Tuesday, June 14, 2022

Acropolis

Acropolis (pronounced uh-krop-uh-lis)

(1) A citadel or high fortified area in an ancient Greek city.

(2) The Acropolis, the citadel of Athens on which the Parthenon, the Erechtheum and other structures stand.

1655-1665: From the Ancient Greek κρόπολις (Akrópolis) (Acropolis), the construct being κρος (ákros) (highest; tip; topmost; summit; elevated part of a Greek city) + πόλις (pólis) (city).  The primitive Indo-European root was ak- (be sharp, rise (out) to a point, pierce) + polis (city), the plural being acropoles.  The Latinized was acro + polis and the plural form either acropolises or acropoleis.  Acropolis is a proper noun and acropolitan is an adjective; the noun plural is acropolises or acropoleis.

The ruin which overlooks Athens is often referred to as “the Acropolis” but that word actually describes the high hill on which the building sits.  An acropolis was an elevated promontory (usually fortified with a citadel) which formed the hub of many cities in Antiquity, a layout chosen because possession of the high-ground is a classic maxim of military planning when constructing a defensive position.  The ancient temple is correctly called the Parthenon although the term “The Acropolis of Athens” remains common.  It’s now a UNESCO World Heritage site.

The site of a number of previously-built temples, the Parthenon was built during the rule of Pericles (circa 495-429 BC) in the Golden Age of Athens (460-430 BC).  Construction took some fifty years and Pericles didn’t live to see it finished and although dominated by the main structure, the acropolis is actually the site of a number of temples and statues.  The Parthenon has been re-purposed over the centuries as power and territorial possession changed.  It’s been a pagan temple, a Christian Church, a residence for Episcopalian clergy, a Mosque, a grain store, a barracks and a munitions powder munitions depot and it was while being used for this latter purpose that the greatest damage in a thousand years was caused.  In a 1687 Venetian siege during the Morean War (1684-1689), the gunpowder magazine suffered a direct hit from an artillery shot and a massive explosion ensued, destroying most of the temple’s internal structure.

It’s from the Parthenon that in 1801, the seventh Earl of Elgin (Thomas Bruce, 1766-1841) removed many of the sculptures, later selling them to the British Museum where a number remain, known as The Elgin Marbles.  Their continued presence in the UK has been a source of dispute between the British and Greek governments for over a century.  The position in London has always been they were a lawful purchase, approved in writing by the local representative of the ruling power in Constantinople.  The view in Athens is they are looted art treasures which should be returned; the Greek Government insisting they should be called The Parthenon Marbles.  The marbles still in Greek hands are on display at the Acropolis Museum in Athens, the display space designed to accommodate those now in London.

The Parthenon, Centennial Park, Nashville, Tennessee.

Designed by architect William Crawford Smith (1837–1899), the Parthenon which stands in Centennial Park, Nashville, Tennessee, was built in 1897 as part of the Tennessee Centennial Exposition.  A full-scale reproduction of the original, it's now an art museum and in the Treasury Room are displayed plaster replicas of the Parthenon Marbles, cast from the original sculptures.  In the nineteenth century, Nashville was one of a number of cities around the world often styled "the Athens of the South" and this doubtless had some influence on the choice of the building as the exposition's centrepiece but while some of the other structures erected for the event were in the style of buildings from antiquity, the Parthenon was the only one to use exact dimensions.

The 1897 structure was intended to last only for the duration of the exposition and was thus built with plaster, wood & brick but such was the local support for its retention it was left standing, soon beginning to deteriorate.  By 1920 however it was a noted tourist attraction and had become accepted as a feature of the city so, on the same foundations, it was rebuilt in concrete, the project completed in 1931.  Concrete however doesn't possess the same qualities of durability as granite and marble so for the replica to maintain its appearance and structural integrity, progressive replacements of components will be required, engineers noting the essentially modular nature of the construction means it may never need wholly to be re-built.

Down the hill from the Acropolis, two and a half-thousand years later: Club Lohan, Iera Odos 30-32, Athens, Greece.

Monday, June 13, 2022

Flair & Flare

Flair (pronounced flair)

(1) A natural or innate talent, aptitude, or ability, a bent or knack for something; instinctive discernment or perceptiveness.

(2) Smartness of style, manner, etc; stylishness or elegance.

(3) In hunting, scent; olfaction, the sense of smell (now rare).

(4) In Scots, a word for floor.

