Showing posts sorted by relevance for query Resin. Sort by date Show all posts
Showing posts sorted by relevance for query Resin. Sort by date Show all posts

Wednesday, August 17, 2022

Resin

Resin (pronounced rez-in)

(1) Any of a group of non-volatile solid or semisolid organic substances & compounds (that consist of amorphous mixtures of carboxylic acids), obtained directly from certain plants as exudations of such as copal, rosin & amber (or prepared by polymerization of simple molecules) and used typically in pharmaceuticals, plastic production, lacquers, adhesives and varnishes.

(2) A substance of this type obtained from certain pine trees (also called rosin).

(3) To treat, rub or coat with resin.

(4) A precipitate formed by the addition of water to certain tinctures.

(5) Any of various artificial substances, such as polyurethane, that possess similar properties to natural resins and used in the production of plastics; any synthetic compound with similar properties.

1350–1400: From the Middle English resyn & resyne (hardened secretions of various plants), from the Old French resine (gum, resin), from the Latin rēsīna (resin), from the Ancient Greek rhētī́nē (resin of the pine tree), both probably from a non-Indo-European language.  In chemistry, the word came to be applied to synthetic products by after 1883.  The verb resinate (impregnate with resin) dated from 1756.  The adjective resinous (of the nature of, pertaining to, or obtained from resin) is documented since the 1640s, from the Latin resinosus; the earlier adjective was resiny (having a character or quality like resin), noted since the 1570s.  The related (and now rare) noun rosin (distillate of turpentine (especially when in a solid state and employed for ordinary purposes)) dates from the late thirteenth century and was from the Old French raisine & rousine, both variants of résine; it was used as a verb after the mid-fifteenth century.  The later adjectives resiniferous & resinless appear never to have been used except in chemistry or technical literature in relevant industries, the more common forms in general use being resin-like or resinous.  Because the word resin covers a wide field of substances, it usually appears in modified form (acaroid resin, acrylic resin, epoxy resin, phenolic resin, polyresin, polyvinyl resin et al).  The present participle is resining and the past participle resined.  Resin, resinousness & resinite are nouns, resinously is an adverb and resinify is a verb; the noun plural is resins.

Resin wheels

1972 Citroën SM with Michelin RR wheels. 

Although sometimes referred to as being made from “carbon fibre”, materials engineers insist the optional wheels offered on the Citroën SM must be described as “synthetic resin reinforced with long-strand carbon fibre”.  Notable as the first composite road wheel offered for public sale, they were developed by Michelin, the tyre-maker which since 1934 had been Citroën’s parent corporation and the innovation was an appropriate accessory for the SM which, upon release in 1971, was immediately recognized as among the most intricate and intriguing cars in the world.  A descendant of the DS which in 1955 had been even more of a sensation than the SM, it took Citroën not only up-market but into a niche the SM had created, nothing quite like it previously existing, the combination of a large (in European terms), front-wheel-drive (FWD) luxury coupé with hydro-pneumatic suspension, self-centreing (Vari-Power steering), high-pressure braking and a four-cam V6 engine, unique in the world.  The engine had been developed by Maserati, one of Citroën’s recent acquisitions and the name acknowledged the Italian debt, SM standing for Systemé Maserati.  Although, given the size and weight of the SM, the V6 was of modest displacement (initially 2.7 litres (163 cubic inch) and power was limited compared to the competition (181 HP (133 kW)), such was the slipperiness of the body that in terms of top speed, it was at least a match for most.

Michelin RR wheel.

However, lacking the high-performance pedigree enjoy by some of that competition, a rallying campaign had been planned as a promotional tool.  Although obviously unsuited to circuit racing, the big, heavy SM didn’t immediately commend itself as a rally car, early tests indicated some potential but there was a need radically to reduce weight.  One obvious candidate was the steel wheels but attempts to use lightweight aluminum units proved abortive, cracking encountered when tested under rally conditions.  Michelin immediately offered to develop glass-fibre reinforced resin wheels, the company familiar with the material which had proved durable when tested under extreme loads.  Called the Michelin RR (roues resin (resin wheel)), the new wheels were created as a one-piece mold, made entirely of resin except for some embedded steel reinforcements at the stud holes to distribute the stresses.  At around 9.4 lb (4¼ kg) apiece, they were less than half the weight of a steel wheel and in testing proved as strong and reliable as Michelin had promised.  Thus satisfied, Citroën went rallying.

Citroën SM, Morocco Rally, 1971.

The improbable rally car proved a success, winning first time out in the 1971 Morocco Rally and further success followed.  Strangely, the 1970s proved an era of heavy cruisers doing well in the sport, Mercedes-Benz winning events with their 450SLC 5.0 which was both the first V8 and the first car with an automatic transmission to win a European rally.  Stranger still, Ford in Australia re-purposed one of the Falcon GTHO Phase IV race cars which had become redundant when the programme was cancelled in 1972 and the thing proved surprisingly competitive during the brief periods it was mobile, the lack of suitable tyres meaning the sidewalls repeatedly failed.  However, the SM, GTHO & SLC proved a quixotic tilt and the sport went a different direction.  On the SM however, the resin wheels had proved their durability, not one failing during the whole campaign and encouraged by customer requests, Citroën in 1972 offered the wheels as a factory option although only in Europe; apparently the thought of asking the US federal safety regulators to approve plastic wheels (as they’d already been dubbed by the motoring press) seemed so absurd to the French they never bothered to submit an application.

Reproduction RR in aluminum. 

