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

Thursday, August 14, 2025

Quadraphonic

Quadraphonic (pronounced kwod-ruh-fon-ik)

(1) Of, noting, or pertaining to the recording and reproduction of sound over four separate transmission or direct reproduction channels instead of the customary two of the stereo system.

(2) A quadraphonic recording.

(3) A class of enhanced stereophonic music equipment developed in the 1960s.

1969: An irregular formation of quadra, a variant (like quadru) from the older Latin form quadri- (four) + phonic from the Ancient Greek phonē (sound, voice).  All the Latin forms were related quattor (four) from the primitive Indo-European kwetwer (four).  Phonē was from the primitive Indo-European bha (to speak, tell, say) which was the source also of the Latin fari (to speak) and fama (talk, report).  Phonic, as an adjective in the sense of “pertaining to sound; acoustics" was used in English as early as 1793. Those for whom linguistic hygiene is a thing approved not at all of quadraphonic because it was a hybrid built from Latin and Greek.  They preferred either the generic surround sound which emerged later or the pure Latin lineage of quadrasonic (sonic from sonō (make a noise, sound)) which appeared as early as 1970 although it seems to have been invented as a marketing term rather than by disgruntled pedants.  Quadraphonic, quadrasonic and surround sound all refer to essentially the same thing: the reproduction of front-to-back sound distribution in addition to side-to-side stereo.  In live performances, this had been done for centuries and four-channel recording, though not mainstream, was by the 1950s, not uncommon.  Quadraphonic is and adjective but had been used as a noun; the (equally irregular) noun plural is quadraphonics.

Surround sound

Quadraphonic was an early attempt to mass-market surround sound.  It used four sound channels with four physical speakers intended to be positioned at the four corners of the listening space and each channel could reproduce a signal, in whole or in part, independent of the others.  It was briefly popular with manufacturers during the early 1970s, many of which attempted to position it as the successor to stereo as the default standard but consumers were never convinced and quadraphonic was a commercial failure, both because of technical issues and the multitude of implementations and incompatibilities between systems; many manufacturers built equipment to their own specifications and no standard was defined, a mistake not repeated a generation later with the CD (compact disc).  Nor was quadraphonic a bolt-on to existing equipment; it required new, more expensive hardware.

Quadraphonic audio reproduction from vinyl was patchy and manufacturers used different systems to work around the problems but few were successful and the physical wear of vinyl tended always to diminish the quality.  Tape systems also existed, capable of playing four or eight discrete channels and released in reel-to-reel and 8-track cartridge formats, the former more robust but never suited to the needs of mass-market consumers.  The rise of home theatre products in the late 1990s resurrected interest in multi-channel audio, now called “surround sound” and most often implemented in the six speaker 5.1 standard.  Modern electronics and the elimination of vinyl and tape as storage media allowed engineers to solve the problems which beset quadraphonic but there remain audiophiles who insist, under perfect conditions, quadraphonic remains the superior form of audio transmission for the human ear.

Highway Hi-Fi record player in 1956 Dodge.

First commercially available in 1965, the eight-track cartridge format (which would later become the evil henchman of quadraphonic) convinced manufacturers it was the next big thing and they rushed to mass-production and one genuine reason for the appeal was that the 8-track cartridge was the first device which was practical for use as in-car entertainment.  During the 1950s, the US car industry had offered the option of record players, neatly integrated into the dashboard and in the relatively compact space of a vehicle's interior, the sound quality could be surprisingly high.  Although not obviously designed with acoustic properties optimized for music, the combination of parallel flat surfaces, a low ceiling and much soft, sound absorbing material did much to compensate for the small size and range offered by the speakers.  However, although they worked well when sitting still in showroom or in certain vehicles, on the road things could be different.  The records (the same size as the classic 7 inch (180 mm) 45 rpm "singles") played by means of a stylus (usually called "the needle") which physically traced the grooves etched into the plastic disks rotating at 16.66 rpm which, combined with an etching technique called "ultra micro-grooving" meant the some 45 minutes of music were available, a considerable advance on the 4-5 minutes of the standard single.  The pressings were also thicker than other records, better to resist the high temperatures caused by heat-soak from the engine and the environment although, in places like Arizona, warping was soon reported.  To keep the stylus in the track, the units were fitted with a shock-absorbing, spring enclosure and a counterweighted needle arm.  Improbably, in testing, the system performed faultlessly even under the most adverse road conditions so the designers presented the product for corporate approval.  At that point there was a delay because the designers worked for the Colombia Broadcasting Corporation (CBS) which had affiliations with thousands of radio stations all over the country and no wish to cannibalize their own markets; if people could play records in their cars, the huge income stream CBS gained from advertising would be threatened as drivers tuned out.  The proposal was rejected.

Highway Hi-Fi record player in 1956 Plymouth.

