Shadow

Shadow (pronounced shad-oh)

(1) A dark figure or image cast on the ground or some surface by a body intercepting light.

(2) Shade or comparative darkness, as in an area.

(3) As “the shadows”, darkness, especially that coming after sunset.

(4) A spectre or ghost.

(5) A mere semblance of something.

(6) A reflected image, as in a mirror or in water (now rare and restricted to literary or poetic use).

(7) In painting, drawing, graphics etc, the representation of the absence of light on a form.

(8) In art, the dark part of a picture, either representing an absence of illumination or as a symbolic device.

(9) In architectural depictions & renderings (as “shades and shadows”) a dark figure or image cast by an object or part of an object upon a surface that would otherwise be illuminated by the theoretical light source.

(10) In Jungian psychology, the archetype that represents man's animal ancestors; an unconscious aspect of the personality.

(11) In pop-psychology (1) a period or instance of gloom, unhappiness, mistrust, doubt, dissension, or the like, as in friendship or one's life or (2) a dominant or pervasive threat, influence, or atmosphere, especially one causing gloom, fear, doubt, or the like (often expressed as “shadow of fear”, “shadow of doubt” et al).

(12) A person who follows another in order to keep watch upon that person (in law enforcement, espionage etc).

(13) To overspread with shadow; to shade.

(14) To cast a gloom over; to cloud.

(15) To screen or protect from light, heat, etc; to provide shade.

(16) To follow and observe (a person).

(17) To represent faintly, prophetically etc. (often followed by forth).

(18) In democratic politics, (of or pertaining to a shadow cabinet or shadow minister) a system whereby an opposing politician formally is appointed to be responsible for matters relating to a particular minister’s areas of authority.

(19) As a modifier (shadow ban, shadow ticket, shadow docket, shadow price, shadow inflation etc), something effected unofficially or without public notice; characterized by secrecy or performed in a way that is difficult to detect; a clandestine approach.

(20) In typography, the “drop shadow” effect applied to lettering.

(21) An uninvited guest accompanying one who was invited (an obsolete, Latinism).

(22) In human resource management, the practice of new appointee accompanying an incumbent during the working day, so as to learn the job.

(23) In computer programming, to make (an identifier, usually a variable) inaccessible by declaring another of the same name within the scope of the first.

(24) In computing, in the graphical Workplace Shell (the WPS, successor to the Presentation Manager (PM)) of the OS/2 operating system, an object representing another object.

Pre-900: From the Middle English noun shadwe, shadu, shadue, shadowe shadow, from the Old English sċeaduwe, sċeadwe & sceadu, the oblique case forms of sċeadu (shadow, shade; darkness; protection).  The Middle English verbs were shadwen, shadwe, shadu & shadue (to shade, provide shade, cast a shadow, protect), from the Old English sceadwian (to cover with shadow, protect) (all derivative of the nouns), from the Proto-West Germanic skadu, from the Proto-Germanic skadwaz (shade, shadow), from the primitive Indo-European skeh & ḱeh- (darkness).  Contemporary forms included the Old Saxon skadowan & skadoian and the Gothic (ufar)skadwjan (to (over)shadow).  Similar forms in other Germanic languages included the Old Saxon skado, the Middle Dutch schaeduwe, the Dutch schaduw, the Old High German scato, the German schatten and the Gothic skadus (shadow, shade).  Shadow is a noun, verb & adjective, shadower is a noun, shadowdy, shadowless & shadow-like are adjectives; the noun plural is shadows.

The shadow-box was a protective display case, usually in the form of interlocking squares and wall-mounted was first advertised in 1892.  The term shadow-figure was a synonym of silhouette, dating from 1851.  Eye-shadow was a term invented for the commercial products which came onto the market in 1918, providing a convenient packaged product to achieve the look women (and apparently not a few men) had been creating for thousands of years.  Shadow-boxing was first noted in 1906, an update of the earlier (1768) shadow-fight.  The verb foreshadow (indicate beforehand was a figurative form, the idea apparently of a shadow thrown before an advancing material object as an image of something suggestive of what is to come.  It’s familiar also in the forms foreshadowed & foreshadowing and was used as a noun since at least 1831.  Although the meanings were different, in Old English there was forescywa (shadow) & forescywung (overshadowing).  The adjective shadowy was ultimately from late fourteenth century shadwi & shadewy (full of shadows, shaded (and also “transitory, fleeting, unreal (resembling a shadow)”).  From very late in the eighteenth century it conveyed the sense of “faintly perceptible”.  In The Old English there was sceadwig (shady) and the modern alternative is shadowiness but unfortunately, the marvelously tempting shadowous never caught on.  The noun shadowland came from a work of fiction in 1821 and meant “an abode of ghosts and spirits”, adopted from the early 1920s to mean an indeterminate or unhappy place”.  The noun shadowless was from the 1630s and meant literally “no shadow” the implication being of things ungodly or supernatural.