Michelin ceased to make the RR when SM production ended in 1975 but did provide another batch for sale in the mid 1980s and this was said to be a new production run rather than unsold stock.  A cult accessory for a cult car, perfect examples now sell for around US$2000 each which does sound expensive but, given what it can cost to restore (or even maintain) a SM, it’s not a significant sum and, unlike much of the rest of the machine, the RRs are at least trouble-free.  Michelin are not said to be contemplating resuming production but another company has produced visually identical wheels made from aluminum; these only slightly heavier.  Despite the success and the fifty-year history of robustness, Citroën didn’t persist and the rest of the industry never adopted the resin wheel.  The reason was two-fold: (1) Even if economies of scale operated to lower the unit cost, the technology was always going to be more expensive than using aluminum and advances in alloys meant the metal units can provide similar strength with only a slight weight penalty and (2) the resin was always susceptible to high temperatures, something not encountered on the SM which used inboard brakes.  Most cars however don’t use inboard brakes and as Ford found when testing resin wheels during Lincoln's downsizing programme in the mid-1970s, although the weight reduction was impressive, almost the same was possible with aluminum at much lower cost and the problems caused by heat-soak from the brakes were insoluble.  So it proved until the late 1980s when, with the development of new, heat-resistant materials, reinforced resin wheels were made available on the limited-production Dodge Shelby CSX (1989).

True carbon fibre wheels have had a little more success, although only at the top-end of the market, Koenigsegg in 2013 manufacturing carbon fibre single-piece wheels which it offered as a US$40,000 option; a number which needs to be considered in the context of the US$2 million price tag for one of their cars.  Porsche, Mercedes-Benz, Ferrari and Ford have all flirted with carbon fibre wheels and some manufactures are interested in the possibilities offered by hybrid designs which use aluminum for some components and carbon fibre for others, an idea familiar from earlier steel/aluminum combinations.  Regulatory authorities are apparently still pondering things.

The SM V8

1974 prototype Citroën SM with 4.0 V8.

Ambitious as it was, circumstances combined in a curious way that might have made the SM more remarkable still.  By 1973, sales of the SM, after an encouraging start had for two years been in decline, a reputation for unreliability already tarnishing its reputation but the first oil shock dealt what appeared to be a fatal blow; from selling almost 5000 in 1971, by 1974 production numbered not even 300.  The market for fast, thirsty cars had shrunk and most of the trans-Atlantic hybrids (combining elegant European coachwork with large, powerful and cheap US V8s) which had for more than a decade done good business as alternative to the highly strung British and Italian thoroughbreds had been driven extinct.  Counter-intuitively, Citroën’s solution was to develop an even thirstier V8 SM.  It actually made some sense because, in an attempt to amortize costs, the SM’s platform had been used as the basis for the new Maserati Quattroporte but, bigger and heavier still, performance was sub-standard and the theory was a V8 version would transform both and appeal to the US market, then the hope of many struggling manufacturers.

Recreation of 1974 Citroën SM V8 prototype.

Citroën didn’t have a V8; Maserati did but it was big and heavy, a relic with origins in 1950s sports car racing and while its (never wholly tamed) raucous qualities suited the character of the sports cars and saloons Maserati offered in the 1960s, it couldn’t be used in something like the SM.  However, the SM’s V6 was a 90o unit and thus inherently better suited to an eight-cylinder configuration.  In 1974 therefore, a four litre (244 cubic inch) V8 based on the V6 (by then 3.0 litres (181 cubic inch)) was quickly built and installed in an SM which was subjected to the usual battery of tests over a reported 20,000 km (12,000 miles) during which it was said to have performed faultlessly.  Bankruptcy (to which the SM, along with some of the company's other ventures, notably the Wankel programme, contributed) however was the death knell for both the SM and the V8, the prototype car scrapped while the unique engine was removed and stored, later used to create a replica of the 1974 test mule.

Citroën Traction Avant 22, Paris Motor Show 1934.

It was a shame because, despite being most associated with the US, it was the French engineer Léon Levavasseur (1863–1922) who in 1904 created the first V8 engine and at the 1934 Paris Motor Show, Citroën displayed their “22”, a variation of their Traction Avant model but fitted with a 3.8 litre (233 cubic inch) V8, created essentially by joining on a common crankcase two of their 1.9 litre (117 cubic inch) four-cylinder units.  When presented at the show, several models were displayed and the promotional material confirmed the 22 would be available with an extensive choice of coachwork including a saloon, an elongated limousine, a cabriolet and a coupé.  Bankruptcy however halted the project and Michelin, having just taken control, insisted the company concentrate on the best-selling, most profitable lines.  A reputed two dozen-odd 22s were built before the Michelin Man dropped his axe and although all passed into private hands, none appears to have survived the war although there have always been rumors one remains hidden somewhere in the Far-East, a survivor of the colonial presence in Indo-China.

1967 Cadillac Eldorado, which proved the big, FWD coupé could still be done.

Evidence does however suggest a V8 SM would likely have been a failure, just compounding the existing error on an even grander scale.  It’s true that Oldsmobile and Cadillac had offered big FWD coupés with great success since the mid 1960s (the Cadillac at one point fitted with a 500 cubic inch (8.2 litre) V8 rated at 400 HP (300 kW)) but they were very different machines to the SM and appealed to a different market.  Probably the first car to explore what demand might have existed for a V8 SM was the hardly successful 1986 Lancia Thema 8·32 which used the Ferrari 2.9 litre (179 cubic inch) V8 in a FWD platform.  It was about a daft an idea as it sounds.  Even had the V8 SM been all-wheel-drive (AWD) it would probably still have been a failure but it would now be remembered as a revolution ahead of its time.  As it is, the whole SM story is just another cul-de-sac, albeit one which has become a (mostly) fondly-regarded cult.

