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A changing magnetic field will induce a changing electric field and vice-versa—the two are linked. These changing fields form electromagnetic waves.
Electromagnetic waves differ from mechanical waves in that they do not require a medium to propagate.
originally posted by: AntonGonist
a reply to: neutronflux
What medium is present in the vacuum of space if electromagnetic radiation is not self propagating?
According to science and other posters here, spacetime.......who said EM radiation, which is waves, is self propagating?
In physics, mathematics, and related fields, a wave is a disturbance of a field
An electromagnetic waves is propagated by the oscillations of the electric and magnetic fields.
This, practicality and functionally electromagnetic radiation is self propagating.
And you could say everything “propagates” through space time. I don’t think this thread would exist without space time. So in a sense everything needs space time. Is that false.
Electromagnetic radiation in fact will propagate through the absence of matter and energy through the vacuum of space. Is that false.
· Transverse wave.
· An electromagnetic waves is propagated by the oscillations of the electric and magnetic fields. A changing electric field produces a changing magnetic field and a changing magnetic field produces a changing electric field. Thus, an electromagnetic wave is self propagating and does not need a medium to travel through.
A progressive electromagnetic wave is a self-supporting, energy-carrying disturbance that travels free of its source.
Are you foreal? By propagating through a medium.