Discouraged but not deterred, the engineers went to Detroit and demonstrated the players to Chrysler which had their test-drivers subject the test vehicles to pot-holes, railway tracks and rolling undulations.  The players again performed faultlessly and Chrysler, always looking for some novelty, placed an order for 18,000, a lucrative lure which convinced even CBS to authorize production, their enthusiasm made all the greater by the proprietary format of the disks which meant CBS would be the exclusive source.  So, late in 1956, Chrysler announced the option of "Highway Hi-Fi", a factory-installed record player mounted under the car's dashboard at a cost of (US$200 (some US$1750 in 2023 terms)).  Highway Hi-Fi came with six disks, the content of which reflected the reactionary tastes of CBS executives and their desire to ensure people still got their popular music from radio stations but the market response was positive, Chrysler selling almost 4000 of the things in their first year, the early adopters adopting with their usual alacrity.

The second generation of players used standard 45 rpm singles: Austin A55 Farina (left) and George Harrison's (1943–2001) Jaguar E-Type S1 (right); all four Beatles had the players fitted in their cars and lead guitarist Harrison is pictured here stocking his 14-stack array.  The lady on the left presumably listened to different music than the Beatle on the right (although their in-car hardware was identical) but tastes can't always be predicted according to stereotype; although he disapproved of most modern music, Rudolf Hess (1894–1987; Nazi deputy Führer 1933-1941) told the governor of Spandau prison (where he spent 40 of his 46 years in captivity) he enjoyed The Beatles because their tunes "were melodic".  

At that point, problems surfaced.  Tested exclusively in softly-sprung, luxury cars on CBS's and Chrysler's executive fleets, the Highway Hi-Fi had to some extent been isolated from the vicissitudes of the road but when fitted to cheaper models with nothing like the same degree of isolation, the styluses indeed jumped around and complaints flowed, something not helped by dealers and mechanics not being trained in their maintenance; even to audio shops the unique mechanism was a mystery.  Word spread, sales collapsed and quietly the the option was withdrawn in 1957.  The idea however didn't die and by the early 1960s, others had entered the field and solved most of the problems, disks now upside-down which made maintaining contact simpler and now standard 45 rpm records could be used, meaning unlimited content and the inherent limitation of the 4 minute playing time was overcome with the use of a 14-disk stacker, anticipating the approach taken with CDs three decades later.  Chrysler tried again by the market was now wary and the option was again soon dropped.

1966 Ford Mustang with factory-fitted 8-track player.

Clearly though, there was demand for in-car entertainment, the content of which was not dictated by radio station programme directors and for many there were the additional attractions of not having to endure listening either to advertising or DJs, as inane then as now.  It was obvious to all tape offered possibilities but although magnetic tape recorders had appeared as early as 1930s, they were bulky, fragile complicated and expensive, all factors which mitigated against their use as a consumer product fitted to a car.  Attention was thus devoted to reducing size and complexity so the tape could be installed in a removable cartridge and by 1963, a consortium including, inter alia, Lear, RCA, Ford & Ampex had perfected 8-track tape which was small, simple, durable and able to store over an hour of music.  Indeed, so good was the standard of reproduction that to take advantage of it, it had to be connected to high quality speakers with wiring just as good, something which limited the initial adoption to manufacturers such as Rolls-Royce and Cadillac or the more expensive ranges of others although Ford's supporting gesture late in 1965 of offering the option on all models was soon emulated.  Economies of scale soon worked its usual wonders and the 8-track player became an industry standard, available even in cheaper models and as an after-market accessory, some speculating the format might replace LP records in the home.

Lindsay Lohan's A Little More Personal (Raw) as it would have appeared if released in the 8-Track format.

That never happened although the home units were widely available and by the late 1960s, the 8-track was a big seller for all purposes where portability was needed.  It maintained this position until the early 1970s when, with remarkable suddenness, it was supplanted the the cassette, a design dating from 1962 which had been smaller and cheaper but also inferior in sound delivery and without the broad content offered by the 8-track supply system.  That all changed by 1970 and from that point the 8-track was in decline, reduced to a niche by late in the decade, the CD in the 1980s the final nail in the coffin although it did for a while retain an allure, Jensen specifying an expensive Lear 8-track for the Interceptor SP in 1971, despite consumer reports at the time confirming cassettes were now a better choice.  The market preferring the cheaper and conveniently smaller cassette tapes meant warehouses were soon full of 8-track players and buyers were scarce.  In Australia, GMH (General Motor Holden) by 1975 had nearly a thousand in the inventory which also bulged with 600-odd Monaro body-shells, neither of which were attracting customers.  Fortunately, GMH was well-acquainted with the concept of the "parts-bin special" whereby old, unsaleable items are bundled together and sold at what appears a discount, based for advertising purposes on a book-value retail price there’s no longer any chance of realizing.