Lindsay Lohan in Tsubi Scooter Jeans, Andrea Brueckner Saddle Bag, L.A.M.B. Lambstooth Sweater, Manolo Blahnik Butterfly Sandals & Louis Vuitton Inclusion Resin Bangle, Los Angeles, April 2005.

Wednesday, July 26, 2023

Amber

Amber (pronounced am-ber)

(1) A pale yellow, sometimes reddish or brownish, brittle, translucent fossil resin of extinct coniferous trees that occurs in tertiary deposits; capable of gaining a negative electrical charge by friction and a fine insulator.

(2) The yellowish-brown color of amber resin; of the color of amber; yellowish-brown (not applied to the variety “blue amber” which appears blue rather than yellow under direct sunlight).

(3) To perfume or flavor with ambergris (rare and used only in the industrial production of scents).

(4) To cause to take on the yellowish-brown colour of amber (now rare and used only as a literary or poetic device).

(5) Certain objects made of amber (jewelry; ornamental articles; relics; fossilized creatures contained within the resin etc).

(6) The intermediate light in a set of three traffic lights, which when illuminated indicates that drivers should stop short of the intersection when safe to do so (green indicating “go” and red “stop”).  In some places the amber is referred to as “orange”.

(7) By extension from the use in traffic management, an indication in other contexts that one should hesitance to proceed or proceed only with caution (sometimes as “amber light”).

(8) As “amber alert”, a public notification of a child abduction (North America), named in memory of Amber Rene Hagerman (1986–1996); technically AMBER Alert, referencing the backronym America's Missing: Broadcasting Emergency Response.

(9) In biology, genetics & biochemistry, the stop codon (nucleotide triplet) "UAG", or a mutant which has this stop codon at a premature place in its DNA sequence.  UAG is named “amber” because the first to isolate the mutation was then California Institute of Technology (Caltech) graduate student Harris Bernstein (b 1961), whose surname is the German word for the resin known as amber.

(10) A female given name.

(11) In automotive lighting (often as “the ambers”), the lights of that color mounted so to be visible at all corners or an automobile which flash sequentially in indicate a driver’s intention to turn, change lanes etc (thus known various as “flashers”, “turn-signals” and even “trafficators” (the (originally mechanical) semaphore signals which when activated protruded from the bodywork of a vehicle to indicate an intention to turn in the direction of the illuminated device).  They’re used also as warning lights (four-way flashers) when all flash in unison.  Since the late 1950s, in most markets their positioning, luminosity and rate of flashing has been regulated (sometimes in unfortunately contradictory ways.

1350–1400: From the Middle English ambre & aumbre, from the Old French, from the Medieval Latin ambra, from the Arabic عَنْبَر‎ (ʕanbar) (ambergris), from the Middle Persian ʾnbl (ambar⁠) (ambergris).  It displaced the Middle English smulting (from the Old English smelting (amber)) and the Old English eolhsand (amber), glær (amber) and sāp (amber, resin, pomade).  The seemingly strange confusion between the fossilized tree resin and the ash-colored secretion of the sperm whale’s intestine (ambergris) is assumed to have arisen because the dissimilar substances both were rare, valuable and found on the seacoast.  The word ambergris came into use in the West during the Crusades.  In English, amber came to be used as an adjective by circa 1500 and it was in use as the name of a color by 1735.  Amber is a noun, verb & adjective, amberlike, ambery, anberish, amberesque & amberous are adjectives, ambering & ambered are verbs; the noun plural is ambers.

Actor Amber Heard (b 1986) who seems to have a thing for 1968 Ford Mustangs.

In Europe, the word amber was picked up to describe the fossil resins found on the shores of the Baltic first in the late thirteenth century in Anglo-Latin which, by the turn of the fifteenth had entered English.  Over time, this meaning prevailed and ambergris came to be restricted to the whale’s secretions although there has long been a faction of the etymology community which has suggested it’s not impossible amber is an unrelated word of unknown origin.  Once they were distinguished as white or yellow amber for the Baltic fossil resin and gray amber for the whale’s contribution, French distinguishing between the two as ambre jaune and ambre gris.

Among her inventory of beauty care essentials, Lindsay Lohan lists the long-serving Dior Backstage Eyeshadow Palette in Amber Neutrals as her “favorite eye palette

In a chemical coincidence, the solidified tree resin possesses remarkable static electricity properties and Baltic amber was known to the Romans as electrum, able to gain a negative electrical charge merely through friction and although rarely used as such, it’s a fine insulator.  In the Old Testament the Hebrew חַשְׁמַל (chashmal) is translated variously as “a shining metal” or “the gemstone amber” but as the light plays upon amber it can recall fire or lightning, the impression strengthened when the substance is stimulated to spark and crackle with static electricity.  The prophet Ezekiel clearly had witnessed the electrical phenomenon and although he'd not have understood the science, in his vision of God’s throne, Ezekiel wrote:

On this throne high above was a figure whose appearance resembled a man. From what appeared to be his waist up, he looked like gleaming chashmal, flickering like a fire.  And from his waist down, he looked like a burning flame, shining with splendor.”  (Ezekiel 1:26–27)

