Everybody knows that space is filled with aether, which is the medium upon which magnetic radio waves, x-rays, and light travel.
I know because read about it in my 1040’s Radio Theory book.
They had radio theory back in the 11th century?
And I thought my 1985 AARL ‘Antenna theory’ book was old!!!
:-)
Was 1040’s supposed to be 1940’s? The aether was pretty much discarded by the 1940’s, it is not necessary and does not add anything. Basically, the “aether” was the coordinate system in which Maxwell’s equations applied. Einstein “simplified” things by saying they apply in any inertial coordinate frame, but never managed to specify what an inertial coordinate frame is, though on timescales of nanoseconds over distances of a few meters, the surface of the earth is a good approximation.