Ether vs. Space — What's the Difference?

Ethers are a class of organic compounds that contain an ether group—an oxygen atom connected to two alkyl or aryl groups. They have the general formula R–O–R′, where R and R′ represent the alkyl or aryl groups.

Space is the boundless three-dimensional extent in which objects and events have relative position and direction. In classical physics, physical space is often conceived in three linear dimensions, although modern physicists usually consider it, with time, to be part of a boundless four-dimensional continuum known as spacetime.

Any of a class of organic compounds in which two hydrocarbon groups are linked by an oxygen atom.

(Mathematics) A set of elements or points satisfying specified geometric postulates

A volatile, highly flammable liquid, C4H10O, derived from distilling ethyl alcohol with sulfuric acid, used as a reagent and solvent, and formerly used as an anesthetic. Also called diethyl ether, ethyl ether.

The infinite extension of the three-dimensional region in which all matter exists.

The regions of space beyond the earth's atmosphere; the heavens.

The expanse in which the solar system, stars, and galaxies exist; the universe.

The element believed in ancient and medieval civilizations to fill all space above the sphere of the moon and to compose the stars and planets.

The region of this expanse beyond Earth's atmosphere.

(Physics) An all-pervading, infinitely elastic, massless medium formerly postulated as the medium of propagation of electromagnetic waves.

An extent or expanse of a surface or three-dimensional area

The substance formerly supposed to fill the upper regions of the atmosphere above the clouds, in particular as a medium breathed by deities.

A blank or empty area

(by extension) The medium breathed by human beings; the air.

An area provided for a particular purpose

(by extension) The sky, the heavens; the void, nothingness.

Reserved or available accommodation on a public transportation vehicle.

Often as aether and more fully as luminiferous aether: a substance once thought to fill all unoccupied space that allowed electromagnetic waves to pass through it and interact with matter, without exerting any resistance to matter or energy; its existence was disproved by the 1887 Michelson–Morley experiment and the theory of relativity propounded by Albert Einstein (1879–1955).

A period or interval of time

The atmosphere or space as a medium for broadcasting radio and television signals; also, a notional space through which Internet and other digital communications take place; cyberspace.

A little while

A particular quality created by or surrounding an object, person, or place; an atmosphere, an aura.

Sufficient freedom from external pressure to develop or explore one's needs, interests, and individuality

Diethyl ether (C4H10O), an organic compound with a sweet odour used in the past as an anaesthetic.

(Music) One of the intervals between the lines of a staff.

Any of a class of organic compounds containing an oxygen atom bonded to two hydrocarbon groups.

(Printing) One of the blank pieces of type or other means used for separating words or characters.

(uncountable) Starting fluid.

One of the intervals during the telegraphic transmission of a message when the key is open or not in contact.

To viciously humiliate or insult.

Blank sections in printed material or broadcast time available for use by advertisers.

A medium of great elasticity and extreme tenuity, once supposed to pervade all space, the interior of solid bodies not excepted, and to be the medium of transmission of light and heat; hence often called luminiferous ether. It is no longer believed that such a medium is required for the transmission of electromagnetic waves; the modern use of the term is mostly a figurative term for empty space, or for literary effect, and not intended to imply the actual existence of a physical medium. However. modern cosmological theories based on quantum field theory do not rule out the possibility that the inherent energy of the vacuum is greater than zero, in which case the concept of an ether pervading the vacuum may have more than metaphoric meaning.

To organize or arrange with spaces between

Supposed matter above the air; the air itself.

To separate or keep apart

A light, volatile, mobile, inflammable liquid, (C2H5)2O, of a characteristic aromatic odor, obtained by the distillation of alcohol with sulphuric acid, and hence called also sulphuric ether. It is a powerful solvent of fats, resins, and pyroxylin, but finds its chief use as an anæsthetic. Commonly called ethyl ether to distinguish it from other ethers, and also ethyl oxide.

(Slang) To stupefy or disorient. Often used with out

A colorless volatile highly inflammable liquid formerly used as an inhalation anesthetic

To be or become stupefied or disoriented. Often used with out

The fifth and highest element after air and earth and fire and water; was believed to be the substance composing all heavenly bodies

(heading) Of time.

Any of a class of organic compounds that have two hydrocarbon groups linked by an oxygen atom

Free time; leisure, opportunity.

A medium that was once supposed to fill all space and to support the propagation of electromagnetic waves

A specific (specified) period of time.

An undefined period of time (without qualifier, especially a short period); a while.

(heading) Unlimited or generalized extent, physical or otherwise.

Distance between things.

Physical extent across two or three dimensions (sometimes for or to do something).

Physical extent in all directions, seen as an attribute of the universe (now usually considered as a part of space-time), or a mathematical model of this.

The near-vacuum in which planets, stars and other celestial objects are situated; the universe beyond the earth's atmosphere.

The physical and psychological area one needs within which to live or operate; personal freedom.

(heading) A bounded or specific extent, physical or otherwise.

A (chiefly empty) area or volume with set limits or boundaries.

(music) A position on the staff or stave bounded by lines.

A gap in text between words, lines etc., or a digital character used to create such a gap.

(metal type) A piece of metal type used to separate words, cast lower than other type so as not to take ink, especially one that is narrower than one en (compare quad).

A gap; an empty place.

(geometry) A set of points, each of which is uniquely specified by a number (the dimensionality) of coordinates.

A generalized construct or set whose members have some property in common; typically there will be a geometric metaphor allowing these members to be viewed as "points". Often used with a restricting modifier describing the members (e.g. vector space), or indicating the inventor of the construct (e.g. Hilbert space).

A field, area, or sphere of activity or endeavour.

Anything analogous to a physical space in which one can interact, such as an online chat room.

To roam, walk, wander.

(transitive) To set some distance apart.

To insert or utilise spaces in a written text.

To eject into outer space, usually without a space suit.

To travel into and through outer space.

Extension, considered independently of anything which it may contain; that which makes extended objects conceivable and possible.

Place, having more or less extension; room.

A quantity or portion of extension; distance from one thing to another; an interval between any two or more objects; as, the space between two stars or two hills; the sound was heard for the space of a mile.

Quantity of time; an interval between two points of time; duration; time.

A short time; a while.

Walk; track; path; course.

A small piece of metal cast lower than a face type, so as not to receive the ink in printing, - used to separate words or letters.

One of the intervals, or open places, between the lines of the staff.

That portion of the universe outside the earth or its atmosphere; - called also outer space.

To walk; to rove; to roam.

To arrange or adjust the spaces in or between; as, to space words, lines, or letters.

The unlimited expanse in which everything is located;

An empty area (usually bounded in some way between things);

An area reserved for some particular purpose;

A blank character used to separate successive words in writing or printing;

The interval between two times;

A blank area;

One of the areas between or below or above the lines of a musical staff;

(printing) a block of type without a raised letter; used for spacing between words

Place at intervals;