It was the Lithuania-born journalist Eliezer BenYehuda (1858–1922) who re-established the Hebrew language as living tongue to be used in everyday life.  In the late nineteenth century, except for a handful of scholars, Hebrew was used only as a Holy language, restricted to prayer and worship in the synagogue, Yiddish the only recognizably Jewish language spoken on the street or in the home.  Something of a prophet himself, he created the first Israeli Hebrew newspaper and dictionary and to make it useful in the modern age, he had to create many new words and one was needed to describe electricity, then a concept understood for little more than a century.  He chose chashmal.  When the Hebrew Scriptures were first translated into Greek some 2,100 years ago, the Hebrew chashmal became the Ancient Greek λεκτρον (lektron) and could be used to refer to the gemstone but was used also in the manner of the Phoenician elēkrŏn (shining light).  Seventeenth century English scientists who conducted some of the earliest experiments which began to explain the phenomenon called it electrikus (like amber) and from this came the Modern English electricity.  BenYehuda’s work was popularized by Judah Leib Gordon (1830-1892), a leading poet of the nineteenth century Jewish Enlightenment whose words were more lyrical than the dry, journalistic lists of Ben-Yehuda would write: “The light, the heat, the steam, and the electricity (chashmal), all nature’s forces are the angels above.”  He added in an explanatory footnote: “By chashmal (hash-ma-LA), I mean the natural force that is electritzitat, since the Greek translation of chashmal is elektrika.”

Immortality of sorts: An unfortunate gecko, trapped in amber 54 million years ago.

The first AMBER Alert, 1996.

The amber alert is a system used in North America to provide public notification of a child abduction (North America), named in memory of Amber Rene Hagerman (1986–1996).  Technically it’s AMBER Alert, referencing the backronym of America's Missing: Broadcasting Emergency Response.  Then aged nine, Amber Hagerman was abducted and murdered in 1996 and a campaign was organized which demanded protocols be established to alert the local population of details which might assist in finding the child (description of suspects, vehicle registration numbers etc).  Initially, the vectors of transmission were local radio and television stations but as technology evolved, other were added including platforms on the internet such as e-mail & social media, electronic traffic-condition signs, advertising billboards and SMS text messages delivered to cell phones.

Most succiniferous: The Amber Room, Catherine Palace, St. Petersburg, 1917.  This is the only known color image of the room.

Last seen (in crates) in 1945, it was either destroyed in the last days of World War II (1939-1945) or dissembled and hidden somewhere or otherwise disposed of.  Between 1979-2003, with early funding from the Federal Republic of Germany (the FRG, the old West Germany), a replica was built and installed in the Catherine Palace.  The golden, jewel-encrusted creation, rendered by artisans and craftsmen from tons of amber, was a gift to Peter the Great (Peter I, 1672-1725; Tsar of Russia 1682-1725) in 1716, celebrating the conclusion of an alliance between Russia and Prussia.  Much admired during the centuries in which it endured wars, pandemics and revolutions, it was looted by the Nazis in the final months of the war, packed into crates which subsequently vanished.  Either they were lost or destroyed in the chaos or hidden away.

Originally installed in the Charlottenberg Palace of Friedrich I (1657–1713; King of Prussia 1701–1713), the Amber Room was a genuine multi-national venture, the design by Andreas Schlüter (1659–1714), a German sculptor in the baroque tradition, the bulk of the construction by the Danish craftsman Gottfried Wolfram (1646-1716), already famous for his skill in rendering amber.  It took over a decade to build and upon completion, Peter the Great expressed his wonderment and in 1716, Frederick William I (1688–1740; King of Prussia 1713-1740) presented it to the Tsar, part of his diplomatic effort to secure the Prussian-Russian alliance against Sweden.  Accordingly, along with a selection of paintings, the room was crated and shipped to Saint Petersburg where it remained until in 1755 it was moved to the Catherine Palace (Tsarskoye Selo (Tasar's Palace)) in Pushkin.  Now installed in a larger space, the Italian designer Francesco Bartolomeo Rastrelli (1700–1771) was engage to remodel the assembly to suit, addition amber panels shipped from Berlin.  Renovations and refinements continued to be undertaken during the eighteenth century and when complete, the room covered some 180 square feet (16.7 m3) and contained some six tons (6100 kg) of amber, semi-precious stones and gold leaf.  At the time, it was thought one of the wonders of the modern world.

In the Nazi mind, not only was the Amber Room of German origin but such treasures anyway belonged only in the Reich and it was added to the (long) list of artworks to be looted as part of Operation Barbarossa (the 1941 invasion of the Soviet Union).  As the Wehrmacht advanced on Pushkin, the Russian curators began to attempt to disassemble the panels but their fragility was such it was quickly realized any work done in haste would cause only destruction.  Accordingly, they had carpenters construct a frame over which was glued wallpaper, there not being time even to construct a false wall.  Not fooled, the Nazi looters removed the entire structure, shipping it to be installed in the Königsberg Castle Museum (now in the Russian exclave of Kaliningrad) on the Baltic coast.  However, the tide of the war turned and in 1943 the museum's director received from Berlin instructions to return the room to crates and this had be accomplished by August 1944 when allied bombing raids severely damaged the castle.  Quite what happened to the crates remains unknown.  It may be they were destroyed during the war or were in the hold of a ship sunk in the Baltic but the tales of them being hidden somewhere has never gone away and continues to tantalize, a solitary panel actually found in Bremen in 1997.  The replica room, dedicated in a ceremony in 2004 by Vladimir Putin (b 1952; president or prime minister of Russia since 1999) and Gerhard Schröder (b 1944, Chancellor of Germany 1998-2005) remains on public display at the Tasrskoye State Museum Reserve outside Saint Petersburg.