In idiomatic use shadow often appears.  To be a shadow of one's self is to have suffered some trauma meaning one is a lesser person than before.  One afraid of one’s own shadow is one of a skittish, nervous disposition.  If something is beyond a shadow of a doubt it is something certain.  The old expression sanctuary in the shadow of the church was not exactly literal: to seek sanctuary from the agents of the state by entering a church meant one had to pass through the door.  It referred to the noting that church soil in England was under the authority of the pope in Rome, not the King.  To throw (or cast) a shadow over someone is to seek to deny them visibility; to keep them out of the limelight.

1969 Rolls-Royce Silver Shadow.

In continuous production until 1980, the Rolls-Royce Silver Shadow was introduced in 1965 and with over 30,000 (including the less common but substantially identical Bentley T2 variant) built, it remains the Rolls-Royce made in the greatest volume.  Although there was little about the model which was cutting-edge, it was the first truly modern Rolls-Royce, forsaking the separate chassis, drum brakes and styling which used updated motifs from the 1930s; it was the template with which the company would underpin its products for the rest of century.  Although the huge Phantom V & VI limousines would continue to use a separate chassis until 1990, their annual production was measured (usually at most) in the dozens and it was the Silver Shadow and its derivatives which were the company’s bread and butter.  The adoption of unitary construction meant the end of the line for many specialist coachbuilders and some of the relics of the industry were absorbed by the factory, the Mulliner name still used by Bentley to adorn the even more expensive “special order” vehicles the 1% need to convey the message of wealth something "off the shelf" can’t manage.

1967 Rolls-Royce Silver Shadow two-door saloon by James Young (left) and 1971 two door saloon by Mulliner Park Ward (MPW) (right).

However, on the Silver Shadow platform, James Young, one of the last surviving coachbuilders, did build 35 two-door saloons before the business was shuttered in 1968.  The quirk of the James Young Silver Shadows is truly they were just the standard car with the rear-doors removed and the front units lengthened and it suffered because the competition was the two-door designed by Mulliner Park Ward (MPW) which by then was a specialist division within the factory.  With greater resources and access to all the technical data, the MPW effort was more imaginative and judged universally to be more attractive, its “cow-hip” style (nobody ever suggested using the "cokebottle" appellation Chevrolet & Pontiac had a few years earlier made a trend) carried over when the car was in 1971 re-named Corniche and listed as a regular production model.  The Corniche proved the longest-lived of all the Silver-Shadow family, the convertible (even Rolls-Royce eventually gave up calling such things drophead coupés (DHC)) remaining available until 1996.

Applied with different colors in different ways, eye shadow can achieve various effects.  Lindsay Lohan demonstrates.

The archeological evidence suggests eye shadow is one of humanity’s oldest forms of make-up, worn (usually but not exclusively by women) for thousands of years, and the preparations have included oils and a variety of substances to create the desired colours including minerals & vegetable extracts although charcoal is thought to have been one of the most accessible and popular materials.  The usual rationale for applying eyes shadows is that it’s essentially the same technique as chiaroscuro, a trick used by painters, photographers & film-makers to use real & emulated light and dark to achieve the perception of depth.  Because shadows are inherent to the shape of the eye-socket, eye shadow can be use to accentuate or soften the effect and, if applied with expertise, can even alter perceptions of size and shape.  With a sympathetic choice of shade, the color of the eyes can also be used as a contrast, some taking advantage of colored contact lens to create a look impossible with their natural irises.  Done well, there's no other way to describe the combination of eye shadow and purple contact lens that "eye catching".  Eye shadow can draw attention to the eyes, most trying to make them appear larger, more vibrant, or more expressive.  Despite the name, eye shadow is a flexible product and often used to create a visual illusion on body parts such as the cheeks or décolletage.

Shadow Volumes

Example of shadow mapping with Python summarized by FinFET.

