Plutonium & Uranium

Plutonium (pronounced ploo-toh-nee-uhm)

A radioactive chemical element that is artificially derived from uranium, plutonium is a highly toxic metallic transuranic element.  It occurs in trace amounts in uranium ores and is produced in a nuclear reactor by neutron bombardment of uranium-238. The most stable and important isotope, plutonium-239, readily undergoes fission and is used as a reactor fuel in nuclear power stations and in nuclear weapons. Symbol: Pu; atomic no: 94; half-life (plutonium 239): 24,360 years; valency: 3, 4, 5, or 6; relative density (alpha modification): 19.84; melting point: 1184°F (640°C); boiling point: 5846°F (3230°C); specific gravity 19.84.  Its longest-lived isotope is Plutonium 244 with a half-life of 77 million years.

1941: The construct was Pluto (the (now dwarf-) planet), +–ium (the element ending suffix from the Latin -um (neuter singular morphological suffix) and based on Latin terms for metals such as ferrum (iron).  The –ium suffix (used most often to form adjectives) was applied as (1) a nominal suffix (2) a substantivisation of its neuter forms and (3) as an adjectival suffix.  It was associated with the formation of abstract nouns, sometimes denoting offices and groups, a linguistic practice which has long fallen from fashion.  In the New Latin, as the neuter singular morphological suffix, it was the standard suffix to append when forming names for chemical elements.  Plutonium was discovered at the University of California, Berkeley and so named because it follows the recently discovered neptunium in the periodic table and, at the time, Pluto followed Neptune in the Solar System.  The name plutonium earlier had been proposed for barium and was used sometimes in this sense early in the nineteenth century.

Pluto was from the Latin Plūtō, from the Ancient Greek Πλούτων (Ploútōn) (god of the underworld”).  In Greek mythology & Roman mythology, Pluto is remembered as the Greco-Roman god of the underworld but the ultimate origin was the Greek Ploutōn (god of wealth), from ploutos (wealth, riches (thought probably used originally in the sense of “overflowing”), from the primitive Indo-European root pleu- (to flow); the alternative Greek name Hades is also related to wealth because it is from beneath the earth that lie valuable metals & precious gems.  Although some have expressed doubt, the accepted history is it was then eleven year old Ms Venetia Burney (1918–2009) who suggested the name Pluto for the newly discovered (then) planet, aware of the procedure apparently because her uncle had earlier nominated Phobos and Deimos as names for the moons of Mars.  In 2006, the humorless International Astronomical Union (IAU) made its scandalous decision to declare, on highly technical grounds, that Pluto was not a planet but a mere dwarf and this inspired the American Dialect Society to coin the verb "to pluto" meaning "to demote or devalue something".

Uranium (pronounced yoo-rey-nee-uhm)

A white, lustrous, radioactive, metallic element, it has compounds used in photography and in coloring glass, the 235 isotope used in atomic and hydrogen bombs and as nuclear fuel in fission reactors.  A radioactive silvery-white metallic element of the actinide series, it occurs in several minerals including pitchblende, carnotite, and autunite.  Symbol: U; atomic no: 92; atomic wt: 238.0289; half-life of most stable isotope (uranium 238): 451 × 10⁹ years; valency: 2-6; relative density: 18.95 (approx.); melting point: 2075°F (1135°C); boiling point: 7473°F (4134°C); specific gravity 18.95.

1789: The construct was Uranus + (the planet) the –ium.  The element was named (using the conventions of Modern Latin) because the discovery of the planet had recently been announced.  Uranus was from the Latin Ūranus, from the Ancient Greek Οὐρανός (Ouranós), from οὐρανός (ouranós) (sky, heaven).

Uranus Fudge Factory, 14400 State Hwy Z, St Robert, Missouri 65584, USA.

Nuclear Weapons

Of the first three atomic bombs built in 1945, two used plutonium as fissile material while one used uranium.  Two of the many problems faced in the project were (1) production of uranium of the required purity was slow but a bomb of this type was (relatively) simple to produce and (2) plutonium was more abundant but the engineering to create such a bomb was intricate, the results uncertain.  Two designs were thus concurrently developed: a (relatively) simple trigger-type device and a more complex implosion-type.  Trinity, code-name for the world’s first detonation of a nuclear device (New Mexico, July 1945), was one of the latter, an implosion-type plutonium bomb.  It was chosen because this was a genuine test, there being no certainty it would work whereas the trigger-type uranium device, ultimately dropped on Hiroshima a month later, was never tested because the scientists and engineers had such confidence in its design.  After the war, it was assumed the somewhat inefficient trigger mechanism wouldn’t again be used but technical problems saw production temporarily resumed, these stop-gap A-Bombs remaining in service until 1951.

Models of short and medium-range ballistic missiles at DPRK Annual Flower Show, Pyongyang, April 2013.

Lindsay Lohan in mushroom cloud T-shirt.

It’s no longer certain the uranium-based bomb used again Hiroshima in August 1945 remains a genuine one-off.  It’s certain that in the sixty-odd years since Trinity, every nuclear weapon except the Hiroshima device was plutonium-based but, beginning in 2006, the DPRK (the Democratic People's Republic of Korea (North Korea)) conducted six nuclear tests and, despite advances in monitoring and detection techniques, it’s not clear what material was used although the consensus is all were fission (A-Bombs) and not fusion (H-Bombs) devices.  The tests, by historic standards, were low-yield, suggesting uranium, but this could be misleading because even a failed test of can produce a nuclear blast called a fizzle (when a detonation fails grossly to meet its expected yield).  The DPRK's programme will have had the odd fizzle but then so has every nation at some stage of the process but by historic standards it must be judged a success.  It was hampered by sanctions and international opposition (Beijing and Moscow as unwilling as Western powers to help the hermit kingdom join the nuclear club) but achieved the  necessary technology transfer by swapping ballistic missile blueprints with Pakistan which had detonated it's first fission device in 1998 but lacked a robust delivery system to counter the "nuclear threat" from India which had tested as early as 1974.  That transaction was illustrative of one of the two concerns the West harbours about the DPRK bomb (1) some sort of accident (and that covers everything from an unplanned detonation in some unfortunate place to a missile launch which malfunctions and hits a populated area) and (2) nuclear proliferation which happens because the technology is used by Pyongyang in the barter economy as a trade for something desirable but not available because of sanctions or other trade restrictions.