1976 Holden HX LE

Thus created was the high-priced, limited edition Holden LE (not badged as a Monaro although it so obviously looked like one that they've never been known as anything else), in "LE Red" (metallic crimson) with gold pin-striping, Polycast "Honeycomb" wheels, fake (plastic) burl walnut trim, deep cut-pile (polyester) carpet and crushed velour (polyester) upholstery with plaid inserts over vinyl surrounds in matching shades; in the 1970s, this was tasteful.  Not exactly suited to the image of luxury were the front and rear spoilers but they too were sitting unloved in the warehouse so they became part of the package and, this being the 1970s, rear-seat occupants got their own cigar lighter, conveniently located above the central ashtray.  Not designed for the purpose, the eight-track cartridge player crudely was bolted to the console but the audio quality was good and five-hundred and eighty LEs were made, GMH pleasantly surprised at how quickly they sold.  When new, they listed at Aus$11,500, a pleasingly profitable premium of some 35% above the unwanted vehicle on which it was based.  These days, examples are advertised for sale for (Aus$) six-figure sums but those who now buy a LE do so for reasons other than specific-performance.  Although of compact size (in US terms) and fitted with a 308 cubic inch (5.0 litre) V8, it could achieve barely 110 mph (175 km/h), acceleration was lethargic by earlier and (much) later standards yet fuel consumption was very high; slow and thirsty the price to be paid for the early implementations of the emission control devices bolted to engines designed during more toxic times.

1976 Holden HX LE Polycast "Honeycomb" wheel (14 x 7").

The Polycast process used a conventional steel wheel with a decorative face of molded polyurethane, attached with mechanical fasteners or bonded using adhesives (in some, both methods were applied) and although some snobs still call them "fake alloy" wheels, legitimately, they're a category of their own.  Because the rubbery, molded plastic fulfilled no structural purpose, designers were able to create intricate shapes which would then have been too delicate or complex to render (at an acceptable cost) in any sort of metal.  By consensus, some of the Ploycast wheels were among the best looking of the decade and, unstressed, they were strong, durable and long-lasting while the manufacturers liked them because the tooling and production costs were much lower than for aluminium or magnesium-alloy.  Another benefit was, being purely decorative (essentially a permanently attached wheelcover), their use faced no regulatory barriers; US safety rules were even then strict and Citroën at the time didn't both seeking approval for the more exotic "resin" wheels offered in Europe on the SM).

Aftermath of the pace car crash, Indianapolis 500, 29 May 1971; dozens were injured but there were no fatalities, despite impact with the well-populated camera stand being estimated at 60 mph (100 km/h).

The Holden LE's wheels came straight from the Pontiac parts bin in the US where they'd first appeared on the 1971 Firebird Trans-Am.  The concept proved popular with manufacturers and a set of Motor Wheels' "Exiter" (14" x 7", part number 36830 and advertised also as "Exciter") was fitted to the Dodge Challenger Pace car which crashed during the 1971 Indianapolis 500.  The crash was unrelated to the wheels, the driver (one of the Dodge dealers providing the pace car fleet) blaming the incident on somebody moving the traffic cone he'd used in practice as his pit-lane braking marker.    Motor Wheel's advertising copy: “What wheel can survive this beating?” and “...the new wheel too tough for the 'mean machine'” predated the crash at Indianapolis and was intended to emphasise the strength of the method of construction.

Twenty years on, the “parts bin special” idea was a part of local story-telling.  Although most doubt the tale, it's commonly recounted the 85 HSV VS GTS-R Commodores Holden built in 1996 were all finished in the same shade of yellow because of a cancelled order for that number of cars in "taxi spec", the Victorian government having mandated that color for the state's cabs.  While a pleasing industry myth, most suspect it's one of those coincidences and the government's announcement came after the bodies for the GTS-R had already been painted.  Being "taxi yellow" doesn't appear to have deterred demand and examples now sell for well into six figures (in Aus$).      

1971 Holden HQ Monaro LS 350

The overwrought and bling-laden Holden LE typified the tendency during the 1970s and of US manufacturers and their colonial off-shoots to take an elegant design and, with a heavy-handed re-style, distort it into something ugly.  A preview of the later “malaise era”, it was rare for a facelift to improve the original.  The HQ Holden (1971-1974) was admired for an delicacy of line and fine detailing; what followed over three subsequent generations lacked that restraint although to be fair, while the last of the series (HZ, 1977-1980) ascetically wasn't as pleasing as the first, dynamically, it was much-improved.