The "tombstone" headlamps on the 1959 Mercedes-Benz W111 sedans (the so-called Heckflosse) were a variation of the style introduced in 1957 on the 300 SL roadsters (W198) and while much admired, were not lawful for use in the US so a "stacked" arrangement was devised which came informally to be known as "Californian".  So attractive was it found in Europe that ultimately it became available in the rest of the world (RoW) but with one difference: the  factory's solution of integrating the amber turn-signal indicators (the "ambers" or "flashers" to many) and side-marker lamps into the assembly was elegant but didn’t comply with the rules.  As explained by automotive lighting expert Daniel Stern, the lit area was probably compliant (the rules specified a minimum 3½ square inches (22.5 cm2) but the intensity and inboard visibility angles would have been inadequate.  A turn signal with its centre 4 inches (100 mm) or closer to the low-beam lamp had to provide at least 500 candela on-axis, which would be close to impossible for a lamp with this construction; turn signals more than 4 inches from the low-beam needed only to provide at least 200 candela.  The RoW cars (left) were supplied with the original design while for the US market some rather ugly after-market lamps were crudely added to the gaps next to the grill (centre).  Late in the 1960s, the aesthetics were improved somewhat by using a larger unit (right) which emulated the look of a fog-lamp, the US cars by then also suffering the addition of side-marker lights front & rear.

Wednesday, March 1, 2023

Succinite

Succinite (pronounced suhk-sinn-ite)

(1) In mineralogy, Baltic (or “true”) amber, so called because of the succinic acid in the fossil resin: often incorrectly applied to fossilized resin (amber) generally.

(2) In non-technical use, a garnet of amber, especially fossilized resin.

(3) In non technical use, an substance resembling amber.

(4) The color amber.

1816: A creation for scientific purposes in modern English with the sense of “amber-colored mineral”, from the Latin succinum (amber) a variant of sūcinum, the construct being succin + -ite.  The root of succus was the primitive Indo-European sewg & sewk; cognate with sugō (juice; sap of a plant).  The Classical Latin is said to be from a Northern European language and was assimilated in form to the Latin succus & sucus (juice, sap) and related to succinic (in organic chemistry, of or pertaining to succinic acid), from the French succinique.  It was a synonym of ambra (amber).  The -ite suffix was from the French -ite, from the Old French, from the Latin -ītēs, from the Ancient Greek -́της (-ī́tēs).  It had a wide application including (1) the formation of nouns denoting the followers or adherents of a individual, doctrine or movement etc, (2) the formation of nouns denoting descendants of a certain historic (real or mythical) figure (widely used of biblical identities), (3) the formations of demonyms, (4) in geology the formation of nouns denoting rocks or minerals, (5) in archeology, the formation of nouns denoting fossil organisms, (6) in biology & pathology to form nouns denoting segments or components of the body or an organ of the body, (7) in industry & commerce to form nouns denoting the product of a specified process or manufactured product & (8) in chemistry to form names of certain chemical compounds (historically especially salts or esters of acids with names with the suffix -ous.

There’s also the rare adjective succiniferous used with the senses (1) yielding amber, (2) of or pertaining to amber or the plant yielding it & (3) in organic chemistry, of or pertaining to succinic acid.  Ferous (or gerous) are from the Latin ferre & gerere, both meaning “to bear” and surviving in English are over two-hundred words ending in ferous; most of them now obscure and used only in a technical context.  In an illustration of linguistic overlap, the Latin verb succinite was the second-person plural present active imperative of succinō, the construct being sub- (under; below) + canō (sing).  It had the meanings (1) to sing to, to accompany in song & (2) to accord, in agreement with.  Succinite is a noun; the noun plural is succinites.

Succiniferous: Lindsay Lohan wearing Baltic Amber pendant.

The word succinite is sometimes used casually of amber, things which resemble amber or even shades of the color.  Geologists use the more with more precision and within the community there was a long dispute about succinite (Baltic amber), its botanical origin, and methods of distinguishing it from other fossil resins.  The questions were resolved by advances such as infrared spectrometry and speculation about a link with other acids are now held to be unsustainable, the consensus now that amber is coniferous in origin, not as had been suggested in the nineteenth century, from the tree Pinites succinifer.  It seems now clear that the extant Baltic amber came from several species of conifers of the family Sciadopityaceae.  Baltic amber is not a polymer but has a complex, cross-linked  macromolecular structure with the pores filled by components of the structure, an arrangement chemists call a supramolecule, something which both hardens the substance and increases density, accounting for its extraordinary longevity, ancient samples notable for their encapsulated, perfectly preserved plant and animal samples.

Amber alerts.

The term “Amber Alert” is a defined part of public information messaging and analogous with the red/amber/green lights used in traffic signals, amber meaning essentially “proceed with heightened caution and awareness”.  Noting the evidence provided in the well publicized defamation case (John C Depp II v Amber Laura Heard (CL-2019-2911; Fairfax County Circuit Court)), the meme-makers responded.

Most succiniferous: The Amber Room, Catherine Palace, St. Petersburg, 1917.  This is the only known color image of the room.

Last seen (in crates) in 1945, it was either destroyed in the last days of World War II (1939-1945) or dissembled and hidden somewhere or otherwise disposed of.  Between 1979-2003, with early funding from the Federal Republic of Germany (the FRG, the old West Germany), a replica was built and installed in the Catherine PalaceThe golden, jewel-encrusted creation, rendered by artisans and craftsmen from tons of amber, was a gift to Peter the Great (Peter I, 1672-1725; Tsar of Russia 1682-1725) in 1716, celebrating the conclusion of an alliance between Russia and Prussia.  Much admired during the centuries in which it endured wars, pandemics and revolutions, it was looted by the Nazis in the final months of the war, packed into crates which subsequently vanished.  Either they were lost or destroyed in the chaos or hidden away.