Fecund & Fertile

Fecund (pronounced fuh-khunt, fee-kuhnd or fek-uhnd)

(1) Producing or capable of producing offspring, fruit, vegetation, etc in abundance; prolific; fruitful.

(2) Figuratively, highly productive or creative intellectually; innovative.

Circa 1525: From the mid-fifteenth century Middle English fecounde from the Middle French fecund, from the Old French fecund & fecont (fruitful), from the Latin fēcundus (fruitful, fertile, productive; rich, abundant (and related to the Latin fētus (offspring) and fēmina (“woman”)), from fe-kwondo-, an adjectival suffixed form of the primitive Indo-European root dhei or dhe- (to suck, suckle), other derivatives meaning also “produce” & “yield”.  Fē in this case wasn’t a prefix but a link to fetus whereas -cundus was the adjectival suffix.  It replaced the late Middle English fecounde.  The spelling fecund was one of the “Latinizing” revisions to spelling which was part of the framework of early Modern English, (more or less) standardizing use and replacing the Middle English forms fecond, fecound & fecounde.  The Latin root itself proved fecund; from it came also felare (to suck), femina (woman (literally “she who suckles”)); felix (happy, auspicious, fruitful), fetus (offspring, pregnancy); fenum (hay (which seems literally to have meant “produce”)) and probably filia (daughter) & filius (son), assimilated from felios (originally “a suckling”).  The noun fecundity emerged in the early fifteenth century and was from the Latin fecunditatem (nominative fecunditas) (fruitfulness, fertility), from fecundus (fruitful, fertile).  The old spelling fœcund is obsolete.  Fecund is an adjective and fecundity & fecundation are nouns; the noun plural is fecundities.

In his A Dictionary of Modern English Usage (1926), Henry Fowler (1858–1933) noted without comment the shift in popular pronunciation but took the opportunity to cite the phrase of a literary critic (not a breed of which he much approved) who compared the words of HG Wells (1866-1946) & Horace Walpole (1717–1797): “The fecund Walpole and the facund Wells”.  The critic, Henry Fowler noted: “fished up the archaic facund for the sake of the play on words”.  Never much impressed by flashy displays of what he called a “pride of knowledge”, his objection here was that there was nothing in the sentence to give readers any idea of the change in meaning caused by the substituted vowel.  Both were from Latin adjectives, fēcundus (prolific) and facundus (elegant).

Fertile (pronounced fur-tl or fur-tahyl (mostly UK RP))

(1) Of land, bearing, producing, or capable of producing vegetation, crops etc, abundantly; prolific.

(2) Of living creatures, bearing or capable of bearing offspring; Capable of growth or development.

(3) Abundantly productive.

(4) Conducive to productiveness.

(5) In biology, fertilized, as an egg or ovum; fecundated; capable of developing past the egg stage.

(6) In botany, capable of producing sexual reproductive structures; capable of causing fertilization, as an anther with fully developed pollen; having spore-bearing organs, as a frond.

(7) In physics (of a nuclide) capable of being transmuted into a fissile nuclide by irradiation with neutrons (Uranium 238 and thorium 232 are fertile nuclides); (a substance not itself fissile, but able to be converted into a fissile material by irradiation in a reactor).

(8) Figuratively, of the imagination, energy etc, active, productive, prolific.

1425–1475: From the Late Middle English fertil (bearing or producing abundantly), from the Old French fertile or the Latin fertilis (bearing in abundance, fruitful, productive), from ferō (I bear, carry) and .akin to ferre (to bear), from the primitive Indo-European root bher (to carry (also “to bear children”)).  The verb fertilize dates from the 1640s in the sense of “make fertile” although the use in biology meaning “unite with an egg cell” seems not to have been used until 1859 and use didn’t become widespread for another fifteen years.  The noun fertility emerged in the mid-fifteenth century, from the earlier fertilite, from the Old French fertilité, from the Latin fertilitatem (nominative fertilitas) (fruitfulness, fertility), from fertilis (fruitful, productive).  Dating from the 1660s, the noun fertilizer was initially specific to the technical literature associated with agriculture in the sense of “something that fertilizes (land)”, and was an agent noun from the verb fertilize.  In polite society, fertilizer was adopted as euphemism for “manure” (and certainly “shit”), use documented since 1846.  The noun fertilization is attested since 1857 and was a noun of action from fertilize; it was either a creation of the English-speaking world or a borrowing of the Modern French fertilisation.  The common antonyms are barren, infertile and sterile.  Fertile is an adjective, fertility, fertilisation & fertileness are nouns, fertilize fertilized & fertilizing are verbs.  Technical terms like sub-fertile, non-fertile etc are coined as required.

The term “Fertile Crescent” was coined in 1914 was coined by US-born University of Chicago archaeologist James Breasted (1865-1935); it referred to the strip of fertile land (in the shape of an irregular crescent) described the stretching from present-day Iraq through eastern Turkey and down the Syrian and Israeli coasts.  The significance of the area in human history was it was here more than ten-thousand years ago that settlements began the practice of structured, seasonal agriculture.  The Middle English synonym childing is long obsolete but the more modern term “at risk” (of falling pregnant) survives for certain statistical purposes and was once part of the construct of a “legal fiction” in which the age at which women were presumed to be able to conceive was set as high as 65; advances in medical technology have affected this.