In English, malaise was an unadapted loanword from the French malaise (ill ease), the construct being mal- (bad, badly) + aise (ease).  It was used to describe (1) a feeling of general bodily discomfort, fatigue or unpleasantness (sometimes associated with the onset of illness), (2) an ambiguous feeling of mental or moral depression (the sense tending more to “melancholy” than “angst”) and (3) ill will or hurtful feelings for others.  The US cars of the years between 1974-1984 (some say it went on a bit longer) came to be called “malaise era” cars, the name from the thoughtful but perhaps unfortunate “Crisis of Confidence” address Jimmy Carter (1924-2024; US president 1977-1981) delivered in July 1979.  Carter’s years of malaise remains emblematic the America of the late 1970s (a time of stagflation, oil-shock induced energy price-rises & shortages, high interest rates and general gloom) but the details have become blurred.  The use of the word “malaise” emerged from a retreat the president had convened at the Camp David retreat after concluding neither he, his advisors or the entire machinery of government could come up with solution to the nation’s many problems.  Attended by notables from the clergy, academia and other realms including the governor of Arkansas, BillClinton (b 1946; US president 1993-2001), the curious event prompted one historian to describe it as “…the most remarkable exercise in presidential navel-gazing in American history…” but what did lodge in Carter’s memory was an observation by the pollster Patrick Caddell (1950–2019) that after some fifteen years of trauma including assassinations, race riots, the war in Vietnam and Watergate, the nation was experiencing a “malaise” and the president decided this notion would be the centrepiece of his address to the people.

Malaise: 1978 Ford Mustang II King Cobra.

An emblematic malaise era machine, twenty-first century viewers would be surprised to learn it was possible for a relatively small, light car with a 302 cubic inch (4.9 litre) V8 to deliver such anaemic performance.  However, the Mustang II (1973-1978) was the the right car for the right car (debuting some weeks before the first oil shock) and was a great success.

The word “malaise” wasn’t included in the text of Carter’s speech but, replete with phrases like “…strikes at the very heart and soul and spirit of our national will…” & “…crisis of confidence…”, the tone was clear and almost universally the press called it the “malaise speech”.  Despite what has long been the popular perception, at the time the speech was not a political disaster and was well-received, Carter’s approval ratings surging; it was only as the year unfolded he came to be damned by his own words and if any single term is now associated with his unhappy single term, it's “malaise”.  As was customary for presidential addresses of this nature, the speech was nationally televised live by the three major commercial networks (ABC (American Broadcasting Company), CBS (Columbia Broadcasting System) & NBC (National Broadcasting Company)) and simultaneously broadcast by many radio stations, the total audience estimated at some 65 million (there was then no FoxNews but it's not difficult to predict what the nature of that commentary would have been).  Given the coverage, it’s certain the address contributed greatly to the eventual public disillusionment with the president and may thus have been an example of videomalaise (a term from late 1990s political science which linked voters’ decreasing trust in politicians with depictions of the latter on televised news).

Honorable exception: 1973 Pontiac Firebird Trans-Am SD-455.

Available only on the Firebird (Formula or Trans-AM) in 1973 & 1974, the SD-455 was one of the few bright spots of the malaise era although it did need slightly to be detuned for commercial release, its original 310 (HP) horsepower configuration able to pass the EPA's (Environmental Protection Authority) emission tests only if a devious "cheater" device was installed (shades of Volkswagen's later "dieselgate" although Pontiac got off with nothing more than a "slap on the wrist" rather than the billions it cost the equally guilty Germans).  The production version was rated at 290 HP which was still enough to make it the powerful US car of its time.

The "malaise era" cars were so named because compared with the previous generations, they were heavier, slower, thirstier and less pleasant to drive, a collection of characteristics which weren't the fault of President Carter but he had the misfortune to be in the White House at the same time.  They were of course safer and less polluting but those advantages were hidden while the ugliness of the battering-ram bumper-bars, reduced power and sometimes tiresome driving characteristics were obvious.  When speaking of these mostly unlamented machines, the phrase “Malaise Era” is believed to have been coined by writer Murilee Martin (the pen name of Phil Greden) who used it first in 2007 on the website Jalopnik.   

1973 Ford Falcon XA GT Hardtop (RPO83).

In the era of the Holden LE, Ford Australia had it's own problem with unwanted two-door bodyshells.  Released too late to take advantage of what proved a market fad, Ford’s Falcon Hardtops (XA; 1972-1973, XB; 1973-1976 & XC; 1976-1979) never enjoyed the success of Holden’s Monaro (1968-1976), Chrysler’s Valiant Charger (1971-1978) or even that of Ford’s own, earlier Falcon Hardtop (XM; 1964-1965 & XP; 1965-1966).  The public’s increasing and unpredicted uninterest in the style meant that by 1976, like Holden, Ford had languishing in unwanted in their hands hundreds of body-shells for the big (in Australian terms although in the US they would have been classed “compacts”) coupés.  When released in 1972 Ford’s expectation was it would every year sell more than 10,000 Hardtops but that proved wildly optimistic and not even discounting and some “special editions” did much to stimulate demand.  By 1977 sales had dropped to a depressing 913 and with over 500 bodies in stock, the projection no more than 100 would attract buyers meant a surplus of 400; an embarrassing mistake.