In computer graphics, shadow volume is a technique used to render realistic shadows in three-dimensional (3D) renderings which is employed primarily when dynamic, interactive real-time movement is needed, most obviously in gaming.  Essentially, generating shadow volumes involves determining those addresses in a scene which need to appear as shadows, then rendering them accordingly.  The technique relies on the concept of extruding the boundaries of shadow-casting objects to create a "shadow volume" that represents the space occluded by the object.  In static scenes this was always easy (if once time-consuming) to achieve but when objects nwere moving, until recent decades, the graphics capabilities of computers were insufficient for them to be rendered in anything close to being real-time.  The process essentially is:

(1) Determining shadow casters: The rendering engine identifies objects in the scene capable of casting shadows by calculating the object's position and shape and its relationship to the positions of light sources.

(2) Creating shadow volumes: For each shadow-casting object, the engine constructs a shadow volume based on extending the object's silhouette (defined by the address of the boundaries) in the direction opposite to the light source.  The silhouette is determined by the math of the boundaries viewed from the perspective of the relevant light sources.

(3) Intersecting shadow volumes: The shadow volumes are then intersected with other objects in the scene to determine which parts of those need to be inside or outside the shadow.

(4) Rendering shadows: The shadow volumes are assembled, rendered with darker hues or modified shading techniques to simulate the shadowed regions.

Shadow volumes can be implemented using more than one different algorithm, the most commonly used the z-pass and the stencil buffer.  All techniques are computationally intensive and have been made possible by the advances in the sheer power and complexity of modern graphical processing units (GPUs).

The Microsoft Volume Shadow Copy Service (VSS)

The handy Nirsoft Utilities includes a Shadow Copy viewer.

Microsoft introduced Volume Shadow Copy Service (VSS) with Windows XP (2001).  It worked in conjunction with the High Performance File System (HPFS) and allowed for the creation of point-in-time snapshots or copies of files and volumes on a disk.  What was in 2001 still something of a novelty for most users was the snapshots were taken while the files were in use, enabling access to previous versions or the restoration of files to a specific state, even if they have been been modified or deleted.  The process sequence was:

(1) Snapshot creation: VSS creates a snapshot of a volume or individual files on a disk.  This snapshot represents a "shadow" of the data at a moment in in time.

(2) Copy-on-write mechanism: As files are modified or deleted on the original volume, the VSS utilizes a copy-on-write mechanism.  It stores the original data in the snapshot, allowing users to access the unchanged version while the new changes are written to the live volume.  The lag induced by this can be measured with the appropriate but except with the largest files or on a busy network, it’s not usually something which affects the user.

(3) Shadow copy storage: The shadow copies are stored in a separate location on the disk, typically in a hidden system folder. The storage space occupied by is system-managed by the system, older copies automatically deleted as space is demanded for newer versions.

(4) User accessibility: Users can access the shadow copies through various means, most obviously the "Previous Versions" tab in file properties or the "Previous Versions" feature in Windows Explorer. These interfaces allow users to browse and restore files from a previous point in time.

Shadow copies provided one of the first forms of dynamic file backups for most users and were a convenient form of data recovery without the need of third-party software or external devices.  At scale, similar processes are used by software by companies such as StorageCraft’s ShadowProtect which system administrators can configure in a way that the potential data-losses can be minimized to windows as short as a few minutes.  Combined with off-site backups on large capacity media, it’s still a pest practice approach to data preservation.

Lindsay Lohan's strangely neglected film Among the Shadows (Momentum Pictures, 2019) was also released in some markets as The Shadow Within and it's not known what prompted the change (although there was a film in 2007 called The Shadow Within).  Given the two titles under which the film was distributed have quite different meanings, presumably either the title is incidental to the content or equally applicable.  A dark and gloomy piece about murderous werewolves and EU politicians (two quite frightening species), perhaps both work well and no reviewer appears to have commented on the matter and given the tone of the reviews, it seems unlikely there'll be a sequel to resolve things.

Tape

Tape (pronounced teyp)

(1) A long, narrow strip of linen, cotton, or the like, used for tying garments, binding seams or carpets etc.

(2) A long, narrow strip of paper, metal etc.

(3) A strip of cloth, paper, or plastic with an adhesive surface, used for sealing, binding, or attaching items together; adhesive tape or masking tape; the trade-name “Scotch Tape” is often used as a generic descriptor.

(4) As tape measure, a flexible type of ruler, especially useful for measuring curved shapes.

(5) As finishing tape, the string stretched across the finishing line in a race and broken by the winning contestant on crossing the line; also sometimes incorrectly referred to as “finishing line” which technically is the line marked on the ground.

(6) In financial trading or news dissemination, a paper tape on which a stock ticker, news ticker or similar device would print incoming information (obsolete although the concept is still used in digital form).