1350–1400: From the Middle English flayre, from the Old English flōr, from the Old French flaire (scent; odour (literally “sense of smell”) which endures in Modern French as flarier), a noun derivative of flairier (to reek; to give off a smell), ultimately from unattested Vulgar Latin flāgrāre, a dissimilated variant of the Classical Latin frāgrāre (to smell sweet), source also of fragrant in Modern English).  The related Latin form was flāgrō, a dissimilated variation of the verb frāgrō (emit a sweet smell).  The present participle is flairing, the past participle flaired).  In modern use, the original sense (scent, sense of smell etc) is rare and restricted to niches such as hunting and historical fiction.  The sense of "special aptitude" is an invention of American English, dating from 1925, probably from hunting and the notion of a hound's innate and extraordinary ability to track scent.  The popular uses now refer to (1) matters of style or (2) a particular talent or aptitude:

He has a flair for the business”.

That was Winston Churchill's (1875-1965; UK prime-minister 1940-1945 & 1951-1955) grudging assessment in 1944 of Field Marshal Sir Alan Brooke (later Lord Alanbrooke; 1883-1963, Chief of the Imperial General Staff (CIGS) 1941-1946) as a general.  It was about as close to praise as the CIGS received from his chief; the prime-minister liking his soldiers dashing and daring rather than cautious and conscientious.  The most common synonyms now (depending on context) include chic, dash, élan, grace, verve, oomph, ability, aptitude, elegance, genius, gift, glamour, knack, mastery, taste, bent, faculty, feeling, head, panache & pizzazz.

Flare (pronounced flair)

(1) To burn with an unsteady, swaying flame, as a torch or candle in the wind; the flame of this type.

(2) To blaze with a sudden burst of flame (often followed by up); the flame of this type.

(3) To start up or burst out in sudden, fierce intensity or activity (often followed by up).

(4) To become suddenly enraged; express sudden, fierce anger or passion (usually followed by up or out).

(5) To shine or glow.

(6) To spread gradually outward, as the end of a trumpet, the bottom of a wide skirt, or the sides of a ship.

(7) To display conspicuously or ostentatiously to display.

(8) To signal by flares of fire or light.

(9) To cause (something) to spread gradually outward in form.

(10) In metallurgy, to heat a high-zinc brass to such a high temperature that the zinc vapors begin to burn; to increase the temperature of (a molten metal or alloy) until a gaseous constituent of the melt burns with a characteristic flame or (of a molten metal or alloy) to show such a flame.

(11) In hydrocarbon extraction, to discharge and burn (excess gas) at a well or refinery.

(12) A bright blaze of fire or light used as a signal, a means of illumination or guidance etc; the device or substance used to produce such a blaze of fire or light.

(13) In fashion, a gradual spread outward in form; as in a skirt or trousers (known also as bell-bottoms).

(14) In engineering, an outward extension, usually as a curvature.

(15) In automotive design, an extension at the wheel arch of the fender (mudguard) to ensure tyres don’t extend beyond the bodywork.

(16) Something that spreads out.

(17) In optics, light, often unwanted or extraneous, reaching the image plane of an optical instrument, as a camera, resulting from reflections, scattering by lenses, and the like.

(18) In photography, a fogged appearance given to an image by reflection within a camera lens or within the camera itself.

(19) In astronomy (commonly as solar flare), a sudden and brief brightening of the solar atmosphere in the vicinity of a sunspot that results from an explosive release of particles and radiation.

(20) In US football (NFL), a short pass thrown to a back who is running toward a sideline and is not beyond the line of scrimmage.

(21) In television, a dark area on a CRT picture tube caused by variations in light intensity (mostly archaic).

(22) In aviation, the final transition phase of an aircraft landing, from the steady descent path to touchdown; to operate an aircraft to transition from downward flight to level flight just before landing.

(23) In pathology, an area of redness on the skin surrounding the primary site of infection or irritation.

(24) In engineering, as flare tube fitting, a flare nut being used to secure the flared tubing’s tapered end to the also tapered fitting, producing a pressure-resistant, leak-tight seal.

(25) In baseball (also as blooper or Texas leaguer), a low-fly ball that is hit in the region between the infielders and the outfielders.

(26) An inflammation such as of tendons (tendonitis) or joints (osteoarthritis).

(27) In pyrotechnics (also as Bengal light or fusee) a colored flare used as a warning on a railroad.  In US use, a parachute flare or Very light.