The difference

So often are “fecund” & “fertile” used interchangeably that there may be case to be made that in general use they are practically synonyms.  However, the use is slanted because fertile is a common word and fecund is rare; it’s the use of fertile when, strictly speaking, fecund is correct which is the frequent practice.  Technically, the two have distinct meanings although there is some overlap and agriculture is a fine case-study: Fertile specifically refers to soil rich in nutrients and able to support the growth of plants.  Fecund can refer to soil capable of supporting plant growth but it has the additional layer of describing something capable of producing an abundance of offspring or new growth.  This can refer to animals, humans, bacteria or (figuratively), ideas.  Used interchangeably, expect between specialists who need to differentiate, this linguistic swapping probably doesn’t cause many misunderstandings because the context of conversations will tend to make the meaning clear and for most of use, the distinction between a soil capable of growing plants and one doing so prolifically is tiresomely technical.  Still, as a rule of thumb, fertile can be thought of as meaning “able to support the growth of offspring or produce” while fecund implies “producing either in healthy volumes”.

Ultimate fecundity: Fast breeding

Although there are differences in meaning, fertile and fecund tend to be used interchangeably, especially in agriculture.  As adjectives, the difference is that fecund means highly fertile whereas fertile is the positive side of the fertile/infertile binary; capable of producing crops or offspring.  Fecundity may thus be thought a measure of the extent to which fertility is realised.  In nuclear physics, fertile material is that which, while not itself fissile (ie fissionable by thermal neutrons) is able to be converted into fissile material by irradiation in a reactor.  Three basic fertile materials exist: thorium-232, uranium-234 & uranium-238 and when these materials capture neutrons, respectively they are converted into uranium-233, uranium-235 & fissile plutonium-239.  Artificial isotopes formed in the reactor which can be converted into fissile material by one neutron capture include plutonium-238 and plutonium-240 which convert respectively into plutonium-239 & plutonium-241.

Obviously fertile and recently fecund.  In July 2023 Lindsay Lohan announced the birth of her first child.

Further along the scale are the actinides which demand more than one neutron capture before arriving at an isotope which is both fissile and long-lived enough to capture another neutron and reason fission instead of decaying.  These strings include (1) plutonium-242 to americium-243 to curium-244 to curium-245, (2) uranium-236 to neptunium-237 to plutonium-238 to plutonium-239 and (3) americium-241 to curium-242 to curium-243 (or, more likely, curium-242 decays to plutonium-238, which also requires one additional neutron to reach a fissile nuclide).  Since these require a total of three or four thermal neutrons eventually to fission, and a thermal neutron fission generates typically only two to three neutrons, these nuclides represent a net loss of neutrons although, in a fast reactor, they may require fewer neutrons to achieve fission, as well as producing more neutrons when they do.

Fast breeder (fusion) reactors have existed in labs for decades but, because of the need to contain sustainably very high temperatures, the challenge has always been to build something which (1) produces more energy than it consumes and (2) does so indefinitely.  On paper (and physicists admit the design is now so well understood a conceptual diagram can be sketched on a sheet in minutes) the science and engineering works so all that stands in the way is economics.  The lure of the fast breeder reactor is that, theoretically endlessly, one can produce more fissile material than it consumes (they're constructed using fertile material either wrapped around the core or encased in fuel rods).  Because plutonium-238, plutonium-240 and plutonium-242 are fertile, their accumulation is more manageable than that produced in conventional thermal reactors.  On planet Earth, the economics remain un-compelling, practical application of the technology having been thirty years off since the mid-1950s.  One proposal however transcends economics because it solves an otherwise insoluble problem.  If a facility for the manufacture of fissile material for spacecraft nuclear propulsion could be located on a space facility located at a point beyond the gravitational pull of Earth, it would be safe both to transport fertile materials to the facility and there manufacture fissile material which could provide the energy required for space exploration.

Trinitite

Trinitite (pronounced trin-a-tight)

(1) The glassy residue left on the desert floor after the Trinity nuclear bomb test of 16 July 1945 at Alamogordo, New Mexico, USA.

(2) By extension, any melt glasses left by nuclear bombs (known also as Alamogordo, atomsite glass or nuclear melt glass).

1945: Compound word trinit(y) +‎ -ite.  Trinity is from the Middle English trinitie & trinite from the Anglo-Norman trinitie or trinite (or ternite, trenite, trinetei, trinitiet & trinitet) from the Latin trīnitātem, accusative singular of trīnitās (the number three; a triad; the Trinity), from trīni (from trīnus (triple) from trēs, from the Proto-Italic trēs, from the primitive Indo-European tréyes (three)) + the suffix -itās from the Proto-Italic -itāts & -otāts from the primitive Indo-European –tehts, the suffix forming nouns indicating a state of being.  The suffix –ite is from the Ancient Greek -ίτης (-ítēs) and was adopted in Latin as part of Greek loanwords, both as –ītēs but also often as -īta.  It was used in Biblical tribal names (Thus either Levītēs or Levīta; plural in –ītae) and in the Medieval Latin of religious groups, such as Marcionītae, Ebiōnītae, Monophysītae.  It’s an adjective-forming suffix, especially of nominalised adjectives identifying groups of people as "those belonging to".  Trinitite is a noun; the noun plural is trinitites.  The verb trinitize is unrelated; it's from Christian theology and means "to divide into a trinity".