(7) As magnetic tape, a usually re-usable media used to record, store and retrieve information and mounted in devices such as tape recorders, tape decks, tape arrays and tape drives, the physical tape on spools or in cassettes; in more precise forms as audio tape, data tape, videotape etc.

(8) To furnish with a tape or tapes.

(9) To tie up, bind, or attach with tape.

(10) To measure with or as if with a tape measure.

(11) To record on magnetic tape (although the phrase “to tape” is used also to refer to recording and similar activities even when no physical tape is used.

(12) As red tape, a slang term referencing bureaucratic inefficiency and delay, named after the literal red (actually often a shade of mauve) for centuries used in the British civil service to secure un-bound files.

(13) In mechanical printing, a strong flexible band rotating on pulleys for directing the sheets in a printing machine (mostly obsolete).

Pre 1000: From the Middle English tape (an unexplained variant of tappe), from the Old English tæppa & tæppe (ribbon, strip (of cloth), literally “part torn off”), akin to the Middle Low German tappen & tāpen (to grab, pull, rip, tear, snatch, pluck) and related to the Old Frisian tapia (to pull, rip, tear), the Middle High German zāfen & zāven (to pull, tear) and the Middle Dutch tapen (to tear).  The source of the Old English tæppa & tæppe is uncertain but etymologists suggest they may be back-formations from the Latin tapete (cloth, carpet).  The original short vowel became long in Middle English.  Tape & taping are nouns & verbs and taped is a verb; the noun plural is tapes.

Many other languages picked up tape or localized variations including Danish (tape), Dutch (tape), Hausa (têf), Hindi (टेप (ṭep)), Irish (téip), Japanese テープ (tēpu), Korean (테이프 (teipeu)), Norwegian (both Nynorsk & Bokmål) (tape & teip), Swahili (tepe), Swedish (tape & tejp), Thai (เทป (téep)), Tibetan (ཊེབ (ṭeb)), Turkish (teyp), Phalura (ṭeép) and Welsh (tâp) although, since tape began to be used in the context recording & storage media, the English “tape” is often used even if a local form exists in the sense of “to bind” or “a strip of fabric” etc.  The word is widely used as an element (tapeworm, magnetic-tape, tape-drive, tape-machine, tape-gun, tape-loader, tape-recorder, ticker tape, tape-measure, cassette tape et al) and there are a wide variety of adhesive tapes (electrical tape, duct tape, gaffer tape (originally gaffer's tape) sticky tape, Scotch tape & Sellotape (both registered trademarks), masking tape, packing (or packaging or parcel) tape, insulating (or insulation) tape et al), each with a slightly different specification dictated by their intended purpose or spot in the market. 

Tape scene: Lindsay Lohan as Tess Conway in Freaky Friday (2003).

Adhesive tape dates from 1885 and until the form prevailed, the product was known also as friction tape and two of the best-known, Gaffer tape and duct tape are often confused but, being designed for different purposes, are not interchangeable; distinct in construction and intended application, there can be unfortunate consequences if one is used for tasks where the other would be more appropriate.  The first tape recorders in the modern sense of a "device for recording sound on magnetic tape" were available for sale in 1932 and were then “reel-to-reel” machines, a re-use of the 1892 application describing a "device for recording data on ticker tape", that tape in the sense of "paper strip of a printer", dating from 1884.  Strangely, the verb form “tape-record” seems not to have be used prior to 1950 although the technology had for first been used in 1928; audio-tape is said to from 1957 whereas, counter-intuitively, videotape is attested as a noun from 1953 and a verb from 1958, the explanation being that tape was more widely used earlier in film & television production than in the recording industry which needed less storage space until technologies like LP (long-playing) records and stereo were adopted.  The tape-measure is attested from 1873 and the technical phrase “tape-delay” is from 1968 although the associated techniques had been in use for some time.  The disgusting tapeworm was first named in 1705, so called for its ribbon-like shape.

The phrase red tape (official bureaucratic routine or formula especially the excessive rigmarole), dates from 1736 and refers to the red tape (often also a shade of mauve), formerly used in the British civil service (and many of the colonies including the Raj) for binding up legal and other official documents, the item (requisitioned by the roll) mentioned in the civil service supply lists fist in the 1690s.  The familiar Sellotape was first sold in the UK in 1949 and is a proprietary name of a popular brand of cellulose or plastic adhesive tape.  The noun cassette, much associated with magnetic tape is from the 1793 French cassette (a little box), from a diminutive of the Old North French casse (box) and the first cassettes in the sense of "magnetic tape cartridge" is from 1960.  The ticker tape dates from 1891 and was the actual physical paper tape on which was printed the information (stock prices, news et al) and was derive from the 1883 ticker (telegraphic device for recording stock market quotations), so made because the printing was by means of impact and thus made a ticking sound when in operation.