1540-1550: Of uncertain origin, the verb not appearing in English until the mid-sixteenth century, most etymologists thinking it probably related to the Latin flagrō (I burn) and may be from a Scandinavian source or the Dutch vlederen.  The Norwegian flara (to blaze; to flaunt in gaudy attire) has a similar meaning, but the English word predates it so it’s presumed derivative.  There may be some relationship with the Middle High German vlederen (to flutter (and represented in modern German by flattern)) but the evidence is scant.  In English, the original meaning was “spread out” (as applied to hair (and later structures such as the sides of ships)) leading to a comparison with the Old English flǣre (either of the spreading sides at the end of the nose).  The meaning "shine out with a sudden light" dates from the 1630s while the notion of "spreading out in display" emerged in the 1640s and is the source of the modern association with things which "spread gradually outward".

The noun flare (a giving off of a bright, unsteady light) dates from 1814 and was derived from the verb; from this followed (by 1883) the sense of "signal fire" (1883). Astronomical use dates from 1937.  The general meaning "a gradual widening or spreading" is emerged circa 1910, the best known modern example probably the “flares” (flared trousers), first noted in 1964, actually an adaptation of earlier forms of design but a fashion trend which is associated with the hippie era and lasting until the mid 1970s.  Flares then became suddenly unfashionable but revivals since have been frequent and they now enjoy a standardized niche in the industry.

In idiomatic use, the flare-up (a sudden burst) applied by 1827 to an argument and by 1858 to light, derived from the verbal phrase and contemporary publications noted the vogue flare-up enjoyed as a street expression in 1830s London.  The 1660s noun flatus (wind in the bowels) was a direct borrowing from the Latin flatus (a blowing, breathing, snorting; a breaking wind), past participle of flare (to blow, puff) from the primitive Indo-European root bhle- (to blow).  From this came the 1590s adjective flatulent (affected by digestive gas), from the sixteenth century French flatulent, from the Modern Latin flatulentus, from Latin flatus.

Flare is a verb (used without object) & noun, flared is a verb & adjective and flaring is a verb (the noun derived from the verb).  The present participle is flaring, the past participle flared and the noun plural is flares.  Synonyms, depending on context, include flame, erupt, explode, flash, blaze, blaze, boil over, break out, burn, explode, flare up, flash, flicker, glow, seethe, widen, burst, dart, dazzle, flutter, fume, glare, rant, shimmer & broaden.

Worn with flair: Lindsay Lohan (left) in peach flared trousers, Los Angeles, 2012 and (right) out shopping in flared jeans, Milan, 2015.

1975 Porsche 911S (left) with standard body and 1979 Porsche 930 3.3 (right; often called the 911 Turbo) with flared wheel arches, a body style which came generally to be called the “wide-body”.

1963 AC Shelby Cobra 289 (left, retrospectively dubbed the "slab-side") and 1967 AC Shelby Cobra 427 S/C (right) with flared wheel arches.  Aspects of the bulge-bodied 427 had actually already been seen on competition versions of the 289 and it has for decades been the most popular style of body (regardless of the engine installed) used by producers of replicas, there now being in excess of 50,000 of these, dwarfing the production of the thousand-odd originals.

For many years, most cars have used slightly flared wheel arches but more exaggerated extensions are often added to high-performance models to enable wider wheels and tyres to be fitted.  If the high-performance version is to be a regular-production model, the usual practice is the integrate the flares into the fender.

1975 Holden Torana SL/R 5000 L34 (left) and 2020 Dodge Challenger SRT (right).  Limited production models however often have flares added which are obviously “tacked-on”.  That can be part of their attraction, giving the things the appearance of something obviously intended for competition, emphasizing too their “limited production” status.  The 1975 Torana L34 (and the 1977 A9X) was an extreme example, leaving exposed the bolts attaching the flares to the fenders.