It was the physicist Robert Oppenheimer (1904–1967), head of the Manhattan Project which developed the first atomic weapons, who choose the name of the test site for the first atom bomb: Trinity.  He’s remembered for a snatch of verse he said the sight of the first atomic explosion made him recall, words from the Bhagavad Gita: Now I am become Death, the destroyer of worlds.  Oppenheimer also had a fondness for the metaphysical poetry of John Donne (1572–1631), the Church of England cleric, and said he remembered also:

As West and East
In all flat Maps—and I am one—are one
So death doth touch the Resurrection

While those lines do not a Trinity make, others do such as Batter my heart, three person’d God and the Holy Trinity permeates much of his Donne's work.

Variations since Trinity include kharitonchik (melt glasses from the Soviet nuclear bomb Semipalatinsk Test Site in Kazakhstan), impactite (metamorphic minerals caused by meteor heating of non-meteoritic materials), impact glass (melt glasses caused by meteor heating of non-meteoritic materials), fulgurite (melt glasses caused by lightning strikes) and fusion crust (metamorphic minerals on the surface of meteorites caused by atmospheric entry heating).  Trinitite has also been referred to as atomsite or Alamogordo glass (after the nearby city).

Physicist Norris Bradbury (1909–1997; director of the Los Alamos National Laboratory 1945-1970), group leader for bomb assembly, stands next to the partially assembled "Gadget" (code-name for the first plutonium A-bomb) atop the test tower, New Mexico, 16 July 1945).

The Trinity test of the plutonium A-bomb in New Mexico in July 1945 was a genuine test.  The uranium A-bomb which had also been built and which ultimately was dropped on Hiroshima in August was a device in which the scientists had such faith that it was deemed no test was necessary, something that sounds astonishing now but among all the physicists and engineers attached to the Manhattan Project (the A-bomb development team), there were no dissenting voices.  As a uranium bomb, the Hiroshima device was (at least for decades) a genuine one-off, all subsequent nuclear weapons being plutonium-based devices (and that may still be true; the details of the DPRK’s (North Korea) bombs remaining murky).  A uranium bomb turned out to be (relatively) easy to design and build and the trigger mechanism was simple but production of uranium to the specification required was a slow and exacting process given the machinery at the time available.  By contrast, a supply of weapons-grade plutonium was possible with the existing facilities but it was a formidable engineering challenge to create the trigger mechanism while ensuring the device remained within the size and weight parameters of a gravity bomb dropped from an aircraft which would have to fly thousands of miles to reach the target.  The Hiroshima bomb could be made to explode simply by firing a uranium bullet into the uranium core but if that approach was used with plutonium, all that would happen would be the melting of the core.  The solution was to surround the core with sufficient high-explosive to create the pressure required to trigger the chain reaction.  It was this process that the Trinity was staged to test.

Trinitite on the desert floor.

Although the test was over seventy-five years ago and completely fulfilled the purpose of testing the plutonium bomb, it was in another sense an extraordinary experiment in high-energy physics and even in the twenty-first century, analysis of the data and the physical aftermath at the site continues to reveal interesting discoveries.  Geological excavations in 2005 confirmed that the explosion, as predicted, initially pushed-down the ground but that it then rebounded, forcing the material upwards into the fireball in the sky where it was vaporized before cooling and crystallizing, eventually raining down in the form of the trinitite fragments.  Most of the trinitite was green because of the iron content in the sand while a smaller volume was black because their source was the iron from which Trinity’s tower structure was constructed and, being refined and processed, the iron content was much greater than that in the sand.  Finally, among all the trinitite, there was found a tiny number of red crystals which gained their color from all the copper cables which were also vaporized.  The propensity of copper to color its immediate environment was well-known, the mining conglomerate Rio Tinto formed in 1873 with a company name from the Rio Tinto (red river or Tinto River); the highly acidic river in the Sierra Morena mountains of southwestern Spain that runs red & orange because of the high copper content in the surrounding soil.

Red Trinitite.

Beginning in that fraction of a second when the nuclear age was born was the process which produced the red crystals, the extreme pressure and temperature (the Trinity site was briefly hotter than the surface of the Sun) forging a most unusual structure within one grain of the material just 10 micrometers across (barely longer than a red blood cell).  Made from silicon, copper, calcium and iron, the rare form of matter was called a quasicrystal.  Normally, crystals are made from atoms locked in a lattice that repeats in a regular pattern but quasicrystals, while having a structure that is orderly like a normal crystal, don’t have patterns which repeat and this grants quasicrystals properties forbidden to normal crystals.  First discovered in laboratory observations during the 1980s, quasicrystals also occur naturally in meteorites, matter transformed by stars, another place of extreme heat and pressure.

The Trinity test, the world's first nuclear explosion.

Until their observation in the 1980s, physicists regarded quasicrystals as “impossible” because they would have violated the rules scientists had over centuries constructed to define crystalline materials; the quasicrystal was thus a ‘black swan” moment in physics.  Traditionally, crystals were held to possess what were known as “rotational symmetries”, places where the structure could symmetrically be split in half, along one, two, three, four and six axes.  The black swan quasicrystal broke the rules or, more precisely, proved the rules were wrong, demonstrating instead an “icosahedral symmetry” a construct which includes six independent five-fold symmetry axes; as solids with these rotational symmetries, the quasicrystal is unique.  To the US military-industrial complex, it may also prove uniquely useful because, if a sample could be obtained of a quasicrystal created during nuclear tests conducted by other nations, it could be analyzed and might yield new understandings of their programs and weapons.  It’s always been possible to examine radioactive debris and gases to build models of how the devices were built and the materials used but those signatures decay.  Not only might a quasicrystal reveal new information but, and this is obviously most useful if the analytical process uses non-destructive tests, quasicrystals are a form of matter which goes as close (theoretically) to lasting forever as any yet known.