Edsel Ford II with Falcon Cobra #001, publicity shot, Ford Australia's Head Office, Campbellfield, Victoria.  The badge below the Cobra decal reads 5.8; Australia switched to the metric system in 1973 but because of the nature of the machines, almost always the V8s are described either as 302 (4.9) or 351 (5.8), cubic inches being a muscle car motif. 

Scrapping them all had been discussed but in Australia at the time was Edsel Ford II (b 1948), great-grandson of Henry Ford (1863-1947), grandson of Edsel Ford (1893–1943) and the only son of Henry Ford II (1917–1987).  The scion had been sent to southern outpost to learn the family business and been appointed assistant managing director of Ford Australia; his solution profitably to shift the surplus hardtops was hardly original but, like many sequels, it worked.  What Edsel Ford suggested was to use the same approach which in 1976 had been such a success when applied in the US to the Mustang II (1973-1978): Create a dress-up package with the motifs of the original Shelby Mustangs (1965-1968), the most distinctive of which were the pair of broad, blue stripes running the vehicle’s full length.  In truth, the stripes had been merely an option on the early Shelby Mustangs but so emblematic of the breed did they become it’s now rare to see one un-striped.  The blinged-up Mustang IIs had been dubbed “Cobra II” and although mechanically unchanged, proved very popular.  One (unverified) story which is part of industry folklore claims the American’s suggestion was initially rejected by local management and discarded before a letter arrived from Ford’s Detroit head office telling the colonials that if Edsel Ford II wanted a Falcon Cobra with stripes, it must be done.  As Edsel's father once told a Lee Iacocca (1924–2019) who seemed to be getting ideas above his station: "Don't forget my name is on the building". 

Falcon Cobra #31.  The rear-facing bonnet (hood) scoop was the most obvious visual clue identifying the Option 97 (#002-031) cars although the after market responded and it became possible to buy replica scoops as well as the decals and plaques for those who wanted their own "Cobra look".

The Australian cars thus came to be “Cobra” and as well as providing a path to monetizing what had come to be seen as dead stock, the cars would also be a platform with which Ford could homologate some parts for use in racing.  The latter task was easy because in November 1977 Ford had built 13 “special order” XC Hardtops which conformed with the “evolution” rules of the Confederation of Australian Motor Sport (CAMS, then the regulatory body) for homologating parts for Group C touring car events.  Cognizant of the furore which had erupted in 1972 when high-output engines were homologated in road cars, the changes were mostly about durability and included enlarged rear wheel wells to accommodate wider wheels and tyres, a reverse hood (bonnet) scoop which drew desirable cool-air from the low-pressure area at the base of the windscreen, twin electric fans (switchable from the cockpit) which replaced the power-sapping engine-driven fan, a front tower brace (K-brace) which stiffened the body structure, an idler arm brace and front and rear spoilers.

Falcon Cobra #094 which was one of the "fully optioned" of the Option 96 build (#081-200 including the 351 V8, air-conditioning, power steering & power windows).

A prototype Falcon Cobra was built in April 1978 with production beginning the following July.  Unusually, all were originally painted Bold Blue before the areas which would become the stripes and the sill & wheel-arch highlights was masked with a coating of Sno White was painted over the top (thin Olympic (Blaze) Blue accent stripes separated the colors and “Cobra” decals were fitted to the sides and rear).  Each of the 400 built was fitted with a sequentially numbered plaque (001 to 400) on the dash and the production breakdown was:

#001: Created for promotional use, it was allocated for the photo-sessions from which came the images used in the first brochures (351 automatic).

#002-031: The Option 97 run which contained the parts and modifications intended for competition and produced in conformity with CAMS’s “evolution” rules (351 manual).

#032-041: 351 manual with air-conditioning (A/C) & power steering (P/S).

#042-080: 351 manual with A/C, P/S & power windows (P/W).

#081-200: 351 automatic with A/C, P/S & P/W.

#201-300: 302 manual.

#301-360 (except 351): 302 automatic with A/C & P/S.

#351: 351 manual.

#361-400: 302 automatic with A/C, P/S & P/W.

Moffat Ford Dealers team cars in the Hardie-Ferodo 1000 at Bathurst, finishing 1-2 in 1977 (left) and on the opening lap in 1978 (right).  In 1978, the cars (actually 1976 XB models modified to resemble XCs) matched their 1977 qualifying pace by starting second & third on the grid but in the race both recorded a DNF (did not finish). 

The Option 97 run (#002-031) included the modifications fitted to the 13 cars built in November 1997 but also included was engine & transmission oil coolers, a tramp rod (fitted only to the left-side because most racing in Australia is on anti-clockwise circuits and most turns thus to the left) and a special front spoiler which directed cooling air to the front brakes.  Visually, the Option 97 run was differentiated from the rest by the (functional) bonnet scoop and a pair of Scheel front bucket seats (part number KBA90018) in black corduroy cloth. Collectively, the 370 Option 96 and 30 Option 97 made up the 400 SVP (Special Value Pack) that was the Falcon Cobra.  The Cobra’s blue & white livery appeared on the race tracks in 1978 but the best known (the pair run by Allan Moffat's (v 1939) “Moffat Ford Dealers” team were actually modified XB Hardtops built in 1976 and the same vehicles which had completed the photogenic 1-2 at Bathurst in 1977.

