Above can (hopefully) be seen a purported paranormal event. A medium is emitting ectoplasm which is forming into a face. The ectoplasm is a subtle element, not usually perceived by human senses. The Ether is another such subtle element. “If it cannot be measured, it doesn’t exist,” say some “scientists.” Others argue The Ether can be deduced and does exist.
Popular science writer Isaac Asimov explained that The Ether was an “extremely rarified gas” and was called “ether, from a word first used by Aristotle to describe the substance making up the heavens and the heavenly bodies.” (Understanding Physics, Volume 2, chapter 6.)
The so-called Aristotle (really a group of natural philosophers designated “Aristotle”) seems from my reading not to have completely grasped the qualities of The Ether. Considering the universe to be an immense body, Aristotle pondered, “there is nothing out of which this body can have been generated. And if it is exempt from increase and destruction, the same reasoning leads us to suppose that it is also unalterable.” Aristotle called it the “primary body.” The primary body is divine and immortal. Other authors contemporaneous with Aristotle implied “that the primary body is something else beyond earth, fire, air, and water, [and] they gave the highest place the name of aether, derived from the fact that it ‘runs always’ for an eternity of time.” (On The Heavens, Book 1, chapter 3.)
But to say that The Ether “runs always” is contrary to the reality that The Ether is at “absolute rest.” (Background: Our Friend, The Ether (Part 3), Ersjdamoo’s Blog entry of October 12, 2013.)
Nonetheless continuing with his “runs always” theme, Aristotle adds that a “body that was eternally in motion was also divine in nature; and, as such a body was different from any of the terrestrial elements, they determined to call it ‘ether.’” (Meteorology, Book 1, chapter 3.)
Only after consideration of the “primary body” which “ran always” did Aristotle delve into an immovable something else. Beyond the primary body which “runs always”, must not “there be something immovable and at rest outside of what is moved…”? Citing Homer’s Illiad, Aristotle considers these words to be well spoken:
Nay, you would not pull Zeus, highest of all, from heaven to the plain, no not even if ye toiled right hard; come, all ye gods and goddesses! Set hands to the chain.
You cannot pull Zeus from heaven because “that which is entirely immovable cannot possibly be moved by anything.” The system of the heavens (the “primary body”) “depends from an origin which is immovable.” (Movement Of Animals, chapter 4.)
What moves the heavens? A prime mover which is at absolute rest. How can bodies having no life nonetheless move? They are moved via “action at a distance.”
A force which accomplishes this “action at a distance” is gravity. Besides heat and light conveyed from the sun via The Ether, there is also a giant gravitational pull. The Ether is so dense that it is “incompressible”, according to Sir Oliver Lodge. By “dense” Sir Lodge apparently means a density of atoms whereby nonetheless The Ether is also an extremely rarefied gas which cannot be perceived by human senses. Due to its “incompressible” mass, The Ether is strong enough to do what a million million steel rods, each seventeen feet in diameter, could not: enable the gravitational pull from the sun. (The Ether Of Space, by Sir Oliver Lodge.)