighed 140 kg (310 lb) less than the coupé while the supercharged 5.5 litre V8 was carried over from the earlier 722 edition but the reduction in frontal area added a little to top speed, now claimed to be 350 km/h (217 mph) although the factory did caution that above 160 km/h (100 mph), the dainty wind deflectors would no longer contain the wind and a crash helmet would be required so even if the lack of air-conditioning might have been overlooked, that alone would have been enough for Paris Hilton to cross the Speedster off her list; she wouldn't want "helmet hair".  Only 75 were built, none apparently ever driven, all spending their time on display or the auction block, exchanged between collectors.

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) breast reduction (reduction mammaplasty).  Never has satisfactorily it been explained why this procedure is lawful in most 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 robust unit which began life power 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 designed 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 there was no more metal which could be removed without dangerously compromising safety.  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 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.