Marilyn Monroe's dress

Kim Kardashian (b 1980) wore to the 2022 Met Gala the marquisette dress made famous by Marilyn Monroe (1926-1962) when she appeared to sing happy birthday Mr President to President Kennedy (1917-1963; US president 1961-1963) during a Democratic Party fundraiser at Madison Square Garden on 19 May 1962, ten days before the actual birthday.  Within three months, she would be dead.

It couldn’t be expected to cause quite the same stir as sixty years earlier because, cut from a sheer, silk marquisette that almost exactly matched Ms Monroe’s skin-tone, the 2500 hand-sewn rhinestones were intricately positioned to respond to the particular gait she chose for that evening and, under the limelight in the darkened amphitheater, as she moved, the crystals sparkled and the dress came alive.  It was quite a design.  In the hard, white light of the Met Gala’s red carpet, it couldn’t be expected to work the magic it did all those years ago and, not shimmering in the darkness, it seemed lifeless and perhaps it would have benefited from the contrast her lustrous natural hair would have lent but Ms Kardashian wore it well, attracting admiration (and criticism from the usual suspects) too for the reasonable achievement of shedding some 16 lbs (7¼ KG) in three weeks to ensure a comfortable fit.  Digesting the implications of that, keen-eyed fashionistas noted the vintage white coat which Ms Kardashian kept strategically positioned below the small of her back for the ritual walk to and up the staircase, some taking to Twitter to wonder if it was there to conceal that things were quite fully done-up.

The theory is plausible; it’s always been known that in 1962, Ms Monroe had to be “sewn-into” the dress just before the performance.  The day after the Met Gala, photographs circulated purporting to show Ms Kardashian with a generously sized, pear-shaped lacuna between the seams, accompanied with the accusation that the images showing things done up had been digitally modified and the haters were certainly out, one distressed soul lamenting that for Ms Kardashian to wear the dress "...was an absolute disgrace, a tacky photo opportunity" and that "...one of the most important items of clothing in history, is now tainted with the stain of the Kardashians."  There are people who do take pop-culture very seriously.  The green dress she changed into after her ascent had similar lines (and perhaps slightly more generous dimensions) but was certainly done-up and anyway, in either, she looked gorgeous. 

Kim Kardashian demonstrating gaffer tape used in a way not included in the manufacturer's instructions, February 2016.

On that night in 1962, Ms Munroe eschewed underwear but, despite the absent 16 pounds, in 2022 there was still a little more to accommodate than that for which the original structural engineering was designed to cope.  Fortunately, through long practice and extensive product development, Ms Kardashian has some expertise in invisible support, in February 2016 publishing her findings:

“I’ve used everything from duct tape to packing tape to masking tape and I think that the best I’ve found is gaffer's tape,” she said.  "It sticks the best. Make sure you don't have any lotion or oils on when you're lifting your boobs up with the tape.  Just brace yourself for when it's time to take it off, LOL."

That was of course the problem, gaffer tape intended to stick to a range of dry surfaces including timber, metal and carpet but certainly not human skin, the consequences including irritation, reddening and even losing layers of skin.  In response, Ms Kardashian developed a tape which combined the functionality of gaffer tape with the strength and durability to support the weight yet able to be removed with the effortlessness of surgical tape, leaving the skin un-damaged.  Such tapes have been sold for a while, the industry jargon being “tit tape” but the Kardashian version is claimed to be better and, significantly, available in three tones which should suit most skin colors.  Simply called “Body Tape”, it comes in rolls and can be cut to suit, preparation otherwise limited to peeling off the paper backing before applying to achieve the desired effect.  Borrowing from the concept of gaffer tape, Body Tape is reinforced with a flexible stretch cotton, designed to be not too flexible because it needs to stretch only to accommodate human movement while retaining a natural look; it must therefore exist in a “goldilocks zone”, that sweet spot between elasticity and rigidity.