Peter Brock (1945-2006) in his self-built Austin A30 Holden sports sedan (left), Hume Weir, circa 1969 and Harry Lefoe's Hillman Imp (right) at the same circuit in 1971.  Both were typical of the racing cars built by amateurs in the 1960s to compete in events with very loose regulations.  The prevailing theory seems to have been to find the smallest possible car and add to it the largest engine which fell conveniently to hand.  Brock used a 179 cubic inch (2.9 litre) Holden six in the little car which had begun life with a 803 cm3 (49 cubic inch) four yet even that wasn’t the most extreme of the time.  The Hillman Imp's light-weight and diminutive dimensions held great appeal for Australian earth-moving contractor Harry Lefoe (1936-2000) who had a spare 302 cubic inch (4.9 litre) Ford (Windsor) V8 sitting in his workshop.  By then, the Imp was a Chrysler product but because the published guidelines of the Australian Sports Sedan Association (ASSA) restricted engines to those from cars built by the manufacturer of the body-shell, the small-block Ford V8 could be put in an Imp because it had been used in the earlier Sunbeam Tiger.  So the big lump of an iron V8 replaced the Imp's 875 cm3 (53 cubic inch) aluminium four and such was the difference in size that Lefoe insisted his Imp had become "mid-engined" although it seems not to have imparted the handling characteristics associated with the configuration, the stubby hybrid infamous for its tendency to travel sideways.  It was never especially successful but it was loud, fast, spectacular and always a crowd favourite.  Also typical was the simple “flaring” of the wheel arches, easily crafted with sheet metal and often integrated with aerodynamic “improvements” created with by guesswork rather than wind-tunnels or computer emulations.  The technique was known as the “square flare”.

1974 Ford Cologne Capri.  Factories with bigger budgets sometimes use both wind-tunnels and computer emulation to optimize the shape of flares, often using them to direct airflow to radiators or brakes as well as permit the fitment of wider tyres.

1987 Mercedes-Benz 300E (left) and 1991 Mercedes-Benz 500E; note the modest flared wheel arches on the 500E which added about two inches to the width of the car, something which proved surprisingly significant.

In 1991, Mercedes-Benz finally gave the W124 (1984-1995 (body-styles other than the four-door sedan would remain in production until 1997 and 46 500Es were actually built in 1990)) an engine with the power to exploit the fine underpinnings.  The 500E (later E500 when the naming system was updated) was a response to demand from those who hankered after something like the old 300SEL 6.3 (W109 1968-1972) as well as a long-overdue model to compete with BMW’s M5 but, with development of the new S-Class (W140 1991-1998) over-budget and behind schedule, the production work on the 500E project was out-sourced to Porsche.  Porsche’s engineers did a good job mating the 5.0 litre (303 cubic inch) V8 to the chassis, a task which included some modifications to the suspension and a flaring of the wheel arches to accommodate the wider track.  So subtle were the flares that they’re almost imperceptible to the casual viewer and without a standard W124 with which to compare, probably few notice.  That’s not surprising given the 500E was a modest 56 mm (2.2 inches) wider than the more prosaic models (1,796 mm (70.7 in) vs 1,740 mm (68.5 in)).

However, those two-odd inches of additional width created by the wheel arch flares proved an unanticipated obstacle to volume production, the prototype found to be too wide to proceed at several points on the W124 production line.  As a glitch (in communication and systems management rather than engineering), it recalled an incident which afflicted the somewhat more ambitious Hubble Space Telescope (HST) which, upon deployment, was found to have one incorrectly ground mirror which blurred the view.  In software and hardware, NASA found a solution, a part of which was effected during a celebrated (and anyway scheduled) servicing mission.  On Earth, things were simpler for Mercedes-Benz which contracted with Porsche to handle part of the production process, the cars shuttled by truck between the two factories, located a few miles apart in Stuttgart.  That was inconvenient for Mercedes-Benz but fortuitous for Porsche, which, hard-hit by the recession-induced downturn in the sports car market, needed something to make use of their now substantially idle facilities.  The well-publicized arrangement meant it took eighteen days to complete every 500E but it added to the allure of the car and even at a very high price, 10,479 were sold and they were in many ways the blueprint for the AMG range which followed.  Encouraged by the success, the factory released the 400E (1991-1995 and later renamed E420) which, with a 4.2 litre (256 cubic inch) V8, didn’t demand the fitment of the five litre car’s wider track and flared wheel arches.  Being thus able to use the standard W124 production line, it was built at a much lower cost and 22,802 were sold.

Built by Ferrari: 1973 Dino 246GTS with "chairs & flares" options.