Originally installed in the Charlottenberg Palace of Friedrich I (1657–1713; King of Prussia 1701–1713), the Amber Room was a genuine multi-national venture, the design by Andreas Schlüter (1659–1714), a German sculptor in the baroque tradition, the bulk of the construction by the Danish craftsman Gottfried Wolfram (1646-1716), already famous for his skill in rendering amber.  It took over a decade to build and upon completion, Peter the Great expressed his wonderment and in 1716, Frederick William I (1688–1740; King of Prussia 1713-1740) presented it to the Tsar, part of his diplomatic effort to secure the Prussian-Russian alliance against Sweden.  Accordingly, along with a selection of paintings, the room was crated and shipped to Saint Petersburg where it remained until in 1755 it was moved to the Catherine Palace (Tsarskoye Selo (Tasar's Palace)) in Pushkin.  Now installed in a larger space, the Italian designer Francesco Bartolomeo Rastrelli (1700–1771) was engage to remodel the assembly to suit, addition amber panels shipped from Berlin.  Renovations and refinements continued to be undertaken during the eighteenth century and when complete, the room covered some 180 square feet (16.7 m3) and contained some six tons (6100 kg) of amber, semi-precious stones and gold leaf.  At the time, it was thought one of the wonders of the modern world.

In the Nazi mind, not only was the Amber Room of German origin but such treasures anyway belonged only in the Reich and it was added to the (long) list of artworks to be looted as part of Operation Barbarossa (the 1941 invasion of the Soviet Union).  As the Wehrmacht advanced on Pushkin, the Russian curators began to attempt to disassemble the panels but their fragility was such it was quickly realized any work done in haste would cause only destruction.  Accordingly, they had carpenters construct a frame over which was glued wallpaper, there not being time even to construct a false wall.  Not fooled, the Nazi looters removed the entire structure, shipping it to be installed in the Königsberg Castle Museum (now in the Russian exclave of Kaliningrad) on the Baltic coast.  However, the tide of the war turned and in 1943 the museum's director received from Berlin instructions to return the room to crates and this had be accomplished by August 1944 when allied bombing raids severely damaged the castle.  Quite what happened to the crates remains unknown.  It may be they were destroyed during the war or were in the hold of a ship sunk in the Baltic but the tales of them being hidden somewhere has never gone away and continues to tantalize, a solitary panel actually found in Bremen in 1997.  The replica room, dedicated in a ceremony in 2004 by Vladimir Putin (b 1952; president or prime minister of Russia since 1999) and Gerhard Schröder (b 1944, Chancellor of Germany 1998-2005) remains on public display at the Tasrskoye State Museum Reserve outside Saint Petersburg.

Tuesday, February 21, 2023

Ambergris

Ambergris (pronounced am-ber-grees or am-ber-gris)

The waxy, sometimes opaque (the color from ash-gret to jet black) morbid secretion of the sperm whale intestine, usually found floating on the ocean or washed ashore: used in perfumery and (historically), in cooking & folk medicine.

1375–1425: From the Old & Middle French ambre gris (literally gray amber) which replaced the Middle English imbergres.  The construct was thus amber + gris.  Amber was from the Middle English ambre & aumbre, from the Old French aumbre & ambre, from the Arabic عَنْبَر‎ (ʿanbar), (ambergris), from the Middle Persian anbar & ambar (ambergris).  The word displaced the Middle English smulting (from Old English smelting (amber)), the Old English eolhsand (amber), the Old English glær (amber), and the Old English sāp (amber, resin, pomade).  Most etymologists seem to conclude the Arabic anbar entered European languages via Medieval Latin.  Gris was from the Old French or the Old Occitan gris (grey), both from the Frankish grīs, from the Proto-Germanic grīsaz (grey) and was akin to the Old High German grīs (grey) (source of the modern German greis) and the Dutch grijs (grey).  The now largely obsolete spellings were amber-gris & amber gris and the latter was for centuries the usual form, the single-word spelling not predominate until the nineteenth century.  During the seventeenth century, folk etymologies interpreted the form as “amber grease” or “amber of Greece” and regionally both were for some time in common use.  Until the twentieth century, the clipping “amber” was also in use and this was the original form, the “grey” element appended in the fourteenth century as a point of differentiation after the adoption in Romance languages of “amber” as the term to describe Baltic amber (the resin associated with fossils) and gradually, that use came to replace “yellow amber” (ambre jaune).  In modern use, amber is understood as the color and the resin white ambergris is the whale secretion.  Ambergris is a noun; the noun plural is plural ambergrises (although ambergris is in common use).

Lindsay Lohan in an advertisement for FCUK (French Connection UK).  According to FCUK, their fragrances have never used ambergris in the mix.

Curiously, the knowledge of the origin of ambergris was for centuries lost to European science.  Notes about the relationship of the substance to whales were later found in the papers of the eleventh century physician Constantinus Africanus (a Muslim of North African origin who spent the latter part of his life practicing his profession in Italy) but as late as the eighteenth century the matter was still subject to speculation, some of the theories as bizarre as anything contemplated during Antiquity to explain the existence of the mysterious eel and others were also baffled; both the Malays and the Chinese attributed the source of ambergris to either sea-dragons or sea-serpents.  It was though prized for its scent and authors noted the relationship between color and fragrance: the darker the less pleasing one was to the nose.  However, chefs had to be cautious because as noted by the English poet & satirist Alexander Pope (1688-1744): A little whiff of it, by snatches, is very agreeable; but when a man holds a whole lump of it to his nose, it is a stink and strikes you down”.  It was thus much enjoyed but only in small doses and rather as a little truffle might be grated today over a plate of scrambled eggs, so was ambergris once used, eggs with a dusting said to be the favorite dish of Charles II (1630–1685; King of Scotland 1649-1651, King of Scotland, England and Ireland 1660-1685).