Saturday, April 4, 2020

Acid

Acid (pronounced as-id)

(1) In chemistry, a compound usually having a sour taste and capable of neutralizing alkalis and reddening blue litmus paper, containing hydrogen that can be replaced by a metal or an electropositive group to form a salt, or containing an atom that can accept a pair of electrons from a base. Acids are proton donors that yield hydronium ions in water solution, or electron-pair acceptors that combine with electron-pair donors or bases; having a pH value of less than 7.

(2) In chemistry, any compound which easily donates protons (a Brønsted acid); any of a class of water-soluble compounds, having sour taste, that turn blue litmus red, and react with some metals to liberate hydrogen, and with bases to form salts; any compound that can accept a pair of electrons to form a covalent bond (a Lewis acid).

(3) A substance sour, sharp, or biting to the taste; tart; having the taste of vinegar.

(4) Something, as a remark or piece of writing, that is sharp, sour, or ill-natured.

(5) A slang term for the hallucinogenic drug Lysergic acid diethylamide (LSD).

(6) In metallurgy, noting, pertaining to, or made by a process in which the lining of the furnace, or the slag that is present; functions as an acid in high-temperature reactions in taking electrons from oxide ions: usually a siliceous material, as sand or ganister.

(7) Of or pertaining to an acid; acidic.

(8) In pop music, a genre that is a distortion (as if hallucinogenic) of an existing genre, as in acid house, acid jazz, acid rock etc.

1620-1630: From the French acide, from Latin acidus (sour, sharp, tart (and used also figuratively to suggest "disagreeable” etc)), adjective of state from acere (to be sour, be sharp) and akin to ācer (sharp) & acētum (vinegar), from aceō (I am sour); doublet of agita.  Root was the primitive Indo-European ak (be sharp, rise (out) to a point, pierce).

The figurative use (sour-tempered; acerbic) in English dates from 1775 and came to be applied to intense colors after 1916.  The process of the acid dye was invented in 1888 and used an acid bath. The “acid test” is American English from 1881, originally a quick way to distinguish gold from similar metals by application of nitric acid, it came to be used figuratively (and not always accurately) in the same senses as “litmus test”.  The “Acid drop”, a kind of hard sugar candy flavored with tartaric acid, was first sold in 1835, the noun “drop” applied in the sense of a lozenge.  The noun appeared in the 1690s, derived from the adjective and was originally applied (rather loosely) to just about any substance tasting like vinegar; the more precise parameters defined only in the early eighteenth century as the techniques of modern chemistry came to be refined.  In the chemical sense, the antonym is alkaline.  The term “acid rain” (highly acidic rain caused by atmospheric pollution) was in 1872 coined by Scottish chemist (Robert) Angus Smith (1817–1884) although it wouldn’t be for another hundred years before if came into general use.  Diana, Princess of Wales (1961–1997) coined a nickname for her step-mother, Raine Spencer (1929-2016): Acid Raine.  

Acid as a slang term for the hallucinogenic drug Lysergic acid diethylamide (LSD) dates from 1966.  From the same year “acid rock” was originally a descriptor applied to music performed by those who were tripping on LSD (or what they sounded like suggested they might be) but, as acid rockers, soon applied equally to the audience.  The adjective before long was bolted onto a wide variety of pop music (acid jazz, acid folk etc), acid house from 1988 probably the most enduring as a marketing term.  Not until October 1968 was LSD prohibited in the US by being classified as a Schedule I controlled substance under the Staggers-Dodd Bill which meant it became unlawful to manufacture, possess or distribute the stuff.  This was formalized in 1970 when, as part of Richard Nixon's (1913-1994; US president 1969-1974) "War on Drugs", it was listed as a Schedule 1 substance (those considered to have a high potential for abuse and no accepted medical use) in the Controlled Substances Act (1970). 

LSD-25 Auto.

Cross-breeding has produced many strains of marijuana but there's also cross-breeding in marketing: "LSD-25 Auto" is a brand-name of weed.  The retailers recommend LSD-25 Auto to those who “love purple strains”, praising her “tightly packed trichomes”… “clustered around the hypnotic purple shining buds that have a stacked and long characteristic”.  Bag appeal” is said to be “on the next level” and able to “blast you into another dimension and keep you there”.  Being “mind-bending and certainly on the trippy side”, she’s said to be “best suited for smokers with a high tolerance to cerebral roller coasters and those who enjoy high concentration levels and spurts of creativity”.  For those still unsure, they caution that “novice smokers should take in moderation”.