The rhyming colloquialism “chairs and flares” (C&F to the Ferrari cognoscenti and these days the early Dinos are an accepted part of the family) is a reference to a pair of (separately available) options available on later production Dino 246s.  The options were (1) seats with inserts (sometimes in a contasting color) in the style used on the 365GTB/4 (Daytona) & (2) wider Campagnolo Elektron wheels (which the factory only ever referred to by size) which necessitated flared wheel-arches.  In the early 1970s the factory wasn’t too punctilious in the keeping of records so it’s not known how many cars were originally built equipped with the wider (7½ x 14” vs 6½ x 14”) wheels but some privately maintained registers exist and on the basis of these it’s believed production was probably between 200-250 cars from a total run of 3569 (2,295 GT coupés & 1,274 GTS spyders (targa)).  They appear to have been most commonly ordered on UK & US market cars (although the numbers for Europe are described as “dubious” and thought an under-estimate; there are also an unknown number in other countries), the breakdown of verified production being:

246GT: UK=22, Europe=5, US=5.
246GTS: UK=21, Europe=2, US=91.

The “chairs and flares” cars are those which have both the Elektron option and the Daytona-style seats but because they were available separately, some were built with only one of the two, hence the existence of other slang terms in the Dino world including “Daytona package”, “Sebring spyders” and, in the UK, the brutish “big arches”.  In 1974, the Dino's option list (in US$) comprised:

Power windows: $270.00
Metalic Paint: $270.00
Leather upholstery: &450.00
Daytona type central seat panels: $115.00
Air-conditioning: $770.00
14 x 7½ wheels & fender flares: $680.00
AM/FM/SW radio: $315.00
Electric antenna & speakers: $100.00

At a combined US$795.00, the C&F combination has proved a good investment, now adding significantly to the price of the anyway highly collectable Dino.  Although it's hard to estimate the added value because so many other factors influence calculation, all else being equal, the premium would seem to to be well over US$100,000.  Because it involves only wheels, upholstery and metal, the modifications are not technically difficult to emulate although the price of a modified vehicle will not match that of an original although unlike some of the more radical modifications to Ferraris (such as conversions to roadsters), creating a C&F out of a standard 246 seems not to lower its value.  These things are always relative; in 1974 the C&F option added 5.2% to the Dino GTS's list price and was just under a third the cost of a new small car such as the Chevrolet Vega. 

Gas flaring on off-shore oil-rig.

It’s surprising gas flaring isn’t more controversial than it is.  A practice which dates from the earliest days of oil extraction, it was originally merely a safety procedure, disposing of the surplus and unwanted gas unavoidably associated with oil production but has long been recognized as wasteful of a valuable natural resource which, if harvested, could be used to generate energy now produced by more polluting sources such as coal.  The volume of gas flared annually (ie burned off in the atmosphere) is sufficient to satisfy the energy needs of all sub-Saharan Africa.  Additionally, the flaring process, which annually burns some 144 billion m3 of gas, is estimated to contribute to the atmosphere about 2.8 kilograms of CO2 equivalent emissions for each m3, resulting in over 400 million tons of CO2 annually and, the methane emissions resulting from the inefficiency of the flare combustion contribute significantly to global warming.  This is especially acute in the medium term because methane is over 80 times more powerful than CO2 as a greenhouse gas so on a 20-year timeframe, the multiplier effect means the annual CO2 equivalent emissions are increased by nearly 100 million tons.  There are technical solutions to this which would remove the need for most flaring as well as providing a valuable energy source less polluting than coal or diesel but, for the oil industry, the economics are not compelling.  Nor, given the relationships between the fossil-fuel industry and politicians, does there seem to be any hint of political will to pursue the issue.

Plenipotentiary

Plenipotentiary (pronounced plen-uh-puh-ten-shee-er-ee or plen-uh-puh-ten-shuh-ree)

(1) A person, especially a diplomatic envoy, invested with full power or authority to transact business on behalf of another.

(2) Invested with full power or authority, as a diplomatic agent; conferring or bestowing full power, as a commission.

(3) Of power or authority, full; absolute

1635-1645: From the French plénipotentiaire, from the Medieval Latin plēnipotentiārius (invested with, having, or bestowing full power(s)) from the Late Latin plēnipotēns, a construct from plēnus (full) + potēns (mighty, powerful) + -ārius (the Latin suffix forming personal nouns corresponding to adjectives).  The primitive Indo-European root was pele-(to fill).  The noun plural is plenipotentiaries.

After the Congress

Historically, a plenipotentiary was a diplomat (or other envoy appointed for some purpose) authorized fully to represent a government and empowered to enter into binding agreements within the terms of reference of their appointment.  Sometime in the twentieth century (it varied with the geography), technological advances rendered diplomatic plenipotentiaries mostly redundant and, outside of the formal language of diplomacy, use as a noun is now rare, and when used, generally refers to any individual with "full powers" in some sense.  The adjectival sense describes something which confers "full powers", such as an edict or assignment.