Lindsay Lohan (right) illustrating the typical hue of green trinitite (left).

What’s sometimes described as “trinitite green” and used for glass crockery or decorative items is misleading because such purity was never in New Mexico after the blast.  A glassy material, most trinitite exists in a range between a pale to olive green but smaller quantities in red and black have also been observed, the coloration dependent on the specific minerals and materials in the blast site.  The green is a product of iron while the red comes from the copper electrical wiring used in the Trinity test equipment being fused together with the quartz and feldspar sand grains from the desert floor.  A quirk is that red trinitite is brightly fluorescent under short wave ultra-violet light whereas the more abundant green variety of typically shows little to no fluorescence under UV, the difference again due to the mineral composition.  Black trinitite is rarest, formed by virtue of the presence of iron alone from the tower with no copper content.

Delivery

Delivery (pronounced dih-liv-uh-ree (U) or dee-liv-er-ree (non-U))

(1) The carrying and turning over of letters, goods, etc to a designated recipient or recipients.

(2) A giving up or handing over; surrender.

(3) The utterance or enunciation of words.

(4) Vocal and bodily behavior during the presentation of a speech.

(5) The act or manner of giving or sending forth.

(6) The state of being delivered of or giving birth to a child; parturition.

(7) Something delivered.

(8) In commerce, a shipment of goods from the seller to the buyer.

(9) In law, a formal act performed to make a transfer of property legally effective.

(10) In printing, the part of a printing press where the paper emerges in printed form (also called delivery end).

(11) The act of rescuing or state of being rescued; liberation.

(12) In various ball sports, the act or manner of bowling or throwing a ball

(13) In machinery design, the discharge rate of a compressor or pump.

1400–1450: From the late Middle English delyvere & delyvery from the Anglo-Norman delivrée, from the Old French delivrer, from the Latin līberō, from līber (free), from the Old Latin loeber, from the Proto-Italic louðeros, from the primitive Indo-European hléwdheros, from hlewdh- (people) + the prefix de- (from the Latin dē-, from the preposition dē (of, from).  It was cognate with the Ancient Greek ἐλεύθερος (eleútheros), the Sanskrit रोधति (ródhati), the Dutch lieden, the German Leute and the Russian люди (ljudi) (people); the Old English æf- was a similar prefix.  The word was a noun use of the feminine past participle of delivrer (to deliver) with the suffix assimilated to –ery.  Delivery, deliverer, deliveree, deliverance & deliverability are nouns, deliver & delivered are verbs & adjectives, deliverable is a noun & adjective, delivering is a noun & verb; the noun plural is deliveries. 

Delivery systems

The definition of delivery systems tends to be elastic, ranging from simple, single-se devices to entire trans-national human and industrial processes.  A hypodermic syringe can be thought a delivery system for a vaccine yet that vital machine is just one, small, inexpensive part in the delivery system for a vaccination programme in response to a pandemic.  Such a global programme demands a delivery system with many human and mechanical components: research, development, testing, multi-jurisdiction legal & regulatory compliance, production, distribution, software, hardware, refrigeration, storage and administration, all before the first nurse has delivered even one injection.

The Manhattan Project's uranium-based Little Boy (left & dropped on Hiroshima) and the plutonium implosion-type Fat Man (right & dropped on Nagasaki).  So confident was the project team in the reliability of the uranium bomb it wasn't tested prior to use while the worlds first nuclear explosion was the "Trinity Test" conducted in the New Mexico desert on 16 July 1945 when a plutonium device was detonated.  For decades, as a uranium device, the Hiroshima was a genuine one-off, all the nuclear weapons built using plutonium but it's possible that more recent entrants to the club such as the DPRK (North Korea) and Pakistan may have been attracted to uranium because of the speed and simplicity of construction. 

Delivery systems can thus be very expensive and it's not uncommon for the cost vastly to exceed whatever it is they were created to deliver.  The Manhattan Project (1942-1947) which produced the first nuclear weapons officially cost some two billion dollars ($US2,000.000,000) at a time when a billion dollars was a lot of money.  Expressed as pre-pandemic (2018-2019) money, the A-bomb project probably cost the equivalent of some US$30 billion and somewhat more once adjusted for recent inflation.  Given the physics and engineering involved, the cost seems not unexceptional but remarkably, the development of the best-known component of the bomb's delivery system was more expensive still.  Between the first studies in 1938 and its eventual commissioning in 1944, Boeing’s B29 Superfortress absorbed over three billion dollars even though, unlike the bomb which was revolutionary and startlingly new, conceptually, the bomber was an evolution of the existing B17.  It was however a collection of challenges in engineering which grew in extent and complexity as the project progressed and it was soon realized the initial specifications would need significantly to be upgraded to produce a machine which reliably could carry the desired bomb-load at the necessary altitude over the vast distances missions in the Pacific would demand.

The Boeing B29 (Enola Gay) used to deliver "Little Boy" to Hiroshima.  It was one of the "Silverplate" run which integrated a number of weight-saving measures and aerodynamic improvements as well as the modified bomb-bay.

It was the B29's engines which were the cause of much of the effort.  Early modelling suggested the use of six or even eight engines was viable in terms of a flyable airframe but the approach would so compromise the range and load capacity it would render the thing useless for the intended purpose so the four-engine configuration had to be maintained.  Jet engines would have been the answer but at that stage of their development, they lacked power, reliability and their fuel consumption was too high so a new piston engine was needed and that it would need to be of larger capacity was obvious.  However, it needed also to be of a design which didn't significantly increase frontal area so the only solution was effectively to couple two engines, one sitting behind the other.  That delivered the necessary power and the weight increase could be tolerated but induced a tendency to overheat because the rearward components received so much less of the cooling air-flow.  What made the consequences of that worse was the use of so much weight-saving but highly combustible magnesium and although ameliorated during development and in service, the inherent problem was never entirely solved and it was only in the post-war years when a different engine was fitted that the issue vanished.  As a quirk of history, although now thought of as the A-bomb's delivery system, the B29 was obviously never designed with it in mind and when the time came, it was found it didn't fit in the bomb-bay.  The Royal Air Force's (RAF) Avro Lancaster could have carried it but the US military declined to consider that option and a special run (the "Silverplates") of B29s was constructed with the necessary modifications.