Cutaway drawing of limited slip differential (LSD).

LSD is also the abbreviation for the limited slip differential, a device used in motor vehicles which allows a differential’s two output shafts to rotate at different speeds within a defined permissible difference in speed.  LSDs are used to improve traction under extreme conditions and the usual slang is “slippery-diff”.  LSD was also the historic abbreviation for the currency denominations used by UK prior to the decimalization of Sterling in 1971.  Although pre-1971 Sterling (based on there being 12 pennies to the shilling and 20 shillings to the pound) also used guineas, half crowns, threepenny bits, sixpences and florins, LSD referenced just the base units: pounds, shillings and pence.  The abbreviation LSD dates from Ancient Rome when a pound of silver was divided into 240 pence (or denarius) and the Latin currency denominations were librae, solidi, and denarii.  In veterinary science, LSD is also the standard abbreviation for lumpy skin disease, a viral disease of cattle and water buffalo.

Lindsay Lohan in Peter Thomas Roth’s campaign promoting Water Drench Hyaluronic Cloud Hydra-Gel Eye Patches.

The active ingredient in the patches is hyaluronic acid, a gooey, slippery substance produced naturally throughout the body and at its highest concentration in the eyes, joints and skin.  Best visualized as a lubricant, it works by providing a fluid cushion between tissues which would otherwise grind against each other.  As a lubricant, hyaluronic acid has remarkable properties, one teaspoon of the stuff able to absorb and retain some 6 US gallons (22¾ litres) of water, a reason why it’s used in the treatment of dry eyes and is a popular additive in in moisturizing creams, lotions, ointments and serums.  Hyaluronic acid is often produced by fermenting certain types of bacteria (rooster combs (the red, Mohawk-like growth on top of a rooster’s head and face) a common source) something the beauty industry dwells on less than the use to enhance the way skin stretches and flexes, reducing wrinkles.  It said also to be helpful in wound healing and the reduction in scarring.

Because of the popular association science fiction and gaming with toxic, flesh dissolving fluids (sometimes flowing through the veins of aliens) the word “acid” evokes horror in many but the body naturally produces many acids and it depends on these interacting with everything else to ensure good health and acids in many forms are in every diet.  An apple (a typical example containing up to 300 chemicals) for example includes pantothenic acid (B5), citric acid, tartaric acid & acetic acid while its taste depends on the concentration of malic acid.  Pantothenic is a combination of pantoic acid and β-alanine, the name pantohenic from the Greek πάντοθεν (pantothen) (from everywhere), the name chosen by chemists because, at least in tiny quantities, it’s present in almost all foods.  Familiar too is the pain-killer aspirin, now taken by many in low-dose form (100 mg or 1½ grains), a regime first recommended as a blood-thinner for those with certain risk factors for heart disease but later adopted by those impressed with the apparent protection offered against many internal cancers.  To a chemist, what we call the non-steroidal anti-inflammatory drug aspirin is acetylsalicylic acid (usually pronounced uh-seet-l-sal-uh-sil-ik as-id).  

Lysergic acid diethylamide

LSD, known colloquially as acid, is a drug known for its psychological effects. This includes altered awareness of surroundings, perceptions, and feelings as well as sensations and images that seem real though they are not.  It’s thus most often described as a hallucinogenic and the one which first generated a moral-panic although there has never been any evidence to support the stories which circulated telling cautionary tales of users leaping to their deaths from tall buildings, thinking themselves able to fly.  The urban myths persist to this day.  LSD was created in Basel in November, 1938 by Swiss chemist Albert Hofmann (1906–2008).  Dr Hofmann synthesized LSD after examining the constituents of the well-known medicinal plant Drimia maritima (squill) and the fungus ergot, the breakthrough moment apparently his understanding of the chemical structure of the squill's Scilla glycosides but the famous properties were discovered only serendipitously, his pharmaceutical research for a unrelated purpose.  It wasn't until 1943 that Dr Hofmann conducted any research on the possibilities LSD might offer using what he then regarded as side-effects.  In a long-known scientific tradition, he tested it on himself, thus enjoying the first acid-trip.

Having no bad trips, he continued the research and LSD (acronym for the German Lyserg-säure-diäthylamid) was in 1947 introduced as a commercial medication under the trade-name Delysid and intended for various psychiatric uses.  In the 1950s, the CIA thought the drug might be useful for mind control and chemical warfare, their tests conducted on young servicemen and students, usually without anything even close to informed consent.  Its possibilities interested psychiatrists and it was a popular subject in experimental research, the design of many of which would today appall ethics committees and terrify the lawyers.

President Richard Nixon (1913-1994; US president 1969-1974) explaining to congress aspects the message sent to the Congress on 17 June 1971, requesting the appropriation of an additional US$155 million for a “war on drugs”.  Egil Krogh (1939-2020 left) was deputy director of the Domestic Council and Dr Jerome Jaffe (b 1933, right) was hired to lead a new drug strategy and was usually referred to as Nixon’s “drugs tsar”.  Egil Krogh was later jailed for his involvement in the Watergate affair.