On her Skims website, there’s a helpful promotional video demonstrating Body Tape being applied to a model, the commentary emphasizing it needs to be placed at an angle which will suit the clothing with which it’s to be worn and that typically will mean describing a diagonal angle which will vary according to the neckline being accommodated.  It’s a process which might be better done by two so it’s something couples can enjoy together although, with practice, presumably one would become adept at taping one’s self.  When clothed, the results were impressive though obviously results will vary according to technique and the raw material involved.  The final test was of course was the removal, the reason Body Tape was developed and, without any obvious discomfort, the model peeled off the tape.  "That wasn't painful at all", cheerfully she confirmed.

Skims Body Tape (edited highlights).

The Watergate tapes and the erased 18½ minutes

Looking over his shoulder: Richard Nixon (1913-1994; US president 1969-1974, right) and HR Haldeman (1926–1993; White House chief of staff 1969-1973, left) in the White House.

Tapes, audio and video, have played a part in many political downfalls but none is more famous than the “smoking gun” tape which compelled the resignation of Richard Nixon after it revealed he was involved in the attempt to cover-up the involvement in the Watergate break-in of some connected to his administration.  Recording conversations in the White House had been going on for years and Nixon initially had the equipment removed, the apparatus re-installed two years later after it was found there was no other way to ensure an accurate record of discussions was maintained.  Few outside a handful of the president’s inner circle knew of the tapes and they became public knowledge only in mid-1973 when, under oath before a congressional hearing, a White House official confirmed their existence.  That was the point at which Nixon should have destroyed the tapes and for the rest of his life he must sometimes have reflected that but for that mistake, his presidency might have survived because, although by then the Watergate scandal had been a destabilizing distraction, there was at that point no “smoking gun”, nothing which linked Nixon himself to any wrongdoing.  As it was, he didn’t and within days subpoenas were served on the White House demanding the tapes and that made them evidence; the moment for destruction had passed.  Nixon resisted the subpoenas, claiming executive privilege and thus ensued the tussle between the White House and Watergate affair prosecutors which would see the “Saturday Night Massacre” during which two attorneys-general were fired, the matter ultimately brought before the US Supreme Court which ruled against the president.  Finally, the subpoenaed tapes were surrendered on 5 August 1973, the “smoking gun” tape revealing Nixon HR Haldeman, 1926–1993 (White House chief of staff 1969-1973) discussing a cover-up plan and at that point, political support in the congress began to evaporate and the president was advised that impeachment was certain and even Republican senators would vote to convict.  On 8 August, Nixon announced his resignation, leaving office the next day.

Uher 5000 reel-to-reel tape recorder used by a White House secretary to create the tape (20 June 1972) with the infamous 18½ minute gap (government exhibit #60: Records of District Courts of the United States, Record Group 21, (National Archives Identifier): 595593).

To this day, mystery surrounds one tape in particular, a recording of a discussion between Nixon and Halderman on 20 June 1972, three days after the Watergate break-in.  Of obviously great interest, when reviewed, there was found to be a gap of 18½ minutes, the explanations offered of how, why or by whom the erasure was effected ranging from the humorously accidental to the darkly conspiratorial but half a century on, it remains a mystery.  Taking advantage of new data-recovery technology, the US government did in subsequent decades make several attempts to “un-delete” the gap but without success and it may be, given the nature of magnetic tape, literally there is nothing left to find.  However, the tape is stored in a secure, climate-controlled facility in case technical means emerge and while it’s unlikely the contents would reveal anything not already known or assumed, it would be of great interest to historians.

What might be more interesting still is the identity of who it was that erased those infamous 18½ minutes but that will likely never be known; after fifty years, it’s thought that were there to be any death-bed confessions, they should by now have been utterd.  Some have their lists of names of those who might have "pressed the erase button" and while mostly sub-sets of Watergate's "usual suspects", one who tends not to appear is Nixon himself, the usual consensus being his well-known ineptitude in handling modern technology would rendered him a most unlikely editor though it's at least possible he ordered someone to do the deed.  However it happened, the suspects most often mentioned as having had their "finger on the button" (which may have been a foot-pedal) are Nixon's secretary and his chief of staff.  The long-serving secretary (Rose Mary Woods, 1917–2005) actually admitted to “inadvertently” erasing some 4-5 minutes of the recording by way of the “terrible mistake” of putting her foot on the “wrong pedal” while stretching to answer the desk telephone.  In explanation, she demonstrated how it happened (a reasonable piece of office gymnastics which reporters dubbed the “Rose Mary Stretch”) but always maintained there was no way she was responsible for a longer gap.  Halderman always denied any involvement in the mystery and Nixon always maintained he was shocked and disappointed when told of the silence.