Ether

Ether (pronounced ee-ther)

(1) In chemistry, Pharmacology and (pre-modern) surgery, A colorless, highly volatile, flammable liquid (C₄H₁₀O), having an aromatic odor and sweet, burning taste, derived from ethyl alcohol by the action of sulfuric acid.  It was used as a powerful solvent and as an inhalant anesthetic (also called diethyl ether, diethyl oxide, ethyl ether, ethyl oxide, sulfuric ether.

(2) In pre-modern chemistry, one of a class of compounds in which two organic groups are attached directly to an oxygen atom (the general formula ROR), as in diethyl ether (C₂H₅OC₂H₅).

(3) In Greek mythology, the upper regions of the atmosphere; clear sky or heaven (and from this long a rarely used word for “air”).

(4) In physics, a hypothetical substance supposed to occupy all space, postulated to account for the propagation of electromagnetic radiation through space, an idea picked up in the early days of radio broadcasting, the signal said to be “in the ether”.

(5) In chemistry, a starting fluid.

(6) Figuratively, a particular quality created by or surrounding an object, person, or place; an atmosphere; an aura (probably most familiar in the form ethereal). 

1350-1400: From the Middle English ether (the caelum aetherum of ancient cosmology in which the planets orbit; a shining, fluid substance described as a form of air or fire; air), from the Middle French & Anglo-Norman ether, from the Old French aether (highest and purest part of the atmosphere; the medium supposedly filling the upper regions of space), from the Ancient Greek αἰθήρ (aithḗr) (purer upper air of the atmosphere; heaven, sky; theoretical medium supposed to fill unoccupied space and transmit heat and light), (akin to aíthein (to glow, burn)) or directly from its etymon New Latin aethēr (highest and purest part of the atmosphere; air; heavens, sky; light of day; ethereal matter surrounding a deity).  The ultimate source of the Greek was αἴθω (aíthō) (to burn, ignite; to blaze, shine), from the primitive Indo-European heyd- (to burn; fire).  It was related to the Old English ād (funeral pyre) and the Latin aestus (heat).  As late as the nineteenth century, it was not uncommon in English for the Latin-derived spelling aether to be used, probably because so much of what was in the books of apothecaries remained for so long unchanged.  The German-born chemist August Sigmund Frobenius (circa 1690-1741) was the first to use the name for the volatile chemical, his bestowal based on its properties.  The name entered English science in 1757 although it wasn’t until 1842 the anaesthetic properties were fully documented.  The English word was cognate with the obsolete Italian etere (ether & ethera both obsolete), the Middle Dutch ether, the modern Dutch ether (aether obsolete), the German Äther, the Portuguese éter and the Spanish éter.

In ancient cosmology, ether was the element filling all space beyond the sphere of the moon, constituting the substance of the stars and planets; in the imagination of Antiquity it was held by one school of thought to be a purer form of fire or air, by another as a fifth element.  From the seventeenth to nineteenth centuries, ether was part of scientific orthodoxy and the technical word for an assumed framework within which the forces of the universe interacted, perhaps without material properties.  As the scientific method evolved increasingly to demand proof of theories, doubts were expressed about the validity of the traditional view and in 1887 an experiment by American physicists Albert Michelson (1852-1931) and Edward Morley (1838-1923) cast such doubts on the notion that among others, Albert Einstein (1879-1955) was moved to begin calculations and the view of the nature of ether from Antiquity was completely dismissed after conclusive proof of the theory of relativity in 1919.  Despite that, having first been so used in 1899, the word endured well into the twentieth century to describe the path of the then seemingly mysterious radio broadcasts.

Lindsay Lohan during her dabble with Ethereum fueled NFT drops.  

Although the volatility and churn rate make it a hard sector to track, there are apparently over 20,000 currently active (in the sense of being listed somewhere and thus able to be traded) cryptocurrencies.  There are obvious attractions to creating one's own virtual currency because in a sense one is creating one's own money (usually in the millions) and if one can convince others (and guides to market manipulation have been published) to exchange their convertible currency for one's tokens, it can be a good business model.  One thankless task associated with cryptocurrencies however is coming up with a suitable name, something not of great importance once the creation gains critical mass but possibly quite influential when first listed.  It must be something like thinking of names for racehorses but harder still because not only must it be unique but it should also not be too close to other financial products (not just other virtual currencies).  Ethereum (ETH) was coined by Russian-Canadian programmer Vitalik Buterin (b 1994) who has in interviews revealed he chose the name after browsing Wikipedia for a list of fictional elements on based on ether.  One can certainly see the link and it makes more sense than the earlier Ethernet, originally a trademark of the Xerox Corporation, the construct being ether +‎ net(work).  Ethernet was a collection of cabling and network connectivity protocols standards for bus topology computer networks and to use the word "ether" was a bit of a leap, everything originally connected by cable whereas at least part of the Ethereum traffic travels through the ether (as it was understood in Antiquity).  With Ethernet cabling, there was thick and thin Ethernet and the physical cabling literally was thick and thin, the choice dictated by things like the distance to be covered, the number of nodes to be connected and the available budget.  In the world of cryptocurrency, think & thin means "going through thick & thin", hodling (holding) one's coins no matter what the fluctuations.