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Greetings everyone. I overheard someone trying to explain how
light propagates. They stated that the electrical and magnetic waves
move perpendicular to one another. The resultant is a spiral wave. He
then went on to demonstrate with a cord of the magnetic wave moving side
to side and the electrical wave moving up and down, then with the light
wave, the end of the cord was spun around in a circle producing a
spiralling wave down the cord.