The 18-cylinder, two-row Wright R-3350 Duplex-Cyclone radial used in the war-time B-29s (left) and the 28-cylinder four-row Pratt & Whitney R-4360 Wasp Major radial adopted post-war.    

However, although a wartime necessity, the big piston engines were a military cul-de-sac but an innovation in the B-29 which was influential was the use of what would now be understood as a "computer-directed" (not "computer-controlled" as is sometimes stated) fire control systems which allowed two crew remotely to operate the four-turret defensive armament.  Systems like that, of which there were a few, were a reason the B-29 venture was so expensive but there have been analysts who have looked at the records of both it and the Manhattan Project and concluded the costs of the latter were probably understated because, as something for years top-secret until the bombing of Hiroshima was announced in August 1945, a significant proportion of the real expenses were charged elsewhere (notably distributed among the military's many other activities) to hide things from congressional view, everyone involved knowing that if something needs to be kept secret, the last people who should be told are politicians.  Estimates of the extent of the accounting slight-of-hand have varied but it has been suggested it may have been as high as 25%.  In industry, such thing are far from unknown.  It's long amused some that the failure of Ford's doomed Edsel (1958-1960) could be attributed to it being little more than a superficial variation of existing Ford & Mercury models (sharing engines, transmissions, platforms & assembly plants) yet when the brand was dumped Ford booked a loss of US$250 million (US$2.6 billion in 2023 dollars).  There were all sorts of corporate advantages in stating the loss as it was done and it involved things like charging the cost of developing one of the engines used wholly against the Edsel programme, even though it would serve in millions of Fords and Mercury models until 1976.

Beware of imitations: The US Boeing B-29 and the Soviet Tupolev Tu-4 clone.

One unintended beneficiary of the huge investment in the B29 was the Soviet Air Force.  Three B29s had fallen into Russian hands after emergency landing on Soviet territory and these, despite repeated requests, Moscow declined to return to their rightful owners, instead taking one apart and meticulously, part-by-part, duplicating every piece and from this, assembled their own which was released as the Tupolev Tu-4 (NATO reporting name: Bull).  In production between 1949-1952, the reverse-engineered clone remained on the active list of the Soviet military until 1964 and some were still in service with the Chinese PLA (People's Liberation Army) in 1987.  Although the Tupolev lacked some of the Boeing's advanced electronics, the Russian engineers managed to deliver an aircraft close in weight to the original despite not have access to some of the more exotic metals although it was later admitted to achieve that there were some compromises in the structural redundancies fitted.

The German V2 (one of the Vergeltungswaffen ("retaliatory weapons" or "reprisal weapons")), the worlds first ballistic missile.  As a delivery system, although inaccurate, even in 1945 it would have been effective had a nuclear warhead been available but its small payload limited its application as a strategic weapon and it was able to be produced at scale only because of the use of expendable slave labor. 

In a more conventional use of the spoils of war, the Americans were also the beneficiaries of the development of someone else's delivery system.  Nazi Germany’s big V2 (A4) rockets were (more-or-less) perfected at a cost which after the war was revealed to be higher even than the official number booked against the Manhattan project and that was not surprising given it was in its way just as ambitious.  In what was a hastily organised effort, the Allied occupation forces in 1945 rushed to grab as much of the material associated with the V2 as they could lay their hands on, train-loads of components, drawings, machine tools and test rigs sent westward from territory which, under the terms agreed at the Yalta Conference (February 1945) were to be handed to the Russian.  Just as significantly, there was a major round-up of German scientists, engineers and technicians who has worked on the V2, most of whom were anxious to be "rounded-up" by the Americans, the alternative being a career in Russian "employment".  The round-up (operation paperclip) remains controversial because matters like a Nazi past or complicity in the use of slave labor were often overlooked if an individual's contribution to the Cold War was thought to be of value and the V2 certainly saved the US from having to spend much money and perhaps a decade or more developing its own delivery system for nuclear warheads and not only were the ICBMs (intercontinental ballistic missiles) lineal V2 descendents, so was the Saturn V delivery system for the Apollo missions which enabled a dozen men to walk on the moon.

Post delivery: Lindsay Lohan's nursery in a theme of aquatic blue & white.

In humans, the female of the species is final component of the delivery system and on 17 Jul 2023 Lindsay Lohan announced she had delivered a baby boy, named Luai (an Arabic name which can be translated as “shield” or “protector”).  The child’s career in commerce has already begun, Ms Lohan partnering with Nestig to design not only her nautically-flavored nursery, but also a collection of baby products inspired by the imagery of the sea.  The nursery is a functional space in that the brand’s Wave dresser is adaptable to dual-use as a changing table and Nestig's cloud crib is modular and may later be converted into a toddler bed.

Lindsay Lohan with Nestig Aviator Mobile.  The aviator mobile was said to be “designed in partnership with Lindsay Lohan” and “handcrafted and hand-assembled by artisans in Brazil from wood, felt and locally-sourced wool” each “thoughtfully packaged in a Nestig gift box” (US$85; attachment arm sold separately).

Gaffer & Duct

Gaffer (pronounced gaf-er)

(1) The chief electrician on the set of a movie or television show.

(2) In informal use, a boss, supervisor, or manager.