Chanel No.5 concentrate.

That a waxy substance which is a mixture of steroid derivatives (consisting mainly of cholesterol) and secreted by the intestinal tract of the sperm whale should be a prized ingredient of the most expensive scents amuses many, some of who enjoy telling those daubed with the stuff they’re wearing “whale shit”, “whale vomit” or “whale snot”.  That’s of course not correct and in some cases, there’s not even a direct connection with the big mammals, even some high-end perfume houses using a synthetic ambroxide rather than ambergris and recent research has determined a gene from balsam fir is a most efficient producer of ambroxide so use of the traditional ingredient might become more rare still.  There’s long been speculation about whether the famous Chanel No.5 even included ambergris and the conclusion of most is that certainly once it did but now nobody is quite sure; Chanel have always declined to comment.  Both the natural and synthetic compounds produce an apparently unique chemical called ambrein and while the fragrance is the most obvious property, the perfume houses prized it also as a fixative, something which extends the endurance of the potency of the fluid (and thus the appeal to the olfactory senses) by reducing the natural propensity to evaporate.  In some jurisdictions the trade in (and even the gathering of) ambergris is prohibited, a reflection of the practice applied to trade in the body parts of other threatened species but the ban has be criticized because no whale is harmed (or even approached) in the harvesting process.

Three shades of grey: White, brown & black ambergris.

Ambergris is expensive for the most obvious reason in a world of supply and demand: rarity.  For reasons not understood, it appears fewer than 2% of sperm whales produce the substance and chunks of it can drift for years in the ocean currents before washing ashore to be collected, either by a lucky beachgoer or (more probably) by professional harvesters who study tidal charts and the migration patterns of whale herds to determine the most likely spots for a crop.  It can certainly be a lucrative business, brokers or perfumers paying thousands of dollars a kilogram and it’s the color (there are three color-based grades) and quality which determines the value, not the volume.  The white ambergris is the highest grade and thus the most expensive, possessing what aficionados describe as a “well-rounded, delicately soft, sweet, marine scent” and one which intensifies with age, an ambergris left undiscovered for years will “cure” finally to mature as a dusty, bright white chunk.  While less exalted, brown ambergris is the most versatile of the three and adaptable for use in more variations of scent, straddling the qualities and characteristics of the white and black.  Brown ambergris is noted for its woodier, tobacco-like fragrance and is probably closest in nature to musk.  Black ambergris is said by some to be almost brutish but, lack the delicate tones of the light shades, this can be an advantage for those formulating something like an aromatherapy oil which will be dispersed over a large space.  Noted for a pungent smell, it uses are limited because to most it seems more faecal than brown or white ambergris, but it’s very primitiveness makes it attractive for the niche market it serves.  In a sense it’s just another commodity so the retail prices do bounce around but the lighter shades tend to sell for as much as US$35 a gram.

Thursday, October 6, 2022

Plastic

Plastic (pronounced plas-tik)

(1) Any of a group of synthetic (and usually hydrocarbon-based) polymer materials which may be shaped when soft and subsequently hardened.

(2) In slang, a credit card, or credit cards collectively (an allusion to the material typically used in their manufacture); money, payment, or credit represented by the use of a credit card or cards.

(3) Something (or a number of things), made from or resembling plastic (sometimes merely descriptive, sometimes as a slur suggesting inferiority in quality).

(4) Capable of being molded or of receiving form; having the power of molding or shaping formless or yielding material.

(5) In psychology, the quality of being easily influenced; impressionable.

(6) In biology of or relating to any formative process; able to change, develop, or grow; capable of adapting to varying conditions; characterized by environmental adaptability.

(7) Figuratively and in slang, something superficially attractive yet unoriginal or artificial; insincerity or fakeness in an individual or group.

(8) A widely used combining form (plastic surgery, plastic bullet, plastic explosive, chloroplastic, protoplastic etc).

(9) A sculptor or molder; any solid but malleable substance (both obsolete).

In physiology, producing tissue (obsolete).

1625–1635: From the Latin plasticus (that which may be molded or relating to that which has been molded), from the Ancient Greek πλαστικός (plastikós) (fit for molding, capable of being molded into various forms; pertaining to molding), from πλάσσω (plássō) (to mold, to form).  In Hellenic use, in relation to the arts, there was plastos (molded, formed) the verbal adjective from plassein (to mold) and from the Greek plastikós was derived both plaster and plasma.  Words vaguely or exactly synonymous (depending on context) include elastic, molded, synthetic, bending, giving, yielding, cast, chemical, ersatz, phony, pseudo, substitute, ductile, fictile, formable, moldable, pliable, pliant, resilient, shapeable, flexible & amenable.  Plastic is a noun, verb & adjective, plastically & plasticly are adverbs and plasticity is a noun; the noun plural is plastics and the seventeenth century spelling plastick is long obsolete.

1968 Chevrolet Corvette L88 (left) & 1962 Trabant 601 Universal (station wagon) (right).

Materials with plastic properties were attractive for car producers for different reasons.  It made low-volume production runs viable because the tooling costs were a fraction of the cost of those using steel or aluminum and in some cases the light weight and ease of modification was an attraction.  In the GDR (German Democratic Republic, the old East Germany), the long-running Trabant's bodywork was made with Duroplast, a composite thermosetting plastic (and a descendant of Bakelite).  A resin plastic reinforced with fibers (the GDR used waste from both cotton & wool processing), it was structurally similar to fibreglass and it's a persistent urban myth that Trabants were made from reinforced cardboard.