Anton Alexander von Werner (1843–1915), Congress of Berlin (1881), oil on canvas painting of plenipotentiaries, final meeting at the Reich Chancellery, 13 July 1878.

Prior to the mid-nineteenth century, any form of communication between a diplomat and their government could take literally months and, even in a relatively small and well-connected space like Europe, an exchange of messages could take days.  Ambassadors and other diplomats were thus often granted full (plenipotentiary) powers to represent their government in negotiations with their host nation.  It was the Congress of Vienna (1814–1815), which codified most aspects of the diplomatic relationships between countries and from that point, the ambassador evolved to become the usual title for chiefs of mission (there are exceptions such as within the Commonwealth where the old British Empire title of High Commissioner is retained and the Holy See which appoints papal nuncios).  Generally though, the protocols of the Congress of Vienna continue to be used and ambassadors are still designated and accredited as extraordinary and plenipotentiary, even though technically typically now neither.

Unusually for a word adopted by English, foreign translators rate it difficult to translate.  That’s interesting because essentially the same word exists in a number of Romance languages (the Portuguese plenipotenciário; the French plénipotentiaire; the Romanian plenipotențiar; the Spanish plenipotenciario & the Italian plenipotenziario) with exactly the same meaning.  The Albanian plotfuqishëm sounds similar although it has native roots but other languages have their own equivalents (the German Bevollmächtigt(er), the Dutch gevolmachtigd(e), the Danish fuldmægtig, the Swedish fullmäktig, the Norwegian fullmektig (all Germanic derivatives which are literal parallels).  In the Balkans, there was the Serbian punomoćan (пуномоћан in Cyrillic), the Russian полномочный (полный (full) + мочь (to be in power, to be able)), the Czech zplnomocněný (plno (full) + moc (power)), the Slovak splnomocnený (plno (full) + moc (power)) & the Slovenian pooblaščeni (adjective) & pooblaščênec (noun).  Elsewhere, there was the Polish pełnomocnik (pełno (of full) + moc (power)), the Bulgarian пълномощен (pǎlnomošten), the Finnish täysivaltainen, the Greek πληρεξούσιος (plirexoúsios), the Turkish tam yetkili & the Tatar wäqälätle.

Sunday, June 12, 2022

Phytosuccivorous

Phytosuccivorous (pronounced fahy-toh-suhk-siv-er-uhs)

The general descriptor of creatures which feed on sap, such as certain sucking insects.

1860s: The construct was phyto- + succi- + -vorous.  Phyto- (pertaining to or derived from plants) was from the Ancient Greek φυτόν (phutón) (plant) and a doublet of -phyte.  Succi- was a combining for of the Latin succus (plural succi) (juice), source also of the Modern English succulent.  In pre-modern medicine, succus & succi were terms for the expressed juice of a plant, extracted for medicinal purposes.  The construct of –vorous was the Latin –vor(us) + -ous.  Vorous was from vorō (I devour, greedily I eat) + -us (the suffix used to form adjectives) and the suffix vorous was used to form adjectives with the sense of “habitually eating, feeding on”.  The –ous suffix was from the Middle English -ous, from the Old French –ous & -eux, from the Latin -ōsus (full, full of); a doublet of -ose in an unstressed position.  It was used to form adjectives from nouns, to denote possession or presence of a quality in any degree, commonly in abundance.  In chemistry, it has a specific technical application, used in the nomenclature to name chemical compounds in which a specified chemical element has a lower oxidation number than in the equivalent compound whose name ends in the suffix -ic.  For example sulphuric acid (H2SO4) has more oxygen atoms per molecule than sulphurous acid (H2SO3).  The related forms, used in entomology and the biological sciences include phytosuccivorous, phytosuccivore & phytosuccivory.

Originally described in entomological taxonomy the H. coagulata (later called Homalodisca vitripennis), is a leafhopper from the insect family Cicadellidae.  The surprisingly destructive little bug was later and more mnemonically named the glassy-winged sharpshooter, a not entirely accurate but graphically illustrative description.  Being phytosuccivorous means the insect lives by sucking sap from the plants which make its environment hospitable.  That’s unremarkable but the glassy-winged sharpshooter is one of a number of sap-suckers noted for a still curious aspect of their behavior: They “make it rain” by flinging droplets of pee while feeding on plant juices.  Although the reason the creatures have evolved to do this remains speculative, close observation has allowed biologists to understand the tiny, catapult-like mechanism the sharpshooters use to propel their waste at what turned out to be extraordinary rates of acceleration.