(3) In informal use, an old man, especially one living in the country (often used affectionately or patronizingly).

(4) A foreman or overseer in charge of a group of physical laborers; the coach or manager of a sports team.

(5) In glassmaking, a master glassblower responsible for shaping glassware.

(6) Slang for boy or youth (unique to Ireland); used in maritime regions to refer to the baby of the house.

(7) A type of tape used usually as a safety device to tape-down cables to reduce the risk of tripping hazards (technically gaffer’s tape).

(8) A boat's crew member whose duty is to gaff (a tool consisting of a large metal hook with a handle or pole, especially the one used to pull large fish aboard a boat) a (large) fish once the angler has reeled it in.

(9) In slang, as “to gaff”, “gaffered” or ”to gaffer”, a description of some temporary or roughly improvised repair using gaffer tape or some other quick and dirty method; “to make a gaff” as a description of a mistake is a variation of this.

1565–1575: Thought likely to be a contraction of godfather, but with the vowels influenced by grandfather.  The use to describe “an elderly rustic" was apparently based on continental analogies (compare gammer and the related French compère and German Gevatter).  It seems originally to have been a term of respect, also applied familiarly; from "old man" and was by 1841 extended to foremen and supervisors generally.  In UK police forces, it’s common slang to describe the officer in charge of a particular section or squad and in Association Football (soccer), the head coach or manager.  In the early twentieth century, it was carried over to the electrician or technician in charge of lighting on a film set because the natural lighting on early film sets was adjusted by opening and closing flaps in the tent, these cloths called gaff cloths or gaff flaps.  Because the technician used a long pole with a hook known as a “gaff hook”, he came to be known as a “the gaff hooker” and, as English does when users find there are too many syllables, this was truncated to “the gaffer”.  The tape later used for electrical cables was almost exclusively in the gaffers' toolboxes and thus became “gaffer’s tape”.  Now it’s known almost always as “gaffer tape”.  Gaffer is a noun; the noun plural is gaffers.

Ad-hoc wrap: 1986 Oldsmobile Cutlass Calais two door coupe, "duct tape" version.

Duct (pronounced duhkt)

(1) Any tube, canal, pipe, or conduit by which a fluid, air, or other substance is conducted or conveyed.

(2) In anatomy and zoology, a tube, canal, or vessel conveying a body fluid, especially a glandular secretion or excretion.

(3) In botany, a cavity or vessel formed by elongated cells or by many cells.

(4) In the infrastructure of electricity, a single enclosed runway for conductors or cables.

(5) In a printing press, the reservoir for ink.

(6) Guidance; direction; quotation (obsolete).

1640-1650: From the Latin ductus (conveyance of water; a leading, a conduit pipe), noun use of the past participle of ducere (to lead) from dūcō (I lead, draw), from the primitive Indo-European root deuk (to lead).  Use has endured in the Medieval Latin aqueduct and the high rank of aristocracy, duke, drawn from the past participle of ducere (to lead); the construct was duc (variant stem of dūcere (to lead)) + tus (suffix of verbal action).  The meaning in an anatomical sense (vessel of an animal body by which blood, lymph etc, are conveyed) was first noted in the 1660s while that of a "conduit or channel" dates from 1713.  Use in a variety of architectural and engineering contexts to describe "tubes in a structure" developed after the use to describe an "air tube" in 1884.  Duct & ducting are nouns & verbs, ducted is a verb & adjective and ductal is an adjective; the noun plural is ducts.

Manhattan Project, Los Alamos, New Mexico, July, 1945.

Canadian physicist Louis Slotin (1910–1946, left) and US electronics technician Herb Lerh (1922-2018, right) with the partially assembled “Gadget”.  The small, strapped-down cylinder at the bottom-right is the tamper plug cylinder that would be inserted into the bomb’s housing.  Slotin died in an accident involving the “Demon Core” which picked up its dark nickname because, in an earlier accident, it had also claimed the life of US physicist Haroutune Krikor “Harry” Daghlian (1921-1945).

Gadget was the first nuclear device, detonated in the Trinity test in New Mexico on 16 July, 1945, some three weeks before the A-bomb was dropped on the Japanese city of Hiroshima.On learning nuclear fission had been mastered, Winston Churchill (1875-1965; UK prime-minister 1940-1945 & 1951-1955) observed: “fire was the first discovery, this is the second.”  Despite that feeling, after this photograph was de-classified and published, what much amused some was that even with state-of-the-art nuclear physics, duct tape was apparently still essential.  Like the third bomb (dropped on Nagasaki) the Gadget was a “plutonium implosion fission” bomb whereas the one used against Hiroshima attack was “uranium gun-type fission” design.  By the standards of nuclear physics, the “gun-type” design was relatively simple and so confident were the scientists it was thought not necessary to conduct a test prior to operational use.  However, the design could be used only with a uranium core and, at the time, it was difficult and time-consuming to produce in the required volume uranium of the correct type.  By contrast, weapons-grade plutonium could more quickly be produced but the method to trigger the detonation was wholly a new theory, thus the need for the Trinity test.  The Hiroshima bomb was a genuine one-off, all subsequent nuclear weapons using a plutonium core (although some have speculated one or more of the tests conducted by the DPRK (Democratic People’s Republic of Korea, North Korea) may have had uranium cores.