The notion of being "capable of change or of receiving a new direction" emerged in 1791 and this idea was picked up in 1839 when the term plastic surgery was first used to describe a procedure undertaken to "remedy a deficiency of structure" is recorded by 1839 (in plastic surgery).  The most familiar use referring to the hydrocarbon-based polymers dates from 1909 when the expression "made of plastic" gained currency which remained literal until 1963 when the US counterculture adopted it as slang meaning "false, superficial", applying it both the political and consumer culture.  The noun plastic (solid substance that can be molded) however appears first to have been used in 1905 and was applied originally to dental molds.  Our plastic age can be said to have begun in 1909 when a US patent was issued for Polyoxybenzylmethylenglycolanhydride (marketed as Bakelite), a resin created by the reaction between phenol & formaldehyde.  Chemists had for years been experimenting with various compounds, much of the research funded by the petroleum industry which was seeking some profitable use for its by-products but Bakelite was the first plastic material which had characteristics which made it suitable for manufacture at scale and adaptability to a wide range of uses.  Thus the first commercially available plastic made from synthetic components which retained its formed shape if heated, it was developed by Belgian chemist Leo Baekeland (1863-1944) while working in the US.

The “plastics” at lunch with plastic packaging on plastic trays, Mean Girls (2004).

Plastic explosive (explosive material with a putty-like consistency) became familiar to the military only in the Second World War and more generally in the 1950s but the first use of the term dates from 1894.  Earlier uses include describing the creative or formative processes in art generally as plastic, an echo of the use which sometime prevailed in Hellenic culture but this faded after a few decades during the seventeenth century although the noun plasticity (capability of being molded or formed; property of giving form or shape to matter) endured after first being noted in 1768.  A nineteenth century adoption was in the biological sciences in the sense of “organisms capable of adapting to varying conditions; characterized by environmental adaptability and in the same era, in engineering it came to mean “of or pertaining to the inelastic, non-brittle, deformation of a material”.

The success of Bakelite triggered a rush of development which produced the early versions of the numerous substances that can be shaped and molded when subjected to heat or pressure.  Plastics gain their plasticity because they consist of long-chain molecules known as polymers which flex but don’t break their bonds when subjected to all but extreme stresses.  They’re almost always artificial resins (but can be made from some natural substances such as shellac) and the best known are Polyvinyl chloride (PVC) and polystyrene.  Useful as it is, plastic (with a life measured in some cases in centuries) has emerged as a significant environmental threat, both as visible waste (and thus a threat in many way to wildlife) and as micro-plastic, microscopic-sized fragments which exist in the environment including the human food chain.

Bella Hadid, Coperni show, Paris Fashion Week, October 2022.

Although many in the industry prefer to talk about natural fibres like silk or linen, it’s plastics like nylon or polyester which make possible both the shape and behavior of many modern garments and their mass-production.  One possibility offered by plastics was illustrated at the 2022 Paris Fashion Week in October when as the concluding set-piece of the Coperni show, Bella Hadid (b 1996) appeared on the catwalk wearing only G-string knickers.  There she paused while for about a quarter hour, two men sprayed her body with what appeared to be white paint.  Once done, a woman emerged to cut a thigh-high asymmetric slit and adjusted things slightly to render an off-the-shoulder look.  Essentially a free-form exercise in 3D printing, the spray-on dress was left deliberately unfinished so as not to detract from the performance; had such a creation been built behind closed doors, either on a human or mannequin, re-usable and adjustable formwork would likely have been used to catch overspray and allow things like hems, straps and splits more precisely to be rendered.  On the night though, the fraying at the edges was just part of the look and Ms Hadid looked wonderful, a thinspiration to the whole pro-ana community.  The term “sprayed on” had long been used to describe skin-tight clothing but the Coperni show lent it a literalism new to most.

On the catwalk, spray-painting a model had been done before, two robots used in Alexander McQueen’s spring 1999 show to adorn Shalom Harlow (b 1973) after the fashion of those used in car assembly plants but that was literally just paint onto a conventional fabric whereas Ms Hadid’s dress appeared over bare (though presumably some sort of lotion was used to suit the properties of the plastic) skin.  The spray-on material is called Fabrican, created by Dr Manel Torres who first demonstrated its properties in 2006.  It’s a liquid fibre, bound by polymers, bio polymers and greener solvents which evaporate on contact with a surface (like Ms Hadid’s skin and including water).  As a fabric, it’s said to have a similar texture to suede and can be manipulated like any other but the feel can be altered depending on the fibers (natural or synthetic) used in the mix and the shape of the nozzle used on the spray device.

Although an eye-catching example of the technology, Fabrican’s place in fashion business is likely to be as an adjunct device rather than one used to create whole garments.  It would be invaluable for Q&D (quick and dirty) solutions such as effecting repairs or adding something but it’s been demonstrated as long ago as 2010 at London Fashion Week without demand emerging though it may yet find a niche.  What more likely beckons is a role in medicine (perhaps especially for military medics in the field) as a sterilized (perhaps even an anti-bacterial) bandage-in-a-can.  Indeed, the style of dress created in Paris is known as the “bandage” dress.

Bella Hadid, Coperni’s 2023 show, Paris, 2022

Shalom Harlow, Alexander McQueen’s spring show, London, 1999.