It’d long been known that trees infested with sharpshooters exude a steady pitter-patter of pee and many nature-loving bush-walkers may have probably enjoyed the experience, thinking it a natural climatic phenomenon.  Use of high-speed video capture allowed scientists to observe the process and analysis revealed how the insects release the waste.  Of interest also was that sharpshooters frequently simultaneously “feed & fling”, droplets collecting on a tiny barb called a stylus at the insect’s rear end which, when the droplet reaches a certain weight, induces the stylus to act like spring, the drop flying off the structure as if hurled from a catapult.

In an intriguing example of the complexity of nature often observed at the miniature level, two tiny hairs at the end of the stylus which, by flicking the water at the point of ejection, greatly increase the flinging power (because of the scale, an aspect of design not able to be added to any of the catapults made by humans since antiquity).  As a result, the stylus launches liquid waste with a maximum acceleration 20 times that of Earth’s gravity.  Impressive though that sounds, such findings are not unusual in the physics of very small creatures and it remains uncertain why the pee is flung so far, the current thinking being the sharpshooters try to send it as far as possible lest the sugar-rich fluid attracts predators.  Nor, despite the name, is there any suggestion the sharpshooters are aiming at anywhere or anything in particular, their interest apparently distance rather than direction.  The researchers hope their findings will improve engineering in the field of microfluidics, in which tiny amounts of fluids are manipulated to diagnose disease, sequence DNA, and study cells one at a time.  Already, engineers are experimenting with a design which emulates the sharpshooter's rear end by attaching false eyelashes to an electric motor.

Small though they are, where colonies cluster, the sharpshooters can do serious damage.  The phytosuccivorous pests daily slurp-down and fling-out hundreds of times their body weight and can transmit bacteria that cause diseases in plants and poison the spiders which play a vital role in maintaining insect numbers.  Their technique of feeding and voracious appetite for so many different hosts means the glassy-winged sharpshooters are an effective vector for a number of bacteria which colonizes the creature by forming a biofilm on its mouth-parts.  The infected insect then transmits the disease to additional plants while feeding and even if not susceptible, the newly infected plant becomes a reservoir, holding the bacterium for other sap-suckers to pick up and carry to other plants.  There have been a number of successful attempts at pest management including the use of insecticides, parasitoids (especially wasps) and the impact of naturally occurring pathogens like viruses, bacteria, and fungi, one recently discovered pathogen actually a virus conveniently specific to sharpshooters.  Evidence suggests the most successful approach is the release of broad-spectrum leafhopper parasitoids which reduce the survival rate of the eggs.

Hypaethral

Hypaethral (pronounced hi-pee-thruhl, hahy-pee-thruhl)

In classical architecture, wholly or partly open to the sky.

Circa 15 BC: From the Classical Latin hypaethrus from the Ancient Greek παιθρος (húpaithros or hýpaithros) (open to the sky), from πό (hupó), combining form of πό (hupó) (under) + αθήρ (aithr) (air, ether).  The construct was hyp- (under) + aîthros (clear sky; see ether) + -al (from the Latin adjective suffix -ālis). 

The Roman architect Vitruvius, in his treatise De architectura (circa 15 BC) for the emperor Caesar Augustus (63 BC–AD 14 (also known as Octavian); first Roman emperor, 27-AD 14), used the Latin hypaethrus to describe temples in which the cella (the part of the temple housing an image of the deity) was wholly or partially uncovered.  In the late eighteenth century, English classicists adopted the re-modelled form hypaethral in their works about ancient architecture and another adjective they would employ was cleithral, designating temples with roofed central spaces; cleithral comes from the Ancient Greek kleithra (lattice).

The more modern American spelling is hypethral which probably is preferable but, unlike many US spellings which have made inroads elsewhere in the English speaking world, hypaethral remains the standard form; this is doubtless because it’s a technical word used by tiny subsets of historians, classists and architects.  Both spellings remain technically correct but use within any document needs to be consistent.

Hypaethral Temple at Paestum, Wilkins William, from The Antiquities of Magna Graecia, London, Longman, Hurst, Orme and Rees, MDCCCVII (1807).