Duct and Gaffer Tape

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

Duct tape was in 1894 originally sold under the name duck tape, long, non-adhesive strips of plain cotton duck cloth used in various mechanical processes.  The name was transferred to a plastic-coated adhesive tape used by U.S. soldiers in World War II, probably because of its waterproof qualities (ie the sense of "water off a duck's back").  It continued in civilian use after the war, and the name shifted to duct tape by 1958, perhaps because the most common use was in air ducts, which also accounts for its still standard silver-gray color. Often casually regarded as interchangeable, duct and gaffer tapes are constructed differently because they’re intended for different purposes.  Indeed, using one for the intended application of the other can cause messy or worse results.  They’re similar in that both are hand-tearable, conform well to uneven surfaces and tend to be sold in the same packaging and sizes.  Duct tape is constructed with a polyethylene (PE) cloth backing, a material that makes it waterproof and contains an aggressive, rubber-based glue, allowing it easily to adhere to many of surfaces.   Duct tape has (1) a shiny, reflective backing, (2) is for semi-permanent or permanent applications and (3) tends to leave an adhesive residue when removed.  A specialized variation is a heat-resistant foil (not cloth) duct tape, useful for sealing heating and cooling ducts.  For decades silvery gray, it’s now available in colors and even printed designs.

Duct tape fashion: Lindsay Lohan in duct tape cocktail dress.  Tape is 3M Utility Duct Tape 2929 (Silver) and the shoes are Jimmy Choo Patent Leather Sandals.

Gaffer tape is made with a coated cloth backing and a synthetic, rubber-based glue.  Because it doesn’t have the PE backing, gaffer tape is not waterproof but the barrier properties in the backing make it moisture resistant in most cases.  This means it shouldn’t be used for waterproofing but is suitable for temporary use in high-humidity and moist environments. The adhesive on gaffer tape is less aggressive than duct tape, rendering it more easily removed when temporary need is over.  Because of its origins in the theatre, gaffer tape traditionally had a matte white or black backing to reduce the reflection of light but is now available in colored gloss finishes.  It's important gaffer tape be (relatively) easy to remove because in most cases its use intrinsically is temporary, typically to render cables run here and there safe, ensuring they['re not a trip hazard.  Unfortunately, because the adhesive used needs still to be strong enough to stick to surfaces as long as is required, a residue can be left on some surfaces, notably carpets and this is more apparent on some colors.  Many techs have been shouted at by those upset at what's been done to their carpets.

Piet Mondrian’s 1941 New York City 1 as it (presumably correctly) sat in the artist's studio in 1944 (left) and as it has since 1945 been exhibited (upside-down) in New York and Düsseldorf (right).  Spot the difference. 

The term “duct tape fashion” seems to have become a generic, possibly because of the dark association of the stuff with kidnappings and abductions but many of the products so described actually use different types of tape, such as the New York City series of abstract works created in the 1940s with multi-colored paper tape by the Dutch artist Piet Mondrian’s (1872-1944).  The critics responded well to the works although one version, first exhibited at New York’s Museum of Modern Art (MOMA) in 1945, has since 1980 hung upside down in the Düsseldorf Museum as part of the Kunstsammlung Nordrhein-Westfalen’s collection.  The revelation critics and curators for 80 years discussed and interpreted Mondrian’s meaning despite it being upside down was greeted with glee by those sceptical of modern art but the piece was unsigned, sometimes an indication the artist deemed it unfinished but he left no notes.

On the catwalk: The Black Tape Project at Miami Swim Week, July 2023.

Predictably, the “duct tape bikini” was, in terms of publicity generated, the highlight of Miami Swim Week in July 2023 but for some it was a surprise to see the return of the (trademarked) Black Tape Project because in New York, not six months earlier, Joel Alvarez (creator of the project), announced the brand had staged its “final show”.  Stories duly were written but at Swim Week it transpired the “brand” being discontinued was “Joel Alvarez” and that having “…buried Joel Alvarez on that stage in front of the world”, henceforth he’d be known as “Drakhan Blackhart” and nobody denied that was a wonderful name.  On Instagram (@thekingoftape), Mr Blackhart informed the world he was the “…creator of the Black Tape Project™.  I am the world's only body tape expert, founder and pioneer of the Body Tape Art Genre.  Because of my concepts, I've been able to travel to over 42 countries and counting.”

Nice work if you can get it: An artist dedicated to his craft, Mr Blackhart “hand-applies” the black tape and studs.

Less became more during Mr Blackhart’s half-year hiatus from tape shows because what showed up on the Miami catwalk was even skimpier than what had been seen before; always minimalist, the results were now tending to the minuscule so as well as creating much interest, production costs were lowered because less tape was now required.  Of course, reducing the volume of tape brings artistic challenges because there’s less scope to introduce differences in the designs but it’s not for no reason the imaginative Mr Blackhart describes himself as the “King of Tape”: While conceptually all the installations (that does seem the right word) on the models were by definition “variations on a theme of black tape”, there was enough variety in the placement to keep the audience’s attention.  What the approach does mean is that the point must soon be reached where the possibilities have been exhausted so it may not be long before Black Tape Project models appear adorned with tapes of different colors and that could create a whole new language although there seems not reason why colors can't appear under the "Black Tape" brand.

The language of catwalk tape: From the Black Tape Project (left) and Miami Art Body Tape (right), Miami Swim Week, 2023.

The “duct tape fashion” business is also becoming crowded, Miami Art Body Tape presenting its debut show at a Miami Swim Week event in June.  While he discussed the aesthetic, brand founder Andrei Stamate also revealed interesting technical aspects about the use of the technique, explaining the tape is more difficult to apply than it is to remove and the peeling off “…doesn’t hurt as much as you’d think”; it’s assumed he was speaking from the models’ point of view.  The “body tape” used is of course different in construction and adhesive quality from industrial types such as gaffer or duct-tape but nor was it quite the same as medical grade tape or the famous “Hollywood tape”, the latter better known by the colloquial term “tit tape”.  Body tape “…sticks very well but if the models sweat it could come off” Mr Stamate revealed and has a better grip than the metallic types which he described as “sensitive”.