The subsequent recreational use in the Western world, an outgrowth of the 1960s counterculture, resulted in its worldwide prohibition in 1971, one of the most obvious casualties of the Nixon administration’s “war on drugs” which has around the world been for fifty-odd years waged with many consequences but little apparent effect on the demand for drugs, supply now at historically high levels, outpacing the increase in population.  Fifty years on, LSD remains popular though the extent of its use varies according to supply which tends to be dictated more by the economics of production and distribution than demand, the illicit drug business really preferring other substances because LSD is not addictive.  Of late there’s been much renewed interest in the possibilities offered by therapeutic hallucinogenics, the encouraging findings in DMT, LSD, mescaline & psilocybin research drawing in venture capital, the odd start-up picking up not only where things were left off in 1971 but working with more recently synthesised compounds.  Their difficulties are less scientific than regulatory.

Notable moments in Acid Rock

Todd Rundgren: A Wizard, a True Star (1973).

It’s not known if most listeners recovered from this but Todd Rundgren (b 1948) probably never did, his subsequent output so discursive that the many audiences he sought and sometimes gained never coalesced into a consistent following.   A Wizard, a True Star is there to be enjoyed as his psychedelic phase; just don’t expect more of the same.

Grateful Dead: Aoxomoxoa (1969).

Anthem of the Sun (1968) cast such a shadow that few dead heads list Aoxomoxoa as the band’s finest but none deny it’s the most psychedelic the Dead ever got in the studio.  The hippie-dippy vibe is of course more on display on many of the live releases (bootlegs and otherwise) but on Aoxomoxoa there are enough of the long, circular guitar lines for any tripper to keep tripping.  Unlike some of the European electronica which would follow, the Dead sound best through speakers rather than headphones but, at the time, the effect of Quadraphonic divided opinion.

The Jimi Hendrix Experience: Electric Ladyland (1968).

Not all of Jimi Hendrix's (1942–1970) Electric Ladyland was as psychedelic as the reputation suggests but, spread over two disks, there was room to move and psychedelia does tinge much of the blues for which it's remembered.  Devoted trippers however resist the epic length Voodoo Chile and go straight to side three of the original vinyl, setting the turntable to repeat.

Spirit: Twelve Dreams of Dr Sardonicus (1970).

Although not released until the era’s historic moment had passed with the implosion of the San Francisco ecosystem which fed the beast, Twelve Dreams Of Dr Sardonicus is the retrospective encapsulation of the psychedelic and is Spirit’s masterpiece.  Lyrically one long, strange trip, it’s also musically playful, mixing (rather than fusing) the most clichéd of the motifs of jazz, pop & rock.  This is acid rock’s period piece.

Pink Floyd: More (1969).

So much has Dark Side of the Moon (1973) loomed over Pink Floyd that their early work is neglected by all but a few.  In some cases the indifference is not undeserved but, influenced by the late Syd Barrett (1946-2006), before they were a staple of FM radio, Pink Floyd were certainly somewhere on the psychedelic spectrum and while The Piper At The Gates Of Dawn (1967) hints at it, their work in a trilogy of film soundtracks, More (1969), Zabriskie Point (1970) & Obscured by Clouds (1972) tracks the path of acid-rock.  The best approach is said to be to watch Zabriskie Point with the sound turned down while the album plays on repeat and a true aficionado will drop some acid a few minutes before putting on the headphones.

Sheryl Crow (b 1962): There goes the neighborhood

Hey let's party
Let's get down
Let's turn the radio on
This is the meltdown
Get out the camera
Take a picture
The drag queens and the freaks
Are all out on the town
And cowboy Jane's in bed
Nursing a swollen head
 
Sunshine Sally and Peter Ustanov
Don't like the scene any how
I dropped acid on a Saturday night
Just to see what the fuss was about
Now there goes the neighborhood
 
The photo chick made to look sickly
Is standing in her panties in the shower
She plays the guitar in the bathroom
While the police dust her mother's plastic flowers
And Schoolboy John's in jail
Making a killing through the U.S. mail
 
Sunshine Sally and Peter Ustanov
Don't like the scene any how
I dropped acid on a Saturday night
Just to see what the fuss was about
Now there goes the neighborhood
 
This is the movie of the screenplay
Of the book about a girl who meets a junkie.
The messenger gets shot down
Just for carrying the message to a flunkie.
We can't be certain who the villans are 'cuz everyone's so pretty
But the afterparty's sure to be a wing-ding as it moves into your city
 
Sunshine Sally and Peter Ustanov
Don't like the scene any how
I dropped acid on a Saturday night
Just to see what the stink was about
Now there goes the neighbourhood.